I did find one of those sets (JVC 25") that was from the late 80's early 90s that had a bad switching supply. What was JVC thinking when they came up with that idea? To run a 100khz single-ended switcher to run a TV set let alone right next to the vid/IF section? Well I did get the set working and made a sweet penny on the sale, owner was still using it until 2004 when I last saw it.
Will give credit the set was fake silver and plastic but a wood cabinet under the wallpaper and a real tempered faceplate over the CRT front.
Win some and loose some I guess

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