ThinkPad Port Replicator

Introduction: The ThinkPad Port Replicator allows users to quickly connect to a desktop environment with a single cable.

Running the Diagnostics

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

1. Connect the external floppy disk drive to the computer
2. Insert the PC Doctor Startup disk into the FDD
3. Power-on the computer
4. From the PC DOS 7.0 Startup Menu, select 2. CONFIG for TP-240 Audio Test to run the audio test
5. After the audio test, you will be prompted to insert the PC Doctor for DOS Disk 2.  Follow the instructions on the screen and proceed to the main menu
6. At the main menu, select the test to run
7. Press Enter to run the test selected
8. After starting a test, do not press any key until prompted, then follow the instructions on the screen
9. When the test is completed, press Esc to return to the main menu
10. Select Quit/Exit Diags to exit the diagnostics utility.

Symptom-to-FRU Index

The Symptom-to-FRU Index lists the symptoms and errors and the possible causes.

The most likely cause is listed first.

Note: Perform the FRU replacement or actions in the sequence shown in the FRU/Action columns.

If a FRU replacement does not solve the problem, put the original part back in the computer.

Do not replace a non-defective FRU.

This index can also be used to help you decide the next possible FRUs to be replaced when servicing a computer.

Numeric error codes show the errors detected in POST or system operation (runtime).

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 this ThinkPad computer, see the manual for that device.

Numeric Error Codes

The following is a list of the message that the BIOS can display.

Most of them occur during POST. Some of them display information about a hardware device, e.g., the amount of memory installed. Others may indicate a problem with a device, such as the way it has been configured.

Following the list are explanations of the messages and remedies for reported problems.

If the system fails after you make changes in the Setup menus, reset the computer, enter Setup and install Setup defaults or correct the error.

Symptom/Error	FRU/Action in Sequence
0200 Failure Fixed Disk	1. Reseat hard disk drive. 2. Load Setup Defaults in BIOS Setup Utility. 3. Hard disk drive 4. System board
0211 Stuck Key	Go to 'Keyboard and Auxiliary Input Device Checkout'.
0211 Keyboard error	Go to 'Keyboard and Auxiliary Input Device Checkout'.
0212 Keyboard Controller Failed	Go to 'Keyboard and Auxiliary Input Device Checkout'.
0213 Keyboard locked - Unlock key switch	Unlock external keyboard.
0220 Monitor type does not match CMOS - Run Setup	Load Setup Defaults in BIOS Setup Utility.
0230 Shadow RAM Failed at offset:nnnn	System board
0231 System RAM Failed at offset:nnnn	1. DIMM 2. System board
0232 Extended RAM Failed at offset:nnnn	1. DIMM 2. System board
0250 System battery is dead	System board
0251 System CMOS checksum bad - Default configuration used	System board
0260 System timer error	1. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 2. System board
0270 Real time clock error	1. Run BIOS Setup Utility to reconfigure the system, then reboot the system. 2. System board
0280 Previous boot incomplete - Default configuration used	1. Load Setup Defaults in the BIOS Setup Utility. 2. System board
0281 Memory size found by POST differed from CMOS	1. Load Setup Defaults in the BIOS Setup Utility. 2. DIMM 3. System board
02D0 - Cache disabled System cache error	System board
02F0 CPU ID:	System board
02F5 DMA Test Failed	1. DIMM 2. System board
02F6 Software NMI Failed	1. DIMM 2. System board
02F7 Fail-Safe Timer NMI Failed	1. DIMM 2. System board

No Beep Symptoms

Symptom/Error	FRU/Action in Sequence
No beep, power-on indicator on, LCD blank, no POST No beep, power-on indicator off, LCD blank during POST No beep, power-on indicator on, LCD blank during POST	a. Ensure every connector is connected tightly and correctly. b. DIMM c. System board a. Battery Asm b. AC Adapter c. System board a. Reseat DIMM. b. System board
No beep during POST but system runs correctly.	Speaker

Intermittent Problems

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, electronic discharge, or software errors.

FRU replacement should be considered only when a recurring problem exists.

When analyzing an intermittent problem, do the following:

1. Run the diagnostic test for the system board in loop mode at least 10 times.
2. If no error is detected, do not replace any FRUs.
3. If any error is detected, replace the FRU shown by the FRU code. Rerun the test to verify that no more errors exist.

Power-Related Symptoms

Symptom/Error	FRU/Action in Sequence
Power shuts down during operation.	1. Battery 2. AC Adapter 3. System board
The system will not power on.	1. Battery Asm 2. AC Adapter 3. System board
The system will not power off. Battery can't be charged.	1. System board a. Battery b. System board

Power Management-Related Symptoms

Symptom/Error	FRU/Action in Sequence
The system will not enter hibernation mode.	1. Keyboard (if control is from the keyboard) 2. Hard disk drive 3. System board
The system will not wake up from hibernation mode.	1. Keyboard (if control is from the keyboard) 2. Hard disk drive 3. System board
The system will not enter suspend mode after closing the LCD.	1. LED Card Asm (R) 2. System board
Battery fuel-gauge does not go higher than 90%.	1. Remove battery Asm and let it cool for 2 hours. 2. Refresh battery (continue using battery in BIOS Setup mode until power off, then charge battery). 3. Battery 4. System board
System configuration does not match the installed devices.	1. Load Setup Defaults and reboot the system.
System hangs intermittently.	1. Fan Asm 2. System board

Power System Checkout

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

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

If you suspect a power problem, refer to the appropriate power supply check listed below:

Checking the AC Adapter

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

• 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 the Operational Charging'

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

See the following figure:

 

Pin	Voltage (Vdc)
1	+15 to +17.0
2	Ground

If the voltage is not correct, replace the AC Adapter.

