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Problem with rca lcd tv replaced power supply and main board still nothing i have removed all other wire except on main board and power supply leaving the only things operating is just the 2.

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  • Brad Brown Dec 07, 2016

    Hi Charles Shoemaker, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? model number

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6 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 70 Answers

SOURCE: Philips Magnavox 37" LCD Flat

Disconnect the LVDS Cable that runs from the small signal board to the display panel and apply power,if the screen comes on,the Small signal board (aka Scaler Bd ) is the faulty board. other than that,all that's really left that has gone bad for me is the logic board.

Posted on Jul 07, 2009

  • 195 Answers

SOURCE: olevia 437-s11

Most likely the CCFL inverter has been the problem all along....

Posted on Oct 10, 2009

  • 1 Answer

SOURCE: Power Supply Board for SAMSUNG 40" LCD TV Model LA40R81BX

You'll find some Samsung power supply boards here : http://www.usefulparts.com/index.php?main_page=index&manufacturers_id=11&sort=20a&filter_id=98&alpha_filter_id=0
but you have to open your TV first and find out model number

Posted on May 10, 2010

  • 2 Answers

SOURCE: My VP504fhdtv10a vizio plasma TV when connect

Logic Control D Board got nothing to do with this problem. This is your main power supply gone bad(usually not the sub power supply). I just repaired my VIZIO by replacing main power supply. Just remove back cover and your board will be right in the middle of the screen. Just get board part/serial # and google it. My best price was through eBay(around $100). Everything is fine now.

Posted on Feb 07, 2011

SOURCE: Vizio 42 in L42HDTV10A no power no lights no nothing

You can look at the various module failure symptoms and service / replacement options for the L42HDTV10A here:
http://www.coppelltvrepair.com/search?Q=l42hdtv10a&As=false&Pf=&Pt=&Sid=false&btnsearch=Search

Posted on Apr 25, 2013

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1 Answer

I have an RCA led42b45rq. The backlight on the left side of the panel is temperamental. It usually doesn't light up when the tv is turned on but I can get it to turn on after a little while


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.

Mar 06, 2016 | RCA 42" Class LED-LCD 1080p 60Hz HDTV,3.5"...

1 Answer

Power supply or main board ? RCA flat screen


At a guess, main board. I agree if power supply board is bad, you won't get DVD working.

Dec 31, 2015 | RCA 26LA30RQD 26 LCD TVDVD Combo

1 Answer

I have a RCA L32hd41 LCD TV that flickers occasionally but mostly stays blacked out with no picture or audio. It used to flicker for about a half an hour then it was fine but now it won't even light u


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.

Sep 23, 2014 | RCA L32HD41 LCD TV

1 Answer

Rca 46la45rq has backlight and power but no sound or picture replaced main and inverter boards


Was this the original problem before replacing the main board?
Maybe you have to set the new main board from maintenance menu. Sound and image comes from the main board, so i believe it has to be something about it...

good luck

Aug 31, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

Rca tv powers up has backlight no sound or picture replaced main board and inverter


I would check the input board for correct power supply input
check the blue 15pf 6kv caps near the output from the PSU to the inverter.

Aug 31, 2014 | RCA 46 46LA45RQ LCD TV

1 Answer

Polarold Flat screen tv went out while I was watching it. Will not power up, changed fuse and power cord and nothing


The main power supply regulator board to this TV should be checked for fault. Check it, and replace damaged component/s, or, replace this board as card basis. If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy. http://electronicshelponline.blogspot.com/

Jan 11, 2014 | RCA L37WD12 37 in. LCD HDTV

1 Answer

I have a Sony Bravia LCD tv an it won't turn on at all the standby light is not even there I've tried turning on an off and leaving unplugged for an hour still nothing.? Help,


You either have a problem with your power supply board or main board. I would start with having the power supply fuse checked as well as the power supply board!

Jan 26, 2013 | Sony BRAVIA KDL-40S2000 40 in. LCD HDTV

1 Answer

RCA LCD TV 26 screen turns white, no sound no nothing


You have a blown fuse in the power supply. It does not look like a fuse.
It is near the top of the board and is labeled as 1.6 amp. It supplies 12
volts to the main board (via q422). A 2 amp fuse should be a fine
replacement.

Sep 04, 2009 | RCA L26WD26D 26 in. LCD TV

5 Answers

Rca L32hd31 lcd no picture blank screen.


Your mainboard is damaged, replace it and that will solve your issue.

Jun 06, 2009 | RCA L32HD31 32 in. LCD HDTV

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