20 Most Recent LG 47LN5750 47" LED TV 1920x1080, 120 Hz, HDTV Questions & Answers

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LG 47LN5750-UH has sound but no picture.

Follow the link pleae. TV Boards Buying Guide
1/5/2018 5:09:36 AM • LG 47LN5750 47"... • Answered on Jan 05, 2018
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How to upgrade firmware on LG 47LN5750

You can upgrade firmware from there official link
12/12/2016 6:18:42 AM • LG 47LN5750 47"... • Answered on Dec 12, 2016
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Have a LG 47 inch tv. 47ln5750. When I power on the LG appears on screen then shuts off. took off the back cover and when I powered on I could see the LEDs flash. problem be led board? Or Led strips?

Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
10/27/2016 5:48:16 PM • LG 47LN5750 47"... • Answered on Oct 27, 2016
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Tv turns on and screen flickers on for a second and then turns off, whats the issue?

Sounds like 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.
7/28/2016 7:23:07 PM • LG 47LN5750 47"... • Answered on Jul 28, 2016
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Tv flashes good picture for 1/2 second and then dark. Picture is there but really dark. How can I tell if it is an led strip or the power supply board

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://electro-medical.blogspot.com/ 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.
7/17/2016 7:37:47 AM • LG 47LN5750 47"... • Answered on Jul 17, 2016
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I have a LG 47LN5750 that powers on, flashes a good picture for about 1/2 second, then goes dark. Still have sound & can see a picture with a flashlight shining on the screen.

Fault to the main power supply regulator section. Either it will be a separate board, or the part of main board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts. http://electronicshelponline.blogspot.com/ It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.
7/17/2016 7:31:17 AM • LG 47LN5750 47"... • Answered on Jul 17, 2016
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LG 47LN5750 TV has no back light issue-

replace screen it's faulty period ensure it comes with T-con
5/17/2016 1:58:41 PM • LG 47LN5750 47"... • Answered on May 17, 2016
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I have a Lg LED tv model 47LN5750 that turns on but then stays on the LG "lifes good" screen and will not do anything more. what could be wrong?

Corrupted firmware. A firmware update is necessary. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
11/13/2015 9:08:10 AM • LG 47LN5750 47"... • Answered on Nov 13, 2015
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Cracked screen hangit it how much to replace screen

Its better to go for a new tv rather than trying to replace the LCD panel. With the amount you pay for the LCD panel you can buy a new tv. Also it would be very difficult to find the exact LCD panel . www.electro-medical.blogspot.com
10/10/2015 4:20:30 PM • LG 47LN5750 47"... • Answered on Oct 10, 2015
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I have a LG 47LN5750. No picture, sound yes, I see menu when using the flashlight test and have no back lights showing. please help with my next steps in fixing this issue. Just happened this morning.

What you are describing is common in these sets. The power unit tends to cause the LED backlights to fail. It is a 50 dollar parts cost but you have to upgrade the firmware to prevent it from happening again
10/9/2015 12:55:39 AM • LG 47LN5750 47"... • Answered on Oct 09, 2015
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LG TV 47LN5750 Backlight Out

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/ 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.
9/14/2015 9:15:15 AM • LG 47LN5750 47"... • Answered on Sep 14, 2015
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Fix lg led tv with no picture but has sound

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/ 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.
9/5/2015 4:16:22 AM • LG 47LN5750 47"... • Answered on Sep 05, 2015
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I have a LG dvd player 5083 inserted the disc the correct way into the draw but the machine does not play the disc a very slight humming noise is heard then it spits the drawer back out

Clean the Lens: Use a DVD cleaning disc to clean the lens. If the problem persists, consider professional cleaning. Test Other Discs: Try playing different DVDs to see if the issue occurs consistently. If it's specific to one disc, that disc might be the problem. Check for Updates: Make sure your DVD player's firmware is updated. Refer to the manufacturer's instructions for firmware updates. Try a Different TV: Connect your DVD player to a different TV to see if the noise disappears. If it does, the issue might be with your TV. The hum is simply the player trying to read the disc. It can't so, it spits it out. Remember that prolonged use of a malfunctioning DVD player could potentially cause damage. If the problem persists, consider seeking professional repair or replacement
4/19/2024 8:46:44 PM • LG Televison &... • Answered on Apr 19, 2024
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3answers

Fuse diagram for a LG plasma model pdp42v80201

The screen blank out
4/7/2024 11:03:07 PM • LG Televison &... • Answered on Apr 07, 2024
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LG Plasma TV is not displaying picture when it is turned on

This is the Power Board for it. check those 6 electrolytic Capacitors on the right for bulging or splitting. Don't buy it blindly, it's a guess. The output voltages with a digital multimeter. https://applianceparts.com/item/10217204/LG/EAY62812602/ Many parts are obsolete. eBay has used boards, but they are risky because they are out of scrapped sets. https://www.google.com/search?q=50PN5300-UF+power+board We have a television expert named Larry, but I haven't seen him for a while. This used to be my advice https://www.fixya.com/support/r29790007-repairing_own_television ..
3/30/2024 8:59:29 PM • LG Televison &... • Answered on Mar 30, 2024
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3answers

DVD reading problem on a LG DVD5083 DVD player.

Maybe the disk is not compatible with the DVD player version
3/24/2024 9:16:41 AM • LG Televison &... • Answered on Mar 24, 2024
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How do I program my DVD video remote control to my LG Blu Ray surround sound player please?

It can't be done. The DVD remote will be single frequency for that device only and the LG remote for that LG Blu Ray (or series) only. Companies don't make cross-control between makers easy. The only exception is cable and satellite boxes to allow their remote to also control the television. If you have lost a remote or it doesn't work, this is the answer https://www.fixya.com/support/r29872378-universal_remotes_no_facsimile_remote ..
3/19/2024 4:25:52 PM • LG Televison &... • Answered on Mar 19, 2024
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