Question about Samsung SyncMaster 204T Monitor

Open Question

Monitor power light stays on but monitor does not work

I turned on my samsung syncmaster 204t monitor last week and the power light came on and just stayed on, the monitor did not show any display. When I opened it up I found one blown capasitor in the what I figure to be the power supply,[possibly 2] so I replaced the three that were the same and reconnected the parts with the same results. Im figuring that the motherboard might also be damaged [or the bios chip] and I cant seem to find any parts [and since I dont realy know much about these things] I could realy use some help

Posted by on

4 Suggested Answers

benwabnick
  • 2404 Answers

SOURCE: samsung syncmaster 226BW no backlight

Look for any bulging capacitors, instead of a flat top they will look "pregnant".

If you see any of those then replace them with capacitors of the same UF rating and the voltage needs to be either the same or higher.

If you dont see any bulging capacitors or burnt parts, then its got be the LCD at that point thats not staying on and the cost to replace the LCD is as much if not more then to just get another monitor.


Posted on Aug 27, 2009

  • 2 Answers

SOURCE: Monitor goes blank after 3 seconds -Samsung SyncMaster 920NW

hello i have the same problem, there are 4 lamps (bulbs) inside the monitor when some of them falls the system turn off, cheks and good look

Posted on Oct 27, 2009

  • 732 Answers

SOURCE: I have a Samsung Syncmaster 932b LCD monitor.

savato321, Most black screen lcd monitor owners don't have the smarts to open up their monitors to do a VISUAL inspection of the "switch-mode-power-supply/inverter supply!!!! You're good. Now you will need to know some stuff about electrolytic filter capacitors! First, the "uf" or "UF" means micro-farad! It is just a rating given to express the storage capacity of the device. Next is the voltage rating. A 16v rating means that the capacitor should never be placed in a circuit where the voltage will exceed 10 to 12 volts DC. Your 820 uf cap rated at 25volts will most likely be in a 12 to 18volt dc circuit. Now for temperature rating. All caps have a maximum temp rating. Most clock radios, stereos, will use 85 degree centegrade rated caps. Printers,PCs,monitors, will use 105 degree C rated capacitors. Never replace with lower specification units! You can GO up but never DOWN. If 1000uf 25v is all you can get it's OK. If you can get 820uf 35v units and they are not too big and they will fit on the board sure you can use them. I would stick with the OEM design voltage rating. Electrolytic CAPS are polarized!! You must replace them + to + and - to -!!! If you screw -up they will blow-up!! The wire lead closest to the printed STRIPE on the cap will be the negative and the unmarked terminal will be the positive. If you visit www.ccl-la.com/badcaps.htm you will get more info on recapping your SMPS. You can also watch some DIY videos at YOUTUBE for "lcd monitor repair" that might be helpful. Also visually inspect the SMPS/inverter printed circuit board for "COLD" FROSTY looking solder joints. They should all have near mirror finish to them. Let us know the name of the BAD CAPS you remove from your unit. You may even want to document with pics with a digital camera what you find. Well, good luck guy. 12fixlouie

Posted on Dec 24, 2009

  • 457 Answers

SOURCE: 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.

Posted on Feb 09, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

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 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

8 Answers

Samsung Syncmaster 204B


Try to replace C110 and C111 in the power supply circuit. These are 820uF caps and are in parallel. I had slow start and a flicker on this same monitor. Replacing the caps fixed it. Good luck, Ryan

Jul 09, 2008 | Samsung SyncMaster 204B 20.1" LCD Monitor

Not finding what you are looking for?
Computer Monitors Logo

Related Topics:

87 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Computer Monitors Experts

Rugeshan Lanka
Rugeshan Lanka

Level 1 Expert

15 Answers

Pieter Vleeshouwers

Level 3 Expert

1421 Answers

yadayada
yadayada

Level 3 Expert

61168 Answers

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

Answer questions

Manuals & User Guides

Loading...