31 Jan
2006
31 Jan
'06
1:36 p.m.
An ESR meter is a handy device. <URL:
http://clientes.netvisao.pt/greenpal/evb1.htm >. In addition to this,
you should still use a VOM to check for a shorted cap, and a capacitance
meter to verify the value. The ESR meter is nice because it works
in-circuit.
--jc
Richard wrote:
In article <200601311445.58666.rtellason at
blazenet.net>,
"Roy J. Tellason" <rtellason at blazenet.net> writes:
On Tuesday 31 January 2006 01:55 pm, Richard
wrote:
Other than checking for obvious shorts and opens, what's a good way to
check a (safely discharged) capacitor for such problems?
I do have one monitor. I haven't tried to
power it up, but written on the
case is the word "DIM", presumably identifying a failure in the monitor
somewhere. I've never repaired monitors, so I'm not sure what a dim image
is suppose to indicate. Failing HV drive circuitry?
Power supply problems more likely than anything else. Maybe caused by weak
capacitors, as those will age more than any other part. Other failure modes
will all (mostly) cause an outright failure.