I have an Chinese amplifier brand audessb with transceiver d1047 and the draybe c9014 the flaw that presents is that after changing the audio transistors one channel sounds good and the other channel sounds distorted at half of the sound and checked all the transistors resistance voltage of the source is ok the bias voltage 0.50 and has changed potentiometer and input capacitors and there is still a fault that gives me a clue to see if I isolate this fault thanks