My picture is back to normal now. too strange.
Matt
Matt Rossiter wrote:
> I'm not sure, but I think there must be an old capacitor in the batch that is
> slowly trying to form. I took measurements of the brightness this morning and
> notice that each day the voltage is going up more and more. I'm starting to
> get a faint picture at around 455 volts. - Which answers my last question in
> case you wanted to know.
>
> This might be something to keep in the back of your mind if you run across a
> problem like this after a cap kit. Question is - which capacitor would most
> likely be causing this problem? - that is, if it *is* a capacitor problem.
>
> Matt
>
> Matt Rossiter wrote:
>
> > Well, here's another one I can't seem to figure out. I decided to take
> > a perfectly working WG6100 and install a LV2000 kit along with new caps
> > and power transistors. Everything seems to work right, but I get no
> > picture now.
> >
> > Here's what I found so far.
> >
> > 1) LV2000 seems to be working ok. Before plugging all the connectors
> > in, I was getting +/- 26 volts
> > 2) Plugged everything now
> > 1) Spot killer light does not come on
> > 2) No fuses blow
> > 3) I get ~18.5 Kv at the anode - so high voltage is working
> > 4) Focus gets about 5Kv.
> > 5) +25v on pin1 and -25v on pin8 of the P900 on HV cage
> > 6) ~168v on pin 5 and about the same on red, blue and green guns
> > 7) Deflection chatter is present and there is a faint glow in the
> > CRT. Not as bright as I would suspect.
> >
> > 8) The only fishy thing I've found so far is the red wire coming
> > from P901 of the HV cage to the neck board is only getting about 60v
> > with brightness turned all the way down and about 160v with brightness
> > turned all the way up. The schematic says it should be about 544v.
> > Since it's coming from the brightness pot, it would make sense that the
> > problem might be the brightness. Just to verify though, could someone
> > confirm for me how high the brightness voltage should be before a
> > visible picture appears?
> >
> > If it isn't the brightness, I'm completely lost on this one. Geez, all
> > I did was install a cap kit. This monitor was perfectly fine before.
> >
> > Matt
> >
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Received on Mon Apr 15 11:29:10 2002
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