Infinity TSS-SUB4000 - Manual (Page 13)

NOTICE
The main power transformer (toroid) part# 150-r1107008 in the TSS-SUB4000 is
not mounted in the amplifier inside the amp cover, but mounted in the cabinet in a
separate location.
Replacement:
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. Instructions for woofer removal can be found on
the exploded view, page 7.
Troubleshooting:
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.
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TSS-SUB4000