Bose Lifestyle PS 18 - Bass Module Disassembly Procedures; 1. Rear Cover Removal; 2. Amp Module Removal; 3. Amplifier Module Cover Removal

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PS18/28/48 Service Manual
1. Rear Cover Removal
Remove four screws - pull off cover
2. Amp Module Removal
Remove six screws - pull off amp module -
unplug woofer harness
3. Amplifier Module Cover Removal
Remove 12 screws
4. Power PCB Removal
Disconnect J103, lift up PCB
Bass Module Disassembly Procedures