TP 1400 - Beep/No Beep Symptoms

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Service Hints & Tips

Document ID: BMOE-42HN3Q

TP 1400 - Beep/No Beep Symptoms

Applicable to: World-Wide

The following information is intended for IBM Dealers and Authorized Servicers only. Customers attempting to follow any of the procedures below may void their warranty.

Beep Symptoms:

Symptom/Error

FRU/Action in Sequence

Five short beeps, power-on indicator turns on then off and
LCD is blank.

Ensure that "System Boot Drive" in the "System Security" menu of the BIOS Utility is not set to "Drive A".
Battery

Four short beeps every minute and system doesn't enter
hibernation mode.

Go to "Hibernation Mode"
Hard disk connection board
Hard disk drive
Planar board

No Beep Symptoms:

Symptom/Error

FRU/Action in Sequence

Insert system diskette and press <Enter> key to reboot.

Ensure that "System Boot Drive" in the "System Security" menu of the BIOS Utility is not set to "Drive A".
Ensure the diskette drive configuration in the "Basic System Settings" menu of the BIOS Utility is not set correctly.
Diskette drive cable
Diskette drive
Hard disk connection board
Hard disk drive
Planar board

No beep, power-on indicator turns off and LCD is blank.

Power source (battery and adapter). See "Power Systems Check"
Ensure every connector is connected tightly and correctly.
Charger board
Battery pack
AC Adapter
Planar board

No beep, power-on indicator turns on and LCD is blank.

Power source (battery and adapter). See "Power Systems Check"
Reconnect the LCD connector
Charger board
CPU board
Reconnect the DIMM.
Planar board

No beep, power-on indicator turns on and LCD is blank. But
you can see POST on an external CRT.

Reconnect the LCD connectors.
LCD inverter ID
LCD LVDS board (for 13.3" inch LCD)
LCD FPC cable
LCD inverter
LCD
Planar board

No beep, power-on indicator turns on and a blinking cursor
shown on LCD during POST.

Ensure every connector is connected tightly and correctly.
Planar board

No beep during POST but system runs correctly.

Adjust the audio volume control.
Speaker connector
Planar board

Note: The buzzer is on the planar board.

Search Keywords

Document Category

Error Messages

Date Created

23-11-98

Last Updated

24-11-98

Revision Date

Brand

IBM ThinkPad

Product Family

ThinkPad i Series 1400

Machine Type

2611

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Symptom/Error	FRU/Action in Sequence
Five short beeps, power-on indicator turns on then off and LCD is blank.	Ensure that "System Boot Drive" in the "System Security" menu of the BIOS Utility is not set to "Drive A". Battery
Four short beeps every minute and system doesn't enter hibernation mode.	Go to "Hibernation Mode" Hard disk connection board Hard disk drive Planar board

Symptom/Error	FRU/Action in Sequence
Insert system diskette and press <Enter> key to reboot.	Ensure that "System Boot Drive" in the "System Security" menu of the BIOS Utility is not set to "Drive A". Ensure the diskette drive configuration in the "Basic System Settings" menu of the BIOS Utility is not set correctly. Diskette drive cable Diskette drive Hard disk connection board Hard disk drive Planar board
No beep, power-on indicator turns off and LCD is blank.	Power source (battery and adapter). See "Power Systems Check" Ensure every connector is connected tightly and correctly. Charger board Battery pack AC Adapter Planar board
No beep, power-on indicator turns on and LCD is blank.	Power source (battery and adapter). See "Power Systems Check" Reconnect the LCD connector Charger board CPU board Reconnect the DIMM. Planar board
No beep, power-on indicator turns on and LCD is blank. But you can see POST on an external CRT.	Reconnect the LCD connectors. LCD inverter ID LCD LVDS board (for 13.3" inch LCD) LCD FPC cable LCD inverter LCD Planar board
No beep, power-on indicator turns on and a blinking cursor shown on LCD during POST.	Ensure every connector is connected tightly and correctly. Planar board
No beep during POST but system runs correctly.	Adjust the audio volume control. Speaker connector Planar board Note: The buzzer is on the planar board.

	Search Keywords
	Document Category	Error Messages
	Date Created	23-11-98
	Last Updated	24-11-98
	Revision Date
	Brand	IBM ThinkPad
	Product Family	ThinkPad i Series 1400
	Machine Type	2611
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes