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Hi i have a Samsung model UN46EH5300FXZA. The backlight went out. But im not finding the backlight inverter do you think its on the powerboard? no info anywhere about a backlight inverter anywhere

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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/
In some models of LCD TVS; the backlight inverter and its T'Con board will be a part of the panel itself, and will be a built-in type inside the LCD panel. If so, they can't be replaced. In this case; a panel replacement is the only repair. For some other models, the backlight inverter section circuit will be a part of the main power supply regulator [SMPS]. To such sets, the power supply section circuit too should trouble shoot. Contact any service technician. The circuit will differ with models and versions.
Type in the brand name of your device, in the search box [at the top right] of the display window and the Search will start at once as you type in, and will show you all the related posts. It will make surf easy.

Posted on Apr 16, 2015

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  • Samsung Master
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Hi Stephen,
Yes it is very much on the power board. There is a connector CLN 802 at the rhs corner opposite to the AC input side.

Posted on Apr 15, 2015

  • Sp Gupta Apr 16, 2015

    Hi Stephen, Any progress?

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SOURCE: no picture

do youw ant to sell the tv

Posted on Apr 26, 2009

  • 1 Answer

SOURCE: part number for the samsung le52m87bd backlight inverter

Hey!

I also have a SAMSUNG LE52M87 LCD TV and I have the same
ANOYING BUZZ comming from ( I think ) backlight converter. - I am
almost 100% that its because of the backlight inverter while the sound shifts frequency when backlight is changed ( from 1 - 10 ), but the volume of the buzz stays the same. Only the tone changes. I have this TV for a year now and havent realy noticed until now, so I think it started buzzing recently, because I didnt hear it before ( and I got realy sensitive hearing :) ) ...

ITS DRIVING ME CRAZY ...

PLEASE post what happened when ( if ) you changed the inverter,
or what did you do to solve the problem ...

Many thanks in advance!

Eddie from Slovenia

my email: Ldesign.marketing@gmail.com


Posted on Jan 08, 2010

gopakumarg43
  • 74383 Answers

SOURCE: viewpia lcd tv backlight not working

Measure the input voltage to back light inverter board, from the main power regulator board. If it is found OK, replace back light inverter board.

Posted on Jul 30, 2012

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I have a 46inch samsung tv model number UN46EH5300FXZC, i have sound but no picture can see slightly with the flashlight test, no backlights, i can't find many parts for this tv wondering if it has...


Capacitors can look fine but capacity measure is real and only good to do to measure with a no-lie capacity meter minimal like this kind of capacity meters. not only bulged convex topped capacitors to find in Samsung even the 2 and 3 watt green colored resistors can have faltering end caps on some of the resistors thats not to see but only on thermal failure or manipulate with a wooden object beginning out of the power supply loose cold solderings on the supression beats coils in the backlight inverter are for years a common problem where the wires are made not good free from insulation lac on outside soldering end on the wire are faltering and can be loose a little manipulating on coils and the 2 or 3 w resistors beware by manipulating it can give back an ccfl start even if the endcaps can be loose that are faltering much more other brands have had that same problems with the same kind of coils (not the step up transformers )seldom that step up transformers themselves are the problem whether smd components in Samsung are not so common as LG televisions with a much more complex repair problems then Samsung , but capacitors are no longer generally havelifetime in Samsung devices than 6 years at the most but are often rather common and not always that they are leaking to be Taiwan and Korean capacitors have factory brands and have even a too tight tolerance choosen tjhe max power , if replace choose capacitors at least 10 / 15 volts higher on the same capacity if replace , if the body format size will in most case be the same to mount between other components and look for service manual for measurement control the power supply first all of the fuseable resistors to find before find cold solderings or leaking bulged or deformed capacitors the fuseable resistors are vertical mounted resistors or some higher mount on the print placed resistors in most case on a lower resistance to find almost always that are 1 or 2 ohm resistors.
Beware Backlight inverters are having high voltage to the ccfl tubes if some capacitors are to low on capacity to find measure on difference between the upper and bottom step-up transformer coils is very likely to do if a capacitor is no longer have a self-restoring the range of the backlight power can become too high and the transformer on one side upper or bottom can be blow up. and then there is an protection too find when the upper tube rail and bottom rail are pull a little out the topside and bottomside of the screen a pull a little out if you start the television in a little time you see a short flash then the backlight inverter is having a similar problem it goes in protection.
Best if one transformer is defect go for a refurbished print and if a new backlight inverter is neccesary and will prevent for new time of 4 years the same problem replace capacitors by Nichicon Rubycon Elna frako Nippon Chemicon or even Jamicon or brands with a good long lasting dielectricum more then 10 / 15 volts higher choosen, all the marketing technical choices by brands are choices to have an existence, its free to choose also for a new backlight inverter if repairs or have no experience in soldering .


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1 Answer

I have a Samsung LED TV, and the screen went out (but sound was OK & if you hold a flashlight to screen you can see faint picture). Replaced the power supply board, but still no picture. Any help?


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.

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Samsung TV Model UN46EH5300FXZA Amazon Video Registration Code where do I find it?


I would enquire at Amazon for that, there customer service is very good.

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: Samsung UN46H5203AFXZA version TD01 ?


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.

Oct 10, 2016 | Samsung Televison & Video

1 Answer

Viewpia lcd tv backlight not working


Measure the input voltage to back light inverter board, from the main power regulator board. If it is found OK, replace back light inverter board.

Jul 27, 2012 | Televison & Video

1 Answer

HI I have a 3 yr old Samsung LN3242 LCD Tv. Last night the picture on the tv went out and a high pitched squeal started. By the time I got up to unplug the tv smoke was coming out the back. I unplugged...


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.

Mar 23, 2017 | Samsung LNT3242H Television

1 Answer

Part number for the samsung le52m87bd backlight inverter


Hey!

I also have a SAMSUNG LE52M87 LCD TV and I have the same
ANOYING BUZZ comming from ( I think ) backlight converter. - I am
almost 100% that its because of the backlight inverter while the sound shifts frequency when backlight is changed ( from 1 - 10 ), but the volume of the buzz stays the same. Only the tone changes. I have this TV for a year now and havent realy noticed until now, so I think it started buzzing recently, because I didnt hear it before ( and I got realy sensitive hearing :) ) ...

ITS DRIVING ME CRAZY ...

PLEASE post what happened when ( if ) you changed the inverter,
or what did you do to solve the problem ...

Many thanks in advance!

Eddie from Slovenia

my email: Ldesign.marketing@gmail.com


Oct 06, 2008 | Televison & Video

1 Answer

Picture gone from TV Model LE46M51B


I suspect that your backlight has gone out. If you shine a light on the screen can you see remnants of the picture that should be displaying? If so, it's definitely the backlight, and most likely the power inverter for the backlight. You can probably find a replacement inverter, but you may need a repair manual to install it. I'd recommend checking the warranty status first and sending it in for repair if you can.

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