Apple quadra 605.lc series Servicehandbuch

 

 Troubleshooting

Symptom Charts/Built-in Video - 4

 

Screen is dark, audio 

and at least one drive 

operate, fan runs, 

and LED is lit

1 Adjust brightness on monitor.

2 Try monitor with another Macintosh computer.

3 Check battery.

4 Replace monitor. Troubleshoot defective monitor. See 

Symptom Charts in appropriate monitor manual.

5 Replace video cable.

6 Replace VRAM SIMM. 

7 Replace logic board. Retain customer’s SIMMs.

8 Replace power supply.

Screen is dark, audio 

and drive do not 

operate, but fan runs 

and LED is lit

1 Remove expansion card, if present.

2 Remove peripherals.

3 Disconnect hard drive and floppy drive.

4 Replace SIMMs. Refer to Memory manual.

5 Replace logic board. Retain customer’s SIMMs.

6 Replace power supply.