Question about Computers & Internet
Picture is only on for a flicker of a second
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Posted on Jan 02, 2017
Had the same problem here !
C110 and C111 on the power supply unit are busted.
I replaced then with 2 ELCO's from 1000 picofahrad 25 V.
Voila!! runs like new.
Posted on Jan 30, 2009
SOURCE: Samsung 215TW Monitor Flicker
Its the capacitors on the backlight power supply. Samsung installed crappy ones and they blow up after a year or two. Change out the caps and you're good to go
Posted on Jun 09, 2009
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.
Posted on Jul 24, 2009
I had the same problem with my vx2235wm. the symptoms were it would power on with no signal and the blus light would glow. when the PC was turned on it would kick back to the "power-save" state and the desktop would disappear.
To fix this you need to take the case apart (3 screws, one is behind the stand, then gently pry it apart starting at the bottom with a flatscrew driver and pop each tab carefully every couple inches, along both sides and a final wiggle to free the top edge.)
Inside you will find a metal cover, to remove this undo the screws holding the power supply and display ports then unscrew the screws holding it on.
Take notes of where the wires going in are oriented and then you should be able to see two boards.
In this case the suspect part is the DAC which the power supply goes into. On the DAC there will be a part number. In my vx2235wm it was DAC-19M009. Buy the whole board online. Mine shipped for around $40 total. Wait 2 days for it to arrive and installation is pretty much reverse of removal.
My dead display is back in comission, hope this helps with yours.
Posted on Aug 24, 2009
sysjrm, You need to visit YOUTUBE for video clips of "lcd monitor repair" to see if DIY project is what you can handle!!! After you "learn by seeing" some printed circuit "switch-mode-power-supply/inverter boards" having their "aluminum-can" electrolytic filter capacitors replaced and/or "thermally-intermittant" fractured solder-joints "resoldered" then you will be able to make decision on what to do about attempting a repair to your E228WFP! Note!!!! Make certain that your pc is not the cause of your BLACK SCREEN or BLACKnBLANK SCREEN problem/symptom by connecting a "known-good" monitor to your pc first!!! Please read the higher numbered(32 and up) pages in my fixya profile for more information on how to do the simple "flashlight test" for evaluating the state of shutdown that the switch-mode-supply may be in. Also read and follow the links you find in the profiles of "budmrtn" and "buddymc" that are very good ccfl back-lit lcd monitor technicians here on fixya. After you do your web research, remember to come back to this posting and do a comment and rating of this response if you feel that it has steered you in the right direction. Good luck with the repair. 12fixlouie
Posted on Jul 23, 2010
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