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Service Hints & Tips

Document ID: GSMH-3C8LM9

This document is provided to IBM and our Business Partners to help sell and/or service IBM products. It is not to be distributed beyond that audience or used for any other purpose.

TP General - N51, Beep Symptoms

Applicable to: World-Wide

Beep Symptoms:

Symptom/Error	FRU/Action
Continuous beep.	1. System Board
Repeating short beeps. (See -- 'External Keyboard/Auxillary Input Device Checkout' -- before replacing any FRUs.)	1. Keyboard 2. Keyboard Control Card 3. System Board
One long and one short beep.	1. System Board
One long and two short beeps.	1. System Board
One short beep and a blank, unreadable, or flashing display with no external display attached.	1. LCD Panel 2. LCD Inverter 3. System Board 4. LCD Cable
One short beep and Diskette Prompt or a program load from the hard disk or unable to read diskette.	1. Diskette Drive 2. System Board 3. Diskette Drive Cable
Two short beeps and a blank display.	1. System Board

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	10-12-96
	Last Updated	01-05-98
	Revision Date	28-04-99
	Brand	IBM ThinkPad
	Product Family	Notebook N51
	Machine Type	8551
	Model	Various
	TypeModel
	Retain Tip (if applicable)	N/A
	Reverse Doclinks and Admin Purposes