Samsung plasma PN60F5300AF, TV power on but no picture with sound.
The big cap in the power supply voltage is 395v, the VS and VA was normal (208v and 55V) at time while turn on, but dropped to 0v after a while. This means the power supply is good.
Took off the y-sustain board and checked the transistors but non seemed to be bad, no fuse for this board. Checked the upper and lower buffer boards no shorted.
The Samsung plasma TV is infamous for bad caps in the x y board.
The problem is the capacitor C5162 (value marked 106) in the y board (LJ92-01958B, LJ41-10331A), see photos. Replaced with a good one fixed. This is the common problem for this model (I fixed 2 in my memory).
Hope this can help other repair guys.
The big cap in the power supply voltage is 395v, the VS and VA was normal (208v and 55V) at time while turn on, but dropped to 0v after a while. This means the power supply is good.
Took off the y-sustain board and checked the transistors but non seemed to be bad, no fuse for this board. Checked the upper and lower buffer boards no shorted.
The Samsung plasma TV is infamous for bad caps in the x y board.
The problem is the capacitor C5162 (value marked 106) in the y board (LJ92-01958B, LJ41-10331A), see photos. Replaced with a good one fixed. This is the common problem for this model (I fixed 2 in my memory).
Hope this can help other repair guys.
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