ThinkPad 365

The following provides an overview of the ThinkPad 365E and 365ED system features.

In the upper-right-hand portion of the testing screen (or just the upper portion if you switched to an individual test group screen) are the specifications for the related test group.

NOTE: In the Hard Disk Test Group specification area, if a software program was to compress your drive, the indicated size is the compressed size of the logical drive.

Use the following procedure as a guide for computer problems.

NOTE: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

1. Obtain the failing symptoms in as much detail as possible.  Pay close attention to the error messages on the screen.
2. Verify the symptoms by attempting to recreate the failure by  running the diagnostic test or by repeating the same operation. To run the diagnostics, refer to How to Run Diagnostics

Use the following table to locate the description that best matches the symptom, then go to the page indicated.

Use the following procedure as a guide for computer problems.

NOTE: The diagnostic tests are intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

1. Obtain the failing symptoms in as much detail as possible.- Verify the symptom. Attempt to recreate the failure by running the  diagnostic tests or retrying the same operation.

   NOTE: To run the diagnostics, refer to 'How to Run the Diagnostics'

   • Use the following table with the verified symptom to determine  which page to go to. Search the symptoms column  and find the description  that best matches your symptom; then go to the page shown in the Go to column.

   Symptom	Go to
   Power failure. (The power indicator does not go on or stay on.)	'Power Systems Checkout'
   POST does not complete. No beeps/error code are indicated.	'Symptom-to-FRU Index' and then use the 'No Beep Symptoms' table.
   POST beeps, but no error codes are displayed.	'Symptom-to-FRU Index' and then use the 'Beep Symptoms' table.
   POST detected an error and displayed numeric error codes.	'Symptom-to-FRU Index' and then use the 'Numeric Error Codes' table.
   The diagnostic test detected an error and displayed an FRU code.	'How to Run the Diagnostics'
   The configuration is not the same as the installed devices.	'Checking the Installed Devices List'
   Other symptoms (such as LCD display problems).	'Symptom-to-FRU Index', and then use the 'Other Symptoms' table.
   Symptoms cannot be recreated. (Intermittent problems.)	Use the customer reported symptoms and go to 'Symptom-to-FRU Index'

The QAPlus/PRO diagnostic program, developed by DiagSoft for IBM, is the primary method of testing the computer. It is unique to the ThinkPad 365 and will not run on other models.

You can use it to test the IBM components of the system and some external devices. The amount of time required to test all components depends on the number of components. The more optional adapters and devices you have attached to your system, the longer the testing takes.

  Before loading the diagnostics program:

1. Go to a DOS full screen.
2. Press Ctrl + Alt + F11 to go to the setup  screen.
3. Verify all peripherals devices are enabled.
4. Page Down to the second page and verify all peripherals are enabled.

The diagnostics program is intended to test only IBM products. Non-IBM products, prototype cards, or modified options can give false errors and invalid system responses.

To load the IBM ThinkPad 365 Advanced Diagnostics Diskette, see 'Loading the IBM ThinkPad 365 Advanced Diagnostics Diskette'

The test programs provide tests and utilities for users and service or support professionals to troubleshoot even the most difficult problems.

You can maneuver within the test programs by typing the first letter of a menu choice, or using the TrackPoint III pointer.

Throughout the test programs, pressing the first letter of an option on a menu is the same as moving to that item with the cursor and pressing Enter.

  To use the IBM ThinkPad 365 Advanced Diagnostics Diskette, you must have at least 500KB of free memory. Be sure to read the README.PO file on the IBM ThinkPad 365 Advanced Diagnostics Diskette before using the following instructions.

1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to the  Main Menu. Allow two to four minutes for the diagnostic  programs to load.
5. At the Main Menu, select the test to run.
6. Press Enter to run the test selected.
7. After starting a test, do not press any key until prompted,  then follow the instructions on the screen.
8. When the test is completed, press Esc twice to return  to the main menu.
9. Select Exit .

  How to Run the Diagnostics

Use either the TrackPoint III or the cursor move keys to interact with the tests. The Enter key works the same as selecting the OK icon to reply OK.

NOTE: The following tools are required:

FDD        Erasable 2HD diskette
       Parallel   Wrap plug     (P/N 72X8546)
       Serial     Wrap plug     (P/N 72X8546)
       PCMCIA     PC Test Card  (P/N 35G4703)

1. Press and hold the F1 key, then power-on the computer.  Hold the F1 key down until the Easy-setup screen appears.- Select Test and press Enter.- Select a device and press Enter to run the test.- The test progress screen appears.- OK appears when the test ends without any errors.- Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu screen.- Select Tool to install the tools.- Select a device, press the Spacebar and  install the tool. Multiple devices can be selected by repeating  this step.

              A **OK Check Mark** appears for the selected device.
            - Select **OK** and press Enter
               if the selection is OK.- Select a device and press Enter to start the tests.- Select **Test All** to test all devices.- Select **Loop Test** to loop tests.
   
                     A loop option menu appears in which a device loop or all loop can be
                     selected. Select a device and press the **spacebar** to select
                     a device. Repeat this step to select multiple devices.
                     Press Enter to start the diagnostic loop. If no device is selected,
                     all device tests are looped.
   
                    - To exit the loop,
                       keep pressing **Ctrl+Pause** until the test exits.
                       A beep sounds to notify that the exit interrupt is sensed by the taest program.
   

  Running the Diagnostics

Use either the TrackPoint III or the cursor move keys to interact with the tests.

The Enter key works the same as selecting the OK icon to reply OK.

NOTE: The following are the special tools used with the diagnostics.

1. Press and hold the F1 key, then power-on the computer.

Hold the F1 key down until the Easy-setup window appears.- Click on Test. The basic diagnostic menu window appears.- Click on a device to run the test.  The test progress screen appears, then OK appears under the tested device icon when the test ends without any errors.- Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu screen.  The ThinkPad FRU connections window appears.- Click on Exit or press Esc key. The keyboard test window appears.- When you press a key, a mark appears or disappears on the corresponding key position  on the screen. Repeat this step for any keys that need to be tested. You can run the keyboard  test if you press Ctrl+K key at the advanced diagnostic test mode.- To exit the keyboard test, click on Exit or press Ctrl+Break. The  Advanced Diagnostics window appears:

           ![560_5](/static/parts/img/4a3178398908.gif)


           - Click on a device, to test it, or click on **Test All** to test
              all devices.

              Click on **Looptest** to run tests in a repeated loop. The loop option menu window appears.
              Click on a device, the **OK** mark appears beside the selected device. Repeat this step to select multiple devices.
              Click on **OK** to start the diagnostic loop. If no device is selected, all devices tests are looped.

             - To exit the loop,
                keep pressing **Ctrl+Pause** until the test exits.

                A beep sounds to notify that the exit interrupt is sensed by the test program.

                Press **Esc** to exit from the loop test.

The Symptom-to-FRU Index lists error symptoms and possible causes. The most likely cause is listed first. Always begin with 'General Checkout' This index can also be used to help you decide which FRUs to have available when servicing a computer.

If you are unable to correct the problem using this index, go to 'Undetermined Problems'

NOTE:

• If you have both an error message and an  incorrect audio response, diagnose the error message first.
• Check all power supply voltages before you replace the system board.  (See 'Power Systems Checkout' ).

The Symptom-to-FRU Index lists the symptoms, errors, and possible causes. (It can be used to help you decide which FRUs to have available when servicing the computer.) The most likely cause is listed first.

NOTE: Perform the FRU replacement or actions in the sequence shown in the FRU/Action column. If a FRU does not solve the problem, put the original part back in the computer and perform the next action.

Numeric error codes show the errors detected in POST or system operation. In the following error codes, X can be any number.

If no codes are available, use narrative symptoms.

If the symptom is not listed, go to 'Undetermined Problems'

NOTE: For IBM devices not supported by diagnostic codes in the ThinkPad notebook computers, see the manual for that device.

For 2640-560 see -> 'Numeric Error Codes'

For 2640-560x 60x, 70x see -> 'Numeric Error Codes'

Numeric Error Codes

Beeps symptoms are short tones or a series of short tones separated by pauses (intervals without sound). See the following examples.

Intermittent system hang problems can be caused by a variety of reasons that have nothing to do with a hardware defect such as:

cosmic radiation, electrostatic discharge, or software errors.

FRU replacement should only be considered when a recurring problems exits.

When analyzing the intermittent problem, do the following:

1. Run the diagnostic test for the system board in loop mode  at least 10 times.
2. If any error is detected, replace the FRU indicated.  Rerun the test to verify that no more errors exist.

  FRU Removals and Replacements

This section contains information about removals and replacements.

• The system board is sensitive to, and can

be damaged by,   electrostatic discharge. Establish personal grounding
 by touching a ground point with one hand before touching these units.

An electrostatic   discharge (ESD) strap must be used to establish
 personal grounding.- Do not damage any part. Only certified trained personnel  should service the computer.- The arrows in the 'Removals and Replacements' section show  the direction of movement to remove a FRU, or to turn a screw to release  the FRU. The arrows are marked in numeric order, in square callouts, to  show the correct sequence of removal.- When other FRUs must be removed before removing the failing FRU,  they are listed at the top of the page.- To replace a FRU, reverse the removal procedure and follow any  notes that pertain to replacement. See Locations for internal  cable connections and arrangement information.- When replacing a FRU, use the correct screw size as shown in the  procedures.

  Before the computer is powered-on after FRU replacement, make sure all screws, springs, or other small parts, are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical short circuits.

  pleaseREAD**** - see

ThinkPad Common Parts List

Common Parts Listing

This section contains FRUs common to most IBM portable, laptop, and notebook computers.

