Apple lc 580.performa 580cd Service Manual

 

 Troubleshooting

Symptom Charts/CD-ROM Drive

 

 (Continued)

 

 - 16

 

When an internal and 

external SCSI device 

are present, only one 

powers up

1 Verify that SCSI device ID switch setting on external device 

is higher than 0. Verify that ID switch setting on external 

SCSI device does not duplicate ID switch settings on other 

external SCSI devices.

2 Replace terminator on external SCSI device.

3 Replace SCSI select cable.