User Guide

Power Mac G4 Cube Troubleshooting - 11
Symptom Charts
is a customer-installable part in the CIP program.
• If the serial number shows a year and work week code of 040 or later (for example
SG 040 MW6JDZ), go to the next step.
8. Remove the top plate assembly and check the proximity switch plate that is secured to
the power button board on the underside of the top plate. If the plate on the board has
a notch or if tape is secured under the proximity switch plate, go to the last step.
Otherwise, go to the next step.
9. Remove the two Torx screws that secure the proximity switch plate to the board and
top plate assembly.
Run a strip of Kapton tape (32 mm by 3 mm) near the rounded edge of the power
button board.
Install the proximity switch plate and press it against the flat edge of the board.
Install the two screws half way in. Then maintain light pressure on the plate so it
stays level end-to-end as you tighten the screws.
10. Check the underside of the top plate assembly for the EMI gasket.
If the top plate assembly is marked with part number 805-2807, either replace the top
plate or replace the EMI gasket.