External Diskette Drives

CD-ROM Drives

SCSI Adapters, Terminators, Cables

Rewritable Optical Drives

External Keyboard/Mouse

Enhanced Keyboards (101/102 Key)

Optional Enhanced Keyboards (101/102 Key)

Keybutton Kits (101/102 Key)

Japanese Keyboard Type 2 (106 Key, DBCS Support)

Space-Saving Keyboards (84/85 Key)

Tools and Miscellaneous

 Safety Notice 1

Before the computer is powered-on after FRU replacement, make sure all screws, springs, or other small parts are in place and are not left loose inside the computer. Verify this by shaking the computer and listening for rattling sounds. Metallic parts or metal flakes can cause electrical shorts.

Avant de remettre l'ordinateur sous tension après remplacement d'une unité en clientèle, vérifiez que tous les ressorts, vis et autres pièces sont bien en place et bien fixées. Pour ce faire, secouez l'unité et assurez-vous qu'aucun bruit suspect ne se produit. Des pièces métalliques ou des copeaux de métal pourraient causer un court-circuit.

Bevor nach einem FRU-Austausch der Computer wieder angeschlossen wird, muß sichergestellt werden, daß keine Schrauben, Federn oder andere Kleinteile fehlen oder im Gehäuse vergessen wurden. Der Computer muß geschüttelt und auf Klappergeräusche geprüft werden. Metallteile oder -splitter können Kurzschlüsse erzeugen.

Prima di accendere l'elaboratore dopo che é stata effettuata la sostituzione di una FRU, accertarsi che tutte le viti, le molle e tutte le altri parti di piccole dimensioni siano nella corretta posizione e non siano sparse all'interno dell'elaboratore. Verificare ci• scuotendo l'elaboratore e prestando attenzione ad eventuali rumori, eventuali parti o pezzetti metallici possono provocare cortocircuiti pericolosi.

Antes de encender el sistema despues de sustituir una FRU, compruebe que todos los tornillos, muelles y demás piezas pequeñas se encuentran en su sitio y no se encuentran sueltas dentro del sistema. Compruébelo agitando el sistema y escuchando los posibles ruidos que provocarían. Las piezas metálicas pueden causar cortocircuitos eléctricos.

 Safety Notice 3

The battery pack contains small amounts of nickel. Do not disassemble it, throw it into fire or water, or short-circuit it. Dispose of the battery pack as required by local ordinances or regulations. Use only the battery in the appropriate parts listing when replacing the battery pack. Use of an incorrect battery can result in ignition or explosion of the battery.

La batterie contient du nickel. Ne la démontez pas, ne l'exposez ni au feu ni à l'eau. Ne la mettez pas en court-circuit. Pour la mettre au rebut, conformez-vous à la réglementation en vigueur. Lorsque vous remplacez la batterie, veillez à n'utiliser que les modèles cités dans la liste de pièces détachées adéquate. En effet, une batterie inappropriée risque de prendre feu ou d'exploser.

Akkus enthalten geringe Mengen von Nickel. Sie dürfen nicht zerlegt, wiederaufgeladen, kurzgeschlossen, oder Feuer oder Wasser ausgesetzt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

La batteria contiene piccole quantità di nichel. Non smontarla, gettarla nel fuoco o nell'acqua né cortocircuitarla. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). Quando si sostituisce la batteria, utilizzare soltanto i tipi inseriti nell'appropriato Catalogo parti. L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.

Las baterías contienen pequeñas cantidades de níquel. No las desmonte, ni recargue, ni las eche al fuego o al agua ni las cortocircuite. Deséchelas tal como dispone la normativa local. Utilice sólo baterías que se encuentren en la lista de piezas al sustituir la batería. La utilización de una batería no apropiada puede provocar la ignición o explosión de la misma.

 Safety Notice 8

Before removing any FRU, power-off the computer, unplug all power cords from electrical outlets, remove the battery pack, then disconnect any interconnecting cables.

Avant de retirer une unité remplaçable en clientèle, mettez le système hors tension, débranchez tous les cordons d'alimentation des socles de prise de courant, retirez la batterie et déconnectez tous les cordons d'interface.

Die Stromzufuhr muß abgeschaltet, alle Stromkabel aus der Steckdose gezogen, der Akku entfernt und alle Verbindungskabel abgenommen sein, bevor eine FRU entfernt wird.

Prima di rimuovere qualsiasi FRU, spegnere il sistema, scollegare dalle prese elettriche tutti i cavi di alimentazione, rimuovere la batteria e poi scollegare i cavi di interconnessione.

Antes de quitar una FRU, apague el sistema, desenchufe todos los cables de las tomas de corriente eléctrica, quite la batería y, a continuación, desconecte cualquier cable de conexión entre dispositivos.

 Safety Notice 4

The lithium battery can cause a fire, explosion, or severe burn. Do not recharge it, remove its polarized connector, disassemble it, heat it above 100°C (212°F), incinerate it, or expose its cell contents to water. Dispose of the battery as required by local ordinances or regulations. Use only the battery in the appropriate parts listing. Use of an incorrect battery can result in ignition or explosion of the battery.

La pile de sauvegarde contient du lithium. Elle présente des risques d'incendie, d'explosion ou de brûlures graves. Ne la rechargez pas, ne retirez pas son connecteur polarisé et ne la démontez pas. Ne l'exposez pas à une temperature supérieure à 100°C, ne la faites pas brûler et n'en exposez pas le contenu à l'eau. Mettez la pile au rebut conformément à la réglementation en vigueur. Une pile inappropriée risque de prendre feu ou d'exploser.

Die Systembatterie ist eine Lithiumbatterie. Sie kann sich entzünden, explodieren oder schwere Verbrennungen hervorrufen. Batterien dieses Typs dürfen nicht aufgeladen, zerlegt, über 100 C erhitzt oder verbrannt werden. Auch darf ihr Inhalt nicht mit Wasser in Verbindung gebracht oder der zur richtigen Polung angebrachte Verbindungsstecker entfernt werden. Bei der Entsorgung die örtlichen Bestimmungen für Sondermüll beachten. Beim Ersetzen der Batterie nur Batterien des Typs verwenden, der in der Ersatzteilliste aufgeführt ist. Der Einsatz falscher Batterien kann zu Entzündung oder Explosion führen.

La batteria di supporto e una batteria al litio e puo incendiarsi, esplodere o procurare gravi ustioni. Evitare di ricaricarla, smontarne il connettore polarizzato, smontarla, riscaldarla ad una temperatura superiore ai 100 gradi centigradi, incendiarla o gettarla in acqua. Smaltirla secondo la normativa in vigore (DPR 915/82, successive disposizioni e disposizioni locali). L'impiego di una batteria non adatta potrebbe determinare l'incendio o l'esplosione della batteria stessa.

La bateria de repuesto es una bateria de litio y puede provocar incendios, explosiones o quemaduras graves. No la recargue, ni quite el conector polarizado, ni la desmonte, ni caliente por encima de los 100°C (212°F), ni la incinere ni exponga el contenido de sus celdas al agua. Deséchela tal como dispone la normativa local.

To verify the symptom of the problem:

1. Remove the port replicator (if attached), reconnect the  AC Adapter, and replace the battery pack in the computer.

If the computer power problem remains, do the following:

• Remove the battery pack, external diskette drive,  and hard disk drive.
• Connect the AC Adapter and check that power is supplied.
• Connect one at a time, the external  diskette drive, and hard disk drive  and check that power is supplied from  each power source.
• Disconnect the AC Adapter, remove the hard disk and  diskette drive, and install the charged battery pack;  then check that power is supplied by battery pack.
• Remove the memory card and PCMCIA cards and check the power supply.  Reinstall one at a time and check the power supply.
• Disconnect the AC Adapter.  Remove the CD-ROM and Audio Card. Reinstall one at a time, connect  the AC Adapter and check that power is supplied.

If you suspect a power problem, see the appropriate power supply check listed below.

Five power management modes are provided by the computer to save power consumption and prolong battery power.

Standby Mode

When in standby mode the following occurs:

• The LCD backlight turns off.
• The hard disk motor stops.
• The CPU clock is set to the lowest speed.

Events that cause entering of standby mode:

• Standby requested by the Fn key (Fn+F3) .
• No activity under auto-standby enabled by the feature  utility.

Events that cause exiting or resuming of standby mode:

• (Resume) Any key operation.- Ring wakeup if enabled.

  Suspend Mode

  When in suspend mode, the following, in addition to the four  actions of standby mode, occur:

  • The Audio is powered-off
  • The CD-ROM is powered off.
  • The LCD power is powered-off.
  • The hard disk is powered-off.
  • The CPU is stopped.

When the computer is powered with AC power and is used with one of the following IBM PC cards, the computer does not enter suspend or hibernate mode by either the LCD suspend switch or power-management timeout; the PC card and application program remain active.

• 3270 Emulation Credit Card Adapter
• 5250 Emulation Credit Card Adapter
• Token-Ring 16/4 Credit Card Adapter
• Credit Card Adapter for Ethernet
• IBM Modem

In the following condition, the computer cannot enter the suspend mode.

• While the communication link is running.
• Active interrupts (CD-ROM activity, etc.)

Events that cause entering of suspend mode:

• Suspend mode is requested by the Fn key ( Fn+F4 ).
• The LCD is closed.
• The specified time has elapsed from the last operation with  the keyboard, mouse, hard disk drive, parallel connector,  diskette drive, or the AC Adapter is plugged in.  The time is specified by Suspend Timer in the setup program (if enabled).
• If the battery condition is low the system enters the Safe Suspend  mode and the configuration/setup information is saved. If the battery gets  to critical the battery power indicator  blinks (amber) and the system goes into the Hibernation mode.

Events that cause exiting or resuming of suspend mode:

• (Resume) The LCD is opened.
• (Resume) Real time clock alarm signaled.
• (Resume) Ring indicator  (RI) signaled by serial or PCMCIA device.
• (Resume) Any keyboard key is pressed.
• (Exit) Timer conditions are satisfied  to enter hibernation mode.

