Specifications

Troubleshooting Symptom Charts/Video - 2
Symptom Charts
Video
Screen is dark, audio
and at least one drive
operate, fan is
running, and LED is
lit
1 Adjust brightness on monitor.
2 Replace monitor. Refer to appropriate monitor manual to
troubleshoot defective monitor.
3 Replace video cable.
4 Replace VRAM SIMMs.
5 Replace logic board. Retain customer’s SIMMs.
Screen is dark, audio
and drive do not
operate, fan is
running, and LED is
lit
1 Remove peripherals.
2 Remove NuBus cards.
3 Replace DRAM SIMMs.
4 Replace VRAM SIMMs.
5 Replace power supply.
6 Replace logic board.