To keep the circuit “live” while exposing the amplifier
components, the amplifier cannot completely be removed and powered up outside
the cabinet due to the power connections to the externally mounted transformer.
Instead, an alternate method is to leave the amp cover in place and remove the
four Phillips screws holding the amp ass’y to the amp cover. Then the amplifier
can be partially removed for access, while maintaining the power connections.
Unplugging the LED connection (red/black wires) at the PCB plug will allow the
amp to be removed even further.
To replace the power transformer, it is necessary to remove
the woofer from the cabinet. The mounting bolt and transformer itself is
mounted on an internal brace; both are accessible through the woofer opening.
Power Amp schematic and PWB {CLICK ON THE PICTURES TO MAGNIFY}
