Symptom-to-FRU index
Beep symptoms
No beep symptoms
Symptom or error
FRU or action, in
sequence
One beep and a blank,
unreadable, or flashing LCD
1. Reseat the LCD
connector
2. LCD assembly
3. System board
One long and two short
beeps, and a blank or
unreadable LCD
1. System board.
2. LCD assembly.
Two short beeps with error
codes
POST error. See
“Numeric error codes” on
page 42.
Two short beeps with blank
screen
1. System board.
Symptom or error
FRU or action, in
sequence
No beep, power-on indicator
on, LCD blank, and no
POST
1. Ensure that every
connector is
connected tightly and
correctly.
2. DIMM.
3. System board.
No beep, power-on indicator
on, and LCD blank during
POST
1. Reseat DIMM.
2. System board.
No beep, during POST but
system runs correctly
1. Speaker.
LCD-related symptoms
Important
The TFT LCD for the notebook computer contains
many thin-film transistors (TFTs). A small number of
dots that are missing, discolored, or always lighted is
characteristic of TFT LCD technology, but excessive
pixel problems can cause viewing concerns. The LCD
should be replaced if the number of missing,
discolored, or lighted dots in any background is:
SVGA (12.1 in.): 5 or more bright dots, 5 or
more dark dots or a total of 9 or more bright and
dark dots.
XGA (13.3 in.): 8 or more bright dots, 8 or more
dark dots or a total of 9 or more bright and dark
dots.
ThinkPad 570 and 570E
45
Содержание MT 2643
Страница 1: ...January 2000 This manual supports ThinkPad 570 MT 2643 2644 ThinkPad 570E MT 2643 2644 ...
Страница 22: ...18 ThinkPad 570 and 570E Hardware Maintenance Manual ...
Страница 57: ...Removing and replacing a FRU 1010 Battery pack ThinkPad 570 and 570E 53 ...
Страница 59: ...Removing and replacing a FRU Cable route ThinkPad 570 and 570E 55 ...
Страница 64: ...Removing and replacing a FRU 60 ThinkPad 570 and 570E Hardware Maintenance Manual ...
Страница 87: ...Removing and replacing a FRU ThinkPad 570 and 570E 83 ...
Страница 97: ...Removing and replacing a FRU Battery pack in the UltraBase ThinkPad 570 and 570E 93 ...
Страница 99: ...Locations ThinkPad 570 and 570E 95 ...
Страница 102: ...Locations Password pads 98 ThinkPad 570 and 570E Hardware Maintenance Manual ...
Страница 103: ...Parts list Parts List ThinkPad 570 and 570E 99 ...
Страница 107: ...Parts list LCD FRU 13 3 inch XGA TFT continued ThinkPad 570 and 570E 103 ...
Страница 114: ...Parts list 110 ThinkPad 570 and 570E Hardware Maintenance Manual ...
Страница 116: ...Part Number 09N8609 Printed in U S A ...