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Yamaha p2050 Amp - 1 ch needs high input to send audio out
Old 24th October 2019
Here for the gear

Yamaha p2050 Amp - 1 ch needs high input to send audio out

I wonder if anyone can suggest what MIGHT be the simple fix for my very old Yamaha p2050 Amp...

Basically 1 channel won't pass audio to it's output to the speaker unless I send a very high level to it's input.. and then it suddenly pops out the audio, sometimes a bit scratchy at first till I feed it a really high input level.

I flooded the volume dial with pot cleaner... made a slight improvement but not a full fix. THANKS for any tips!
Old 27th October 2019
Lives for gear
Pro Sound Guy's Avatar

Looking at some pics I can see you have switches and selector switches on the back of that amp. Make sure you exercise those back and forth many times in case oxidation is the issue. If you can pop the lid and get in there with some deoxit contact cleaner all the better.
Old 27th October 2019
Here for the gear

Thx, will do!
Old 4 weeks ago
Here for the gear

Hi well I flooded the back switches with pot cleaner and exercised them and that fixed it!!! Thx!!!!
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