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Service Hints & Tips

Document ID: GSMH-3B5CXY

TP 360,355,750,755 - 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	05-11-96
	Last Updated	29-04-99
	Revision Date	06-05-2000
	Brand	IBM ThinkPad
	Product Family	ThinkPad 355, ThinkPad 360, ThinkPad 750, ThinkPad 755C/CS
	Machine Type	2619, 2620, 9545
	Model	All
	TypeModel
	Retain Tip (if applicable)	N/A
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