No

Beep

Symptoms

 

 

 

 

 

 

 

 

Symptom/Error

 

 

 

 

FRU/Action

in

Sequence

 

 

 

 

 

 

 

 

No beep, power-on

 

Ÿ Ensure every connector is

indicator

 

on,

LCD

 

 

connected tightly and cor-

blank,

no

POST

 

 

 

rectly.

 

 

 

 

 

 

 

 

 

 

 

 

Ÿ

DIMM

 

 

 

 

 

 

 

 

 

 

 

 

 

Ÿ

System board

 

 

 

 

 

 

 

 

 

 

 

 

 

No

beep,

 

power-on

 

Ÿ

Battery ASM

 

 

 

indicator

 

off, LCD

 

Ÿ

AC Adapter

 

 

 

blank

 

during

POST

 

 

 

 

 

 

Ÿ

System board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

beep,

 

power-on

 

Ÿ

Reseat DIMM.

 

 

 

indicator

 

on,

LCD

 

Ÿ

System board

 

 

 

blank

 

during

POST

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

No

beep

during

 

Speaker

 

 

 

 

 

POST

but

system

 

 

 

 

 

 

 

 

 

runs

correctly.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD-Related Symptoms

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Symptom/Error

 

 

 

 

FRU/Action

in

Sequence

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD

 

backlight

not

1.

Reseat

the

LCD

connector.

working

 

 

 

 

2.

LCD

FPC

ASM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD

 

too dark

 

 

3.

LCD inverter

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD

 

brightness

4.

LCD

 

 

 

 

 

cannot

be

adjusted

 

 

 

 

 

5.

System board

 

 

 

LCD

 

contrast

cannot

 

 

 

 

 

 

 

 

 

 

 

 

be

adjusted

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

LCD

 

screen

unread-

1.

Reseat

the

LCD

connector.

able

 

 

 

 

 

2.

LCD

FPC

ASM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Character

 

missing

3.

LCD inverter

 

 

 

pels

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

LCD

 

 

 

 

 

Screen

abnormal

 

 

 

 

 

5.

System board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wrong color dis- played

LCD has extra hori- 1. LCD FPC ASM

zontal or vertical lines

2. LCD inverter

displayed.

3.LCD

4.System board

Keyboard-Related Symptoms

Symptom/Error

 

FRU/Action in Sequence

 

 

 

 

 

 

Keyboard

(one or

1.

Reseat the keyboard

cable.

more keys)

doesn't

2.

Keyboard

 

work.

 

 

 

3.

System board

 

 

 

 

 

 

 

 

 

Indicator-Related Symptoms

ThinkPad 24019

Page 24
Image 24
IBM S09N-8590-00 manual Keyboard-Related Symptoms, Indicator-Related Symptoms