If you have 0v across the speaker terminals (Q109, Q111 and D104 out of the circuit), connect a jumper between the collector and the emitter of Q122. Does that drive full negative rail to the speaker terminals on that channel?
Q123 may need to be lifted to ensure that it's not damaged.
Q123 may need to be lifted to ensure that it's not damaged.
An externally hosted image should be here but it was not working when we last tested it.
sent from a IRFZ48N
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