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EBU60934502 where is the problem with the main board

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I have a bad main board on a LG 42" TV ( LD42550 ) and I have an extra main board from the same TV but its 32", will it work?


Unfortunately they aren't interchangeable, sometimes power boards are in a situation like this but with main boards you need the same number...the 3642 stands for 42" (last 2 numbers) and the 3632 is for a 32"

Oct 22, 2017 | LG Televison & Video

1 Answer

I have LG 42LN5300 which is reading 230VDC at led + plug and no back lights. All other voltages going to main board are OK, I changed main board because of flickering on and off screen, so is it MB


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.

Jan 20, 2017 | LG Televison & Video

2 Answers

What would cause a black screen on vizio LCD Tv? I have sound 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://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.

Jan 14, 2017 | Vizio Televison & Video

2 Answers

LG tv 55GA6400 has sound but picture keeps going black after a minute or so.


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.

Jan 13, 2017 | LG Televison & Video

2 Answers

Vizio tv 37" picture started to get darker


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.

Jan 11, 2017 | Vizio Televison & Video

1 Answer

No audio or video flashing 2 power 1 opc after relay latch?


Yes,this problem are related to the main Tuner signal board,must change the main Tuner signal board,to solved this problem.Put back your old power supply board too might be still good,but some time the power supply board must have to be replace too,becaused it got corrupted by the data from the main CPU from the main Tuner signal board.

Feb 20, 2013 | Sharp Aquos LC-46D62U 46 in. LCD HDTV

1 Answer

My Vizio VW42L will not power on. No backlights, no power from pson pin. has 5v stand by power on power to main board. no 12 or 24 volt power. has a new power board and inverter boards.


The main board is defective the power on command originates from the main board and thats what gives the signal to start powering up the set. Replacing the main board should solve the issue. You can get the main board from www.tvcircuitboards.com

Jan 02, 2013 | Vizio L32 32 in. LCD HDTV

1 Answer

I need to purchase a main board for a Proview, MDL # HV205 LC TV.


Tries Websites Shopjimmy.com,Ebay.com should have this reburbish Main Tuner board.

Apr 14, 2010 | Proview HV-207 20 in. HD-Ready LCD...

1 Answer

Niko OTP-3211W 32' Mainboard Needed


We don't do email on Fixya and no idea who Jerry is. Keep all replies in the same post by clicking COMMENT under the name of the person you are replying to. Fixya gets 7 million questions a year, so the likelyhood of 'Jerry' seeing are impossible.

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Niko OTP-3211W Main Board DA0VT3MB6E4 21VT3MB0224

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22VV3IB0018 Niko TV Module, signal, DAVV3PI12C4, OTP-3211W

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Niko OTP 3211W main board Google Search

Dec 30, 2017 | Niko OTP-3211W 32 in. LCD Television

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