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Originally Posted by qusp
 yep, higher capacitance and voltage rating in power supply reservoir caps is more than ok, in most cases its actually preferred and often somewhere to start if you were going to upgrade a power supply.
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Similarly, there are a lot of arguments wrt whether a linear regulator should be immediately followed by a large reservoir cap that will ultimately swamp the performance of the regultor, or by a small cap that will allow the regulator to do it's thing the way it was designed to.
There are pros and cons for both.
If this is a linear supply, and you can trace it out and guess at the load, you can simulate it in Duncan Amps free power supply simulator, and that will give you a pretty good idea of what your component changes will do.
Oh, and there's a lot of talk about capacitors here, but it's just as likely that a resistor has quietly fused - which may just make it look brownish on the outside - or a transistor has gone out.
But yes, if you can replace every component on the board for $6 from mouser, go for it.