Hibernation Mode

When in hibernation mode, the following occurs:

• The system status, RAM, VRAM, and setup  data are stored on the hard disk.
• The system is powered-off.

When the computer is powered with AC power and is used with one of the following IBM PC cards, the computer does not enter suspend or hibernate mode by either the LCD suspend switch or power-management timeout; the PC card and application program remain active.

• PCMCIA Data/FAX Modem
• High Speed PCMCIA Data/FAX Modem
• 3270 Emulation Credit Card Adapter
• 5250 Emulation Credit Card Adapter
• Token-Ring 16/4 Credit Card Adapter
• Credit Card Adapter for Ethernet

Events that cause entering of hibernation mode:

• The hibernation mode is requested by the Fn  key ( Fn+F12 ).
• Timer conditions are satisfied in suspend mode.
• Critical low battery condition. The system first goes into  safe suspend mode, then when the battery reaches critical the  system goes into the hibernation mode.

Event that causes exiting of hibernation mode.

• The power-on switch is operated.

When power is turned on, the hibernation history of the boot record on the hard disk is recognized and system status is restored from the hard disk to resume operation.

Doze Mode

In the Doze mode, the system slows down the central processing unit and the system uses less power. Enable the doze mode in the setup program. Exiting the doze mode is instantaneous by pressing any keyboard key.

Safe Suspend

Saves the computer state, then enters the suspend mode.

You are here because the computer fails only when the AC Adapter is used.

• If the power problem occurs only when the port replicator is used,  replace the replicator.
• If the power-on indicator does not turn on, check the power  cord of the AC Adapter for correct continuity and installation.
• If the operational charge does not work, go to Checking Operational Charging

Use the following procedure to check the adapter.

1. Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

• If the voltage is correct:

  • Replace the DC/DC Card.
  • If the problem remains, replace the system board.

  If the  problem still is not corrected, go to 'Undetermined Problems'- If the voltage is not correct, go to the next step.

• Unplug the AC Adapter cable from the ac power outlet and wait  five minutes or longer to allow the over voltage protection circuit  to be fully discharged and initialized.
• Plug the AC Adapter cable into the ac power outlet.
• Measure the output voltage of the AC Adapter.
• If the voltage is still not correct, replace the AC Adapter.

NOTE: An audible noise from the AC Adapter does not always indicate a defective adapter.

Battery charging will not start until the Fuel-Gauge shows that less than 90% of the total power remains; with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being over-charged or having a shortened life.

Before you perform the following procedure, be sure you have the correct battery pack for this model.

1. Power-off the computer.- Remove the battery pack and measure the voltage between battery  terminals 2 (+) and 6 (-).  See the following figure.

    
   - If the voltage is less than +7.2 Vdc, the battery pack has  been discharged or is defective.  Recharge the battery.  If the recharging does not work,  go to Step 5 to check the charging circuit.

   If the voltage is still less than +7.2 Vdc after the recharging,  replace the battery.

   • If the voltage is more than +7.2 Vdc,  measure the resistance between  battery terminals 4 and 6.  The resistance must be 4K ohms to 30K ohms. If the resistance is not correct, replace the battery pack. If the resistance is correct, replace the DC/DC card.
   • To check the charging circuit, do the following.  Plug in the AC Adapter with the battery pack removed, then  power-on the computer.
   • Measure the charging voltage between DC/DC terminals  2 (+) and 6 (-).
   • If the voltage is less then +9.0 Vdc, replace the DC/DC card.  If the voltage is more than +9.0 Vdc, the charging circuit is  working correctly, replace the battery pack.

To check operational charging, use a discharged battery pack or a battery pack that shows an amber battery status indicator when it is installed in the computer.

Perform operational charging. If the battery status indicator turns orange and the battery charging indicator turns green within two minutes, replace the AC Adapter.

If power shut downs occur intermittently when using a port replicator, suspect an over-current problem. Some devices use more power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shut down. Isolate this problem by removing one of the devices, and use the computer under the same condition to see whether a power shut down occurs. Do this procedure for all devices, then determine the cause.

• Disconnect the AC Adapter.
• Open the computer.
• Release the keyboard latches and raise the keyboard.
• Be careful the computer does not fall over backwards as you  remove the battery.

Use the ThinkPad Features program or PS2.EXE. to power-on the TV Tuner, then power-on the internal device in the diskette drive compartment.

  If power for the internal device is turned off when the TV Tuner is set up, nothing appears on the LCD display. Turn on power for the TV Tuner again.

• If you are using DOS, do one of the following:

• Power-on the computer and type PS2 from the  command prompt to start the ThinkPad Features program. Select Set Power Features from the ThinkPad Features  menu,then put a check mark at Internal Serial Port (or Diskette Drive Compartment )  under the Power for devices .  If you need help, press F1 to display the help menu.
• Type ps2 modem on from the command prompt,  press the Enter key to set the power ON.

• If you are using OS/2 or  Microsoft Windows, do the following:

  1. Power-on the computer and start the ThinkPad Features program.
  2. Select the Power icon, then move the pointer to Internal Serial Port (or Diskette Drive Compartment )  under the Power for devices and click the button to check mark it.
  3. Press the OK button.

To verify the symptom of the problem, power-on the computer using each of the power sources available as follows.

1. Remove the battery pack and diskette drive
2. Connect the AC Adapter and check that power is supplied.
3. Disconnect the AC Adapter  and install the charged battery pack,  then check that power is supplied by battery pack.

If you suspect a power problem, see the appropriate power supply check listed below.

You are here because the computer fails only when the AC Adapter is used.

• If the power problem occurs only when the port replicator is used,  replace the replicator.
• If the power-on indicator does not turn on, check the power  cord of the AC Adapter for correct continuity and installation.
• If the operational charge does not work, go to 'Checking Operational Charging' .

1. Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

(20 - 10V)

(16 - 10V)

• If the voltage is correct, replace the DC/DC board.
• If the problem is not corrected, replace the system board.
• If the problem is not corrected, go to 'Undetermined Problems' .
• If the voltage is not correct, go to the next step.
• Unplug the AC Adapter cable from the ac power outlet and wait  five minutes or longer to allow the protection circuit  to be fully discharged and initialized.
• Plug the AC Adapter cable into the ac power outlet.
• Measure the output voltage of the AC Adapter.
• If the voltage is still not correct, replace the AC Adapter.

NOTE: An audible noise from the AC Adapter does not always indicate a defective adapter.

To check operational charging, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator does not turn on, remove the battery pack and leave it to return to room temperature. Reinstall the battery pack. If the charge indicator still does not turn on, replace the battery pack.

Battery charging will not start until the Fuel-Gauge shows that less than 95% of the total power remains; with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being over-charged or having a shortened life.

Do the following:

1. Power-off the computer.- Remove the battery pack and measure the voltage between battery  terminals 1 (+) and 4 (-)

    

   Terminal	Voltage (V dc) / Signal
   1	+ 0 to + 13.5
   2	Send
   3	Thermal
   4	Ground (-)
   5	Select

   NOTE: Signal lines, not used in these steps,  are used for communication between the system and the battery.

   • If the voltage is less than + 11.0 Vdc, the battery pack has  been discharged.  Recharge the battery.

   If the voltage is still less than +11.0 Vdc after recharging, replace the battery.

   NOTE: If the voltage of the battery pack is 0 V, it is not defective.  replace the battery.- If the voltage is more than + 11.0 Vdc,  measure the resistance between  battery terminals 3 and 4.  The resistance must be 4 to 30 kilohms.

    If the resistance is not correct, replace the battery pack.
   
     If the resistance is correct, replace the system board.
   

1. Power-off the computer and unplug the AC Adapter  from the computer.
2. Turn the computer upside down
3. Remove the DIMM cover and backup battery (see 'Backup Battery'
4. Measure the voltage of the backup battery.

NOTE: Be careful not to measure the wrong side of the backup battery.

• If the voltage is correct, replace the system board.
• If the voltage is not correct, the backup battery has been  discharged. Replace the backup battery.
• If the backup battery discharges quickly after replacement,  replace the system board.

Power Systems Checkout

To verify the symptom of the problem, power on the computer using each of the following power sources.

1. Remove the battery pack and diskette drive.
2. Connect the AC Adapter and check that power is supplied.
3. Disconnect the AC Adapter, and  install the charged battery pack,  then check that power is supplied by battery pack.

If you suspect a power problem, see the appropriate power supply check listed below.

Backup Battery

  pleaseREAD**** - see

Turn the computer upside down.

NOTE: Make sure you use the correct screw.

Checking the Backup Battery

1. Power off the computer and unplug the AC Adapter from the computer.
2. Turn the computer upside down.
3. Remove the DIMM cover and backup battery (see 'Backup Battery' ).
4. Measure the voltage of the backup battery.

• If the voltage is correct, replace the system board.
• If the voltage is not correct, replace the backup battery.
• If the backup battery discharges quickly after replacement, replace the system board

Checking the Battery Pack

Battery charging will not start until the Fuel-Gauge shows that less than 95% of the total power remains, with this condition the battery pack will charge to 100% of its capacity. This protects the battery pack from being over-charged or having a shortened life.

Do the following:

1. Power-off the computer.- Remove the battery pack and measure the voltage between battery  terminals 1 (+) and 4 (-).  See the following figure.

    
   - If the voltage is less than +11.0 Vdc, the battery pack has  been discharged. Recharge the battery.

   In this case, the battery pack is over-discharged. It takes at least 2 hours  to recharge the battery pack even if the indicator does not turn on.

   If the voltage is still less than +11 Vdc after recharging, replace the battery.

   • If the voltage is more than +11.0 Vdc,  measure the resistance between  battery terminals 3 and 4.  The resistance must be 4K ohms to 30K ohms.

     If the resistance is not correct, replace the battery pack.

     If the resistance is correct, replace the DC/DC card.

