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roland jc 160 guitar amplifier

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drklondon

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roland jc 160

helloI would like some help
I have this amplifier wich is two chanels (with the different that the second has got distorsion and I can switch on the chorus effect)

1 ch in two speakers; 2nd ch in others two
when I play the the sound comes out from all 4

the problem is:

the 1st ch. transistors (2sd425) become hotter ( lot!) the the others chanel, wherever I plug the guitar.


As well there is a noise when I play with the effect, like a breathe. is there any relation?

thank you very much

Gigi
 

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