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I have a samsung LW15M23C S..if i move the monitor the power goes off and does not come on for about 3 hours!..checked leads etc

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You may have intermintten problem inside take it to a local shop

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Samsung monitor goes blank after working perfectly for a period of time.

Have you checked monitor settings Carl? Some are set to sleep after a certain period of time. Mine was set to sleep after 1 hour (unknown to me) until I reset it. =)

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This may be a common problem with these, I have 2 side by side, both failed in the same way within days of each other even though one is used more than the other. I know its not faulty, as you say, it runs fine for 5 seconds, then goes black, power down & back up, runs fine for another few seconds.. will be searching for a fix for this, as local service co. wants close to what I paid for them new just to look at, and tell me its gonna cost $500 to fix.. probably! my guess its a inverter capacitor, or dry joint, and some sensing circuit is shutting the monitor down. To open, you need to slide a hard thin plastic wedge along the edge, with a slight pry it opens up at the tags, there are 4 tags across the top, and 3 down each side, if careful, you can oen without damaging plastic case edges. be careful of the inverter leads and PCB (under the shiny aluminium side plate), they can hold a fair belt of DC even after monitor is off for awhile.

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Samsung 22inch lcd monitor goes blank after 1min idle system.

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Samsung 22inch lcd monitor goes blank after 1min idle system.

Hello sir, I have samsung 22in lcd monitor and nvidea fx5500 card. since last more than 6 months, my monitor goes blank If system remains idle (means I don't move mouse and don't touch keyboard) for 1 minute. After monitor goes blank I have to move mouse to brink it back to on. The power led keep on during this problem. I tried everything including power options in windows but could not fix it. Is it bios setting to be checked or could it be windows bug? Please help

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More likely to be power supply problem due to bad caps, you need to open it up and inspect the power supply section first, post back what you see so we can guide you further, see example of failed SAMSUNG monitors due to bad caps:

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Want to use samsung 2233SW LCD monitor as TV

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Hello, I am sure that you have some software settings problem. go to - DISPLAY PROPERTIES - SCREEN SAVER - MONITOR POWER. There select NEVER TURN OFF monitor. Your problem will be solved. BYE

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This model is having a problem of backlite. please check it independently for hour or so. If the same sign then the problem may be with backlite.

You may also approach authorised service personnel for this defect.

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