On the power board, you will see two large electrolytic capacitors at one corner and a transformer directly next to them on the long side of the board. The big blue (usually blue, anyway) box next to those is C97. On the other side of that are three white power resistors standing in a row. The part number label for the board is usually on the edge of the board right close to C97.
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Check the 15v line that runs through all the boards, left, right and top.. If that has no power, then look on the ysus board (left one) there is a flyback reg (5pin) standard to-220 case surrouded by caps, it does dc to ac conversion, if you dont have the 15v output then the chip is bad. I just did 2 of these that had the same problem.
Email this guy @ [email protected], he has planar parts to sell he might have a power board or change the c97,c19 and c16 caps below is where I got mines.
Got it from a site called digi-key.com their phone
# is 1800-344-4539. The part #s are EF6225-ND you need 1of these and
E6105-ND you need 2 of these, the cost is $16 for all. Let me know how
I have the same problem, with the cover off I used a hair dryer to warm
the C18 capacitor then switch the tv on and it works. C18 is located at
the top of the power board, thats the second board on the left, it's
value is 450wv 330uf. Until I can get the capacitor I leave the back
open. Let me know this works for you.