blowing main fuse on Peavey Valve King 112 50
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blowing main fuse on Peavey Valve King 112 50
A friend brought me a Peavy valve King to check out for him it had no power. the first thing I did is checked the fuse and it was blown, I pulled the power tubes and still blew main 3A fuse. I checked all diodes with a meter in Diode mode the D206, D207, D208, D209 1N4003 Diodes ( all are still soldered to the board) and I am getting a reading on both sides of the diodes none of the other diodes check this way would you say these are bad ones?
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Re: blowing main fuse on Peavey Valve King 112 50
It sounds to me like a good place to start.
As unpleasant as it is on those, there's not much you can do to them without pulling the board anyhow, so I would pull it, unsolder them, and check them out of circuit.
The one I worked on (212 but very similar) had an OP tube (one of the original Ruby's) that would short after a half hour or so of runinng. Probably not the trouble on yours, but just somethihg to consider.
BTW, Peavey has GREAT support, and any weekday i've tried to get a schematic from them, I usually have it in my inbox in less than an hour.
Good luck!
As unpleasant as it is on those, there's not much you can do to them without pulling the board anyhow, so I would pull it, unsolder them, and check them out of circuit.
The one I worked on (212 but very similar) had an OP tube (one of the original Ruby's) that would short after a half hour or so of runinng. Probably not the trouble on yours, but just somethihg to consider.
BTW, Peavey has GREAT support, and any weekday i've tried to get a schematic from them, I usually have it in my inbox in less than an hour.

Good luck!