Specifications

Troubleshooting Symptom Charts/Peripheral (Continued) - 14
Peripheral
(Continued)
No response to any
key on the keyboard
1 Verify that keyboard is connected to ADB port.
2 Replace keyboard cable.
3 Replace keyboard.
4 Replace logic board. Retain customer’s SIMMs.
Cursor does not move 1 Reboot computer.
2 Verify that mouse is connected properly.
3 Clear parameter RAM. Hold down <Command> <Option>
<P><R> during startup but before Welcome to Macintosh
appears.
4 If mouse was connected to keyboard, connect mouse to
computer ADB port instead. If mouse works, replace
keyboard.
5 If mouse does not work in any ADB port on computer, replace
mouse.
6 Replace logic board. Retain customer’s SIMMs.