Apple 550C Bedienungsanleitung PDF herunterladen (Seite 48)

Troubleshooting Symptom Charts/Peripheral

(Continued)

- 23

Peripheral

(Continued)

Device connected to

external modem port

doesn’t work

1 Verify that External Modem is selected in CDEV.

2 Verify that System is 7.1.1 or later.

3 Check cables.

4 Test device with known-good computer.

5 Replace daughterboard.

6 Replace motherboard.

I/O devices are

unrecognized or

garbage is

transmitted or

received

1 Verify that System is 7.1.1 or later.

2 Check cables.

3 Verify that SCSI device is correctly terminated.

4 Verify that SCSI select switch setting on external device is

unique.

5 Test device with known-good computer.

6 Replace daughterboard.

7 Replace motherboard.

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Apple 550C Bedienungsanleitung Seite 48