Question about Computers & Internet

1 Answer

Samsung le40d503f7w only displays samsung logo on screen for a few seconds after switching on and then goes blank

This lcd tv has been dropped. To all intents and purposes it seems ok screen back light controls etc but it will only display the samsung logo for afew seconds after switching on and then goes blank sound ok

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

Have the same problem, one or more of the flourecent light bulbs in the back panel got broken, looking for a supplier who may keep these bulbs in stock, or other wise will see if i can get a used one off ebay for spares.

Posted on Dec 05, 2012

Ad

6 Suggested Answers

6ya6ya

6ya staff

  • 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
sandrew

andrew pester

  • 2961 Answers

SOURCE: LCD Monitor turns off or goes blank after a couple of seconds being on

An all too common problem with lcd's, you would think they would be more reliable after being on the market for years, alas they are not. See if it does the same thing on a friends PC if you are able; if so the you will know the lcd is faulty.

Posted on Nov 12, 2006

Anonymous

  • 33 Answers

SOURCE: aoc lm725 display off after few seconds

I've had a very similar issue on many Dell Monitors. Mine have been under warranty and they usually send me a new monitor, but I believe the issue lies with the power supply within the monitor.

Posted on Jul 10, 2008

Anonymous

SOURCE: Dell E173FPb 17" TFT LCD Flatpanel

Video cards that can handle two monitors at the same time have cables with two plugs on the monitor end.

If your video cable has two plugs on the monitor end, try the other plug.


Posted on Dec 30, 2008

Anonymous

  • 8 Answers

SOURCE: screen goes blank after few seconds

Yeah, for most of you it's definitely the caps. The three that are 470uF and the one 330uF.

Don’t just replace them with new ones of the same type, they will just blow again. Use ones with a higher voltage rating. you can also use ones with slightly higher uF (they are just output caps for the SMPS). Mine are at like ~530uF and its holding strong.

If your having trouble with brightness there is a jumper that lets you change the amount of power going to the cold cathode bulbs. It is right next to the three bigger caps. it has three settings, 6.5mA, 7mA, and 7.5mA. it should be set to 6.5mA by default. The bigger numbers are brighter, but remember to crank your brightness all the way down before changing this jumper as 6.5mA with maxed out user brightness is the same thing as 7mA all the way down.

These are good monitors as far as stats and usability. They just have defective parts. I was amassed with how "defined" the picture is per-pixel considering it's VGA.

-Oblivion

Posted on May 06, 2009

sys_admin

Milind Shetti

  • 829 Answers

SOURCE: screen goes blank after a few seconds

Hi ,
The monitor flicker problem. The monitor when turn on will display image for couple of second then turn black. The monitor status led is still green. This will happen each time it is turn on. The symptom at appear to come from the inverter board.

Posted on May 10, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

My LG tv will go on then after a few seconds the screen goes from black back to picture of and on a few times then shuts off. Help!


LG LED TV has no picture (black screen) but still sound ...

www.tomsguide.com/answers/.../led-picture-black-screen-sound-fixed.ht...
7 days ago - My 32' LG LED TV has suddenly lost picture! The sound is all right but theScreen is pitch black. After switching it on the picture flashes for a second and thenthe ... LG LED TV has no picture (black screen) but still sound - can it be fixed? Tags: ... a touch on the screen reveals nothing so it's not the back light.

Monitor going black after 2 seconds [Solved] - CCM.net

ccm.net > Forum > Hardware
Oct 9, 2012 - Brightness goes down, display draws less juice, and you can at least use .... it's the LCD's Inverter ... you have to replace it for it to go back to ... If the screen is turning off every two seconds or so and then it comes ... i turn my tv on it comes right on, but then after a few minutes turns off, .... Digital Trends for LG. No display in monitor
Jan 11, 2013
Ps3 and hdmi cable
Oct 8, 2012
More results from ccm.net

TV with Black Blank Screen Repair How to Troubleshoot ...

? 3:16
https://www.youtube.com/watch?v=kFdVi2ejfzA

Dec 20, 2015 | LG Televison & Video

1 Answer

Why does screen go black after a few seconds


Hope this helps.... Your monitor has an inverter issue. You know it's an inverter problem when:
1. Your monitor starts normally and displays the startup/desktop screen for a while.
2. Then it suddenly goes off, leaving a blank (black) screen or a very dim display.

To fix this black screen problem, change the inverter board (based on your monitor brand).
Source(s): http://lcdmonitorrepair.annics.com

May 05, 2014 | ASUS VK193D LCD Monitor 19-inch - Black

1 Answer

Hello, I have a lg lcd monitor. w1941s model. when I start my computer, it work for sometime. then it goes blank showing only the LG logo. then the power button doesnot work. it hang up glowing. again


If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Take it to a repair shop.

Apr 06, 2014 | LG Computers & Internet

1 Answer

Lcd t v troubleshooting


Probable power supply failure.

Dec 31, 2013 | Computers & Internet

1 Answer

Can't get rid of LED TV logo on Samsung TV


Apparently it's on demo-mode so you have to go to 1. Set up 2. Plug and play 3. Then change to home instead of demo

Jan 27, 2012 | Samsung 32 UN32D4000 LCD TV

1 Answer

The samsung t240 syncmaster when switched on shows Samsung Logo then displays for 2 seconds then goes dark. I can barely see some settings to change but trying to change these has no effect. When I switch...


Is this a laptop?
This a common problem for monitors, especially on laptops. This cause by the inverter board. The inverter boosts voltage to light the screen. When goes bad they go bad they often work for a few seconds. If you look closely you can see the screen but the voltage is not there to get brightness.

Dec 06, 2017 | Samsung SyncMaster T240 Monitor

1 Answer

Dear Sir, I am facing problem with my Samsung LCD monitor, when I switched on my Computer it shows the bootup screen, after booting the LCD screen goes blank, when i turned off the monitor and again turned...


yes turn on the computer and keep pressing F2 contineulsy immediatly after display observed then menu will be come then highlight on last good known configuation and press enter problem will be solved

Mar 05, 2010 | Samsung Syncmaster 730B 17" Flat Panel LCD...

1 Answer

Samsung TV problem - Blank screen after one second.


Ur LCD inverter board is dead.Part and labors about $200-$300 dollars.

Jan 07, 2010 | Televison & Video

1 Answer

Picture goes blank after a few seconds of turning on power


check if the back lamps are still on when you lose image, all you have to do is get close to the screen and make is totally black and if is not that means you have a back light working, but if the back light is gone you may have a defective panel.

talked to samsung TA about the same problem I had and the recommend to replace the power supply first to confirm a defective panel because a panel is quite expensive

May 24, 2009 | Samsung LN-T4665F 46 in. LCD Television

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

280 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Ekse

Level 3 Expert

13434 Answers

Marvin
Marvin

Level 3 Expert

85222 Answers

Brad Brown

Level 3 Expert

18154 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...