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Samsung Ps43d450a2w sound but no picture

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Simisker:
Just had this TV given to me and as the topic says it has sound but no picture, any ideas of what it cud be?

t1412:
hi i had one the same turn out to be x main board, on the right hand side, got one from emos .cheers

regards
shaun   

downunder:
Impossible to diagnose when all we've got to go by is that it has no picture. t1412 may be right or wrong .
The X-Main was problematic on this model due to poor drive from the Control Board. Here in Australia, the X-Main has a new part number and is supplied with a modified Control Board included. See if the are any burn marks and check for shorted transistors on the X-Main.

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