Apple quadra 900.950.ws 95 Manuales De Servicio

 

 Troubleshooting

General - 9

 

Internal floppy drive 

does not operate

1 Verify that keyswitch is not set to secure.

2 Replace disk with known-good disk.

3 Replace floppy drive cable.

4 Replace internal floppy drive.

5 Replace logic board. Retain customer's SIMMs.

6 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 internal floppy drive.

5 Replace logic board. Retain customer's SIMMs.