Bose Companion 5 Service Manual page 18

DISASSEMBLY PROCEDURES
1.5 Remove the four 6-32 TORX screws that
holds the heatsink bracket in place.
1.6 Separate the heatsink, heatsink bracket
and DSP board.
2. I/O Board Removal
2.1 Use a small flat-head screw driver to
pull the Bass control off of the rear cabinet.
2.2 Remove the three Phillips-head screws
that secure the I/O board in place.
2.3 Remove the plastic bracket that secures
the I/O board in place.
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