Инструкции По Обслуживанию для Apple quadra.lc 630.performa 640

Скачать
Страница из 141
 
 Troubleshooting
Symptom Charts/Video - 6
 
Video
 
Screen is dark, audio 
and at least one drive 
operate, fan runs, 
and LED is lit
1 Confirm that video connections are secure.
2 Confirm that monitor-out daughterboard connection on the 
fan bracket is secure.
3 Reseat logic board.
4 Perform monitor adjustments
5 Replace monitor.  
6 Replace logic board.  Retain customer’s  SIMMs.
7 Replace power supply.
Video will not play or 
system hangs when 
you attempt to run 
video in units with 
MPEG card 
1 If chip at location U12 on MPEG card displays number 
341SO205, check all connections.
2 If chip at location U12 on MPEG card does not display 
number 341SO205, replace MPEG card