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HOW CAN FIX MY JVC TV AV-K21T?

my set when i switch on the red led blinks and goes off,i have checked the power supply and found ,fuse intact,replaced regulator STR6654,no change.when i measure voltage on the primary im getting 350v.chopper is producing a hissing sound.no 5v,12v and B+,what do i change since i have checked all parts in the primary power supply.please assist.

PAUL
August 2007
try checking the H-out transistor it may be shorted that's why it produce a hissing sound, sometimes it has a open resistor going to the horizontal section of your television...

roy
August 2007
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