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I am assuming the pic is black during the fault, firstly when its black push the menu button of the sets own remote control does the menu come up please?
when you push the menu nothing shows on the screen or with input
Can you see any visible light at all on the display during it blacking out?even a feint display light
OK I am assuming the Vs and Va voltages are present on the scan boards, now if you switch the set off after it going black and feel the heatsinks on both scan boards are they warm?
Is the logic board led blinking about once a second?
it is still playing when it goes black will ck it logic board is blinking now will let you know when the pic goes black
Yes let me know if the heatsinks on the Y and Z boards are warm also that will tell me a lot