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Wes Harper wrote:
> >Thank you for the word of caution concerning the capacitors. I do make
> >sure that the capacitors are discharged whenever soldering them out before
> >testing.
I'm grateful as well for the SMPS page. but look at the caps.
they rate at 12
or maybe 20v peak. I aint afraid of getting zapped by the low
voltages in a
pc power supply. It aint like a tv that needs 17kv to run the
crt.
Since I am involved in the design of dc input pc power supplies,
I look for
anything I can find on SMPS or even linears. but since
replacements are out
in the market at 15$ for an AC PC power supply, why would anyone
want to
repair it? Is this some kind of oddball motherboard?
I dont have much hope that a SMPS can be repaired. most of the
damage which
I am aware of is from powerline surges, and there is no way of
tracking down
whether every component exposed to them still meets specs and
will be at all
reliable. That being said, the most feasible repair is the
replacement of
these large mfd caps needed to smooth output ripple and buy the
rest of the
SMPS time to ramp up for higher wattage.
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