Question about Samsung SyncMaster 204B 20.1" LCD Monitor

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Monitor not working

I have two Samsung 204b Monitors that I have set up as dual monitors. They have worked correctly for over 6 months, just yesterday one of the monitors began to lose brightness and begin to flicker, I have checked all the cables and re-started my computer. Now today the monitor will not turn on. The power button is flashing. It seems that my mouse can get lost in the other monitor if i drag it in that direction. I have tried removing and attaching in the display panel. Is my monitor just broken or is there something I can do ?

Posted by Ryan Fisler on

  • Ryan Fisler Aug 29, 2007

    Oh my god Samsung Tech Support is terrible.

    I checked the cables and the problem followed the monitor. I called Samsung as I have a written waranty for 3 yrs that came with my monitor. The guy who i talked to on the phone was ridiculous. I told him the process I went through, and he insisted that the problem is with the computers video card, although i have another monitor that is the exact same that works perfectly. I told him the Serial # and the model # and he asked me for my receipt information. I told him i purchased it at an online retailer and i was searching for the email receipt. He then tells me that if i bought it online it was not an authorized retailer and that they will not honour my warranty. I said i got it brand new in box from reputable online site with the warranty in paper, and he said that it could be a fake, that there is fake monitors going around , he went on into this conpiracy theory how people are calling him with fake samsung monitors, he made no sense. Samsung support is ridiculous.



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It does sound as if its ?broken? but some quick tests will help figure out whats going on. When the other monitor dies switch where it plugs into the PC with the other monitor. If the problem follows the monitor then the PC end is OK and we shift our focus to the monitor. Some monitors have video cables that will disconnect from the monitor. If that is the case with your?s then try swapping cables, again does the problem follow the cable or stay with the monitor? If it follows the cable then just replace it, if not then the problem is definitely in the monitor as you suspected. If you monitor is less than a year old (or whatever your warranty is) contact Samsun tech support for a warranty replacement. When you call make sure you outline the process you went through, it will make the process quicker. If its older then what you do next depends on you, if you have the skills and some basic equipment you can try troubleshooting. I usually recommend that the typical user either take their monitor to the local authorized repair shop for this sort of thing. Most users simply do not have the experience or tools to take on the job.

Posted on Jul 16, 2007


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If you look at the board, you will see the p/n, manufacturer name, V (version) number. What kind of problem are you having with the monitors.

If you are going to DIY and have proper tools and know safety precaution then please read on:
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Post back what you see inside so we can guide you further and it will help out other people in the future also.
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Hello Steve,

The problem is caused by a bad power supply board about to die. Check our web site at: We have a step by step repair guide for the 204B / 204T monitors that should get you back going. If you don't want to do the repair yourself we do offer a repair service for $30 + return shipping.

I hope this helps, If so please rate our solution.

Corporate Computer
[email protected]

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