Power-on pads on logic board

With the top case removed, the power-on button is disconnected. Instead of having to reconnect the top case to turn on the system, there are two pads on the logic board when shorted together (with a tool like the head of a flat blade screwdriver) is the equivalent to pushing the power-on button.

These pads are located about 5cm left of the back left corner of the optical drive, 1-1/2cm above the notch for the top case flex cable. It is marked POWER BUTTON. The pads are separated with a vertical white line.

General Information

PowerBook G4 (17-inch) Troubleshooting - 9

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Apple Powerbank G4 manual Power-on pads on logic board