At 10:18 AM 1/9/2013, you wrote:
I need to check that, it seems to be generating its own heat, why do you ask, was ready to order a replacement but if it's just a dry joint can try re-soldering. Doesn't look dry.
The transformer and the voltage regulator, the part with the tab we measured 12V on, will both get warm. At this point the problem would seem to be somewhere among all the small parts at the rear of the board. This is the part where it's easy for me as I've got all the right tools.
You have a few choices, you can inspect all of those parts and re-solder any that look suspect. Small to very small iron and either a drop of electronics flux and heat or very small wire solder. I would use .010 or .015 inch diameter solder and the smallest tip I have for my iron or maybe just flux and the hot air pen.
Alternatively, you can let it got warm and stop working and then try cooling off a tiny section of the board at a time. They make aerosol cans of stuff for cooling off electronics or a Q-tip just damp with a bit of alcohol might work. And properly, you should turn the machine off, cool down something and then turn it back on to check.
Ira
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