     If the problem persists, replace the system board.

Checking the AC Adapter

You are here because the computer fails only when the AC Adapter is used.

• If the power problem occurs only when the port replicator is used,  replace the replicator.
• If the power-on indicator does not turn on, check the power  cord of the AC Adapter for correct continuity and installation.
• If the operational charge does not work, go to Checking Operational Charging
• Unplug the AC Adapter cable from the computer and  measure the output voltage at the plug of the AC Adapter cable.

If the voltage is not within range, replace the AC Adapter.

If the voltage is within range, do the following:

• Replace the DC/DC Card.
• Replace the system board.
• If the problem is not corrected, go to 'Undetermined Problems' .
• If the voltage is not correct, go to the next step.

NOTE: An audible noise from the AC Adapter does not always indicate a defective adapter.

Checking Operational Charging

To check operational charging, use a discharged battery pack or a battery pack that has less than 50% of the total power remaining when installed in the computer.

Perform operational charging. If the battery status indicator does not turn on, remove the battery pack and let it return to room temperature. Reinstall the battery pack. If the charge indicator still does not turn on, replace the battery pack.

If the charge indicator still does not turn on, replace the DC/DC card. Then reinstall the battery pack. If the reinstalled battery pack is not charged, go to 'Checking the Battery Pack'

Backup Battery

  pleaseREAD**** - see

Turn the computer upside down.

To replace the battery,connect the battery connector using a small screwdriver, then insert it into the computer.

+----+----+-------+
 |Step|Qty |Torque |  Screw No.
 +----+----+-------+

1    1    4kgcm    
 -------------------

NOTE: Make sure you use the correct screw, and tighten it firmly to the torque shown in the table if you have a torque screwdriver.

Never use a screw that you removed.Use a new one. Make sure the screw is tightened firmly.

(see Screw Tightening Information if you do not have a torque screwdriver.)

Disconnect the external keyboard and mouse, then try the internal keyboard. If the internal keyboard works correctly, replace the external keyboard or mouse.

If the internal keyboard does not work correctly or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the keyboard card.

If the keyboard cables are seated correctly, run the Keyboard Test using the IBM ThinkPad 365 Advanced Diagnostics Diskette.

  To use the IBM ThinkPad 365 Advanced Diagnostics Diskette, you must have at least 500KB of free memory. Be sure to read the README.PO file on the IBM ThinkPad 365 Advanced Diagnostics Diskette before using the following instructions.

1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to the  Main Menu. Allow two to four minutes for the diagnostic programs to load.
5. At the Main Menu, select Diagnostics .
6. At the Diagnostics Menu, select Module Tests .
7. At the Module Tests Menu, select Keyboard .
8. Press Enter to run the keyboard tests.
9. Do not press any key until prompted, then follow the instructions  on the screen.
10. When the tests are completed, press Esc twice to return  to the main menu.
11. Select Exit .

If the tests detect a keyboard problem, do the following one at a time to correct the problem. Do not replace a non-defective FRU.

• Reseat the three cables.
• Replace the keyboard.
• Replace the keyboard card.
• Replace the system board.

The following auxiliary input devices are supported for this computer.

• Space-saver keyboard
• Mouse (PS/2 compatible)

If any of the above devices do not work, reseat the cable connector and repeat the failing operation. If the problem does not occur again, recheck the connector. If the problem remains, replace the device, and then the system board.

The TrackPoint automatically compensates to adjust the pointer sensor. During this process, the pointer moves on the screen automatically for a short time. This self-acting pointer movement can occur when a slight, steady pressure is applied to the TrackPoint pointer while the computer is powered on or while the system is running, or re-adjustment is required because the temperature has exceeded its normal temperature range. This symptom does not indicate a hardware problem.

No service actions are necessary if the pointer movement stops in a short period of time.

If either the pointing stick or the click button will not work, do the following actions one at a time to correct the problem. Do not replace a non-defective FRU.

• Reseat the three keyboard cables.
• Replace the keyboard.
• Replace the keyboard card.
• Replace the system board.

Do the following to run the audio tests.

• Go to a DOS full screen, press Ctrl+Alt+F11  to access the setup utility.

NOTE:   The setup screen can only be accessed  at a full-screen DOS prompt.

• Use the arrow keys to  select Audio , then use the space bar to toggle the  audio selection to enabled ( IRQ 7 ).
• Set the volume control to mid range.
• Press Esc then F4 to save and reboot.
• Listen for the sounds.

If the audio card does not produces any sound during reboot, replace the Audio card. If the problem remains, replace the system board.

  The ThinkPad 365 does not support both an internal and external drive simultaneously.

Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write enabled, non-defective 2HD diskette is required. Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or can cause the drive to fail.

Use the following information to test the diskette drive.

  To use the IBM ThinkPad 365 Advanced Diagnostics Diskette, you must have at least 500KB of free memory. Be sure to read the README.PO file on the IBM ThinkPad 365 Advanced Diagnostics Diskette before using the following instructions.

1. Power-off the computer.
2. Insert the IBM ThinkPad 365 Advanced Diagnostics Diskette into drive A.
3. Power-on the computer.
4. Follow the instructions on the screen and proceed to the  Main Menu. Allow two to four minutes for the diagnostic  programs to load.
5. At the Main Menu, select Diagnostics .
6. At the Diagnostics Menu, select Module Tests .
7. At the Module Tests Menu, select Floppy Disks .
8. Press Enter to run the Floppy Disks tests.
9. Do not press any key until prompted, then follow the instructions  on the screen.
10. When the tests are completed, press Esc twice to return  to the main menu.
11. Select Exit .

If the drive is attached through a Port Replicator and the test detects errors, move the drive to the computer's diskette drive connector directly, and test it again.

• If an error occurs replace the diskette drive.
• If no errors occur, the drive is not defective.  Go to 'Port Replicator Checkout' to isolate the replicator problem.

If the drive is attached through a Diskette Drive Attachment Unit, replace the unit.

The following are the audio input sources:

• Line In
• Mic In
• System board
• CD-ROM
• Audio card

NOTE: Use either a data or music CD to check the audio function. If the audio fails see 'Audio Card Checkout'

The green LED on the PC test card turns on when the PCMCIA test is running. If the LED does not turn on, check that the card is installed correctly by reseating the card. If it still does not turn on after it is reseated, try using another slot for the test. If the LED still does not turn on and the test fails, replace the FRU shown in the diagnostic error code.

The following table shows the external keyboard combinations used with the IBM ThinkPad Space Saver Keyboard.

  To avoid possible conflicts with certain software applications, you might need to disable these hot-key combinations. The Ctrl+Alt+Right-Shift-Key toggles the hot-keys On and Off for the external keyboard.

Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the bottom of the computer.

1. Power-off the computer.- Remove the failing devices from the replicator.- Unplug the AC adapter from the replicator, if attached.- Remove the port replicator from the computer.- Reconnect the failing device directly to the computer.  (If another device occupies the connector, remove it first.)- Go to 'Checkout Guide' and follow that procedure.- If the advanced diagnostic device test does not find an error,  suspect a problem with the port replicator  or the system expansion bus.- Power-off the computer and reconnect the port replicator.- Power-on the computer and run the following advanced diagnostic tests:

              - Serial port test with the wrap plug installed on the replicator.- Parallel port test with the wrap plug installed on the replicator.- FDD-2 (FDD-1 if no drive is installed in the computer)
                     drive test on the failing device.
   
              - If diagnostic errors appear, replace the replicator or diskette
                 drive attachment unit.
   
                 If the problem remains after the replacement, replace the
                 system board.
   
                - If power problems appear only when using the replicator, replace the
                   replicator.
   

  During removal and replacement procedures, pay special attention to the LCD Suspend Switch 2. Be sure the LCD Suspend Switch actuator is properly aligned with the hole in the cover.

1. Remove the plastic upper cover as shown.
2. Lift the keyboard and locate the cables as shown.

  The keyboard cables are fragile and can be damaged.

Do not pull on the keyboard cables. Pull on the connectors only.

• When replacing the keyboard, check that the three cables are clean,  and inserted straight and fully into the connectors.- Test all keyboard keys before returning the computer to the customer.- When replacing the top cover:

  • Be sure the tabs on the back of the  top cover are seated in the bottom of the LCD display
  • Be sure the LCD Suspend Switch actuator is properly aligned with the  hole in the cover.

  During replacement, make sure that all connectors are properly aligned and seated.

NOTE: Screws shown above are 6 mm long.

1. Disconnect all attached cable connectors.
2. Release the locking tab at the right rear of the keyboard card.
3. Remove the keyboard card.

Use the following procedure to isolate the diskette problem to a controller, drive or diskette. A scratch, write-enabled 2HD diskette is required.

1. Select the icon FDD on the TEST MENU . By  doing this, the controller test and the drive  read/write test run.  If the controller test detects an error, FRU code 10 appears.  In this case, replace the system board.
2. If the controller test run without errors,  follow the instructions on the screen and insert a scratch  diskette.
3. If the drive test detects an error, FRU code 50 appears.  If the diskette media are known to be good, replace the drive or the  drive cable.

If the display problem occurs only when using an external display, use the following instructions to correct the problem.

Note: Before you replace a display, check the following list to see if it is connected correctly.

• 8506 and 8508 displays must be connected to an Image Adapter/A or an  Image-I Adapter/A.
• 63XX and 85XX systems support either 63XX or 85XX displays.
• 85XX systems with an XGA-2 adapter support 95XX displays.
• 95XX systems support either 63XX, 85XX, or 95XX displays.
• ThinkPad models support either 85XX or 95XX displays.

If the screen is rolling, replace the display assembly. If that does not correct the problem, replace FRUs in the following order until the problem goes away:

1. Video card
2. Display adapter (any type)
3. System board
4. Bus adapter (if used)

If the screen is not rolling, run the display self-test as follows:

1. Power-off the computer and display.
2. Disconnect the display signal cable.
3. Power-on the display.
4. Set the contrast to its maximum position.
5. Set the brightness control to the center detent position.

