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I do not think there is any voltage that high in this little power supply. The power transformers are rated to 700 volts but I can't even see them coming anywhere near to that.
I did listen closely with an automotive stethoscope and it most certainly is coming from the transformer i mentioned...
I do not know what the voltages are on this board so I cannot say if there are high voltages, nor have I yes to figure out what is the hot side ground so that I could measure some things.
What would be considered high voltages?
If by coil you mean inductor, yes there is one. The issue only...
I finally got enough time to spend some time to fix this.
I replaced all the electrolytic capacitors with ones that I scavenged off other items in my scrape pile. I also replaced the fast recovery and glass passivated diodes for the transistor driver circuit and transistors and the bad power...
The picture that I posted was before I did any work the first time. The larger capacitor that was pointed out was already replaced, sorry I forgot to mention that. The other one that is by the terminals for the peltier was not replaced. It looks only very slightly bulged. I took it off and it...
Thanks for your suggestions.
By charge up behavior I assume that would exhibit itself by my meter showing rising resistance when the probes are applied. If that is so then all of the electrolytic capacitors show this behavior. The ceramic disk, polyester film and tantalums do not. In...
I will try to make a long story short.
I am trying to fix the board from a Franklin Chef FCW16T wine refrigerator.
The first fix which was a fuse and one of the large capacitors lasted for few years.
The second attempt was after the power shut off and came back on around four times with in...
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