Hi!
I'm wondering about this pic:
If that extra bright vertical area in the center of the picture is not from the camera
then there may be some timing issue going on with the damper circuit.
But right now I don't think you should do anything about it......
Removal of the 1St Chroma Bandpass Amp Tube V19 Could mean the bars
actually do originate somewhere close. If you look at the Oscilloscope pics
on the schematic of the plate of V19, (Pin 6) you can see a burst group of spikes
for each scan line, This could be your bars if possibly the Burst Osc is not
at the correct frequency, Or this circuit, or any circuit in this video, or Color
processing area is not operating correctly.
You will have to start by checking voltages on each of these tubes......
Put it on a post Pin X, Expected Reading, Actual Reading. Lets All See them.
The Specs .pdf posted a few pages back of one of your meters, and at this
point I'm not sure which, or how many you have, but anyway one of the
meters said it is made to operate within 40 - 4Khz when measuring AC,
I believe..... So be aware the Horiz. circuit is 15Khz, and the color circuit
is some digits above 3Mhz, A question for Cheap-O-Meter accuracy....?
Same for clamp AC Current meters..... Is the clamp picking up 15Khz High
voltage stuff? is it effecting any readings...?
Not sure about the width of the bars makes a big deal not or not. Definitely
could be a decaying "ring" off the Horiz circuit making it's way to the video
or color circuit somehow..... Not ready to put any money on it today...
You have your hands full here..... I'm starting to like the fire idea you floated
a day or two ago.
You know Monday is a holiday.... You might just wanna drag this thing out to
the field behind your house, set it on fire, bring out some Marsh Mellows, a
few hot dogs, and make an afternoon of it.
Post a few pics so we can all celebrate the demise of this thing.....
end transmission....
.