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Default philips 14gr1236 -- flyback keeps blowing

tv was humming when it come for the first time. I cheked psuply,
capacitors, diodos , chokes near flyback, and evertything seems ok. I
checked diodes for leaking, but they tested ok.
so i replaced the flyback, it had shorted pins 1-10. the new one
at2079, lasted 1 second and blows again. Pins 1-10 shorted again. I
checked evertything again. What am i missing? I thought flyback was
defective so i try with a hr7527, but same thing. crt? socket?
any ideas!?
thanks?

 
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