Apple quadra.lc 630.performa 640 Service Manual

 

 Troubleshooting

Symptom Charts/Peripheral - 16

 

No response to any 

key on keyboard

1 Make sure System is version 7.1.2 (or later). 

2 Check keyboard connection to ADB port.

3 Replace keyboard.

4 Reseat logic board.  

5 Replace logic board.  Retain customer’s  SIMMs.

Known-good 

ImageWriter or 

ImageWriter II does 

not print

1 Make sure that Chooser and Control Panel settings are 

correct.

2 Make sure System is version 7.1.2 (or later).

3 Check printer DIP switches.

4 Replace printer interface cable.

5 Replace logic board.  Retain customer’s SIMMs.