Question about Samsung T240HD 24 LCD HDTV

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Dark screen i am having a problem with my monitor when i first turn it on it goes though its reglear cheacks but you know how it gets real dark then when it finds its right source it goes to the rightmode well it real only stay bright for about 1sec..then it goes back to dark screen i have cheacked everything mike.

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The problem of the screen is the eider ic , or the capacitor due to overhitting....

Posted on Mar 03, 2010

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Screen comes on then goes dark turn it back off and same thing comes on and then goes dark you can barley make out imagies on screen


If you plan to DIY repair, then please read below and look at the pictures at the link I provide so you will know what to look for inside the monitor.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

May 10, 2010 | Computers & Internet

1 Answer

Screen turns off seconds after image is displayed


are using dvi cable is yoour out put on the cpu ok video out video card ect u test antehr screen on it test this one on differnt one if it bad its bad u cant usally get parts for these priotory

Feb 04, 2008 | Acer AL1916W 19" LCD Monitor

1 Answer

Screens goes dark after 3 seconds


Your power supply probably has a blow electrolytic cap on it.

You need to pull the power supply board out and have someone replace the electrolytic caps on it. Believe me....if the one for the brightness is bad...they are all suspect!

Caps are cheap...but knowing how to open the monitor and do the soldering is the part that takes some skill and may be costly.

Good luck and be careful.

Mar 10, 2010 | ViewSonic VX1935wm LCD Monitor

1 Answer

I have an older latitude laptop and the screen goes dark shortly after the computer is turned on. What do I need to do. It has window XP if that makes any difference. Thanx


try to conect external monitor to this laptop if there will be same issue then its vide card if not then LCD alsow cheack conection from motherboard to lcd and you could try bis test (at turned off laptop hold "D" and turn laptop on then relese all buttons) it will cheack LCD

Dec 27, 2009 | Dell Latitude D600 Notebook

1 Answer

When I turn on my monitor I can see the Gateway letters come on the screen but then it just goes dark again. It comes on for a split second and then goes dark again.


joel_herrera, Yes, this is a very common symptom of a failing Switch-Mode-Power-Supply and/or Inverter circuit! Very common in 2-4 year old lcd/fpd's. How old is your's? Do you have warranty? Have you tried the Flashlight test? DO THIS! Reconnect lcd monitor to your fully booted PC with a known good WIN desktop screen. Then power "on" the HD2201 and tell me what happens and what you see or don't see after the screen goes BLACK! Shine a bright flashlight onto the screen at different angles and let me know the results. I'm louie12fix on fixya or lmistyrel @aol.com BYE

Apr 07, 2009 | Gateway HD2201 22" LCD Monitor

1 Answer

Screen wont light up



Try connecting an external monitor to the Dell Inspiron 2200. If the monitor display is fine, then your laptop’s LCD display panel is defective. If the monitor display is dark, problem is with either the video card or motherboard located inside your laptop.
Here’s a link to disassemble the LCD unit: http://support.dell.com/support/edocs/systems/ins2200/en/SM/display.htm#1084976



Your responses are intended to improve the level of service provided. Please show your appreciation by rating your experience.
Thank You.

Nov 18, 2008 | Dell Inspiron 2200 Notebook

1 Answer

Laptop Screen dark yet computer works with external monitor


does the fan work ok? and do you have a laptop holder for it or you just have it on a desk ....get a laptop holder for it if you do not have one and as for the rest goto the power mangment area on the computer and see if the monitor might be on stand by after a few min ...

Jul 14, 2008 | Compaq Presario R3000 Notebook

1 Answer

Wire a vga cable in backin


in vga connector their are 15 pins .u have to solve this problem u have a digital meter to cheack contunity of the pins. if there is old wire is connected on crt board .first u cheack 0 omhs continutey to 1 pin to 15th pin. then u sold ur new cable

Mar 03, 2008 | Belinea 10 17 15 17" LCD Monitor

3 Answers

I have a fujitsu c series life book labtop. screen really dark


hi, u have to plug in the external monitor in a switched off mode, when powered on, the system will automatically detect the monitor and u will see the display, if there is no display even on the external monitor then u will have to check the laptop.. let me know

Jan 14, 2008 | Acer Aspire 5100 Notebook

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