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you can ensure the connection and Heater's voltage, start from Flyback transformer ( Heater Pin) to Heater of the CRT tube, whether exist and normal ( Include : check Resistor in Heater area), perhaps there is lost connection for a while and connect gain. There should be 5 Volt AC available. otherwise check the socket of CRT Tube, unplug and clean it. If there is any question you can ask me and clarification with detail result from my solution.
I would first be suspicious of the flyback transformer if the HOT was shorted. I have also found many Sonys with shorted video output i.c. s which are on the CRT pc board. I do not recall if this model uses one output i.c. or three separate ones. Either way you can unplug the cabling feeding the crt board and try powering the set again. If the high voltage comes up you likely have a shorted video i.c. (The i.c. s short most likely because the crt momentarily arcs.) If this test does not result in a clearing of the over current problem I would, as I said initially, suspect the flyback. There are other possible causes, but those are the two I have seen most often.
it will as long as the input output rating is the same and the resistance values are the same. WARNING!!!!! the flyback is charged with high voltage. must use extreme caution when removing and installing. please rate this solution
It is possible to repair it yourself. Let me caution you though. There are a number of generic manufacturers that sell replacement flyback transformers at less $$ than the original. The shop is most likety using the factory original which runs in the $75 range. Figuring on a typical labor rate of $125 for a 32" set gets you to the $200 figure. Realize also, that the $200 will include any other supportive parts that may be required in all probability as well as at least a 90 day guarantee.
Dan
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