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lg32lc46 sync error

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blackmail:
The board works ok, but after 5 mins the picture breaks up,
looks like sybc is missing.  heat up Genesis display fli8548hlf and the sync stabilzes until the chip cools down and the fault returns. 
anyone got any suggestions?

watteau:
Hi,
Worth checking the LT lines on the signal board, (voltages, and for any noise on them),
when the fault appears.
Regards,
John

blackmail:
i have checked the lt lines and they all seem ok.
i have bought another board for this tv off ebay and the problem i am getting on this board is . Immediately after the mains cable is inserted, the green power LED flashes 5 or 6 times, then flashes red once, then goes out. The set, obviously, then doesn't work. This is an intermittent fault which is getting more frequent suggesting component failure somewhere on the psu (P/N EAY34795001). Is this a known fault with a solution, or am I replacing the entire board?

sparky:
hi
have you checked the caps in psu they look ok
but loose capacitaince check with esr meter
dave

blackmail:
checked those caps in the psu voltage is ok in psu but the tv switches off with one video board and is distorted with the other board

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