TP 365C/CS/CD/CSD/E/ED - LCD/Keyboard/Power etc related symptoms

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Service Hints & Tips

Document ID: RMIE-383KJX

TP 365C/CS/CD/CSD/E/ED - LCD/Keyboard/Power etc related symptoms

Applicable to: World-Wide

LCD Related Symptoms

Important
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.

Symptom/Error

FRU/Action

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. Inverter Card
3. LCD Assembly
4. Keyboard Card
5. DC/DC Card

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

1. See the preceding important note
2. Reseat all LCD connectors
3. LCD Assembly
4. System Board
5. Keyboard Card

LCD has extra horizontal or vertical lines displayed

1. LCD Assembly

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

1. System Board
2. DC/DC Card
3. Processor Card

Keyboard/TrackPoint Related Symptoms

Symptom/Error

FRU/Action

Keyboard (one or more keys) does not work

1. Reseat the three keyboard cables
2. Keyboard
3. Keyboard Card
4. System Board

TrackPoint does not work

1. Go to "TrackPoint III Checkout"
2. Keyboard
3. Keyboard Card
4. System

Board Pointer moves automatically or does not work correctly

1. See "TrackPoint III Checkout"

Indicator Related Symptoms

Symptom/Error

FRU/Action

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

1. Reseat the status indicator cable
2. Status Indicator
3. System Board

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

1. Check that a correct battery is installed
2. Battery Pack
3. DC/DC Card
4. System Board

Power Related Symptoms

Symptom/Error

FRU/Action

Power shut 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. DC/DC Card
5. Power sources

The system will not power-off

1. Remove AC Adapter
2. Remove the battery
3. Wait 10 seconds.
4. Reconnect the AC Adapter and try to reproduce the error
5. If the error remains, replace the System Board

Audio Related Symptoms

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 ż"Audio Card Checkout"

Peripheral Device Related Symptoms

Symptom/Error

FRU/Action

External display does not work correctly

1. See "External Display Self-Test"

Printer problems

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

Serial or parallel port device problems

1. Device
2. Device Cable
3. System Board

Other Symptoms

Symptom/Error

FRU/Action

Errors occur only when Port Replicator is used

1. See "Port Replicator Checkout"

PCMCIA slot pin is damaged

1. PCMCIA Socket
2. System Board

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

23-07-96

Last Updated

19-08-98

Revision Date

18-08-99

Brand

IBM ThinkPad

Product Family

ThinkPad 365C/CS, ThinkPad 365CD/CSD, ThinkPad 365E/ED

Machine Type

2625

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Symptom/Error	FRU/Action
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. Inverter Card 3. LCD Assembly 4. Keyboard Card 5. DC/DC Card
LCD screen unreadable, or Characters missing pels, or Screen abnormal, or Wrong color displayed	1. See the preceding important note 2. Reseat all LCD connectors 3. LCD Assembly 4. System Board 5. Keyboard Card
LCD has extra horizontal or vertical lines displayed	1. LCD Assembly
No beep, power-on indicator on, and a blank LCD during POST	1. System Board 2. DC/DC Card 3. Processor Card

Symptom/Error	FRU/Action
Keyboard (one or more keys) does not work	1. Reseat the three keyboard cables 2. Keyboard 3. Keyboard Card 4. System Board
TrackPoint does not work	1. Go to "TrackPoint III Checkout" 2. Keyboard 3. Keyboard Card 4. System
Board Pointer moves automatically or does not work correctly	1. See "TrackPoint III Checkout"

Symptom/Error	FRU/Action
Indicator incorrectly remains off or on, but system runs correctly.	1. Reseat the status indicator cable 2. Status Indicator 3. System Board
Battery power status indicator blinks from green, yellow, to orange	1. Check that a correct battery is installed 2. Battery Pack 3. DC/DC Card 4. System Board

Symptom/Error	FRU/Action
Power shut 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. DC/DC Card 5. Power sources
The system will not power-off	1. Remove AC Adapter 2. Remove the battery 3. Wait 10 seconds. 4. Reconnect the AC Adapter and try to reproduce the error 5. If the error remains, replace the System Board

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

Symptom/Error	FRU/Action
Errors occur only when Port Replicator is used	1. See "Port Replicator Checkout"
PCMCIA slot pin is damaged	1. PCMCIA Socket 2. System Board

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	23-07-96
	Last Updated	19-08-98
	Revision Date	18-08-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 365C/CS, ThinkPad 365CD/CSD, ThinkPad 365E/ED
	Machine Type	2625
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes