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I need a main board for a 40" lcd flatscreen - Computers & Internet

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Posted on Feb 01, 2010

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Fix back light inverter on my 40" ELEMENT led flatscreen tv. Model ELEFW408


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.

Jan 06, 2016 | Element Electronics Televison & Video

1 Answer

Why does my 32 inch emerson flatscreen tv Lc320em9 B stay on 3-4 mins then turn off by itself?


Fault with 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/

Jul 27, 2015 | Emerson LC320EM9 32 in. LCD HDTV

2 Answers

I have dynex 40L261 40" Flatscreen LCD TV. I won't turn on. I've no picture and no sound


Fault with the main power supply regulator 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.

Feb 18, 2015 | Dynex Televison & Video

1 Answer

Had a power surge come i to the house and pop a 40 inch rca lcd flatscreen. i replaced the ccp-508 power board twice from ebay. tv worked when i first plugged them in but then stopped after about 30...


You may have a board such as the main board down the line that is loading the power board and burning it out. Try it with no other boards attached to it. If it still goes out see if you have problems with the input power cable. It could be this but sounds like a board down line is loading your power board and burning it out.
Gillight

Dec 03, 2013 | Televison & Video

1 Answer

I have asharp aquos 45in flatscreen tv it comes on and the picture is fine but i have no sound what can be the problem?


The sound can be muted or the sound is directed to a port that you don't use. The main board controls the sound, so if it's not muted or misdirected, then replace the main board.

Mar 26, 2013 | Sharp Aquos LC-45GX6U 45 in. HD-Ready LCD...

1 Answer

My samsung flatscreen will all of a sudden turn it self off and on , start turning channels and the red light on the front will be blinking


It sounds that the main digital board to your TV is damaged. It will be best to get this set repaired by the authorised service center for Samsung, because, the work is a skilled one, need so many service adjustments after the board replacement.

Jul 12, 2012 | Samsung LA40A450 40 in. LCD TV

1 Answer

Samsung 40 inch lcd screen goes black just got sound


most likely the main board is defective but it could also be the lcd panel itself or the lvds cable.probably will need a service call to determine problem.

Oct 28, 2009 | Samsung LE40R72BDX 40 in. HD-Ready LCD...

1 Answer

My sony flatscreen-bravia


If you can bring up the TV menu, it's probably the video board. If the won't come up, it could be the LVDS cable or the LCD panel. Either way I recommend a qualified service tech take care of this.

May 01, 2008 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

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