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02-15-2022, 03:42 PM
Doohickey Doohickey is offline
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I have a used Panasonic HS960, it has great image quality with the TBC off. With the TBC on, it introduces light and dark rolling horizontal "bars", which also vary and flicker based on rest of the image. Some tapes don't show it at all, on some it's really bad. The tapes are fine in a JVC, and are also fine with the TBC off.

I replaced some of the caps on the TBC sub-board (the ones I had replacements on-hand for), which didn't change anything. Has anyone seen this before? Which caps should I start with?

Video sample attached, it's low-quality MP4/h264, but it shows the problem well.

I'm thinking i'll start with the 1uf non-polarized electrolytic which is on the TBC card, if that doesn't change anything, i'll just replace every cap that looks somewhat related to video output or power... But before I do that, if anyone has some more specific knowledge, that'd be very helpful.

Thanks in advance!

Attached Files
File Type: mp4 TBC_problem_HS960.mp4 (3.78 MB, 9 downloads)
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02-15-2022, 10:57 PM
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lordsmurf lordsmurf is offline
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Seen this on AG-1980. You can't play caps whack-a-mole on these decks. Replace them all.

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