Check for the following conditions:

• You should be able to vary the screen intensity by adjusting the contrast  and brightness controls.
• The screen should be white or light gray,  with a black margin (test margin) on the screen. NOTE: The location of the test margin varies with the type of display. The  test margin might be on the top, bottom, or one or both sides.

If you do not see a test margin on the screen, replace the display. If there is a test margin on the screen, replace the system board.

On ThinkPad Models 700, 700C, 720C, 720C, do the following:

1. Video card
2. System board

The following auxiliary input devices may be available for IBM ThinkPad models.

• Numeric keypad
• Mouse (PS/2 compatible)
• External keyboard (with Keyboard/Miniature Mouse cable)

• If you suspect a problem with any of the auxiliary input devices  (listed above), replace the device.

If the problem is not corrected, replace the following FRUs one  at a time to correct the problem.

• Keyboard control card
• System board

• If the computer receives an incorrect keyboard response,  remove other external devices, check the keyboard connections, and recheck  the keyboard responses. If the problem remains, replace the following FRUs  one at a time to correct the problem.

  • Keyboard
  • Keyboard control card
  • System board

  • If a 00030100 error message appears,  power-off the computer and the external devices.  Then power-on the computer before you power-on the external devices.

1. Make sure the printer is correctly connected and is powered-on.
2. Run the printer self-test.

If the printer self-test does not run correctly, the problem is in the printer. Refer to the printer service manual.

If the printer self-test runs correctly, do the following.

1. Verify the port settings in configuration.
2. Install a wrap plug on the port (indicated in configuration)  and run the advanced diagnostic tests.
3. If the advanced diagnostic tests (with the wrap plug installed)  do not detect a failure, replace the printer cable. If the problem is not corrected, replace the system board.

Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the rear of the computer.

1. Power-off the computer.- Remove the failing devices from the replicator.- Unplug the AC adapter from the replicator, if attached.- Remove the port replicator from the computer.- Reconnect the failing device directly to the computer.  (If another device occupies the connector, remove it first.)- Go to General Checkout and follow that procedure.- If the advanced diagnostic device test does not find an error,  suspect a problem with the port replicator  or the system expansion bus.- Power-off the computer and reconnect the port replicator.- Power-on the computer and run the following advanced diagnostic tests:

              - Serial port test with the wrap plug installed on the replicator.- Parallel port test with the wrap plug installed on the replicator.- PCMCIA-2 test with the PC test card installed.- FDD-2 (FDD-1 if no drive is installed in the computer)
                       drive test on the failing device.
   
              - If diagnostic errors appear, replace the replicator or diskette
                 drive attachment unit.
   
                 If the problem remains after the replacement, replace the
                 system board.
   
                - If power problems appear only when using the replicator, replace the
                   replicator.
   

If power shut downs occur intermittently when using PCMCIA-2 devices via a port replicator, suspect an over-current problem. Some PCMCIA devices use more power; if the maximum usage of each device occurs simultaneously, the total current will exceed the limit, thereby causing a power shut down. Isolate this problem by removing one of the devices, and use the computer under the same condition, and see whether a power shut down occurs. Do this procedure for all devices then determine the cause.

Customer purchase of the larger AC adapter (50W, optional) is recommended, if it is not yet in use.

• If the TrackPoint II  does not work, check the configuration.  If the configuration of the TrackPoint II is set to Disabled or Off, change it to Enable or On.

If the problem remains, continue.

NOTE: TrackPoint II automatically compensates to adjust  the pointer sensor. This causes the pointer to move slightly on  the screen and then stop. Pointer  movement might occur when  a slight, steady pressure is applied to the TrackPoint II pointer when  the computer is powered-on or running, or  when exceeded temperature range requires re-adjustment.

• If the cursor floats or moves erratically, power-off and disconnect the  mouse. Power-on the computer. If the  problem goes away, replace the mouse. If the problem remains, replace the  keyboard.- For click button or pointing stick problems:

  1. Go to the Easy-Setup screen.
  2. Select an item with the pointing stick.
  3. Press either left or right click button.
  4. Verify that both buttons work correctly.

  If the pointing stick or the click button does not work,  do the following.

  1. Reseat the keyboard cables.
  2. Replace the keyboard.
  3. Replace the interposer card (355x, 360x, 750x, 755x).
  4. Replace keyboard control card (720).
  5. Replace the system board.

The TV Tuner Pack (hereafter called TV Tuner) is an option for watching TV programs or videos on the IBM TFT color notebook computer. The computer changes to TV reception when the removable diskette drive is replaced with the TV Tuner.

The TV screen and normal computer display are easily switched by using the Hot key on the front panel of the TV Tuner.

Identifying Names and Functions

The following figure and table show the names and functions of each part of the TV Tuner.

Connects the headphones.

Powered on and off the TV Tuner.

Switches between the TV screen and computer screen.

Increases the value such as the channel number.

Decreases the value such as the channel number.

Enters the mode to change the value of each function,

Switches the TV mode or external video mode.

Controls the speaker volume.

Connects the audio-in connector of the AV cable.

Connects video-in connector of the AV cable.

   Connects the active antenna unit or antenna cable.
 --------------------------------------------------------------

Using the Front Panel

The following table shows how to operate all functions of the TV Tuner with the controls on the front panel.

Key            Function
 Power

   Turns on the TV Tuner.
        This key is used only when the computer is turned on.
 Hot Key

   Switches computer display and TV screen.
Up

   Increases the value of parameters, Channel Number,
        Color, Tint, Brightness, Contrast, Auto Tuning Sensitivity,
        On-screen Message Selection.
 Down

   Decreases the value of parameters, Channel Number
        Color, Tint, Brightness, Contrast, Auto Tuning Sensitivity,
        On-screen Message Selection.
 Function

   Selects a function mode to adjust each function parameter.
        (See Using the Function Key)
 TV/Ext

   Switches the displayed video source between
        the receiving TV broadcast program and external devices such as
        VCR, video camera recorder, laser disk, and so on.

Remove the external keyboard if the internal keyboard is to be tested.

If the internal keyboard does not work or an unexpected character appears, make sure that the three flexible cables extending from the keyboard are correctly seated in the connectors on the system board.

If the keyboard cable connection is correct, run the Keyboard Test by doing the following:

1. Go to advanced diagnostic menu screen  by pressing Ctrl+A in the Easy Setup screen.
2. Press Ctrl+K , a layout of the keyboard  appears on the screen.
3. Check that when each key is pressed, the key's position  on the keyboard layout on the screen changes to a black square. NOTE: When a Fn key is pressed, a black square briefly appears.

If the tests detect a keyboard problem, do the following one at a time to correct the problem.

Do not replace a non-defective FRU.

• Reseat the keyboard card cable.
• Replace the keyboard card cable.
• Replace the keyboard card assembly.
• Replace the video card.
• Replace the system board.

The following auxiliary input devices are supported for this computer.

• Numeric keypad
• Mouse (PS/2 compatible)
• External keyboard (with keyboard/mouse cable)

If any of the above devices do not work, reseat the cable connector and repeat the failing operation.

If the problem does not occur again, recheck the connector.

If the problem is not corrected, replace the device, and then the system board.

Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write enabled, non-defective 2HD diskette is required.

FDD-1 represents external diskette drive attached through the external diskette drive connector. FDD-2 represents the port replicator.

  Make sure that the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or can cause the drive to fail.

1. Do following to select the test device:

2. Select the advanced diagnostic mode and  select Tool, then  select the FDD-1 or FDD-2 icon  and press the spacebar.  A OK mark appears next to the selected icon.  Insert the blank diskette when instructed.

• Run the diskette drive test.
• If the controller test detects an error, FRU code 10 appears.  Replace the system board.
• If the controller test runs without errors,  the drive read/write tests start automatically.
• If the drive test detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears.  If the diskette itself is known to be good, replace the drive.
• If FDD-2 test detects an error, move the drive to the computer's diskette drive connector  directly, if possible, and test it again as FDD-1.

If no errors occur in the FDD-1 position, the drive is not defective. Go to ''Port Replicator Checkout'' to isolate the problem.

Port Replicator Checkout

Use the following procedure to isolate a port replicator problem. A port replicator attaches to the system expansion connector at the bottom of the computer.

1. Power-off the computer.- Remove the failing devices from the port replicator.- Unplug the AC adapter from the replicator, if attached.- Remove the port replicator from the computer.- Reconnect the failing device directly to the computer.  (If another device occupies the connector, remove it first.)- Go to 'Running the Diagnostics' and follow run the diagnostics.- If the advanced diagnostic device test does not find an error,  suspect a problem with the port replicator  or the system expansion bus.- Power-off the computer and reconnect the port replicator.- Power-on the computer and run the following advanced diagnostic tests:

              - Serial port test with the wrap plug (P/N 72X8546) installed on the port replicator.- Universal Serial Bus test with test cable (P/N 05K2580) see ['Universal Serial Bus (USB) Test'](#universal-serial-bus-usb-test).- Parallel port test with the wrap plug (P/N 72X8546) installed on the replicator.- PC Card (PCMCIA) test with the PC test card (P/N 35G4703) installed.- FDD-2 device test on the failing device with a scratch diskette.
              - If diagnostic errors appear, replace the port replicator or diskette
                 drive.
   
                 If the problem remains after the replacement, replace the
                 system board.
   
                - If power problems appear only when using the replicator, replace the
                   replicator.
   

If power shutdown occurs intermittently when using PC Card devices via port replicator, suspect an over-current problem. Some PC Card devices use more power, if the maximum usage of each device occurs simultaneously the total current will exceed the limit, thereby causing a power shutdown. Isolate this problem by removing one of the devices, and use the computer under the same condition, and see whether a power shutdown occurs. Do this procedure for all devices to determine the cause.

