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Calibrating HDTV 47LN5400 - LG 47LE5400 47 in. TV

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LG 47LN5400-UA LED picture has gone out. Audio works. Using flashlight I can see faint menu image. LED Driver or LED Strips? How can I tell?


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..

Dec 23, 2016 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

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LG 47LN5400 blank screen after brief flash


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.

Dec 12, 2016 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

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Can I replace screen on my LG 47LN5400? It fell over this weekend and broke the screen. I'm pretty good at fixing things, can I buy a replacement screen anywhere for this?


Screen will exceed the value of the set. If it is even available. That is the single biggest cost in tvs. Even u Der warranty few manufacturers replace them. Most replace the entire set.

Oct 31, 2016 | LG 47" 5400 Series LED HDTV - 47LN5400

1 Answer

How do i remove the screen from my lg 47" tv to replace the leds?


If you wish to get some details; check the site linked here. Pull up older posts.
http://electronicshelponline.blogspot.com/
Disassemble & reassemble procedure to many popular brand TVs and other devices are given in detail with illustrations.

Sep 10, 2016 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

1 Answer

I can see the bulbs on my led tv


Need more info please what seems to be the problem with the bulbs

May 14, 2016 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

1 Answer

My LG 47LN5400-UA flatscreen has a black screen, everything works fine except black screen, when I shine flashlight on screen I can see full color picture, I have replaced the power supply/LED 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/
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

Mar 14, 2016 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

1 Answer

Which part needs replacing on the TV? See details.


Fault to the main power supply regulator section. Either it will be on a separate board, or on the part of its 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/

Aug 26, 2015 | LG 47" 5400 Series LED HDTV - 47LN5400

1 Answer

No backlights, have sound, no piture on tv


Check the cable. Possible bad HDMI (or whatever you use).

May 06, 2015 | LG 47LN5400 47" LED TV 1920x1080, 120 Hz....

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