Question about Samsung LN-S3251D 32 in. LCD HDTV

1 Answer

Kls-320ve-j inverter/backlight board

Does this unit require 24v ac or dc and at what ampage please
i read from the data sheets that pins 1-5 require 24v and that 6-10 are ground.

as the unit is an inverter, does this require -24v or +24 volts 10 pins 1-5

thanks

andy

Posted by on

  • 1shaddow1 Mar 17, 2008

    as the unit is an inverter, does this require -24v or +24 volts 10 pins 1-5

    should read....



    as the unit is an inverter, does this require -24v or +24 volts to pins 1-5

×

1 Answer

If you have to ask these questions then you should leave it alone. The high voltages produced by this board are LETHAL ;)

Posted on Aug 19, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have an Insignia LCD 32", is it common to only get 3 volts dc on one pin only on the power supply board (6HA0112014)? I tried a board from River Valley Electronics and got the same thing. What are...


That may be the stanby 3vdc for the main board, the main board will send out PS-ON signal when the power switch is activated which will turn on the rest of the power supply sections such as the 24vdc for the backlights inverter board and 12vd for main board, 5v for the logic circuits, etc. If the Inverter board has short cicruit, then it will cause the power supply to go into shutdown mode. You can disconnect the cable from the power supply to goes to the inverter board to see if you get the 24v, 12v to turn on.

May 18, 2011 | Flat Panel Televisions

2 Answers

The screen went black but still sound


The tv have the 1 or 2 long boards,call the LCD inverter boards.These 1 or 2 long LCD inverter boards help the LCD screen panel to have a backlight to produre a picture.These 1 or 2 long LCD inverter board are dead.Tries websites like Shopjimmy.com,Ebay.com to buy these refurbishes 1 or 2 long LCD inverter boards for the replacement.

Oct 14, 2010 | Samsung LNT3242H Television

2 Answers

I turn on my tv and then acouple of min later the screen goes black perfect sound no picture and power button lights up with a sun like looking symbol in red


hartbriqitte, Internal ac to dc power supply printed circuit board failure. The +12vdc source may be in shutdown mode and can not supply dc to the inverter circuit that produces ac voltage to light-up the cold cathode fluorescent lamps that produce WHITE light so you can see what is on the lcd panel!! 12fixlouie

Sep 24, 2010 | Flat Panel Televisions

1 Answer

I have no picture


Check to see if the AC ADAPTER is outting out the 24vdc for the backlight inverter board, you may also have the problem with the inverter board itself.
First, look at the screen in darkened room to see if you can see any slight glow from the screen, if it does, then the problem can be the T-CON (not getting the 12vdc) or the main logic board not feeding the signals to the T-CON board.
if not, next place to check will be the power supply module, make sure it has 24vdc which is required by the backlight inverter to work, the reason for not having 24vdc can be from bad DC filter caps (leaking/bulging top, high ESR) or short circuits in the inverter board which will cause the 24vdc supply to go into shutdown mode, so you may have to disconnect the power cable that feed the inverter board to see if the 24vdc will work without the inverter board hookup, you will need to apply about 3~4 amp of load to the 24vdc to make sure it can handle that. There are fuses on the backlight inverter boards also. So there are some troubleshoot you will have to do to find out the causes of the problem you are having.

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx

Aug 03, 2010 | Protron PLTV-32 Television

1 Answer

I have no 24v and 12v on a dell w3000 tv


Incase the inverter board has shorts circuits that caused the 12/24vdc power supply to shut down, try disconnecting the power cable from the power supply that goes to the backlight inverter board to see if the 12/24vdc come back, if not, you need to find out if the power supply is getting the PS_ON signal at one of the power supply connector (you will have to trace out the board to see which pin that will be unless it is labeled on the Power supply board). No bad DC filter caps that you can see?

http://www.shopjimmy.com/catalogsearch/result/?q=Dell+W3000+

If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide

http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

Parts: www.shopjimmy.com

Please post back what you find.

Jul 22, 2010 | Dell W3000 30 in. HD-Ready LCD Television

2 Answers

Black screen


Now tv turn on?Have a picture flickers a few sec. than just died,have only sound left?Yes,than the 1o 2 long board call the LCD inverter boards are dead.These 1or 2 long LCD inverters require changing to help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those 1 or 2 long LCD inverter boards for the replacement.

Jul 22, 2010 | Insignia LCDTV26 26 in. Television

2 Answers

The screen stays black (no image) while sound is OK


Ur tv now turn on,have a picture flicker a few sec. than dies,just have sound left?Yes,than the 2 or 1 long boards call the LCD inverter boards are dead.The 1 or 2 long LCD inverter boards,these 1 or 2 long LCD inverter boards help the LCD screen to have a backlight to produced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy a those 1 or 2 long LCD inverter board for the replacement.

Jul 15, 2010 | Olevia 227-S11 27 in. LCD TV

1 Answer

Fuse and power supply look ok to the eye slight static sound on audio tiny flash intermitent inright corner on video, any clues? power diods check good ,nothing looks hot or burnt There is a second board...


Your power supply on the dc output should have the floowing DC voltages, 5v, 12v, and 24v. Just start probing the connectors of the power supply. 24v is needed for the backlights inverter board, 12v for sounds, 5v for logic board.

Dec 09, 2009 | Audiovox FPE3206 32 in. LCD Television

1 Answer

Sound is good but no picture


If there is no backlight (check it in a dark room - if there's a backlight the display will be emitting light, albiet still all dark) then you're looking to replace backlight inverter (or two of them, if it's master/slave) OR the power board. To know which of the two, measure the voltage on the cable that comes from the power supply to the LCD backlight inverter board - it has lots of cables but most of them are split in 2 groups - ground and positive usually 24V. It's fairly easy to see which are which, especially on the power board.
So if there's 24V there then it's the inverter(s) and if there's nothing then it's likely the power board; it's a little tricky, though, because the main board may turn off the backlight power - so make sure you check the voltage when turning the TV on from off and watching the read.

If there *is* backlight then you;re looking at replacing the tcon board or, less likely, the main board or, least likely, the cable between them.

Please rate my response if it helps.

Nov 06, 2009 | Vizio VO42L 42 in. LCD TV

Not finding what you are looking for?
Samsung LN-S3251D 32 in. LCD HDTV Logo

Related Topics:

341 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Flat Panel Televisions Experts

xxxxxx xxx

Level 3 Expert

4706 Answers

Steve McIntosh

Level 1 Expert

11 Answers

brian more

Level 1 Expert

28 Answers

Are you a Samsung Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...