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Hi, I am looking at a friend's SVT-4, it plays fine and then suddenly the peak light (located by the gain knob) goes red and stays red and the volume is very low, almost non existent, even with gain and master dimed. When I put a cable into some of the jacks, the sound comes back and the peak light goes off. Usually when I put a cable half way (only half way for some reason) into the footswitch (Mute/Graphic EQ) jack, it goes away.
I am assuming this is a problem with a jack or fx loop. I have cleaned the jacks extensively with electronics cleaner and this helped, but the problem still happens. I am thinking it may be either a bad jack or bad solder joint (I have looked over the boards and don't see anything suspicious looking). Any suggestion what I try first or anyone know if it may be something else. Thank you!
I am assuming this is a problem with a jack or fx loop. I have cleaned the jacks extensively with electronics cleaner and this helped, but the problem still happens. I am thinking it may be either a bad jack or bad solder joint (I have looked over the boards and don't see anything suspicious looking). Any suggestion what I try first or anyone know if it may be something else. Thank you!
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