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First of all try to update the firmware. If its didn't help then you can go for a new mother board .
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electro-medical.blogspot.com/
which mean had an error detected by the main board which turn to safety mode. if you will be the one to do the repair make sure you have knowledge in electronic repair since as you know some parts with high voltage. now let first disconnect the connector that supply the inverter board for screen back light just to ensure if their is a shorted component in the board. then turn on the tv unit, if the tv unit doesn't turn off right away that was mean the cause is the inverter board.
Problem is in either power supply or the Y-Sustain board.
The Y-Sustain is a relatively large board out of which go connections to the side of the display; it's therefore closer to either the left or the right side of the display, has at least one rather large heat sink on it and fat power cables connecting it to the main power supply.
Often there are fuses on that board - one or more. Check those.
if they are blown you can try to replace them, but expect them to blow again - usually the whole board needs to be replaced.
It sounds to me like you either have a bad inverter board(The board that lights up the screen),or a bad bulb in the screen itself.When you turn it on,and the screen goes away,shine a light on the screen,and see if you can see a picture.I hope this helps.Thank You very much!
Ur Tuner board,that the tv signal came into that board.U have a little manchanical skill.Take ur tv aparts.Replaced that Tuner board ur tv will work again.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board to replacement.
Hi,I fixed my here's issues i had and the fix i did..
Every now and then i would get snow and a pink picture.
Then tv stop turning on .
To fix i seen on main board capacitor cp25 and cp28 near the heat sink was bad
They were both 470uf 35v...
on the power board i seen c531 47uf 50v was bad.
i also heated up the heat sink on the main board to resit the chip ,,
and tv now works
I didnt bother putting the huge shield back on main board i figure it was a issue to over heating the cpu instead take the hit to the brain from the fcc radio wave lol
First do the 3 caps and see if it works if not then do the blow dryer to the heat sink on main board