No Beep Symptoms; Lcd-Related Symptoms - IBM ThinkPad 365C 2625 Maintenance Manual

Symptom / Error
Two short beeps with error
codes.
Two short beeps with blank
screen.

No Beep Symptoms

Symptom / Error
No beep, power-on indicator
not on, and a blank LCD
during POST.
No beep, power-on indicator
on, and a blank LCD during
POST.
No beep, power-on indicator
on, and a blinking cursor
only during POST.
No beep during POST but
system runs correctly.

LCD-Related Symptoms

Important
The LCD for the notebook computer contains over
921 000 thin-film transistors (TFTs). A small number
of missing, discolored, or lighted dots (on all the time)
is characteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of dots satisfies the
following condition:
The number of missing, discolored, or lighted
dots in any background is 21 or more.
Symptom / Error
No beep, power-on indicator
on, and a blank LCD during
POST.
ThinkPad 380, 380D, 385, 385D (2635)
FRU / Action in Sequence
POST error. See
"Numeric Error Codes" on
page 199.
System board
FRU / Action in Sequence
1. Go to "Power
Systems Checkout"
on page 193.
2. System board
3. Subcard
4. Power sources
1. System board
2. Subcard
1. System board
2. Subcard
1. Turn the volume up
and check the
speaker.
2. Speaker
3. System board
4. Subcard
FRU / Action in Sequence
1. System board
2. Subcard
205