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Is my LCD monitor dying?

 
 
ST 38

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      May 6th, 10, 6:21 AM
Its been a while since I've been here. I've been really busy with architecture.

Anyways, I have a Samsung Sync Master 906Bw 2ms monitor.

Problem:
The monitor takes forever to detect a display signal. The power light will keep blinking but the screen stays blank. Changing the source button does not do anything. Also, the monitor emits a very faint high pitched noise in this process. Here's the part that really has me stumped, the video signal will eventually be detected and the monitor will work fine, as if nothing happened. Also, turning it on and off after it detects the display signal does not reproduce the same problem. It will turn on and detect a signal immediately. The problem does return, however, if I let the display go to sleep for a long time.

Is my monitor dying? I vaguely remember going through this with an older viewsonic LCD monitor I had. The samsung monitor has been working flawlessly for about 4 or 5 years now.
 

 
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      May 6th, 10, 8:26 AM
Does it have an internal or external power-supply? Could it be that is not supplying enough DC voltage to start with e.g. let's assume it is meant to supply 18V DC and at initial turn on it supplies maybe 12v - not enough for the screen and then the voltage creeps up to the correct voltage and the screen bursts into life.

Just an idea. A bit fiddly to check as you need to check the voltage from the psu with a load on.

Other than that I'd say that the monitor was on its way out. Could you hook it up to a friend's PC or laptop to see if the same problem occurs? That at least would eliminate the graphics card from the equation.
 

 
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      May 6th, 10, 9:44 PM
It has an internal power supply. I've already ruled out the card as a possible issue because I am running a dual monitor setup. My other monitor is fine and I've even tried swapping the ports. I came across something in my search for an answer, it seems that the capacitors in LCD monitors go bad over time. I'm going open up my monitor and have a peek inside to check the caps. If they are bulging at the top or if they are leaking fluids, then replacing them will give the monitor another 4 or 5 years of life...unless the backlight fails before then. Hopefully this works out. I really like this monitor, the color is great and its really sharp. We shall see. I'll keep you guys updated. If anyone else has any suggestions, I'd like to hear it! Thanks!
 

 
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