Motherboard

Before you begin, remove the following:

  • Main battery
  • I/O door
  • Top case
  • PSRAM expansion card (if present)
  • Cousin card
  • Daughterboard
  • Modem card (if present)

Caution: The PowerBook 1 65c/1 80c contains CMOS devices that are very susceptible to ESD damage.

Hard Drive Cable

Review the ESD precautions in Bulletins/Safety.

Caution: The hard drive, floppy drive, and thermistor cables are fragile and should be handled with care.

1 Lift the locking tabs and disconnect the floppy drive and thermistor cables.

2 Remove the hard drive cable.

Remove the two hex-head screws and lift the motherboard from the bottom case.

Replacement Note: To replace the insulator on the sound jack assembly, carefully peel off the original insulator. Remove the paper backing on the replacement insulator, and gently press it into place.

Replacement Caution: Make sure the replacement insulator sits in exactly the same position as the original insulator.

Hard Drive

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