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Can the lcd panel circuit be fixed?

I replaced the LEDs in my LG 47LN5700 because I was not getting a picture. While putting the glass back in I chipped the bottom where the circuit runs. I now get a picture, but it is flickering on the side of the chip. Can I solder that to make the connection or should I just trash the TV?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Falling Down
  • 67 Answers

SOURCE: Sony Trinitron KV35V36 Glass Chip

fill in the spot with clear epoxy from radio shack. Place shipping tape over the epoxy and turn the screen up if possible to make the repair flat. Wipe off any excess epoxy as the tape is applied. The break refracts the light from the screen away from you and makes it appear dark. Remove the tape after the epoxy sets. Do not open the unit up. The aquadag can hold high voltage for up to a month. There should be no danger of breaking the crt itself if you're careful. Over time, recycling the power on and off may make any cracks propagate but if there are none now it should be ok.

Posted on Nov 30, 2007

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  • 70 Answers

SOURCE: LG flatron L1710S PC Monitor

Depends on what motherboard you are using. IF this is indeed the case, you can still put a CHEAP add-on graphics card on the motherboard and get the system up and running with minimum expenses. Most motherboards support adding an additional graphic card besides the onboard chip.

Posted on Dec 24, 2007

delgriffith
  • 97 Answers

SOURCE: Small chip in screen of 40'' TV

if its just the glass that is chipped, it can be repaired with clear nail polish or epoxy, use a piece of semi-rigid plastic to hold it in place while it cures, much like a windshield chip repair.

Posted on Jun 18, 2009

  • 8457 Answers

SOURCE: Had 7 blinks/no picture. Replaced both MCZ3001DB

Resolder the FBT or replaced the FBT,will solved this problems.The FBT are to give high voltage the CRT tube too.

Posted on Jun 25, 2010

  • 5 Answers

SOURCE: Starlike flickers in picture of 57" DLP 1080p HDTV

The problem is the dlp chip on your light motor, you can order a new one at www.tvlampsforless.com.

Posted on Sep 22, 2010

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47" LG TV no sound no Picture model 47LN5700 took TV Apart Power board has no burn marks TV shows for a second LG when turned on then nothing Board # BD5PE628108011922(1.3) any help is appreciated


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. 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.

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Hi when i turn on my 47ln5700 flashes for a second and then goes black. I have sound and see images with flash light. I am not sure if its the led power board or some leds in the led pannel gone bad.


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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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/

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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Lg tv no picture but 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://electro-medical.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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Need help troubleshooting no video on an LG 47LN5700 Television


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/
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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If it was the LEDs, then you should still have some working. My first thought would be the LED driver circuits.

Best of luck.

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Model 47LN5700-UH. Has sound but why 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.

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1 Answer

I have a LG LED television that has no picture but does have sound. I have narrowed the problem down to 3 circuit boards. I'm trying to find out which one is faulty.


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.
www.electro-medical.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
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