Apple quadra 800.ws 80 Service Manual

 

 Troubleshooting

Symptom Charts - 3

 

Does not power on; 

screen is black, fan is 

not running, and LED 

is not lit

1 Check power cables.

2 Plug monitor directly into wall socket, and verify that 

monitor has power.

3 Replace power cord.

4 Replace power supply.

5 Replace logic board.  Retain customer’s SIMMs.

Clicking, chirping, 

or thumping

1 Replace power supply.

2 Replace logic board.  Retain customer’s SIMMs.

3 Replace floppy drive cable.

4 Replace floppy drive.