TP 560/E - Other related symptoms

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Service Hints & Tips

Document ID: GKEY-3JYHDU

TP 560/E - Other related symptoms

Applicable to: World-Wide

LCD-Related Symptoms:

also
Keyboard/TrackPoint III-Related Symptoms
Indicator-Related Symptoms
Power-Related Symptoms
Function-Related Symptoms
Peripheral-Device-Related Symptoms
Infrared-Related Symptoms
Other Symptoms

Important:
The LCD for the notebook computer contains 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, but excessive pixel problems can cause viewing concerns.

The LCD should be replaced if the number of dots satisfies the following condition:
The number of missing, discolored, or lighted dots in any background is 21 or more.

Symptom / Error

FRU / Action in Sequence

No beep, power-on indicator on, and a blank LCD during POST.

1. System Board

LCD backlight not working, or
LCD too dark, or
LCD brightness cannot be adjusted, or
LCD contrast cannot be adjusted.

1. Reseat the LCD connectors.
2. LCD Assembly

LCD screen unreadable, or Characters missing pels, or
Screen abnormal, or
Wrong color displayed.

1. See important note for ¿LCD-Related Symptoms.—
2. Reseat all LCD connectors.
3. LCD Assembly
4. System Board

LCD has extra horizontal or vertical lines displayed.

LCD Assembly

Keyboard/TrackPoint III-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

Keyboard (one or more keys) does not work.

1. Reseat the keyboard cable on the system board.
2. Keyboard
3. System Board

TrackPoint III does not work.

1. Reseat the keyboard cable on the system board.
2. Go to ¿TrackPoint III Checkout—.
3. Keyboard
4. System Board

Pointer moves automatically or does not work correctly.

1. See ¿TrackPoint III Checkout—.

Indicator-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

Indicator incorrectly remains off or on, but system runs correctly.

1. System Board

Battery power status indicator blinks from green, yellow, to orange.

1. Check that a correct battery is installed.
2. Battery Pack
3. System Board

Power-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

Power shuts down during operation.

1. Go to ¿Power Systems Checkout—.
2. Battery Pack
3. Remove the battery pack and let it cool for two hours.
4. Power sources

The system will not power-off.
(See ¿Power Shutdown Switch—.)

1. Press the power shutdown switch.
2. System Board

Function-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

The system will not suspend or resume by opening or closing the LCD.

1. Go to ¿Suspend Mode—, and check that the computer can enter suspend mode.
2. Boot an operating system and press Fn+ F4. If the computer enters suspend mode, suspect that the application program is not working properly.
3. LCD Assembly
4. System Board

Battery Fuel-Gauge does not go higher than 90%.

Go to ¿Checking the Battery Pack— and see the note.

Memory count (size) appears different from actual size.

Go to ¿Memory Checkout—.

System configuration does not match the installed devices.

Go to ¿Checking the Installed Devices List'.

System hangs intermittently.

Go to ¿Intermittent Problems—.

Peripheral-Device-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

External display does not work correctly.

1. See ¿External Display Self-Test— in ¿Common Devices Checkout— section.

Printer problems.

1. Run Printer Self-test.
2. Parallel Port Device
3. Cable
4. System Board

Serial or parallel port device problems.

1. Device
2. Device Cable
3. System Board

Infrared-Related Symptoms:

Symptom / Error

FRU / Action in Sequence

Unable to communicate using the Infrared (IR) Port.

1. Make sure the setup for the IR is correct.
2. Make sure there are no fluorescent lights near the computer. The computer may receive optical noise from the fluorescent light.
3. Run the advanced diagnostic test. If an error occurs and a FRU code is displayed, replace the parts shown by the FRU code.

Other Symptoms:

Symptom / Error

FRU / Action in Sequence

Errors occur only when Port Replicator is used.

See ¿Port Replicator Checkout— on page 99.

PCMCIA slot pin is damaged.

PCMCIA Slots Assembly

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

Search Keywords

Hint Category

Hardware Maintenance Information

Date Created

14-07-97

Last Updated

19-08-98

Revision Date

17-08-99

Brand

IBM ThinkPad

Product Family

ThinkPad 560, ThinkPad 560E

Machine Type

2640

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Symptom / Error	FRU / Action in Sequence
No beep, power-on indicator on, and a blank LCD during POST.	1. System Board
LCD backlight not working, or LCD too dark, or LCD brightness cannot be adjusted, or LCD contrast cannot be adjusted.	1. Reseat the LCD connectors. 2. LCD Assembly
LCD screen unreadable, or Characters missing pels, or Screen abnormal, or Wrong color displayed.	1. See important note for ¿LCD-Related Symptoms.— 2. Reseat all LCD connectors. 3. LCD Assembly 4. System Board
LCD has extra horizontal or vertical lines displayed.	LCD Assembly

Symptom / Error	FRU / Action in Sequence
Keyboard (one or more keys) does not work.	1. Reseat the keyboard cable on the system board. 2. Keyboard 3. System Board
TrackPoint III does not work.	1. Reseat the keyboard cable on the system board. 2. Go to ¿TrackPoint III Checkout—. 3. Keyboard 4. System Board
Pointer moves automatically or does not work correctly.	1. See ¿TrackPoint III Checkout—.

Symptom / Error	FRU / Action in Sequence
Indicator incorrectly remains off or on, but system runs correctly.	1. System Board
Battery power status indicator blinks from green, yellow, to orange.	1. Check that a correct battery is installed. 2. Battery Pack 3. System Board

Symptom / Error	FRU / Action in Sequence
Power shuts down during operation.	1. Go to ¿Power Systems Checkout—. 2. Battery Pack 3. Remove the battery pack and let it cool for two hours. 4. Power sources
The system will not power-off. (See ¿Power Shutdown Switch—.)	1. Press the power shutdown switch. 2. System Board

Symptom / Error	FRU / Action in Sequence
The system will not suspend or resume by opening or closing the LCD.	1. Go to ¿Suspend Mode—, and check that the computer can enter suspend mode. 2. Boot an operating system and press Fn+ F4. If the computer enters suspend mode, suspect that the application program is not working properly. 3. LCD Assembly 4. System Board
Battery Fuel-Gauge does not go higher than 90%.	Go to ¿Checking the Battery Pack— and see the note.
Memory count (size) appears different from actual size.	Go to ¿Memory Checkout—.
System configuration does not match the installed devices.	Go to ¿Checking the Installed Devices List'.
System hangs intermittently.	Go to ¿Intermittent Problems—.

Symptom / Error	FRU / Action in Sequence
External display does not work correctly.	1. See ¿External Display Self-Test— in ¿Common Devices Checkout— section.
Printer problems.	1. Run Printer Self-test. 2. Parallel Port Device 3. Cable 4. System Board
Serial or parallel port device problems.	1. Device 2. Device Cable 3. System Board

Symptom / Error	FRU / Action in Sequence
Unable to communicate using the Infrared (IR) Port.	1. Make sure the setup for the IR is correct. 2. Make sure there are no fluorescent lights near the computer. The computer may receive optical noise from the fluorescent light. 3. Run the advanced diagnostic test. If an error occurs and a FRU code is displayed, replace the parts shown by the FRU code.

Symptom / Error	FRU / Action in Sequence
Errors occur only when Port Replicator is used.	See ¿Port Replicator Checkout— on page 99.
PCMCIA slot pin is damaged.	PCMCIA Slots Assembly

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	14-07-97
	Last Updated	19-08-98
	Revision Date	17-08-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 560, ThinkPad 560E
	Machine Type	2640
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes