Hi!
I have repaired a few TVs but never had a plasma TV before.
For a new challenge/experience I picked up a Samsung PS-42E92H from the junkyard.
Unscrewed at home, the fault seemed clear. 3 capacitors on the PSU were bulging.
I also replaced some surrounding ones and came up with 8 capacitors.
Unfortunately, the TV still does not turn on.
5V standby are measurable on the PSU and on the mainboard.
If I understood correctly, 12V should be generated on the mainboard. But there comes nothing.
On the right part of the mainboard I can't measure any voltage on any of the electrolytic capacitors. On the right half I have different voltage (2V, 3,3V, 1,XV 5V)
Can I somehow narrow down if it's the MT8291E or its supply/drive (which would then probably be a CPU error and thus an irreparable motherboard)?
I have repaired a few TVs but never had a plasma TV before.
For a new challenge/experience I picked up a Samsung PS-42E92H from the junkyard.
Unscrewed at home, the fault seemed clear. 3 capacitors on the PSU were bulging.
I also replaced some surrounding ones and came up with 8 capacitors.
Unfortunately, the TV still does not turn on.
5V standby are measurable on the PSU and on the mainboard.
If I understood correctly, 12V should be generated on the mainboard. But there comes nothing.
On the right part of the mainboard I can't measure any voltage on any of the electrolytic capacitors. On the right half I have different voltage (2V, 3,3V, 1,XV 5V)
Can I somehow narrow down if it's the MT8291E or its supply/drive (which would then probably be a CPU error and thus an irreparable motherboard)?
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