Yoda wrote: ↑Fri Jul 31, 2026 3:02 am
Yes I was referring to the voltages on the source pins, man you guys are good, I had no idea that documentation even existed for the loop! Very nice.
Also I moved the B+ supply to the PI power supply node and it bumped up the B+ on the effects loop board to 311v. Much better but still no audio.
Yes the bypass which seems to work because when I bypass the loop the amp is significantly louder. When I bypass the loop on my 1987X there is hardly a change in volume unless the amp is being overdriven hard.
I meant to send my prior message to Yoda.
" I would request a replacement from the dealer.
Let us know how to goes "
Yoda wrote: ↑Fri Jul 31, 2026 3:02 am
Yes I was referring to the voltages on the source pins, man you guys are good, I had no idea that documentation even existed for the loop! Very nice.
Also I moved the B+ supply to the PI power supply node and it bumped up the B+ on the effects loop board to 311v. Much better but still no audio.
Yes the bypass which seems to work because when I bypass the loop the amp is significantly louder. When I bypass the loop on my 1987X there is hardly a change in volume unless the amp is being overdriven hard.
I meant to send my prior message to Yoda.
" I would request a replacement from the dealer.
Let us know how to goes "
Cheers
G
Mojotone is sending me a new replacement board but they want me to destroy the defective one so I won’t get a chance to try replacing the MOSFETs and bring it back to life.
The replacement loop arrived from Mojotone today and after installing everything works and sounds great, it was definitely a bad board! Already got my refund from the seller too.
Thanks everyone for the help!
