Jeff wrote:
The "shotgun" approach has always worked for me in the past, but I just can't get this one going. I don't have a schematic for it either. I can provide good photos of both sides of the board, or send it to somebody and offer to pay you for your time if you can take a look at it for me.
Thanks and Happy Holidays,
Jeff
The Most probable failure items:
fuses
electrolytic caps
trim pots
diodes
look for swelled electrolytic caps,
visual look or smell of burned diodes or resistors
use a meter to check diodes
check pot resistance readings
turn the trim pots, then back to original position.
check pot resistance again.