MITSUBISHI WS-55807 GREEN LIGHT ON-NO PIC/SOUND

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TECH421
MITSUBISHI WS-55807 GREEN LIGHT ON-NO PIC/SOUND
MY SET STARTING TAKING LONGER AND LONGER TO TURN ON AND EVENTUALLY TOOK A CRAP. WHEN I PLUG IT IN, THE GREEN LIGHT FLASHES THREE TIMES. WHEN I TURN IT ON, THE GREEN LIGHT STAYS ON BUT NOTHING HAPPENS EXCEPT A LITTLE WHITE NOISE FROM THE SPEAKER IF I TURN IT UP LOUD.
ERROR CODE 12 MEANING...NO ERROR. I HAVE CHECKED ALL F9A0X FUSES AND ELIMINATED EVERYTHING ON THE POWER BOARD BY SWAPPING OUT WITH ANOTHER (WORKING) BOARD. CAN SEE COILS INSIDE CRTS GLOWING ORANGE BUT NOT PROJECTING. VOLTAGE IS 37V AT F9D00 (GLASS TUBE FUSE ON MAIN BOARD), ON THE WORKING WS-55807 TV IT IS BETWEEN 7 AND 13V AT F9D00. HV POWER SUPPLY HAS ALSO CHECKED GOOD. INSPECTED ALL BOARDS AND FOUND NO OBVIOUS DEFECTS.  ANY HELP YOU CAN OFFER WOULD BE GREATLY APPRECIATED.
 

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