If the voltage is within the range, do the following:

• Replace the system board.
• If the problem is not corrected, go to 'Undetermined Problems' .

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

Checking the Operational Charging

To check operational charging, use a discharged battery pack (battery Asm) or a battery Asm 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 Asm and let it return to room temperature. Reinstall the battery Asm.

If the charge indicator still does not turn on, replace the battery Asm.

If the charge indicator still does not turn on, replace the system board. Then reinstall the battery Asm.

If the reinstalled battery Asm is not charged, go to Checking the Battery Asm'.

Checking the Battery Asm

Do the following:

1. Power off the computer

2. Remove the battery Asm and measure the voltage between battery terminals 1 (+) and 5 (-).

   See the following figure:

   

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

   • If the voltage is less than 10.6V, the battery Asm has been discharged, recharge the battery Asm.

   If the voltage is still less than 10.6V, replace the battery.

Keyboard-Related Symptoms

Symptom/Error	FRU/Action in Sequence
Keyboard (one or more keys) doesn't work.	1. Reseat the keyboard cable. 2. Keyboard 3. System board

Keyboard and Auxiliary Input Device Checkout

Note: 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 on the connector.

If the keyboard cable connection is correct, run the Keyboard Test.

See 'Running the Diagnostics' for details.

If the test detects a keyboard problem, do the following one at a time to correct the problem.

Do not replace a nondefective FRU.

1. Replace the keyboard.
2. 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 reoccur, replace the device and then the planar board.

Error Messages

Symptom/Error	FRU/Action in Sequence
Device Address Conflict	1. Load Setup Defaults in BIOS Setup Utility. 2. System board
Allocation Error for: device	1. Load Setup Defaults in BIOS Setup Utility. 2. System board
Failing Bits: nnnn Invalid System	1. DIMM 2. System board
Configuration Data	System board
I/O device IRQ conflict	1. Load Setup Defaults in BIOS Setup Utility. 2. System board
Operating system not found	1. Enter BIOS Setup Utility and see if the hard disk drive and diskette drive A: are properly identified. 2. Hard disk drive 3. System board

LCD-Related Symptoms

Symptom/Error	FRU/Action in Sequence
LCD backlight not working LCD too dark LCD brightness cannot be adjusted LCD contrast cannot be adjusted	1. Reseat the LCD connector. 2. LCD FPC Asm 3. LCD inverter 4. LCD 5. System board
LCD screen unreadable Character missing pels Screen abnormal Wrong color displayed	1. Reseat the LCD connector. 2. LCD FPC Asm 3. LCD inverter 4. LCD 5. System board
LCD has extra horizontal or vertical lines displayed.	1. LCD FPC Asm 2. LCD inverter 3. LCD 4. System board

Indicator-Related Symptoms

Symptom/Error	FRU/Action in Sequence
Indicator incorrectly remains off or on, but system runs correctly.	1. Reseat the LED cable. 2. LED cable 3. System board

PC Card (PCMCIA)-Related Symptoms

Symptom/Error	FRU/Action in Sequence
System cannot detect the PC Card (PCMCIA)	1. PC Card (PCMCIA) slots assembly 2. System board

Speaker-Related Symptoms

Symptom/Error	FRU/Action in Sequence
Speakers make noise or no sound comes from system.	1. Speaker 2. System board
In DOS or Windows multimedia programs, no sound comes from the computer.	1. Speaker 2. System board

Peripheral-Device-Related Symptom

Symptom/Error	FRU/Action in Sequence
External display does not work correctly.	System board
USB does not work correctly. Print problems Serial or parallel port device problems	System board a. Run printer self-test. b. Printer driver c. Printer cable d. System board a. Device driver b. Device cable c. Device d. System board

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

Undetermined Problems

You are here because the diagnostic tests did not identify which adapter or device failed, which installed devices are incorrect, whether a short circuit is suspected, or whether the system is inoperative.

Follow these procedures to isolate the failing FRU (do not isolate non-defective FRUs).

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

(See 'Power System Checkout'.)

1. Power off the computer

2. Visually check for damage. If any problems are found, replace the FRU
3. Remove or disconnect all of the following devices:
   1. Non-IBM devices
   2. Printer, mouse, and other external devices
   3. Battery Asm
   4. Hard disk drive
   5. DIMM
   6. PC Cards (PCMCIA)
   • Power on the computer.
   • Determine if the problem has changed.
   • If the problem does not recur, 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.
     1. System board
     2. LCD panel Asm