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Hi, I am new tio the group, i am a trumpet player in a band and also an electronics engineer. Does anyone have a circuit of a Carsbro GRX7 mixer amp. I did a very silly thing yesterday in haste. I have one of these amps and because of lack of use the pots were all dirty. I cleaned all of these, took me ages. However, silly me, plugged the preamp board into the main amp board. What I did not realise is that the 4 or 5 way plug that presumably pick up the power from the main board was able to go in both ways, it should only go in one way. You guessed it. I have a visble resistor and capacitor blown. I have no idea of the value or if there is any other damage. I circuit and a new pair of glasses would help me greatly.
Regards
Roger Luke
Regards
Roger Luke