Troubleshooting

 

Symptom Charts/Peripheral (Continued) - 21

 

 

Peripheral (Continued)

Device connected to

1

Verify that External Modem is selected in CDEV.

external modem port

2

Verify that System is 7.1.1 or later.

doesn’t work

3

Check cables.

 

 

4

Test device with known-good computer.

 

 

5

Replace daughterboard.

 

 

6

Replace motherboard.

I/O devices are

1

Verify that System is 7.1.1 or later.

unrecognized or

2

Check cables.

garbage is

3

Verify that SCSI device is correctly terminated.

transmitted or

4

Verify that SCSI select switch setting on external device is

received

5

unique.

 

 

Test device with known-good computer.

 

 

6

Replace daughterboard.

 

 

7

Replace motherboard.

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Apple 540C, 520C manual Peripheral