Went to start up my Raven yesterday & it wouldn't boot. No display & the solenoids don't reset.
In trying to fix my no sound issue, Pinsider Erak replaced the trimpot & LM338K on the PS & the big cap at the transformer panel. I've done the ground mods, replaced the bridge rectifiers & re-pinned most of the single-sided edge connectors. I was going to re-pin the MPU\driver board harness & if that didn't get the sound back, I was going to take the boards in to checked/repaired.
I checked the voltage at A1J1 & it was low, about 3.9v. I adjusted it to 4.95v but no change. In reading, it could be the MPU daughter board. I'll press on it tonight to see if anything happens. Is there something else I should look at? Somewhere else I should check the voltage? Maybe it's a fuse?