Apple M4753 manual

Troubleshooting Symptom Charts/Peripherals - 33

Cursor does not move when you are using mouse

Note: S-Video and ADB ports look the same; make sure you plug the mouse into the ADB port.

1Check mouse connection to ADB port.

2Try a known-good low-power mouse. If the known-good mouse works, clean mouse ball and inside of original mouse and retest. If original mouse still doesn’t work, replace it.

3Replace I/O logic board.

No response to any	1	Verify that computer is on.
key on keyboard	2	Reset the power manager (restart computer by holding down
	3	shift-FN-Control-power on).
		Check keyboard connection by disconnecting and reconnecting
	4	keyboard cables.
		Replace keyboard.
	5	Replace keyboard cable.
	6	Replace PMU card.
	7	Replace I/O logic board.