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Just now getting back to this neat little TV after being busy for a while with other work. I checked out the heater voltage for the CRT, it is sitting at 6.19 volts. I used the TV for a little while just to check it out. After I turned it off I noticed a small splotch of colors on the screen that was sort of rectangular shaped and had a shimmering effect like a candle burning or a flag waving in the wind. I was very curios to what the HV was running at so I bought an old HV probe on ebay and when I got it I checked it for accuracy on another working TV that I knew the specification and it read right on. So I checked the Mitsubishi and it checked spot on 22.5 Kv as per the service manual. what would cause this strange effect on the screen after the set is powered off and is this harmful? I still need to correct the width deficiency but I'm guessing this isn't related although I have never seen this before on a TV so I don't know what to think.
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09-01-2020, 11:31 PM
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