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#1
10-03-2021, 12:53 AM
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Easy and intermediate cover your initial question. Hard is present in the video if I'm interpreting what I see correctly and it may eventually kill the set.
The dirty tuner issue should affect the picture regardless of the signal source. Rolling bars in the video that you don't see in person are called shutter bars....they are caused by the frequency and phase of the video camera shutter and the vertical sweep of the TV being out of sync. Tons of small lines are a related phenomenon called moire. This explanation is more funny than anything I can come up with. https://xkcd.com/1814/
__________________
Tom C. Zenith: The quality stays in EVEN after the name falls off! What I want. --> http://www.videokarma.org/showpost.p...62&postcount=4 
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#2
10-03-2021, 02:02 PM
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The main problem seems to be the hoz osc. It goes off freq
& then collapses. It may be a cold joint, dirty control or electrolytic. Hardest thing on these little sets is physical servicabillity. Numbers from Sams often dont match & the PCB's are usually only marked on the top. Add to that the crowding... Good news is CRT looks strong & should come out nice. Bad news is my SAMS manual is missing so you will have to find one to continue. 73 Zeno  LFOD !
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