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My television only shows snow. no picture or voice

Lg 421n5400

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  • 67 Answers

It sounds like you have the incorrect input device selected, change the input device setting.

Posted on Nov 10, 2014

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My lg tv has sound and no picture. Has back light I checked with flashlight. Replaced boards in back turned it on had snow. Finally hooked it up to cable and it went back to sound and no picture.


There must be something loose on a print board as i read that it was giving a snow picture after replace boards and if you disconnect the cable it does also not snow again begin in the basic powersupply and the boards after that you have not replaced first and then gently press heat-carrying components specifically which sit on a heatsink but also connectors with a
plastic or other non-conductive object.
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Mar 02, 2016 | LG Televison & Video

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My lg 42ls3450 is giving black and white pictures without sound and colors. how to fix it. where as i bought it from canada and brought to Pakistan,but it is not giving colors and voice,just giving black...


Canada runs NTSC. Has your television the capability of swapping to the Pakistan PAL B standard?

The manual is available here: http://www.lg.com/uk/support-product/lg-42LS3450#

Feb 05, 2015 | LG 32LG30 32 in. LCD HDTV

1 Answer

Picture went out on me its brand new tv voice is there what happend


if you see the volumn bar on the screen when you adjust the sound then the tv should be OK. So look for HDMI wire not inserted fully or what ever wire sends your info to the tv from your cable box, satelite box, or whatever. Or does anything show at all on the screen that you can see, like snow on antenna without a signal input. Maybe a real problem.

Nov 21, 2010 | Samsung HP-R5072 50 in. Plasma HDTV

1 Answer

I have snow on a black screen when nothing is on.It is a LG 42PC3D I still have a picture when I hook up my HDMI. How do I get rid of the snow.


Sounds like your y-sustain board is getting ready to go. You need to have a shop replace it along with the z-sustain board to fix it. Hope this helps.

Sep 16, 2010 | LG 42PC3D 42 in. Plasma Television

1 Answer

Screen suddenly went to complete snow no video or audio


Well the LG tv is not getting the cable signal.Unplug the cable box about an hour.Replug the box let the software to upgrade the cable box.The LG tv should get the signal back as normal.Not,than the LG tv Tuner board have problems it dead.Tries Websites like Shopjimmy.com,Ebay.com to buy a refurbish Tuner board for the replacement.

Apr 21, 2010 | LG 32LG30 32 in. LCD HDTV

1 Answer

Picture has snow


check the input cable or signal and insert it properly.

Sep 24, 2009 | LG 42PX4DV 42 in. EDTV-Ready Plasma...

2 Answers

Lg tv has vice ut no pictures


No I did hear a pop or anything it just make sound but no picture

Dec 15, 2008 | LG 42LC2D 42 in. LCD HDTV

1 Answer

No picture, vertial lines w/many colors, snow


lg plasma tv is not for a novice to play with. the three main circuit boards are control. y and z sustain and they are not repairable
find a shop that can replace the defective one for you.

May 17, 2008 | LG 42PX5D 42 in. Plasma HDTV

1 Answer

No more picture and sound


Tv was showing perfect picture now it's snow solution 1 please check antena wire & its socket. 2 check for dust where wire is connected. 3 loose contact or print break near tuner. 4 tuner defective.

Sep 15, 2007 | Sanyo DS27930 27" TV

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