Grant wrote:

On Sun, 06 Mar 2011 23:56:56 -0500, "Michael A. Terrell" wrote:


wrote:

On Mar 6, 7:35 am, Bob Villa wrote:
This is common to almost all flat panel power supplies. There are 4
electrolytic capacitors (same physical size) on the switching PS.
There are 2) 1000uF X 10V and 2) 470uF X 15V that usually bulge and/or
fail. You shouldn't pay more than .25to .50c for each. (I used higher
voltage on the replacements of 1000x15 and 470x25)
Symptoms of failure a slow power-up or totally dead.

Look for highest ripple current rating. Nichicon HZ, HN, Panasonic FM


Going to a higher voltage usually raises the initial ESR. That kind
of defeats the purpose of repairing the equipment.

Opposite, higher voltage rating usually lowers ESR Check the datasheets.


It depends on the construction ot the Electrolytic. Some larger size
cans have four identical capacitors in parallel, inside the can to lower
the ESR. A lot don't.


--
You can't fix stupid. You can't even put a Band-Aid™ on it, because it's
Teflon coated.