TV shows vertical color lines

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I got a Panasonic 50 inch LED UHD 4K TV model TH-50CX700A. I bought it from gumtree ( so no warranty) just 3 weeks back. First 2 weeks it ran like dream. Now it shows vertical color lines when turned on. Strangely sometimes it comes back if I UNPLUG it from power source and keep it like that for sometimes, plug on again then it runs perfect! But if I keep it on standby mode, and turn it on, the green indicator light blinks like 7-8 times and red vertical lines appear. Whats happening?

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@mirehsan The blink code are as follows

6 blinks Driver SOS 1 SU / SD / SC Boards (SC energy recovery circuit)

7 blinks Driver SOS 2 SU / SD / SS Boards (SC floating voltage area)

common error on those models is the SC board. I'd definitely start with that.

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Post some images of what your screen shows as well as your boards etc. That way we can see what you see. Use this guide for that.

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@oldturkey03 Thanks for your valuable input. I have uploaded picture just now. Would be grateful if you could advise me what I can do now.


@mirehsan not sure where you uploaded your pictures:-) Follow the guide referred to in my answer to add images to your question.


@oldturkey03 I think its visible now. thx


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