Apple quadra 700.mac iicx.iici サービスマニュアル
![Apple](https://files.manualsbrain.com/attachments/2c022a7d1a76dcd8f02c04aa8d97faf41b63902f/common/fit/150/50/8a691e9df6162751590e2cef93a951cf3a39c94b6949421016232655b22d/brand_logo.png)
Troubleshooting
Symptom Charts/Video - 4
Video
Screen is dark, audio
and 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 Move video card to different slot.
5 Replace video card.
6 Quadra 700: Replace VRAM SIMMs.
7 Macintosh IIcx/IIci: Make sure ROM jumper is on.
8 Replace SIMMs.
9 Replace logic board. Retain customer’s SIMMs.
10 Replace power supply.