I recently fried an older 1531 controller. Wiring error resulting in a nice puff of smoke and melted insulation, etc. Is it possible to get a replacement circuit board for the unit. if so, who would have it. I suspect it's not possible but I am told that I have the nice cast metal body version instead of the current plastic one. Hence the desire to repair it.
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Can you post some photos of the damage? If board replacement is not an option, I'd think component level replacement if we can figure out what released the magic smoke.
Photo 1 shows the bottom of the PWB with a paper clip pointing to the offending wire which overheated with the insulation actually fuzing to the plastic bottom cover of the unit. Photo 2 shows the top of the PWB with the same paper clip pointing to the same offending wire as it passes through the board to attach to the bottom of the selector switch. Not sure why it had to pass through the board as it could have gotten there directly.
Also not sure why i got 3 photos attached instead of 2
Your PCB traces look just fine.
I would guess that it would be easy to replace the wire, then test it out and go from there.
If the relay is fritzed, it can be replaced. I recall either Digikey or Mouser stocks them.
Rod
thanks for the help and the idea to replace the relay. now that i look at the circuit a little more closely, i can replace the relay, the regulator and the caps and have essentially a new circuit for a few bucks.
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