In Reply to: Capacitor replacement advice anyone? posted by DRam on November 29, 2016 at 18:39:28:
I would agree with sony6060 that the power supply would be the place to start.
"And how to tell which ones need to be replaced? All of them?"
The only reliable way to know which caps need replacement, other than obvious ones that might be bulging or leaking, is to use an ESR meter. I've had good luck with my Blue ESR meter, but whether it's worth the investment for the average hobbyist is questionable.
So, without actually being able to test the caps, the only truly safe way would be to replace all of them, which can be a pain.
Be advised that although you called your Denon an "amp", a search revealed to me that it is actually a receiver, meaning it has an FM tuner in it. If the capacitors in the tuner section are replaced, the unit will likely require realignment.
As to the re-soldering question, I'd suggest looking at a lot of youtube videos on soldering. You should get a good idea from those as to what a quality joint should look like. Then re-solder any that don't look that way.
Good luck with it.
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Follow Ups
- "where to start?" - 1973shovel 04:38:13 11/30/16 (0)