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I have a samsung lns3251d, that has sound but no picture. I can not access menu. Is this the backlight or power inverter?

Checked connections, menu and inputs

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  • Samsung Master
  • 3,368 Answers

Yes I would think so. Since it is a LCD TV it will need a back light. By shining a bright light on the screen you may be able to see part of the picture. I do not know if it is LED or VF backlight but you are on the right track.

Posted on Dec 06, 2014

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Posted on Jan 02, 2017

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moto34
  • 155 Answers

SOURCE: Samsung LCD Tv

Try this:
Access menu service by press on your command, with your TV OFF:

INFO + MENU + MUTE + POWER ON

Then you should get access to Service Menu.

The last item says: RESET

This will do a reset to the TV.

Make no harm.

WARNING: If when on service menu you feel tempted to "screw" on anything FIRST take note on ALL you change! You can compromise the TV ...

Posted on May 03, 2008

  • 2318 Answers

SOURCE: Insignia NS-32LCD Backlight or Inverter bad???

If you've done the flash light test, it could be the inverter board became defective but it could also be that the power supply does not provide the +24VDC to the back light inverter board.
If you could do the +24VDC test using a voltmeter then we can say for sure that the back light inverter board is defective.
Let me know if you need further assistance.

Posted on Aug 21, 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

  • 66 Answers

SOURCE: Westinghouse LCD tv LTV-32W4 has great sound but no picture.

Your television actually has a backlight bulb which can be replaced at our parts request email and phone number. Email address: Parts@wde.com. (866) 839-5888

Posted on Jul 29, 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

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If there is still sound its the back light inverter, if no power at all its the ccfl

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You have to check whether the back-light inverter gets its proper voltages to function. There as many voltages that controls the back-light inverter. Check these is a skilled work. Contact any experienced service technician. If you are not familiar with electronics, do not attempt to repair. Whether you suffer fatal electrical shock! Instead, contact the nearest service center.

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I have a 1 yr old samsung flat tv that has a sound but no picture..how can i fix it. i am in an isolated island here in basco, batanes philippines with no experts in repairing flat tv.pls advice. tnx


Hi,
Kung LCD TV ang unit mo, 3 ang dahilan kung kaya la kang picture.
1. Me pundido kang backlight - kapag me pundido kang backlight kusang pinapatay ng power supply ang inverter board para hindi ma-overload kaya la kang picture. Maaring mong i-check ang backlight, ang palatandaan na ito ay pundido ay kapag me itim sa magkabilang dulo.
2. Sira ang inverter board - ang inverter board ang nagbibigay ng high voltage sa backlight. Kapag sira ito, natural d gagana ang backlight. karamihang sira ng backlight ay ang high voltage transformer, driver transistor o kaya me open na fuse/fusible resistor.
3. Power supply- kapag la supply voltage sa inverter board, la ka rin picture. Mas maganda kung ito ang sira dahil mas madali makhanap ng pyesa dyan sa lugar mo di katulad ng 2 nauna.
Kung me kakilala kang technician dyan malapit sa lugar nyo, patingnan mo yong mga sinabi ko. Maari ring dahil sa loose connection kaya la ka picture o kaya bad solder joints.
Salamat kapatid sa pagboto 4 na hinlalaki.
Jdvillanueva
Las Pinas NCR.

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Ur LCD inverter backlight board is dead.Replaced this LCD inverter backklight board.U will get ur picture back.Tries websites Shopjimmy.com,Ebay.com to buy a refurbish LCD inverter backlight board for the replacement.

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Samsung monitor picture clicks off after 2-5 seconds...


Yes, It sounds like the backlight inverter circuit is shutting down. No inverter power, no backlight. On some monitors the inverter circuit will shot circuit the power power supply which makes the power light flash on some it just kills the backlight. You can usually check with a flashlight. Hold the flashlight pointed at the screen and see if you can see any of the icons or background picture. If you can then it is the backlight circuit or backlight tubes, usually the circuit.

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