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Samsung SyncMaster 204T monitor flashes on, then immediately the picture disappears. I have to hit the ON/OFF switch several times before the monitor comes on and stays on.

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  • pianoguyblue Sep 11, 2009

    I will take this solution to the computer repair shop I use and have them implement it.



    Thank you for your helpful input.



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On this monitor, the power supply and inverter boards are integrated into one unit. There were bulging capacitors all over the board:

Samsung SyncMaster 204T monitor flashes on, then - 0b2862a.jpg


for details of repair..download this pdf

http://kirkovsky.com/junkbin/SamsungSyncMaster204T.pdf

Posted on Sep 10, 2009

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1 Answer

Sycmaster 204T works great for 20 seconds then screen blanks


Hello Carl,
That problem could be caused by either bad capacitors on the power supply board or a bad back light bulb in the panel. The first thing to check would be the capacitors on the power supply board. Here is a link with a few pictures of how to dis-assemble the unit and what to look for. The tops of the capacitors should be flat, if they are domed or have any bulging then they need to be replaced. If all of the capacitors look good then it is most likely the back light bulb. This can be replaced by it is much more involved.

http://www.ccl-la.com/blog/index.php/samsung-214t-repair/

I hope this helps,
BuddyMc

Sep 24, 2012 | Samsung SyncMaster 204t 20.1" Flat Panel...

1 Answer

I have a samsung syncmaster 204T monitor. Everything was fine until last night when i kept my system on standby for approx 5-6 hrs. Now whenever i start my system there is only a green led on front panel...


I just started having the same problem! The green light flashes, but the monitor is blank. None of the button work (menu, source, etc...) and nothing changes when I disconnect it from the computer. I was suspecting a bad graphics card at first, but now I'm thinking the monitor itself is bad?!

Jun 29, 2010 | Samsung SyncMaster 204T Monitor

2 Answers

Samsung 204T monitor hard to start


we need to check first the switch button, remove that and look for replacement. if still encountering problem well proceed trouble shooting ckt side.

Apr 20, 2010 | Samsung SyncMaster 204T Monitor

1 Answer

My son crack the LCD glass on his 204T SyncMaster


The glass of the panel is glued or welded to the LCD wafer below, it cannot be replaced separately. Since the panel is the most expensive part of an LCD monitor, its probably the cheapest option to just get a new monitor - spare part ordering and extensive manual work required for the change simply outweighs the remaining value of the monitor.

Feb 09, 2010 | Samsung SyncMaster 204t 20.1" Flat Panel...

1 Answer

I have a SyncMaster 204 T that the back light wont always light


Look for bad caps in the power supply first, see example of failed SAMSUNG monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums
report back what you see so we can guide you further.

Feb 06, 2010 | Samsung SyncMaster 204T Monitor

1 Answer

Samsung LCD monitor (SyncMaster 710v) displaying white stripe.


hi,
your lcd micron tube in the panel had already worn out.
got to replace the panel

Jan 21, 2010 | Samsung SyncMaster 172N 17" LCD Monitor

1 Answer

Samsung Syncmaster 204T flashing


Hi,
Please check that all the cables are plugged in firmly on the back of the monitor and on the back of the computer.
However....
It sounds like the back light on the screen is faulty. If this is the case it is definitely a return for repair problem. You should be able to find the warrantly procedure for your area on the samsung website.
Cheers
Dave

Jun 21, 2009 | Samsung 204T 20" LCD Monitor

3 Answers

Monitor shows picture for a 1/2 second then black


Sounds like it might be getting too hot and/or going bad. Not sure how to diagnose this without seeing it myself. That is the best that I can do. Your video card could be going bad. Try another video card on that monitor. This will be the only way to decide if it is the card or monitor. Try it on another machine and see what it does.

May 31, 2008 | Samsung SyncMaster 204t 20.1" Flat Panel...

1 Answer

Blank Screen


It's very likely that the LCd "inverter" is bad. This is a module that provides the high voltages needed to light the 4 cold-cathode lamps that provide the white backlight. Search for other samsung problems with inverter and you should find several. The one I saw was for 17" LCDs and the 204T is probably using a different module. Should be able to find replacement online, but be prepared to take the monitor back cover off, with tiny screws and connectors.

Sep 09, 2007 | Samsung SyncMaster 204t 20.1" Flat Panel...

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