SOURCE: picture goes blank after a few seconds of turning on power
check if the back lamps are still on when you lose image, all you have
to do is get close to the screen and make is totally black and if is
not that means you have a back light working, but if the back light is
gone you may have a defective panel.
talked to samsung TA about
the same problem I had and the recommend to replace the power supply
first to confirm a defective panel because a panel is quite expensive
SOURCE: Samsung TV Power Supply Board
I doubt that moisture damaged the SMPS bd.
There are many circuit boards in your set and it will take a trained samsung tech to find the problem.
SOURCE: Samsung LN-T2632H won't turn on.
Follow these steps to figure out what problem is.
When you turn on TV, look at the back and see if the back light on. If it is on, the power supply and inverter work fine. The suspection now is main board and T-con board (the small board on the middle-top of the panel)
To find the problem from the main board or not. Look at the power supply and measure Vs on - turn on the TV, this approx 5 vlt DC needs constant once you turn on the TV. If it is drop or unstable - main board problem - replace it.
If Vs on is good - disconnect the T-con cable from the power sup. If power sup stop clicking - T-con need replacing. Hope it help.
SOURCE: No Picture. Started with picture intermittently
COULD BE GENERAL SERVICING, THIS INCLUDES DRY JOINT..RESOLDERING THE HEATED PLACES, ON BOARD, SECONDLY, IF PICUTRE IS COMING AND GOING OUT CAN BE ALSO A VERTICAL IC PROBLEM, NOT TO REPLACE, RESOLDER THE UNIT AND TRY TO ON, SHOULD SOLVE THE PROBLEM
SOURCE: have a 40 inch samsung lcd tv, the screen flashes
you either have a bad bulb or a losse bulb in the lcd panel a good reapir shop[ can fix that by reseating the bulb or replaceing them
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