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How to replace a backlight inverter board on Samsung P2270

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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rlamkin
  • 44 Answers

SOURCE: Replacing backlight inverter board

Not always but usually the inverter board is part of the display panel, way to much money to bother fixin.

Posted on Jul 03, 2008

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Shuttle83
  • 1139 Answers

SOURCE: Inverter opertion

Hello davidweldon,

If the inverter board is bad, I would suggest that you replace the whole board unless you have a SMD (Surface Mounted Device) rework station, and a background in electronics. I have worked on TVs where people have tried to remove SMDs and it never is an easy thing to do, so I would again suggest that you replace the whole board, because all of the components are SMDs.

Now as to your question, I have seen on these sets the majority of the time it is a driver transistor that goes bad.

I hope this helps,

Thank you,

Shuttle83
www.electron-age-technologies-llc.com

Posted on Nov 28, 2008

  • 58 Answers

SOURCE: "Upgrade" of Backlight Panel

just replace what failed.
I replace the surface mount FETs on the inverters.

Posted on Dec 06, 2008

  • 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

  • 1684 Answers

SOURCE: I have the same power supply problem on my

Hello,

You may be able to repair the board instead of buying a replacement board. If you are up to a little soldering it may save you a good bit of money for the repair. If you are interested just take a few pictures of the boards and email them to us at tech@ccl-la.com We will check them out and give you some pointers on what to do. Most power supply issues with the blinking power lights are caused by blow capacitors on the power board. These are fairly easy to replace and the replacements are less than $20 usually. To get an idea what capacitors are and what will need to be do to repair you unit check out our pages at :http://www.ccl-la.com/blog/index.php/capacitors/ You may want to look over the repair guides for other units we have posted too. If you need parts we can also supply them for you. If you have any additional questions just contact us at: tech@ccl-la.com

I hope this helps, If so please rate our solution.

CCL_Tech
Corporate Computer
www.ccl-la.com

Posted on Apr 19, 2010

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The symptoms you described would indicate the backlights are not working.

The 2 main reasons are the backlight inverter board has gone or the backlights have blown!

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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.
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You have to check all the voltages, that comes from its main power supply board, to its back light inverter board. These is one pin at the backlight inverter board; comes from the main board; which controls the back-light inverter to start and off. This voltage is generated at the main board, and send to the back-light inverter board, as control voltage. It will be best to contact any service technician. If you wish to get some details; check the site linked here.Viewing it in "Mosaic" will make surf easy.
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Check the backlight inverter board. It is faulty. There is no repair to these boards, if the inverter transformer on it is damaged. Card base replacement only can be done. To get more details, http://electronicshelponline.blogspot.com/

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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.
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