Apple performa 6100 Servicehandbuch

 

 Troubleshooting

Symptom Charts/Video - 4

 

Screen is dark, audio 

and at least one drive 

operate, fan is 

running, and LED is 

lit

1 Adjust brightness on monitor.

2 Replace video cable.

3 Replace monitor. Refer to appropriate monitor manual to 

troubleshoot defective monitor.

4 Replace logic board. Retain customer’s SIMMs.

Screen is dark, audio 

and drive do not 

operate, fan is 

running, and LED is 

lit

1 Reset logic board. (Refer to Additional Procedures.)

2 Reseat ROM SIMM and cache SIMM.

3 Remove peripherals.

4 Replace DRAM SIMMs.

5 Replace power supply.

6 Replace logic board.