🚀 go-pugleaf

Erik,

I had exactly they same thing happen to me with my television set.  My set got
shut down severely when lightning hit nearby.  After some time, I powered it
up again, and all seemed OK, except that it took several hours to DeGauss
properly.  Then a few months later, it started showing the symptoms you
describe.  Every so often, while watching TV, it would suddenly click off and
then click on again, as if the power had glitched or something.  Once in a
while, when I would power it on, it would only light the power indicator light
and make a little clicking noise but never activate the high voltage (and it
seems that the power indicator was not as bright as it should be).  Anyway,
these episodes got more frequent over the next few months until it finally
quit altogether.  Now, it never powers up, although the power indicator light
sort of lights up.

I plan to try fixing it one of these days if I get time.  I have repaired
several monitors in the lab.  In general, the most likely candidates are the
power transistors and power diodes.  What I have done in the past fairly
successfully is to take an OHM meter and measure the resistance accross all
diodes as well as the junctions of all the transistors.  If you find a junction
that has a fairly small resistance (say less than 10 ohms, regardless of
the orientation of the probes), then you have a dead device.  Replace it.

You might also check for internal fuses that are not customer accessible.
These are soldered in.  Sometimes, some power supply folks use low value
resistors as fuses.  Anyway, check the resistance of all these guys.  If the
resistance is excessive (indicating an open circuit), replace it.

The chance of your tube being damaged is quite slim.  I would guess that your
problem is a diode or transistor.  Give it a try -- you could save yourself
a ton of money!


 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 + Lief Sorensen         lief@hpfclm.fc.hp.com +         --\\\\o___           +
 + Hewlett Packard Co.                         +     --\\\\o___               +
 + Fort Collins, Colorado                      + --\\\\o___      Rev. 14:6-12 +
 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++