Monomachine mk1 main outs problem

Hi Folks!

Recently, a monomachine was brought to me for repair, it had a problem - the left channel played much quieter than the right one. I tried to find other users topics with the same problem, but all the topics with the same symptoms ended up with nothing…
In my case culprit for everything is a small transistor, it turned out to be broken through to “base - collector” output … it’s marked “3gw” aka BC857C.

By the way, i initially did not correctly diagnose the problem, the sound when only one mono-jack was connected was in both channels (left / right main outs), it should have been only in left, but it also was in the right :slight_smile:

I hope one day this information can be useful to someone…