Keyboard or Auxiliary Input Device Checkout

Remove the external keyboard if the internal keyboard is to be tested.

If the internal keyboard does not work or an unexpected character appears, make sure that the flexible cable extending from the keyboard is correctly seated in the connector on the system board.

If the keyboard cable connection is correct, run the Keyboard Test. See 'Running the Diagnostics' for details.

NOTE: When a Fn key is pressed, a black square briefly appears.

If the tests detect a keyboard problem, do the following one at a time to correct the problem.

Do not replace a non-defective FRU.

• Reseat the keyboard card cable.
• Replace the keyboard
• Replace the system board.

The following auxiliary input devices are supported for this computer.

• Numeric keypad
• Mouse (PS/2 compatible)
• External keyboard (with keyboard/mouse cable)

If any of these devices do not work, reseat the cable connector and repeat the failing operation.

If the problem does not recur, recheck the connector.

If the problem is not corrected, replace the device, and then the system board.

Diskette Drive Checkout

Do the following to isolate the problem to a controller, drive, or diskette. A scratch, write enabled, nondefective 2HD diskette is required.

FDD-1 represents an external diskette drive attached through the external diskette drive connector. FDD-2 represents the external diskette drive attached to the port replicator.

  Make sure the diskette does not have more than one label attached to it. Multiple labels can cause damage to the drive or cause the drive to fail.

Do the following to select the test device. See 'Running the Diagnostics' for details.

1. Go to the advanced diagnostic mode by pressing Ctrl+A from the test menu of the  Easy-Setup.- Click on Exit twice.- Click on FDD-1 or FDD-2 to start the test.- Insert the blank diskette when instructed and follow the instructions  on the screen.- If the controller test detects an error, FRU code 10 appears. Replace the system board.- If the controller test runs without errors, the drive read/write tests start automatically. If a drive  test detects an error, FRU code 50 for FDD-1 or 51 for FDD-2 appears. If the diskette itself  is known to be good, replace the drive.- If the FDD-2 test detects an error, move the drive to the computer's diskette drive connector directly, if  possible, and test it again as FDD-1.

           If no errors occur in the FDD-1 position, the drive is not defective. Go to ['Port Replicator Checkout'](#port-replicator-checkout-3) to isolate
           the port replicator problem.
   

Error Log

Diagnostic errors are printed on a printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory.

Use the following procedure to display the errors.

1. Enter the advanced diagnostic test.
2. Press Ctrl+E .
3. The error log appears.
4. To exit the screen, select the cancel icon or press Esc .

The error log is not saved when system power is turned-off.

Before servicing the computer, determine whether or not the damage applies to the warranty by referring to the following:

  During the warranty period, the customer may be responsible for repair costs if the damage was caused by misuse, accident, modification, unsuitable physical or operating environment, or improper maintenance by the customer.

The following list provides some common items that are not covered under warranty and some symptoms that could indicate that the system was subjected to stresses beyond normal use.

Warranty Coverage Notes

The following is not covered under warranty:

• LCD panel cracked from being dropped or applying too much force.
• Scratched (cosmetic) parts.
• Cracked or broken plastic parts, broken  latches, broken pins  or connectors caused by excessive force.
• Damage caused by liquid spilled onto the system.
• Damage caused by improperly inserting a PCMCIA card or installation  of an incompatible card.
• Damage due to foreign material in the FDD or FDD bay.
• Damage to the diskette drive caused by pressing the  diskette drive cover or inserting diskettes with multiple labels.
• Diskette eject button was bent or damaged.
• Damage to the CD-ROM drive caused by excessive force shocked or dropped.
• Fuse blown by attaching non-supported devices.
• Computer or hard disk could not be used  because the password was forgotten.

If the following symptoms are present, they could indicate the damage was caused by non-warranted activity:

• Missing parts can be a symptom of unauthorized service or  modification.
• HDD spindles can become noisy if subjected to  excessive force or if dropped.
• Errors  can be caused by exposure to strong magnetic fields.

Memory Checkout

Depending on the model, the memory size that is available for customer use appears differently. See the following table for the available memory size of each card.

NOTE: Refer to 'Memory Board Switch Settings' Switch location.

Memory errors might stop system operations, show error messages on the screen, or hang the system. The computer detects memory parity errors but does not correct them.

Use the following procedure to isolate memory problems.

Memory Error Notes

• Ignore any references to parity errors.
• Remove any installed PCMCIA memory cards.

1. Make sure that any memory options are fully installed  into their connectors. A loose connection can cause an error.
2. Run the diagnostics. See 'How to Run Diagnostics'
3. If memory problems occur intermittently,  use the loop option to repeat the test.
4. FRUs should not be replaced because of a single, un-reproducible  failure. Single failures can occur from a variety of reasons  that have nothing to do with a hardware defect such as  electrostatic discharge or software errors.  FRU replacement should only be considered when  a recurring problems exits.

  The TFT LCD of the notebook computers contain over 921.000 thin film transistors (TFTs). A small number of missing, discolored or lighted dots (on all the time) is characteristic of TFT LCD technology. Excessive pixel problems can cause viewing concerns. The LCD should be replaced if the number of missing or discolored, or lighted dots in any colored background is 21 or more.

NOTE: If you cannot find a symptom or error in this list and the problem remains, see 'Undetermined Problems'

You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs).

Verify that all attached devices are supported by the computers.

Verify that the power supply being used at the time of the failure is operating correctly. (See 'Power Systems Checkout').

1. Power-off the computer.- Check the cables, wires, and connectors for  short circuits and open circuits. Visually check them for damage.  If any problems are found, replace the FRU.- Remove or disconnect all of the following devices.

   1. Non-IBM devices- Devices attached to external connectors- Printer, mouse, and other external devices- Battery pack- Hard disk drive- Diskette drive or the device attached to the diskette drive  connector- DIMM card- CD-ROM- Sound card- Port replicator- Keyboard- Keyboard card

                          **NOTE:**
                            Remember that removing the hard disk drive,
                           or any adapter or device, might cause configuration errors.
                           Ignore error code 174.- Power-on the computer.- Determine if the problem has changed.- If the problem does not occur again,
        reconnect the removed devices one
        at a time until you find the failing FRU.- If the problem remains, replace the following FRUs one at a time.
          Do not replace a non-defective FRU.
      
         - DC/DC card- System board- LCD assembly- Processor card
      

Messages generated by the software-the operating system or application programs-generally are text messages, but they also can be numeric. The following are the various error messages.

• POST beep codes
• POST error messages
• Diagnostic error messages
• Software generated messages
• Multiple messages

The system status indicators show the current computer status in different colors (amber and green).

Symbol            Color           Meaning
 ------------------------------------------------------------------------

 
              Blinking green  Speaker sounds.
 ------------------------------------------------------------------------

 
              Amber           PC card in-use.
 ------------------------------------------------------------------------

 
              Amber           Diskette drive in-use.
 ------------------------------------------------------------------------

 
              Amber           Hard disk drive in-use.
 ------------------------------------------------------------------------

 
              Green           Keys in Num Lock mode.
 ------------------------------------------------------------------------

 
              Green           Keys in Caps Lock mode.
 ------------------------------------------------------------------------

 
              Green           Keys in Scroll Lock mode.
 ------------------------------------------------------------------------

 
              Green           Computer in suspend mode.
 ------------------------------------------------------------------------

 
              Green           Computer powered-on.
 ------------------------------------------------------------------------

See -> I/O Status Indicators

The I/O status indicators on the front panel of the CD-ROM drive or the FDD drive indicate the current status.

Symbol      Color           Meaning
  I/O         Amber           CD-ROM in use
 Status       Green           Disk Drive in use

The diagnostics diskette outline follows:

Main Menu:

• Diagnostics

• Quick Check

  When selected runs the system quick check diagnostics.- Module Tests

  When selected displays a menu of the modules you can select to  test.- Options

  When selected displays a menu of test preferences, log results,
   and save script options.
  

• System info

  • When selected displays a menu with selections for system information
  • Reports
  • When selected displays a list of the reports you can select.- Utilities
    • When selected displays a list of diagnostic utilities.
    • Exit
    • When selected exits diagnostics and returns  you to the system prompt.

As you move the cursor bar up or down in the Module Tests menu, the right hand screen changes to show the attributes, parameters, and the selected tests of the corresponding Test Group. The  mark indicates a module selected for testing.

The indicated attributes are characteristics of the selected test module that are used by the test programs to determine which tests to run or how to run selected tests. Attributes are also used to limit the allowable range of parameters (for example, - ending cylinder).

Parameters are values you select to establish the scope of tests. For example, you can select Extended Memory testing parameters and limit the testing to a specific range of test blocks by specifying the starting and ending memory block. This might be appropriate if prior experience indicates that problems are likely to exist in a specific area of memory. By selecting these limiting parameters, you reduce memory testing time.

If the Quick Check does not find a problem, or you want to perform in-depth testing, the Module Testing mode provides a method to run individual tests on a single module. For example, you can run an individual test for the diskette drive, or you can the test for all selected modules.

To start the Module Tests:

  To use the IBM ThinkPad 365 Advanced Diagnostics Diskette, you must have at least 500KB of free memory. Be sure to read the README.PO file on the IBM ThinkPad 365 Advanced Diagnostics Diskette before using the following instructions.

1. Power-off the computer.- Insert the IBM ThinkPad 365 Advanced Diagnostics Diskette into drive A.- Power-on the computer.- Follow the instructions on the screen and proceed to the  Main Menu. Allow two to four minutes for the diagnostic  programs to load.- At the Main Menu, select Diagnostics.- At the Diagnostics Menu, select Module Tests.- At the Module Tests Menu, select the modules to test.- Use the up and down arrow keys (    and    )  to move the highlight bar from one selection to the next.- Press Enter to run the tests.- Do not press any key until prompted, then follow the instructions  on the screen.- Follow the instructions on the screen.- Select Exit.

