Question about Dynex DX-LCD32-09 LCD TV

1 Answer

My dynex tv has sound but no picture it happened a day ago i found that the problem might be the backlight inverter board if so how can i fix it

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Mentor:

    An expert who has written 3 tips or uploaded 2 video tips.

  • Expert
  • 305 Answers

Test: You might see a pic by shining a bright light against the screen. (Halogen can burn a spot if too close for too long like 15 seconds). If so, you probably have an inverter, backlight tube or coil/driver board problem. Some of these units have a bad ground on the tube driver coil board which can be shimmed and/or tightened. Sometimes a simple car light tester (continuity tester with a 12v bulb) from casing/mount ground to any of the - side of the backlight driver coils will light the screen and reveal if and which tube is non functional. I leave one dome light running in such ground position one of my TVs at all times for regulation and night dimming.

Posted on Feb 28, 2011

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE:

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Replacing a Vizio Backlight Inverter


I have a television that did this. The picture went out but it continued to have sound. It was the projector bulb. I ordered from a dealer on ebay, very resonably priced. It came with instructions on how to install it and was a very easy fix.

Feb 25, 2012 | Vizio 42 in. LCD TV

1 Answer

Two days ago my tv stop showing pictures but I can swicth chanels, iIcan hear sound but can not see anything. Can you tell me why and should i do?


Now tv turn on,the picture flashes a few sec. than picture dies and only have sound left?Yes,than the tv have 1 or 2 long boards,that are call the LCD inverter boards are dead.These long 1 or 2 LCD inverter boards job are to provide a backlight to the LCD screen panel to produce a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 1 or 2 long LCD inverter boards for the replacement.

Mar 28, 2011 | Dynex 32 in. LCD Flat-Panel HDTV

3 Answers

My 47LG50 is just over 2 years old, about 30 days ago I started to lose the video/picture At first it happeded every once in a while, now it is every 5-8 minutes. I can turn it off and turn back on and it...


This problems it could be those 2 long LCD inverter boards are dead,so it is not giving ur tv LCD screen panel the backlight to produce a picture or the tv Tuner signal board itself is the problems it dead.That the board,that take in the incomming broadcasting signal wire ur case the HDMI or Component cables.Take out the incomming broadcasting signal to the tv,turn on the tv,now tv have no picture,it should have a loud white static picture noises for good more 5-8 mins,than problems it not the tv Tuner signal board.Than it is those 2 long LCD inverter boards are dead.Tries websites like Shopjimmy.com,Ebay.com to buy refurbishes 2 long inverter boards or the tv Tuner signal board for the replacement.

Mar 25, 2011 | LG 47LG50 47 in. LCD HDTV

2 Answers

My Westinghouse SK-32H540S pictures shuts off after 10 seconds. the sound stays on but no picture. is it the troubleshoot? i tried unpluging everything and repluging it and still the same thing happens...


This problems are the tv 1 or 2 long LCD inverter boards are dead.These 1 or 2 long LCD inverter boards provide the tv LCD screen pannel a backlight to produce a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbishes 1 or 2 long LCD inverter boards for the replacement.

Mar 24, 2011 | Westinghouse SK-32H540S 32 in. LCD TV

1 Answer

Picture goes out but sound remains. After restarting picture is back. Recently the picture would not come back after restart. Next day it worked again.


The tv have 1 or 2 long LCD inverter boards are dying.These 1 or 2 long LCD inverter boards help the tv to have a backlight to produce a picture on to the LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy those 1 or 2 LCD long inverter boards for the replacement.

Mar 23, 2011 | Dynex DX-LCD32-09 LCD TV

1 Answer

Sound but no picture


Now tv turn on,it have pictures flashes few sec.and than dies have sound left only?Yes,the tv have it 1 or 2 long boards that call the LCD inverter boards are dead.These 1 or 2 long LCD inverter boards help the LCD screen panel to have a backlight to prduced a picture.Tries websites like Shopjimmy.com,Ebay.com to buy those refurbihes 1 or 2 LCD inverter boards for the replacement.

Feb 03, 2011 | Dynex 19 in. LCD Flat-Panel HDTV

1 Answer

My dynex tv has sound but no picture it started a day ago i read that it might have something to do with the backlight inverter board if thats the problem how can i fix it myself


It can be backlights inverter, main board, 24vdc power supply, T-CON board. You need to do this first and go from there, you will need replacement board for sure if you will not do the repair down to components level.
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 is some troubleshooting 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:

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors: http://s807.photobucket.com/albums/yy352/budm
Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague
Parts: www.shopjimmy.com
Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps.
Or www.digikey.com, just make sure to use caps with low ESR, 105c, high ripple current and long life rating such as PANASONIC FM or FC series.
Please post back what you find.
Please leave rating if it helps.

Jan 27, 2011 | Televison & Video

1 Answer

T.v.powers up, sound but no pic. t.v. is only 3 months old.


Tv have a dead long board call the LCD inverter board.This long LCD inverter board,help to get a backlight to the LCD screen panel,to produced a picture.Tv only 3 months old,take ur warrenty repair,call the Dynex corp. for warrenty repair.

Oct 16, 2010 | Dynex DX-L22-10A 22 in. LCD TV

1 Answer

Dynex tv no picture screen comes on and then goes black


There are two places to look for the problems, the backlight inverter board and the power supply. Look at the power supply first since it is easier to get to, look for burnt parts, bad capacitors, etc. Look for 5vdc, 12vdc, and 24dvc.
http://en.wikipedia.org/wiki/Capacitor_plague
Please post back what you find.

Dec 18, 2009 | Dynex 32 in. LCD Flat-Panel HDTV

1 Answer

No picture when I turn the tv on but have sound. If I turn the TV off and on again I get the picture.


It can be that the backlight inverter board is going out or the power supply that supply the power to the inverter board is going out due to bad filter capacitors.

Oct 31, 2009 | Dynex DX-LCD37 TV

Not finding what you are looking for?
Dynex DX-LCD32-09 LCD TV Logo

1,189 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dynex Televison & Video Experts

The Knight
The Knight

Level 3 Expert

76099 Answers

Cindy Wells

Level 3 Expert

5938 Answers

Jaime Hernandez

Level 3 Expert

2337 Answers

Are you a Dynex Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...