Reply #2 on: January 28, 2014, 03:03:33 AM
First, I don't have a S.E.X. but all the BH C4S boards have some things in common. I would say that the negative voltage is linked to a ground wire not (or not correctly) connected. Check the black wires across the C4S, and all the black wires that are connected back from the board. Also check the middle legs of the transistors, there aren't easy to solder correctly.
« Last Edit: January 28, 2014, 03:06:54 AM by ffivaz »
Fabien Fivaz
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