It would help us help you if you shared a reasonable portion of the schem around R50 and R51Yes have a schematic and r50, r51 get hot enough to take the skin right off your finger.
My next question is are R50, R51 being used like emitter resistors and if they are do I need to cut the trace, and does anyone have a photo of where these two are on the board?
Look at post #6 and thanks.It would help us help you if you shared a reasonable portion of the schem around R50 and R51
Agree with Don, you have something downstream in backwards. There should be little to no heat, this is a preamp.Those resistors are in parallel with the regulators. There is a downstream fault. My guess is either a chip or electrolytic cap(s) in backwards. There is potential danger if it's a cap as it could become a projectile if allowed to fail. To troubleshoot use the nose and index finger to find something getting hot. I
That will do it too if it was shorted...How about just a BAD P/S cap 2200uf 50v.
Usually the smaller electrolytic caps open up when they fail. Of course if one was installed backwards it will likely short if allowed to run long enough.How about just a BAD P/S cap 2200uf 50v.
Usually the smaller electrolytic caps open up when they fail. Of course if one was installed backwards it will likely short if allowed to run long enough.
Yes have a schematic and r50, r51 get hot enough to take the skin right off your finger.
My next question is are R50, R51 being used like emitter resistors and if they are do I need to cut the trace, and does anyone have a photo of where these two are on the board?