Take Apart Logic Board - 64
3 Carefully disconnect the
microphone cable from
the logic board.
4 Disconnect the on/off
board (or modem board,
if installed).
5 Disconnect the DRAM
expansion card (if
installed).
Replacement Note: When
replacing the logic board,
keep in mind that the
PowerBook Duo won’t work
unless an on/off board or a
modem card is connected to
the logic board.
On/Off Board
DRAM
Expansion Card
Microphone Cable