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Lg 50pg20d has three red lines - Televison & Video

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On power up the led flashes 6 times and then turns red, tv will not turn on for 30 minutes or so then it works again for maybe 2 -3 hours then it happens again

Your power board is defective. diy price about 50 to 100.00. Check on Ebay with your model # for power board. Board has about 4 screws and 3 to 4 plugin.

Sep 03, 2015 | Televison & Video

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Lg 55lv6300 has red and green vertical lines help

On other panel TV's this is known as a convergence problem. You have to get experienced help costing about $150 or do it yourself. TV's that age have this issue, and you have to open the Tv and find the voltage/convergence box with three screws on it. It usually has blue, green and red adjustment screws, with red on the right. So go for the green and red and adjust until the issue goes away.

Jan 25, 2015 | LG Televison & Video

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TV LG 42LG30

Bad screen cap. Maybe on power supply board. RCA calls this problem, Jail Bars three to four lines on screen (show bars).

Apr 10, 2014 | LG Televison & Video

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When i go to turn on my LG 50PG20D-AA plasma tv, the green power light turns on for a couple seconds, the LCD turns on, then flicks off again, it keeps repeating the process until you disconnect the power...

everyone is wrong here.

Disconnect the power from the mainboard the board down on the right hand side.

now short out the auto_gen with a peice of wire while tv unplugged.

after this process plug it in.
You should see a test pattern this will rule out Y-sus and Z-sus problems.

Problem will be main board.

Dec 28, 2012 | Televison & Video

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LG DU42PX12X - red and pink vertical lines.

I know this post is old,
But I had the same problem.
I was able to fix it.
Heres a write up I did on the "How To".
I added pictures and diagrams too.

Jul 22, 2010 | LG DU-42PX12XC 42 in. Plasma HDTV

2 Answers

Power led blinking red and green wont turn on

For LG DU-37LZ30 specifically - On the power supply board, look for IC101, an 8-pin DIP IC. There will be three smaller electrolytic capacitors near it (C107, C113 and C125) marked 47uF, 35V. I'm being lazy here, but replace all three (only one is the real culprit). What is happening is that one of these caps is charged by line voltage until the IC (power supply controller) can start running. When this capacitor gets leaky, it cannot reach the proper voltage to start the controller. I used a 47uF, 50V replacement.
I have fixed two LG sets with this same problem. The other was a 26". It's a cheap fix!

Nov 02, 2009 | LG DU-37LZ30 37 in. LCD HDTV

3 Answers

Red in picture

Have you tried with a new scart or htm lead?

Sep 23, 2008 | LG 50PX4DR 50 in. Plasma TV

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