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Apple quadra.lc 630.performa 640 Service Manual

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 Troubleshooting
Symptom Charts/CD-ROM drive - 13
 
CD-ROM drive
 
CD-ROM drive does 
not accept disc
1 Replace disc (if dirty or damaged). 
2 Reseat CD-ROM drive.
3 Replace CD-ROM drive. 
Volume control does 
not operate correctly
1 Check Control Panel Sound setting.
2 Check front panel controls.
3 Reseat front panel control board.
4 Replace shield/wiring harness chassis.
Macintosh cannot 
mount CD-ROM drive
1 Reseat CD-ROM drive.
2 Check SCSI ID setting; internal CD-ROM drive was originally 
set at 3 at the factory.
3 Replace CD-ROM drive.