Question about LG 42LC2D 42 in. LCD HDTV

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Proscan 42lc55s240v87 My tv stopped working, it had the sound but no picture, change the inverter and started workinging but in a coupel of months again has no picture but only sound. You can see the pic with the flash light. Bought another inverter but no luck this time. anybody can help me?

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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  • 43 Answers

SOURCE: Power; No Pic or Sound

Hi, If you had not moved it, I may rule the SMPS (power supply board) went bad.
The unit may have suffered excessive shock that it knocked loose a connecting cable or two inside the unit. Don't be a hero though by attempting to pry the unit open. LG generally has a two (2) year warranty and they're super on repair turn around time. Call it in and they'll fix it pronto.

Best Regards

Posted on Jul 11, 2008

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dsacco86
  • 1077 Answers

SOURCE: Panasonic Plasa TV's Power light is blinking no pic no sound

The most likely the TV has a power supply related problem. The most common thing to go out is the circuit board that supply power to the screen. Commonly called a Backlight Inverter Board.
I can't say it's 100% the problem because I can't actually look at the tv over the internet.
If by chance the TV is still under warranty, go that route.
If not under warranty and If you have some electronic experience, you can purchase a Service Manual over the internet and diagnose the source of the problem and fix it by soldering in the new part. The Service Manual will give you circuit diagrams, test points, and part# lists. Usually, cost under $20.

I hope I shed some light on the subject for you.

Posted on Jun 28, 2009

dsacco86
  • 1077 Answers

SOURCE: flashing red center light

With most flat panel TVs, the TV turn itself OFF when it has a fail electronic part and the red light starts flashing. They call this "Protection Mode". The flashing red light should be a error trouble code.
But, it's weird that everything is working and the red light is flashing. Since you just recently bought the TV, I would get it check out while it's still under warranty. Better safe, than sorry.

Posted on Jul 20, 2009

  • 1 Answer

SOURCE: tv turn on no pic or sound

I bought a tv form china, which model is LG 42sal80yd-ca. i was update firmware dtv v3.15 epk.then its restart and it does not on, only power light on and black screen the it off automatically, not its on and off continue. please help me

Posted on May 03, 2011

  • 51 Answers

SOURCE: Hi, I have LG lcd 32LH60YR , problem is no picture

u cheak the VGA copestar of ur lcd it give the minmum voltage for light so replace the copestar and than cheak it i yhink u will see the majic

Posted on Aug 17, 2013

Testimonial: " can u please suggest which parts it associated with? MY LG model:32LH60YR"

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5 ear old 50" proscan tv: picture went out. TV turns on, has sound, can change channel and volume level but no picture


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 digital board.

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I have sound but no picture on my Proscan TV


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/

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1 Answer

Proscan 32LB30QD TURN ON SOUND BUT NO PICTURE


Sounds like a bad inverter thats what powers up the backlights so you can see the picture on the screen. usually its about 85% of the times the inverter if you have pefect audio and remote functions but a black screen in a LCD modeel TV. You can get the inverter board from www.tvrepairworld.com

Jan 12, 2013 | Proscan 32LA30Q Television

1 Answer

Proscan tv powers on but no picture


Does the audio still work normally? If so uits most likely the inverter board which has failed and you can get a replacement inverter from www.tvcircuitboards.com

Jan 01, 2013 | Proscan 32LA30Q Television

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Ur LCD inverter board is dead.Replaced the LCD inverter board.U will get ur picture back.Tries websites like Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter board for the replacement.It a long board in shape.

May 09, 2010 | Proscan 40LD45Q TV

1 Answer

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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.

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1 Answer

Television for 6 months and it died. The model number is as follows: 19LA25Q where would I find the warrenty information if I lost all the paper work or how could I get in touch with the manufac.?


If you have power, sound, & channel changing capabilities your LCD backlight inverter burned out. You need to go to E-bay and purchase a 4 bulb LCD backlight inverter for about $25.00 and install it. I did it with mine and it works fine now.

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3 Answers

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If you are using a set top box this might be caused by turnig the box on at the same tie as you turn the tv on or slightly after you turn the tv on.  If you are using compnent or HDMI inputs the set needs to see the signal as it is turned on to know what formt the signal is in. 

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