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Hi i have lg 47LN5750 SVC CODE 47LN5750-UH .BBCCYLJR I have a problem with screen brightness tv sound ok video vision is too dark.

Hi i have lg 47LN5750 SVC CODE 47LN5750-UH .BBCCYLJR I have a problem with screen brightness tv sound ok video vision is too dark.

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Lg tv 47LN5750 no picture with sound. Can see images on screen

It's sounds like the backlight inverter part on the power supply board is bad. There's a place called shopjimmy.com that has pretty good deals on parts. The board for your TV is around 25-40 I believe and is an easy diy fix.

Posted on Oct 10, 2016

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gopakumarg43
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SOURCE: LG smart tv model number 47LN5750-UH. No picture but have sound. When I hold a flash light up I can see the menu screen. Been told it's a driver...

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.

Posted on Oct 26, 2016

  • 11 Answers

SOURCE: LG 47LN5750-uh. replaced the main board. picture still blue, back lights are on but not picture. besides throw the tv in the ditch, what should I check next?

Either you have a bad panel or the T-con board is not processing the video to the screen. This is the board between the main board and the screen. There is one on E-bay for just under $35.00. Hope this Helps.:)

Posted on Apr 29, 2017

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1 Answer

Is the power supply board on my TV the cause of no back lights?


Hi Grant,

This is a backlight issue. Defective LEDs in the backlight array need to be replaced. Welcome further assistance.

Good Luck

Feb 13, 2018 | LG Televison & Video

1 Answer

LG 47LN5750-uh. replaced the main board. picture still blue, back lights are on but not picture. besides throw the tv in the ditch, what should I check next?


Either you have a bad panel or the T-con board is not processing the video to the screen. This is the board between the main board and the screen. There is one on E-bay for just under $35.00. Hope this Helps.:)

Apr 28, 2017 | LG Televison & Video

1 Answer

My tv powers on displays the LG logo then makes a high pitched squeal sound from speakers and then flashes on screen (strobe light effect) does not display picture or sound.


LCD TV Repair Tutorial - LCD TV Parts Overview, Common ...

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https://www.youtube.com/watch?v=tS4sIpdajVw
Aug 23, 2013 - Uploaded by ShopJimmy.com
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Dec 16, 2015 | LG 55LE5400 TV

1 Answer

LG 47LN5750 TV has no back light issue-


replace screen it's faulty period ensure it comes with T-con

Oct 03, 2015 | LG 47LN5750 47" LED TV 1920x1080, 120 Hz,...

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