Re: Electrohome G08 Problem

I'm still having a little trouble. This monitor just does not want to show me
any love.
Does anyone know what the values are for R636, R637, R736, and R737?

The schematics show 100ohms, but the parts list show 1k. I replaced the the
original
resistors with 100ohm 1/4w and just referred to the schematics for the values,
but if
the schematics are wrong then I may have found my problem.

Thanks....

Matt

Rodger Boots wrote:

> High voltage is shutting down BECAUSE there is no deflection chatter. Do you
> have anything on the output transistors where they drive the yoke? If you do
> then either the yoke isn't making the connection OR isn't being returned to
> ground through the sense resistors. If you don't have a signal at the output
> transistors then you'll have to backtrack to find where you're losing it.
>
> Matt Rossiter wrote:
>
> > I still can't figure out this monitor.
> >
> > 1) I replaced the chip on the deflection board - no luck.
> > 2) I've gone through this whole monitor and checked out all the
> > voltages. They're all good except three.
> >
> > Pins 1&2 on P900 of the High voltage unit. Pin 1 should be 2.8VAC and
> > pin 2 should be 3.5 VAC.
> > I get a zero reading on the oscilloscope
> >
> > Pin 10 on the high voltage unit for the Variable Gain control is also 0,
> >
> > but I figured it's because it's supposed to be (theoretically).
> >
> > Everything else looks good.
> >
> > When I power the monitor up (plugged into a working space fury) the high
> >
> > voltage turns on for a second but then shuts off. I hear no deflection
> > chatter. No fuses are blowing, no parts are burning up, the. Only
> > sound I hear is the fan. I even resoldered any pins that *could* be
> > bad.
> >
> > I could sure use some ideas at this point.
> >
> > Matt
> >
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Received on Tue May 15 11:50:19 2001