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P52926 If this is the correct model number...you have a bad resistor that feeds the voltage to the filaments of the tubes. But first check to see if there is an orange glow in each tube. This will be the problem if there is no glow. The glow should be see located at the socket where the circuit board is. Otherwise you could have a bad vertical deflection circuit if there is a glow
Does it make a slight popping or cracking sound ? If so remove the back cover and see if the flyback transformer shows any sign of burning or arcing. It is located on the far rt. hand rear side with a red wire comming out of the top and a black one behind and lower than the red one.
this sounds like the typical bad fly-back transformer that is also known as the high voltage transformer, n=-Not really a repair for a novice so unless you know all of the safety notices with this set please do not attempt this repair as why save 100 bucks for something that could seriously kill you!!!!!
Chirping is usually a problem in 2 areas of
this unit. 1st check 3 legged regultor on
the right side of the chassis, also 2 small transisters and 2 resisters near and in front of the regulator. RCA has a kit for this problem, the second is check the horizontal
output transister is on a separate heat sink
along side of the Flyback Transformer, it shorts and pulls down the regulator power