I have a Vizio 55in 4K TV model number m55 - C2 the problem is it has no picture but does have backlight and sound. When powering on the logo flashes for a Split Second I have tested all voltages they're all good but the voltages from the output on the t-con board are not present or are very low at the ribbon cable connector test points I have replaced mainboard bord and t-con bord. Still having same problem please can you help me figure this one out really would like to get this TV up and live again thanks.
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Vizio M55-C2 HASE BACKLIGHT NO PICTURE
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