24 volt dc radio repair

Thread Starter

drondia

Joined May 5, 2009
1
I'm trying to repair a 24 volt dc radio I took some pictures. I'm not a repair man, my repair man told me to send it back to the factory but its Hangsheng electronics co. ltd in China. I'd rather not send it back there.
I checked the capacitors and they seemed fine, neither did I find anything wrong with any resistors but I found the solder melted away from one of the legs of the "transformer?", could someone please tell a green horn if this is bad or if something else caused it to heat up and melt the solder.
Thank you very much.
 

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David Bridgen

Joined Feb 10, 2005
278
The coil wound on the toroidal core is just a choke to prevent ignition and other noise getting into the radio through the supply line.
It almost certainly has a capacitor associated with it, on the radio side of it, not the supply side, and it may be that which has developed a short.

But I see a fuse on the board. I would have thought that it would be the first thing in the supply line - before the filter, so maybe the above is wrong.
 
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