TP 755CE/CSE/CV/CX - Beep Symptoms

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Service Hints & Tips

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TP 755CE/CSE/CV/CX - Beep Symptoms

Applicable to: World-Wide

Beep Symptoms:

Symptom/Error

FRU/Action

Continuous beeps.

System Board

One beep and a blank, unreadable, or flashing LCD.

1. Reseat all LCD connectors.
2. LCD Assembly
3. System Board
4. DC/DC Card

One beep, and the message "Unable to access boot source".

1. Boot device
2. System Board

One long, two short beeps and a blank or unreadable LCD.

1. System Board
2. LCD Assembly

One long beep followed by four short beeps each time the power switch is operated.
(System cannot power-on due to low battery voltage.)

Connect the AC Adapter or install a fully-charged battery.

One beep every second.
(System is shutting down due to low battery voltage.)

Connect the AC Adapter or install a fully-charged battery (allows system to
complete shutdown before changing the battery).

Two short beeps with error codes.

POST error. See "Numeric Error Codes".

Two short beeps with blank screen.

System Board

Search Keywords

Hint Category

Hardware Maintenance Information

Date Created

19-11-96

Last Updated

19-08-98

Revision Date

18-08-99

Brand

IBM ThinkPad

Product Family

ThinkPad 755CE/CSE, ThinkPad 755CX, ThinkPad 755CV

Machine Type

9545

Model

Various

TypeModel

Retain Tip (if applicable)

N/A

Reverse Doclinks
and Admin Purposes

Symptom/Error	FRU/Action
Continuous beeps.	System Board
One beep and a blank, unreadable, or flashing LCD.	1. Reseat all LCD connectors. 2. LCD Assembly 3. System Board 4. DC/DC Card
One beep, and the message "Unable to access boot source".	1. Boot device 2. System Board
One long, two short beeps and a blank or unreadable LCD.	1. System Board 2. LCD Assembly
One long beep followed by four short beeps each time the power switch is operated. (System cannot power-on due to low battery voltage.)	Connect the AC Adapter or install a fully-charged battery.
One beep every second. (System is shutting down due to low battery voltage.)	Connect the AC Adapter or install a fully-charged battery (allows system to complete shutdown before changing the battery).
Two short beeps with error codes.	POST error. See "Numeric Error Codes".
Two short beeps with blank screen.	System Board

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	19-11-96
	Last Updated	19-08-98
	Revision Date	18-08-99
	Brand	IBM ThinkPad
	Product Family	ThinkPad 755CE/CSE, ThinkPad 755CX, ThinkPad 755CV
	Machine Type	9545
	Model	Various
	TypeModel
	Retain Tip (if applicable)	N/A
	Reverse Doclinks and Admin Purposes