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Service Hints & Tips

Document ID: GKEY-3JMEM4

TP 765D/L - Related Service Procedures

Applicable to: World-Wide

Related Service Procedures

This document provides information about the following:

Status Indicators
LCD Information Panel
Running the Diagnostics
Displaying the Error Log
Checking the Installed Devices List
Password Combinations(POP,HDP, PAP)
Running a Low-Level Format
Checking the PC Test Card LED
Fn Key Combinations

Status Indicators

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

Symbol

Color

Meaning

Green

Battery fully charged

Orange

Battery charging

Blinking orange

Battery needs charging

Green

Computer is in suspend mode

Blinking green

Computer is entering suspend mode or hiberation, or resuming normal operation

Green

~Power on


LCD Information Panel

The LCD information panel shows the current status using these icons.

Icon

Meaning

1.

Speaker

2.

Remaining battery

3. (left)

Secondary battery status

3. (right)

Main battery status

4.

Diskette drive in-use

5.

Hard disk in-use

6.

Numeric lock

7.

Caps lock

8.

Scroll lock


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 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)

CDROM:

Any CD (data CD is recommended)




1.

Press and hold the F1 key; then power on the computer. Hold the F1 key down until the Easy-Setup screen appears.

2.

Select Test and press Enter.

3.

Select a device and press Enter to run the test.

The test progress screen appears. OK appears when the test ends without any errors.

4.

Start the Advanced Diagnostic test by pressing Ctrl+A on the basic diagnostic menu screen.

5.

Select Tool to install the tools.

6.

Select a device, press the Spacebar , and install the tool. You can install the multiple devices by repeating this step.
A mark appears beside the selected devices.

7.

Select OK and press Enter if the selection is OK.

8.

Select a device and press Enter to start the tests.

9.

Select Test All to test all devices.

10.

Select Loop Test to run the tests in a repeated loop.
A loop option menu appears in which a device loop or all-device 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.

11.

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.




Displaying the Error Log

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 the system is powered off.

Checking the Installed Devices List

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 in the configuration, such as an FDD-1.

2.

If the problem remains, replace the system board.


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

The FDD-1 icon represents the first drive in the system configuration for each type of device.
For Model 765D, FDD-1 represents an external diskette drive attached through the external diskette
drive connector. Similarly, the FDD-2 icon represents the second drive, usually attached through a port replicator.

Password Combinations (POP, HDP, PAP)

When the power-on password (POP), hard disk password (HDP), and supervisor password (PAP) are used,
the following situations may occur:

When the POP is the same as the HDP-1 or HDP-2

The POP prompt appears, but one of the HDP prompts does not appear.

When the POP is not the same as the HDP-1 and HDP-2

The POP, HDP-1, and HDP-2 prompts all appear.

PAP and HDP-1 or HDP-2

When the PAP is used, the HDP-1 or HDP-2 is enabled automatically, but no HDP prompt appears. The HDP-1 and HDP-2 are set the same as PAP.



Running a Low-Level Format

Do the following to format the hard disk.
Warning: Make sure the drive address to be formatted is correct. This procedure erases all information on the disk.

1.

Power off the computer.

2.

Insert the ¨ThinkPad Hardware Maintenance Diskette V 1.30´ or later into diskette driveA and power on the computer.

3.

Select Format the hard disk from the main menu.

4.

Select the drive from the menu.

5.

Follow the instructions on the screen.


Checking the PC Test Card LED

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 by the diagnostic error code.


Fn Key Combinations

The following table shows the 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.

Fn+

Description

F1

Reserved

F2

Fuel-Gauge display on or off

F3

Standby mode invocation

F4

Suspend mode invocation

F5

Reserved

F6

Reserved

F7

Switching display between LCD and CRT

F8

Reserved

F9

Reserved

F10

Reserved

F11

Switching power management mode
(High Performance, Automatic, and Customized)

F12

Hibernation invocation



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Hardware Maintenance Information

Date Created

03-07-97

Last Updated

19-08-98

Revision Date

18-08-99

Brand

IBM ThinkPad

Product Family

ThinkPad 765L, ThinkPad 765D

Machine Type

9546, 9547

Model

Various

TypeModel

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