Screen zipped down to dot of light in center and went blank. No audio either
The TV was on and quite suddenly the picture zipped down to a point of light in the center and went black. No audio at the same time. Unplugged for a period of time and plugged back in. Power light comes on, no picture or audio.
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2 things that will cause that vertical IC or Yoke! Listen to this one went on service call 2wks ago Customer had a 50 INCH1988 pioneer big screen replaced 3 capacitors resolder poor connections TV is now working like New ?
If your projection went down to a single dot in the center then you are most likely at the minimum replacing all three projection tubes due to that dot. It will leave a permanent mark in the center of each CRT and not repairable. The cost on that old set aren't worth it.