To stop running a specific test or stop testing after you have started a test, press Esc while the test is running. The test pauses at the first possible opportunity, and the Skip/Abort Test Menu appears with the following options:

If a device is installed but the icon appears in a gray shade rather than a dark shade on the basic diagnostics screen, the device is defective. Reseat the device connectors. If the symptom remains, replace the device or the system board. If needed, adjust the contrast control to clearly distinguish the shades of the icon.

If a device that is not installed appears in a dark shade, for example, FDD-2 appears in a dark shade when NO second FDD is installed, do the following.

1. Replace the first device, such as a FDD-1, HDD-1, or PCMCIA-1.
2. If the problem remains, replace the system board.

PCMCIA-1, Parallel, and Serial icons are always displayed in dark shade, because the icons represent subsystems of the system board and not attachment of the devices.

The HDD-1, FDD-1, or PCMCIA-1 represents the first drive in the system configuration, respectively. Similarly, the HDD-2, FDD-2, or PCMCIA-2 represents the second drive, usually attached through a port replicator or an expansion unit.

Use the error codes or messages displayed on the screen to diagnose failures. If more than one error code is displayed, begin the diagnosis with the first error code.

The cause of the first error code can result in false error codes being displayed. If no error code is displayed, see if the error symptom is listed in the 'Symptom-to-FRU Index'

Use the following keys to maneuver throughout the test programs:

Additional functions are available in the Module Tests screen and the Test Group screen using the following keys:

The following Command Line Options are available when initially starting the diagnostic program from within its directory.

Type QAPLPRO/XXX (where /XXX represents one of the following from the list below) then press Enter.

NOTE: You can use a - instead of a / as the command line switch.

To run a selected tests for a test group:

1. Use the up and down arrow keys (    and    ) to  move the cursor to your selection.- Press Enter.

NOTE: A  appears next to your selection.

To change selected tests in a Test Group:

1. In the Module Tests Menu,  use the up and down arrow keys  (    and    ) to move the cursor to your selection.- Scroll to the test you want to select or deselect.- Press the spacebar at the highlighted  test to toggle between select (indicated  by a ) and deselect.

   NOTE:

   Pressing the first letter of a test does not activate the test, unlike menu  operation.- Press Enter.

To run an individual test:

1. Use the up and down arrow keys  (    and    ) to move to the highlighted bar to the  test you want to run.- Press Enter to run the test.  :nt.The results of the test appear in the lower-right-hand  Test Log window. Also, if you enabled Test Logging, the results are  recorded in the Test Log.  :ent.- When the test completes, press Esc to return to the Test  Group Menu.

NOTE: Screws shown above are 5 mm long.

Each time you press the Function key  
one of the following messages (called On-Screen Message) appears at the top left corner of the LCD.

The changed values are automatically saved when you return to the TV Channel On-Screen message. The values are not saved when you power-off the TV Tuner without returning to this message.

Message on       Parameter
 LCD
                   TV Channel
  (xx)             By using <- and +>  you can select the channels
                   from 2 to 69.
                   Color Adjustment
   COL             By pressing and holding <- or +>
                   you can change the color.
                   TINT Adjustment
   TNT             By pressing and holding <- or +>
                   you can change the tint.
                   Bright Adjustment
   BRT             By pressing and holding <- or +>
                   you can change the brightness.
                   Contrast Adjustment
   CNT             By pressing and holding <- or +>
                   you can change the contrast.
   ---             (No function)
                    Reserved.
                   Auto Tune Sensitivity Selection
    LO             LO: Means the sensitivity
                   of the TV is low.  In this mode, the TV Tuner receives
                   strong TV signals only.  To set LO,
                   press <-
    HI             HI: Means the sensitivity
                   of the TV is high (factory default).
                   In this mode, the TV Tuner receives weak and strong TV signals.
                   To set HI, press +>
    D3S            Time On-Screen Message appears
                   D3S: On-screen Message appears for 3 seconds.
                   To set D3S, press <-
    DON            DON: On-screen Message always appears.
                   To set DON press +>

The following table shows what to do to solve problems when the TV Tuner does not work correctly.

Problem        Probable Cause
 The TV Tuner        ° Computer is not powered on.
 does not operate.   ° Computer is in suspend mode.
  (No picture        ° Volume control of the TV Tuner or computer
   or sound)           is not adjusted correctly.
                     ° The power for the TV Tuner is not supplied.
                       (See Power-on the TV Tuner)
                     ° The wall outlet from the outdoor antenna is not active.
                     ° The video or antenna cable is not connected correctly.
                     ° Antenna elements of the active antenna unit are not adjusted.
                     ° The batteries in the active antenna unit are not inserted
                       correctly.
                     ° The batteries in the active antenna unit are depleted.
                     ° The TV Tuner is not set up correctly.
                     ° You cannot watch TV or videos on the external display.
                     ° LO is set for the auto tune sensitivity
                       selection.
 No color.           ° The program is not in color.

Snow and noise      ° Switch the TV/EXT (  ) button.
 only.
 Pictures are out    For TV:
 of shape, or have   ° The channel is not tuned correctly.
 double images.      ° Adjust the antenna.
                     For VCR:
                     ° Change the tracking adjustment.
 Dotted lines        ° Usually caused by interference from
 or stripes.           neon signs, hair dryers, and so on.
                       Move the computer to avoid the interference.
 Picture control     ° Do not power-off the TV Tuner
 are not saved.        when adjusting functions such as picture control,
                       color, tint, brightness, or contrast.
 Channel number is   ° Select your favorite mode for the on-screen message.
 always displayed or
 is not displayed.

If a device is installed but the icon appears in a gray shade rather than a dark shade on the basic diagnostics screen, the device is defective. Reseat the device connectors. If the symptom remains, replace the device or the system board. If needed, adjust the contrast control to clearly distinguish the shades of the icon.

If a device that is not installed appears in a dark shade, (for example, FDD-2 appears in a dark shade when NO second FDD is installed), do the following.

1. Replace the first device, such as a FDD, HDD, or PCMCIA.
2. If the problem remains, replace the system board.

The Parallel, and Serial icons are always displayed in dark shade, because the icons represent subsystems of the system board and not attachment of the devices.

The FDD-1 icon represent the first drive in the system configuration for each type of device. For Model 560, FDD-1 represents an external diskette drive attached through the external diskette drive connector. Similary, the FDD-2 icon represent the second drive, usually attached through a port replicator.

NOTE: If you cannot find a symptom or error in this list and the problem remains, see 'Undetermined Problems'

You are here because the diagnostic tests did not identify which adapter or device failed, installed devices are incorrect, a short circuit is suspected, or the system is inoperative. Follow the procedures below to isolate the failing FRU (do not isolate non-defective FRUs).

Verify that all attached devices are supported by the computer.

Verify that the power supply being used at the time of the failure is operating correctly.

• For 2640
• 560 see - > 'Power Systems Checkout'
• For 2640
• 560x
• 60x, 70x - see > 'Power Systems Checkout'

1. Power-off the computer.- Check the cables, wires, and connectors for  short circuits and open circuits. Visually check them for damage.  If any problems are found, replace the FRU.- Remove or disconnect all of the following devices.

   1. Non-IBM devices
   2. Devices attached to the expansion bus connector
   3. Printer, mouse, and other external devices
   4. Battery pack
   5. Hard Disk drive
   6. Diskette drive
   7. DIMM card
   8. PC cards
   • Power-on the computer.
   • Determine if the problem has changed.
   • If the problem does not occur again,  reconnect the removed devices one  at a time until you find the failing FRU.
   • If the problem remains, replace the following FRUs one at a time. Do not replace a non-defective FRU.

• System board
• LCD assembly

DIMM cards are available for increasing memory capacity.

Memory errors might stop system operations, show error messages on the screen, or hang the system.

Use the following procedure to isolate memory problems.

NOTE: Make sure that the DIMM card is fully installed into the connector. A loose connection can cause an error.

1. Power-off the computer and  remove the IC DRAM card from its slot (if installed).
2. Press and hold the F1 key; then power-on the computer.  Hold the F1 key down until the Easy-Setup screen appears.
3. Select Test and press enter.
4. Select Memory and press enter to  run the memory test on base memory. If an error appears, replace the  system board.
5. Power-off the computer and reinstall the DIMM card,  then power-on the computer.  Verify the memory size, then test the memory.  If an error appears, replace the DIMM card.

If memory problems occur intermittently, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port. See 'Error Log' for more information.

Memory Checkout

DIMM cards are available for increasing memory capacity.

Memory errors might stop system operations, show error messages on the screen, or hang the system.

Use the following procedure to isolate memory problems.

NOTE: Make sure that the DIMM card is fully installed into the connector. A loose connection can cause an error.

See 'Running the Diagnostics' for details.

If memory problems occur intermittently, use the loop option to repeat the test. When the test detects an error, an error log is printed on the printer connected to the parallel port. See 'Error Log' for more information.

Diagnostic errors are printed on the printer that is attached to the parallel port when the error is detected. The error is also logged in the system memory.

Do the following to display the errors.

1. End the test, if it is running.
2. Press Ctrl+A to select the advanced diagnostic mode.
3. Press Ctrl+E .
4. The error log appears.
5. To exit the screen, select the cancel icon or press Esc .

The error log is not saved when system power is powered-off.

Universal Serial Bus (USB) Test

At the advanced diagnostic window, connect the USB parallel test cable (P/N 05K2580) to the computer as shown.

Click on the USB-1 icon to run the test. Follow the instructions on the screen. OK appears if the test passed, but three lines of error codes appear if the test failed. The defective FRU is the system board.

Use cable number 2 for an external USB port, such as a port replicator or a docking station.

