On Monday, March 28, 2011 5:51:41 PM UTC-7, Arfa Daily wrote:
"whit3rd" wrote in message
...
On Monday, March 28, 2011 4:15:45 AM UTC-7, Mike Tomlinson wrote:
In article
s.com, Sean Hamilton writes

Is it likely that bad solder joints would cause vertical foldover in a
mid-90s CRT television?

Yes, but it's more likely to be a bad cap.

Visual inspection is not enough. You need an ESR meter.

Maybe not; the ESR issues crop up mainly in high-performance
low voltage power supplies

I think you are missing the point of what he was saying regarding ESR. This
parameter is a valid test of the 'goodness' of any electrolytic capacitor,

A test, yes; but not a complete test. The ESR of a 10uF capacitor can be
good, but it won't do the work of a 100 uF capacitor. A combination
of ESR and capacitor-meter testing is better, and a test at the
frequency of interest for ripple reduction is better still.

I wouldn't bother with any of that parameter testing, though.
If you suspect the 10-year-old capacitor, replace it. You'd possibly have to
desolder to test it anyhow, spend the eighty-five cents to put in a new
one.