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Well... I dont know much about Admiral, but.... These old Color sets are for the most part pretty generic...
Do you have high voltage now? There is a jumper on your schematic to check the H.O. current, (which will of course be too high if the plate is too hot, but I would see how much it is). I would check that. These Horiz. sections are tuned much like transmitters. If they're out of tune, the HO tube draws too much current. There should be a "horizontal effeciency coil" somewhere. On the other hand, this was a sudden failure?
Got a bit of the schematic showing the HO, damper, HV rect., 6bk4, etc?
John
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