TP 380Z - Beep/no beep symptoms

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Service Hints & Tips

Document ID: LWIK-3XNQ7P

TP 380Z - 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

Continuous beeps

System board

One beep and a blank, unreadable, or flashing LCD

1. Reseat the LCD connector
2. LCD assembly
3. System board

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

1. Boot device
2. System board

One long and two short beeps, and a blank or an 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 turn 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. (Allow the
system to completely shut down before changing the battery)

Two short beeps with error codes

POST error. See "Numeric Error Codes" on page 23 in the HMM

Two short beeps and a blank screen

System board

No beep symptoms

Symptom / Error

FRU / Action in Sequence

No beep, power-on indicator not on, and a blank LCD during POST

1. Go to "Power Systems Checkout" on page 13 of the HMM
2. DC/DC card
3. System board
4. CPU card
5. Check the power outlet

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

1. DC/DC card
2. System board
3. CPU card

No beep, power-on indicator on, and a blinking cursor only during POST

1. DC/DC card
2. CPU card
3. System board

No beep during POST but the system runs correctly

1. Turn the volume up and check the speaker.
2. Speaker
3. System board

Search Keywords

Hint Category

Hardware Maintenance Information

Date Created

24-08-98

Last Updated

19-01-99

Revision Date

19-01-2000

Brand

IBM ThinkPad

Product Family

ThinkPad 380Z

Machine Type

2635, 2636

Model

Various

TypeModel

Retain Tip (if applicable)

Reverse Doclinks
and Admin Purposes

Symptom / Error	FRU / Action in Sequence
Continuous beeps	System board
One beep and a blank, unreadable, or flashing LCD	1. Reseat the LCD connector 2. LCD assembly 3. System board
One beep, and the message "Unable to access boot source" appears	1. Boot device 2. System board
One long and two short beeps, and a blank or an 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 turn 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. (Allow the system to completely shut down before changing the battery)
Two short beeps with error codes	POST error. See "Numeric Error Codes" on page 23 in the HMM
Two short beeps and a blank screen	System board

Symptom / Error	FRU / Action in Sequence
No beep, power-on indicator not on, and a blank LCD during POST	1. Go to "Power Systems Checkout" on page 13 of the HMM 2. DC/DC card 3. System board 4. CPU card 5. Check the power outlet
No beep, power-on indicator on, and a blank LCD during POST.	1. DC/DC card 2. System board 3. CPU card
No beep, power-on indicator on, and a blinking cursor only during POST	1. DC/DC card 2. CPU card 3. System board
No beep during POST but the system runs correctly	1. Turn the volume up and check the speaker. 2. Speaker 3. System board

	Search Keywords
	Hint Category	Hardware Maintenance Information
	Date Created	24-08-98
	Last Updated	19-01-99
	Revision Date	19-01-2000
	Brand	IBM ThinkPad
	Product Family	ThinkPad 380Z
	Machine Type	2635, 2636
	Model	Various
	TypeModel
	Retain Tip (if applicable)
	Reverse Doclinks and Admin Purposes