Apple performa 400 series Servicehandbuch

 

 Troubleshooting

Symptom Charts/Peripherals - 10

 

Cursor moves, but 

clicking mouse 

button has no effect

1 Replace mouse.

2 Replace logic board. Retain customer’s SIMMs.

3 If mouse was connected to keyboard, connect mouse to rear 

ADB port and disconnect keyboard. If mouse works, replace 

keyboard.

4 If mouse does not work in any ADB port, replace mouse.

Double-click doesn’t 

open application, 

disk, or server

1 Remove extra system files on hard drive.

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

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

appears. 

3 If mouse was connected to keyboard, connect mouse to rear 

ADB port and disconnect keyboard. If mouse works, replace 

keyboard.

4 If mouse does not work in any ADB port, replace mouse.

5 Replace logic board. Retain customer’s SIMMs.