Apple quadra 800.ws 80 Service Manual

 

 Troubleshooting

Symptom Charts - 8

 

Internal floppy drive 

does not operate

1 Replace disk with known-good floppy disk.

2 Replace floppy drive cable.

3 Replace floppy drive.

4 Replace logic board.  Retain customer’s SIMMs.

5 Replace power supply.

During system 

startup, disk ejects; 

display shows icon 

with blinking “X”

1 Replace disk with known-good system disk.

2 Clear parameter RAM.  Hold down <Command> <Option> <P> 

<R> during startup but before “Welcome To Macintosh” 

appears.

3 Replace floppy drive cable.

4 Replace floppy drive.

5 Replace logic board.  Retain customer’s SIMMs.