Supro 1650R

chongmagic

chongmagic

Well-known member
A buddy of mine just fried his Supro 1650R amp. From initial viewing it looks like two resistors are toast.

1733015854136.png

1733015876105.png

The board is so toasted that I can't tell which resistors are bad.

Does anyone know if there is a PCB layout of this board?
 
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Try cleaning up the pcb as much as possible with tips and isopropyl, careful around the pads.
Maybe you can find some refdes.
If not, at least you can find the traces and see where the previous resistors connected and determine from there
Now, resistors no just blowup, usually. Something likely shorted causing an over current.
Once you find them on the schem, maybe post the relevant section or the whole thing. Don't just replace the resistors and fire it up.
 
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