I have a Samsung LN46A540P2F LN46A540P2FXZA LCD TV that has randon flashing multicolored horizontal lines on the left side of screen.The lines pick,and choose when to appear.Sometimes when I first turn the TV on,sometimes it takes awhile.They are always on the left side,and they don't go any further then halfway across the screen.Before replacing the capacitors,the horizontal lines are were mostly red,and didn't go very far across the screen.After replacing the capacitors, and the T-Con board,the lines changed to different colors,mostly black,and would go further across the screen when they wanted to.
When I bought the TV from the original owner they said Samsung replaced a board (Power Supply?) which fixed the TV for a couple of weeks,only to have the same problem return.Samsung then told them the panel was bad.
Since I have owned it,I have changed the capacitors in the BN44-00202A power supply that were know to go bad to a better brand/series.I left the smaller capacitors,as they tested good ESR.In fact,all the capacitors tested good.I could tell the original capacitors were changed by someone to a Sam Young brand.I read online where someone had changed their power supply,and it fixed the line probelm.For how long,I don't know.
I also changed the T-Con,but the lines still appear.Did I get a bad T-Con board with the same problem?When I looked up the T-Con board number LJ94-02539A,it doesn't match up with my model TV.It shows a LN46A580P6FXZA.I tried cleaning the ribbon contacts that go into the T-Con board,but that didn't help.I couldn't get to the contacts that go into the panel side.Do I have a bad tab bond?
Any help is greatly appreciated.
Thank You very much!
Tyler
When I bought the TV from the original owner they said Samsung replaced a board (Power Supply?) which fixed the TV for a couple of weeks,only to have the same problem return.Samsung then told them the panel was bad.
Since I have owned it,I have changed the capacitors in the BN44-00202A power supply that were know to go bad to a better brand/series.I left the smaller capacitors,as they tested good ESR.In fact,all the capacitors tested good.I could tell the original capacitors were changed by someone to a Sam Young brand.I read online where someone had changed their power supply,and it fixed the line probelm.For how long,I don't know.
I also changed the T-Con,but the lines still appear.Did I get a bad T-Con board with the same problem?When I looked up the T-Con board number LJ94-02539A,it doesn't match up with my model TV.It shows a LN46A580P6FXZA.I tried cleaning the ribbon contacts that go into the T-Con board,but that didn't help.I couldn't get to the contacts that go into the panel side.Do I have a bad tab bond?
Any help is greatly appreciated.
Thank You very much!
Tyler
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