Mitsubishi WS-65819-blown fuses after stk repair help!!

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Barry O
Mitsubishi WS-65819-blown fuses after stk repair help!!

I replaced the stk's, turned on the tv and the green power light turns on and then off. The stk's have been replaced for a second time and the same thing happened again. F9A04 and F9A05 are the fuses that failed after turning on the tv. Does anyone know why this is happening and what can I do to fix the tv?  ANY HELP/ADVICE WOULD BE APPRECIATED!! Thanks.

Larry Dillon
You should disconnect the STK

You should disconnect the STK power connections and measure the plus and the minus 24 volt lines. You could have a bad diode or capacitor in that circuit. Also double check the soldering on the IC's and make sure there are no shorts across any of the pins on the new IC's.

 

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