Question about LG 37LD450 37 in. TV

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Lg 37ld450 no picture

Back light lights up but no pic on screen

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  • Rob McCutcheon
    Rob McCutcheon Jan 29, 2013

    no menu no nothing on screen

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Posted on Jan 02, 2017

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SOURCE: Im trying to find the best picture settings for my

Find a good 720p station and work from that. Don't try and make an analog station look good because with the new sets they just look terrible compared to a hd station. Your set will show you what it can do.

Posted on Nov 27, 2010

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1 Answer

I have a 46 in lg smart tv and the picture went black ,i still have sound but no picture and every once in awhile the picture trys to light up ?


Could be the back light if flat screen which is located in the back of tv. Try shining a flashlight at the screen at an angle and if you see the picture or a portion of the picture, then your back light is out and you have to figure out why.

Oct 08, 2017 | LG Televison & Video

1 Answer

No picture on my LQ flat screen


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement.

Nov 16, 2015 | LG Televison & Video

1 Answer

Sanyo dp42849 picture is slow


Back - light problem. Check and replace damaged component/s at its back-light inverter board, or replace this board as card basis. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. It will be best to replace the inverter board as card basis.
http://electronicshelponline.blogspot.com/
To some model sets; especially LED back-lighted types; the back-light inverter circuit will be part of the main power supply board [SMPS]. In such cases, the power supply board might need replacement. To some models sets, the back-light inverter and SMPS section circuit will be integrated at its main board itself. If so; the main board should be replaced. To some models of sets, all these section circuit will be integrated at its main board. If this is the case, you have to replace the main board.

Apr 22, 2017 | Sanyo DP42849 42 in. HDTV

1 Answer

My LG 21 int ch flat screen takes time to show pictures,the red button appears on and sound will be heard but their will be no pictures,they appear after some time please help me.


hi,

You have to check the back light of your lcd TV. All lcd screen have a back light to illuminate the pixels. you can conform is the back light is faulty or not by watching the lcd screen nearby. Watch can you see any image (negative image) on the screen. you have to look very closely. if you see any image on the screen then the back light or the back light inverter is faulty.

first of all check all the electrolytic capacitors in the power supply and back light inverter board.If available then replace these capacitors first.

You have to check the back light inverter board. Normally in lcd monitors you can see three circuit boards. power supply, mother board, and the inverter board. If available then try to replace the inverter board. There are high voltage transformers in this board. There is a chance for its winding get short. You will not get the transformer in open market. Try for the inverter board .
ok

Jun 09, 2011 | LG 37LD450 37 in. TV

1 Answer

My tv is too zoomed in and wont seem to zoom out?


  1. Using your Remote, press the Menu button, and select the Picture icon.
  2. Find the Picture Wizard, and proceed through the steps.
  3. Also, try and adjust the aspect ratio to see if this helps.

Jan 20, 2011 | LG 37LD450 37 in. TV

1 Answer

Im trying to find the best picture settings for my new LG tv 37LD450


Find a good 720p station and work from that. Don't try and make an analog station look good because with the new sets they just look terrible compared to a hd station. Your set will show you what it can do.

Nov 27, 2010 | LG 37LD450 37 in. TV

1 Answer

My TV seems to have lost power. It is plugged in, but there is no LED red light appearing on the front of television. What can I try?


try swiching it all off then turn it back on to see what that does if still nothing it sounds the power mod is gone my advice to you then would to buy a new tv as the brand you have are two dear to fix.

Sep 29, 2010 | LG 37LD450 37 in. TV

1 Answer

Sound but no picture


does it flash when you switch on ?
take a torch shine into screen can u see pic ?
if so its the invertor board that controls the back lighting or one of the back lights have failed

Jan 08, 2010 | LG 42LC2D 42 in. LCD HDTV

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