Quote:
Originally Posted by Electronic M
They look to be drive bars. A ringing in the horizontal circuit that usually changes screen brightness by modulating the scan speed. You may be able to kill it with the horizontal drive control (width and linearity settings may also effect it). On some sets it is baked into the design or the aging of unobtainium parts.
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There is no horizontal drive control on this set
. On other sets I've worked on that include a horizontal drive control, adjusting it would effect a single bright white vertical line on the left side of the screen. I've not seen multiple dark lines like this before. What unobtainuim parts might create this effect? Are there troubleshooting step I can try to hone in on the source of the problem? I do have an entire spare chassis for this set from which I can borrow parts.