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#4
07-14-2020, 06:31 AM
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The negative side of C1 will be one of the terminals you need to jump, so you can trace that point back to the socket to verify the orientation of the pins that way.
The jumper connects the AC bridge to the B- terminal for AC operation, so when you're done with the jumper, the neg term of C1 should be directly coupled to R140 (which is all I can see in the schematic snip). John 
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