Question about Likom HD15A 15" LCD Monitor

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Inverter board - Likom HD15A 15" LCD Monitor

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  • andy--g38 Apr 18, 2009

    my monitir keeps going on and off every second and will not stay on at all

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Http://www.pchub.com/uph/category/43/LCD-Inverter.html

Posted on Oct 12, 2007

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I have a Samsung 46 LN46C630K1F CCFL TV with a backlight that doesn't come on. How can I tell whether it is the inverter board or the power supply board that is bad?


Check and replace the damaged components at its back light inverter circuit. What else to look for? If you wish to get more details visit the site linked here. http://electronicshelponline.blogspot.com/ Sometimes the back light inverter board might need replacement.

Feb 20, 2017 | Samsung 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

2 Answers

I have a samsung tv un46eh500 with sound and a dark image...is it backlights?


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. 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.

May 10, 2016 | Samsung Televison & Video

1 Answer

I have a Polaroid 40gsr3000 40 in lcd tv. sound works no picture. think maybe inverter board. One board in middle of back .one long strip board that runs along bottom of tv. Is this inverter board?


What you have is an led tv . And the inverter for the back light led is there in the main board (mother board.) of the tv. Its no a separate board.
The the Log board you see is the TCON board which drives the led panel.
If you wish replace the inverter the you have to bay new mother board for you tv. In the model you have Almost every thing is integrated to the mother board like power supply ,back light inverter board the cpu section.
If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.
http://electro-medical.blogspot.com/

Dec 30, 2015 | Polaroid Televison & Video

1 Answer

Toshiba Regza 42RV535U42" LCD HDTV when i turn it


Check the power going to the inverter board (24V) if ok...replace Inverter board....

Oct 28, 2013 | Toshiba Regza 42RV535U 42 in. LCD HDTV

1 Answer

VIZIOP42HDTV10A . It hadn't picture mean black screen , but hear sound from every channel and all another devices input


hi, Your tv has problem with its back light inverter stage. All LCD TV have back light to illuminate the pixels. There are two types of back lighting CCFL(Cold Cathode Fluorescent Lamp) and LED. In your tv its ccfl. As it is ccfl it need a high voltage above 1000v. To provide such a high voltage there will be an inverter stage in all lcd tv with ccfl back lighting. Normally in LCD tvs there will be three boards such as Mother board , Back light inverter board, and power supply. In your tv the ccfl back light inverter stage is faulty. There will in inverter transformers in the inverter board. As it is high voltage transformer there is possibility of its winding get shorted. If so it will drain a high current from the power supply and the protection circuit will shut down the voltage to the inverter board. check the inverter board first. Also there is possibility of bad electrolytic capacitors in the inverter board will lead to this type of problem. First of all check the supply voltage from the power supply to the inverter board. Change the electrolytic capacitors in the inverter board and in the power supply stage. If the problem is not rectified then you have to replace the inverter board. ok

Jun 10, 2011 | Vizio P42HD Television

1 Answer

My vizio gv42l fhdtv 10a picture flickers like a strobe light, on every input. had the tv since 08. inverter board? main board? Thanks Robert


you need to check first the power supply board whether the output supply 12-24vdc for the inverter board is stable and not flactuating..you can measure the output voltage with a multitester..you get a voltage output of 12-24 with the inverter board is connected or loaded to the system.be carefull of the high voltage at the inverter board..once the output is stable replace the inverter board or you can measure the output of the inverter be very carefull..the output range upto 500vac.be carefull..if the high voltage is stable replace the lamps...tnx and good luck..

Jun 03, 2010 | Vizio GV42L 42 in. LCD Television

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