Hi,
I've been using an SEX v 2.1 with a C4s upgrade for several years and it has been working without any trouble. Recently, the volume on one side dropped off a lot. Its barely audible. Switching inputs, speakers and tubes made no difference.
Voltages on the C4s board 0A 354, 1A 67, and 0B 288, 1B 308
A5 is 67, A6 2.2, B5 290, B6 9.4. The LEDs on 1 side of the board are not lit.
Any suggestions on how to fix it? I suspect that the C4s is the trouble, is that correct?
Thanks,
Pat