Epiphone E-60

[CJ]

never seen one of these, needed a filter cap re-soldered, sound is marginal at best,

 

[CJ]

cheap solid state model but it does have a 10" speaker,

 

[CJ]

no schematic online so here it is
weird output stage, and driver for that matter,

bias control works but puts the bottom transistor into cutoff when set for best sound,

and one of the driver transistors works while idle bias is low,

vol and tone does pretty much the same thing as the guitar controls,

 

[CJ]

did not notice that there is already a schemo in the back of the amp on the floor,

tremelo is not used on this amp,

 

[zamproject]

did not notice that there is already a schemo in the back of the amp on the floor,

...great move from some designer/manufacturer

Once I was supposed to repair various issue on a massive Eminent organ (grand theatre 2500 IIRC) with kind of sweat...especially once I open the back, with literally two layer of metal frame on hinge (about 2m square each) dozens and dozens pcb...hundreds meters of wire ... total collapse in my mind
Then, after reassembling myself and trying to elaborate a strategy to handle this mess, I saw a stapled pocket on the inner side with a binder slipped in. everything was there !!! what a relief !