The bottom part about 1/8 of the total is out of proportion (compressed
down).
The rest of the image is OK.

I have checked for cold joints and bad caps, could have missed a bad
cap inside a hard to find spot.

Has anyone seen that before on this model ?

Thanks

mikercana1 wrote:
The bottom part about 1/8 of the total is out of proportion (compressed
down).
The rest of the image is OK.

I have checked for cold joints and bad caps, could have missed a bad
cap inside a hard to find spot.

Has anyone seen that before on this model ?

Thanks

I don't know about this paticular model, but compression at the bottom
of the screen is caused by the vertical amplifier running out of
headroom, or insufficient current to the vertical deflection windings
of the yoke. Either a low supply voltage to the vertical output stage,
or a capacitor that has decreased somewhat in value is my first bet. I
would start with the capacitor that is in series with the vertical
windings on the yoke. Just parallel an approximately equal value
capacitor, both in capacitance and working voltage with the output
capacitor and see if that helps.

H. R. (Bob) Hofmann

The most common problem in these monitors are caps going high in ESR, or
becoming thermo sensitive. It takes experience and the proper tools to
locate these, and change them. You will need an ESR and cap testing meter,
and a lot of time to start with. If the problem gets more involved, you will
need the service manual.

Have you considered to get a new monitor???

--

JANA
_____


"mikercana1" wrote in message
oups.com...
The bottom part about 1/8 of the total is out of proportion (compressed
down).
The rest of the image is OK.

I have checked for cold joints and bad caps, could have missed a bad
cap inside a hard to find spot.

Has anyone seen that before on this model ?

Thanks