2640-560x - 60x, 70x - Screw Information

The following types of screws are used in this machine.

Use the correct screw from Screw Kit FRU P/N 12J0808, when replacing any 2640 ThinkPad FRUs.

   Pan   Black     6.5

   Pan   Black    11.5

   Flat  Black     3.5

   Pan   Brass     2.5

   Hex   Silver    7.0

   Pan   Black     2.5

   Flat  Brass     5.5

   Flat  Brass     3.0

   Pan   Black     3.5

  ThinkPad/WorkPad - SCREW KIT FRUs

A new range ofFRU Screw Kits have been released for various Thinkpad/WorkPad Models.These new Screw Kits contain *Nylock screws where the thread of the screws have been coated with Nylon to ensure that the appropriate screw torque is maintained for the life of the product.

• They maintain tight connections.
• They do not easily come loose, even with shock or vibration.
• They need additional force to tighten.
• The should be used only once .

Do the following when you service one of the below listed machines:

• Keep the screw kit in your tool bag.
• Always use new screws .
• Use a torque screwdriver if available. (see below 'Screw Tightening Information')

The following screw FRU part numbers have been made available for servicers.

Bulk, kit, and individual screw FRUs are listed.

Use the appropreate FRU P/N that correspond to your usage of screw FRUs.

Screw Tightening Information

Loose screws can cause reliability problems. The IBM ThinkPad/WorkPad computer addresses this problem with nylon-coated screws.

Tighten screws as follows:

Plastic to Plastic

Turn an additional 90 degrees after the screw head touches the surface of the plastic part.

Logic Card to Plastic

Turn an additional 180 degrees after the screw head touches the surface of the plastic part.

Torque screw-drivers can be ordered from:

Techni-Tool
    5 Apollo Road
    Box 368
    Plymouth Meeting
    PA 19462
    USA
    Phone : Sales  1-610-941-2400
    Fax   :        1-610-828-5623
http://www.techni-tool.com

(IBM Mobile Systems HMM Vol.-3 S82G-1503-03 May 1996 U.K.)

ThinkPad 365C 365CD 365CS 365CSD 365E and 365ED (2625)

Read This First

What to Do First

General Checkout  

  Password Disable

  Flash Memory

  Symptom-to-FRU Index

Related Service Procedures

  Error Messages

  How to Run Diagnostics

  Product Overview (365C 365CD 365CS 365CSD)

Product Overview (365E 365ED)

  FRU Removals and Replacements

  System Board Switch Settings

Memory Board Switch Settings

  Locations

  Parts Listing (365C 365CD 365CS 365CSD)

Parts Listing (365E 365ED)

This hardware maintenance section contains information for the IBM ThinkPad 365 computer.

• Only cerified trained personnel should service the computer .
• Read the entire FRU removal and replacement page before replacing any FRU.
• Use new nylon coated screws when you replace FRUs
• Be extremely careful during write operations  such as copying, saving, or formatting. Drives in the computer that you are servicing  might have been rearranged or the drive startup  sequence might have been altered.  If you select an incorrect drive,  data or programs can be written over.
• Replace FRUs only for the correct model. When you replace a FRU, make sure the model of the machine  and FRU part number are correct by referring to the parts list.
• A FRU should not be replaced because of a single, un-reproducible  failure. Single failures can occur from a variety of reasons  that have nothing to do with a hardware defect such as  electrostatic discharge or software errors.  FRU replacement should only be considered when  a recurring problem exists.

The servicer must include the following in the parts exchange form or part return form that is attached to the returned FRU.

1. Name and phone number of servicer.
2. Date of service.
3. Date when part failed.
4. Date of purchase.
5. Failure symptoms, error codes appearing on display,  and beep symptoms.
6. Procedure index and page number in which failing FRU was detected.
7. Failing FRU name and part number.
8. Machine type, model number, and serial number.
9. Customer's name and address.

Before checking problems with the computer, determine whether the damage is covered under the warranty by referring to 'What to Do First'

  Passwords

The Passwords are security features that are used to protect the system and the hard disk data from unauthorized access. There are two types of passwords:

• User Password
• Supervisor Password

How to Disable the Passwords

The following procedure disables both passwords.

1. Power-off the computer.
2. Disconnect the AC Adapter.
3. Open the keyboard and remove the battery pack.
4. Remove the Mylar cover.  See FRU Removals and Replacements
5. Locate the S2 switch block on the system board.
6. Set Switch 1 to Off.
7. Wait 30 seconds.
8. Set Switch 1 to On.
9. Replace the Mylar cover.
10. Replace the battery.
11. Connect the AC Adapter.
12. Power-on the computer.
13. Go to a DOS full screen.
14. Press Ctrl+Alt+F11 to access the setup screen and reset the passwords.

BIOS, System setup programs, and diagnostic tests are stored in flash memory.

Flash Memory Update

A flash memory update is required for new versions.

  When Updating Flash Memory

During the flash update do not:

• Power-off the computer.
• Disconnect the AC Adapter.
• Remove the battery.
• Lift the keyboard.
• Press any key.

  On certain systems, updating flash memory can reset all customer's configuration settings to the default values. The following steps bypass the CONFIG.SYS and AUTOEXEC.BAT files, so the customer's configuration setting are not reset to the default values.

To update the flash memory

1. Power-off the computer.
2. Install the battery pack and connect the AC Adapter.
3. Insert the update diskette in drive A.
4. Power-on the computer.
5. When the message Starting PC DOS appears, press F5 to bypass the CONFIG.SYS and AUTOEXEC.BAT.
6. At the prompt, select Country Language then press Enter .
7. Follow the instructions on the screen.

NOTE: The Setup Utility is ROM-resident and can only be started at a full-screen DOS prompt.

Do the following to run the Setup Utility.

1. Go to a DOS full screen.
2. Press Ctrl+Alt+F11 .
3. Follow the instructions on the screen.

When exiting the Setup Utility using Fn+6, press Ctrl+Alt together after returning to the full-screen DOS. This ensure the keyboard controller is in the proper reset state.

This section provides information about the following:

For the test programs to properly determine if a test Passed, Failed, or Aborted, the test programs check the error-return code at test completion. To register the test properly in the test log, the test programs must generate one of the following return codes:

The following table shows the system Fn key and function key combinations and their corresponding functions.

The Fn key works independently from the operating system. The operating system obtains the status through the system management interface to control the system.

When the adapter or device has more than one FRU, the error code could be caused by either FRU. Before replacing multiple-FRUs, try removing or exchanging each FRU, one by one in the designated sequence, to see if the symptoms change.

Scripting allows you to select specific groups of tests, testing parameters, and options. Your selection is saved for later use as a test Script. To set up a test script, first select all the appropriate test groups and specific tests you want to run from the Module Testing section under Diagnostics. You should also select appropriate testing parameters and options. See 'Using the Function Keys', for instructions to save a test script.

In some instances, you can have more than one logical unit number (LUN) for a particular module. LUNs represent individual devices within a test group or module. For example, you might have two diskette drives or two hard disk drives, or, you might have base, extended, shadow, and cache memory installed in the computer. This configuration might result in as many as four or five different LUNs in the Memory Test Group. Or you might have base, extended, shadow, and cache memory installed in the system which might result in as many as four or five different LUNs in the Memory Test Group.

To run all selected test modules:

1. Use the down arrow key (   ) to  move the cursor to the last choice, Run All Selected Modules.- Press Enter.

NOTE: A  appears next to your selection.

Open the door, then push down on the center of the door to remove it.

To replace the foot:

• Align the foot in the open position with one pivot pin in its  hinge in the cover base.
• Press the other pivot pin into position by rotating the foot  as shown.

To remove the optional SO-DIMM, release the latches as shown, then remove the SO-DIMM card.

  Do not drop or apply any shock to the hard disk drive. The hard disk drive is sensitive to physical shock. Incorrect handling can cause damage and permanent loss of data on the hard disk. Before removing the hard disk drive, have the user make a backup copy of all the information on the hard disk. Never remove the hard disk drive while the system is operating or is in suspend mode.

NOTE: The ThinkPad 365C, CD, CS, and CSD Model mylar cover is not secured with screws and can be easily removed after raising the keyboard.

The ThinkPad 365E, ED Model mylar cover is secured with screws. The following procedure is for ThinkPad 365E, ED Models only.

1. Remove the two screws as shown.
2. Carefully remove the mylar cover.

  During removal and replacement procedures, make sure the Mylar Cover does not interfere with the LCD Suspend Switch.

NOTE: Screws shown above are 8 mm long.

NOTE:

Screws shown above are 8 mm long.

  Make note of the location and placement of ground points and tape. Replace tape to its original position.

NOTE: Screws shown above are 6 mm long.

NOTE: Screws shown above are 8 mm long.

During replacement, make sure the microphone (A), speaker (B), and sound card (C) cable connections are correct.

NOTE: Screws shown above are 6 mm long.

1. Color LCD Screen
2. Contrast Control
3. Brightness Control
4. Status Indicator
5. Built in Microphone
6. LCD Suspend Switch
7. PCMCIA Release Levers
8. PCMCIA Slots
9. Locking Device Keyhole
10. LCD and Keyboard Latch
11. Keyboard
12. Click Buttons
13. CD-ROM or Diskette Drive
14. Mechanical CD-ROM Eject Button
15. Electronic CD-ROM Eject Button
16. Fn Key
17. TrackPoint
18. Speaker Volume Control
19. Built in Speaker

1. LCD and Keyboard Latch
2. Power Switch
3. Microphone/Line-In Jack
4. Line-in Jack
5. Line-out Headphone Jack
6. Power Jack
7. MIDI/Joystick Port
8. External Diskette Drive Connector
9. Parallel Connector
10. Infrared (IR) Port
11. Serial Connector
12. Rear Door
13. External Display Connector
14. External Keyboard/Mouse Connector
15. Port Replicator Connector