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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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  • 1 Answer

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

  • 20 Answers

SOURCE: 42 LG Plasma picture distorted and flickering

replace the control module.

Posted on Mar 11, 2009

  • 666 Answers


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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The tv suddenly goes black and the power light blinks red


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop. LCD TV Repair No Power Power Supply Common Symptoms Solutions How to...

Mar 12, 2015 | LG 37-inch Led-lcd Tv - 1080p 60hz Hdtv...

1 Answer

Crackle Then Stop

Check the firmware on the tv. I would imagine youre connected with hdmi, and some tv's (lg, vizio mainly) have had firmware issues. check teh lg website for updates.

Jul 01, 2012 | LG 32LG30 32 in. LCD HDTV

1 Answer

We recently got a new LG 42" 1080p HDTV and occasionally the screen goes dim/gets slightly darker while we are watching shows. It is not the show as I have tested the same spot the dimness occurs...

It can be the auto-contrast is doing its jobs so LG can claim that the TV has really high contrast ratio, also try turning off auto brightness feature off. It gets real bad when the scene has dark back ground such as the dark sky with stars, the TV will really dim down to give real black sky but at the same time you can barely see the stars on the screen, LG is not the only one with this design problem, VIZIO and other has the same problem as well. If you Google your model and search for review you may see that you are not the only one with this problem.
What is the exact model of this TV.
Please let me know what you find.

Basic LCD monitor and TV troubleshooting guide:
Failed TV and Monitors:
Learn about bad caps:

Mar 09, 2011 | LG 42 in. Flat Panel LCD HDTV

1 Answer

Lg 42pc1dv have just purchased a lg bluray player and hdmi cable selected corret socket get the picture ok but no sound, all works fine on daughters tv.

hi. i have the same problem with my sky HD box and the same lg tv as you,

did you solve the no sound through HDMI.

Nov 25, 2010 | LG 42LC2D 42 in. LCD HDTV

1 Answer

I have a LG 50PX1D-UC plasma TV with a black vertical line

You could have a Driver Board that has a loose connection or a Ribbon Cable that has a intermittent connection to the Plasma Panel, or a defective Plasma Panel. Either one could cause the problem and I would recommend only a Qualified Service Person to check it out.
Here is LG's Customer Service Number. 1800-243-0000. They could direct you to a Local Service Facility.
I hope this helps,
Sky Assoc

Oct 25, 2009 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

LG 42LC2DB LCD TV Flickers when Ps3 is connected via HDMI port

Make sure you have the PS3 set to the correct frequency for the TV. Many cannot accept 1080p / 24fps etc.

Try different settings.

I hope this helps.

Mar 28, 2009 | Flat Panel Televisions

1 Answer

Screnn going blank

sounds like sky tv issue, try different cabling

Jun 02, 2008 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

Lg plasma

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.
how does it perform if you play a dvd player , with and without the cable box connected.

Apr 29, 2008 | LG 42PX5D 42 in. Plasma HDTV

1 Answer


if your tv is on warranty take it back to best buy for a replacement.good luck

Apr 27, 2008 | LG 42PX5D 42 in. Plasma HDTV

3 Answers

Sky remote code for LG 42LC46 tv

After spending hours on this I found that code 0206 worked on my sky+ remote(with LG 42LC46). On an old sky remote, prior to version 4 (inside the battery compartment), just use 206.
This code was actually for a LG 42PX5D but it works perfectly on my tv.

Jan 14, 2008 | LG 42PX5D 42 in. Plasma HDTV

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