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Lg 22ls4r hdtv screen flickers

Hi i recently purchased an lg 22ls4r hdtv and when i connect it to cable/sky tv the screen flickers and goes purple/blue/red for 5-10 secs before going back to normal, also if watching the same channel for a period of time it does the same thing flickers and washed out purple colour. please can you help?

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Disconnect the TV from your sky box and watch TV with just aerial. If this cure the problem, then it is the sky box that may cause the problem. If not then your TV has a problem. Check the colour setting and make sure it is not in saturated mode. Otherwise take it back to the shop.

Posted on Jan 08, 2018

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Posted on Jan 02, 2017

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SOURCE: Polaroid FLU-2632

I had the same problem. It's caused by the picture setting on your Sky box. Go ibto Services, select Picture Settings and set the mode to PAL not RGB.

Posted on Jul 19, 2007

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SOURCE: LG LCD Flat screen 32 screen blank red light blinking cable on

The Lg lcd was srtruck by a remote and now looks like a small crak on the inside towards the bottom right hand corner and there is no picture but audio does work

Posted on Nov 09, 2008

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SOURCE: 42 LG Plasma picture distorted and flickering

replace the control module.

Posted on Mar 11, 2009

yammy_alf
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SOURCE: RCA 37" FLAT SCREEN NON STOP FLICKERING/FLASHING SCREEN

you need to remove main ckt, (m.board) some part need to re solder specially in hot area. (lost contact i one of the flickering problem you encountered.

Posted on Mar 26, 2010

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there are 2 types of flicker, one is the lamps that drive the display and the second is the sync signal of the video.
I assume the video sync is the flicker you see,
I would try connecting a different way to make sure it is not the tv,
connect using the aux /rca connectors to cable box.
and or connect using the cable direct bypassing the cable box.
I have seen several complaints about the hdmi cable signal being incorrect in some way,
this is the same issue that the svideo connector had in its early adoption signal was too hot or too low.
another thing to watch out for is the low light sensor on the front of tv if it gets an incorrect reading it can flicker the back light though it should be slow in doing so.
some times the flicker you see is not flicker but ac running through the sides of the picture from an ungrounded cable source.
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