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Question about Samsung SPK4215 42 in. Plasma Television

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No picture Television powers up but has no picture only some faint horizontal lines across the screen. Does anyone know what the LEDs on PCB board mean. Are they diagnostics LEDs and what are they telling me?

Posted by Darrell Murphy on

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Sounds like the inverter board is bad, some tv's have the inverter as part of the power supply, you will have to open it up to find out

Posted on Apr 30, 2007

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Will a bad Back light Inverter board make horizontal lines all the way across the top of the screen after it warms up ?
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Welcome to fixYa!

When you see lines like these across your LCD, it indicates a problem with your monitor's electrolytic capacitors.A faulty filter capacitor in the power supply board (SMPS board) can cause horizontal lines across your monitor screen.Horizontal screen lines are one of the most visible problems I see in LCD monitors & TV's that are 3-7 years old. It can happen as much from heat, humidity & less-than-ideal operating conditions, as it can from fluctuating current supply or manufacturing defects.

The way to repair horizontal screen lines is by removing the capacitors from the printed circuit board (PCB) and testing them with a LCR meter.

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SPK4215 42 in. Plasma Television

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Will a bad Back light Inverter board make horizontal lines all the way across the top of the screen after it warms up ?

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Samsung plasma won't turn back on TV will stay on indefinitely but if you turn it off it will not turn back on unless you unplug it for about 8 hours. if you do not unplug it the red light flashes on and off. when you unplug it for the 8 hours and plug it back in the relay clicks twice and turns on with everything working but if you leave it plugged in first it seems unresponsive then sometimes the red light will turn green for a few seconds the goes back to red and flashes steadily. I have a multi meter and would like to fix this myself. I have removed the back cover but the power board has a cover on it that is mounted from the underside so before I removed it I wanted to check if that is where the problem is. any help would be greatly appreciated. Thank you
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Be the first to answer Apr 12, 2012 • Samsung SPK4215 42 in. Plasma Television

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