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charles souser Posted on Jul 15, 2007

Lcd screen black sometimes

I have a princeton graphics vl180 monitor and after i let it sleep for a while sometimes it stays black. if i disconnect that monitor and put on the old crt monitor works fine. also if i let lcd monitor sit 6-10hrs it will turn on

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  • Contributor 56 Answers
  • Posted on Jul 31, 2007
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Joined: Jul 30, 2007
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Try to change the LCD power settings ... this is a hardware assue ... but i think it will change when u change this settings

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The monitor stays black

unplug monitor cable with power on, see if any message will come up on screen, if message appears , cable replacement needed
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Describe your (VL1916) 19" LCD

Did you try this monitor with another PC and already verify that the VGA cable is OK.
Common problem with Princeton monitors are due to bad DC filter capacitors in the power supply board, see example here:

http://s807.photobucket.com/albums/yy352/budm/PRINCETON/
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Boot up in safe mode and selct VGA support, then set the video resolution to your Princeton VL2018 native resolution mode (1680x1050 @60 Hz)
See more here:
http://www.fixya.com/support/r4873371-fixing_out_range_format_not_supported

Hopefully you monitor doese not have the same problem (bad caps) just like the other VL2018 as shown in my pictures here (but it will fail for sure later on):
http://s807.photobucket.com/albums/yy352/budm/Princeton%20VL2018W/
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My princeton VL2018W will flash the screen when first powered on but goes blank after. With repeated unpluging, the display used to stay, but no luck

floresa57, After lcd panel "flashes" is the lcd panel "black" or is it both "black" and "blank" when you perform the flashlight test that every LCD owner should know how to do and interpret the results? Do you have warranty? If no, then read more responses in my FIXYA profile for clues on what YOU will or what YOU won't do to fix your BLACK SCREEN monitor!!! Floresa57, the basic principles of design and operation of your Princeton VL2018W are same as all other brands of Fluorescent backlit LCD monitors!!! It can be fixed. READ, READ, before you do anything. Understand the reason WHY your monitor is now black and lifeless. Follow all the LINKS to other web sites so you will be informed and less likely to be overcharged on a repair job that should have cost less than $50. Good luck Floresa57. Rate this on FIXYA if it was of some use to you. 12fixlouie
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Sometimes, i can be the wiring, so check all of that. But apart from that. I don't know! Hope this helps!
DigicalJAI
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PRINCETON LCD-15BLK MONITOR

Looks like one of your backlights is bad, first indication is the red or pink tint, replacement of the lamp is fairly easy. If one lamp is bad the inverter will not work. You can get a replacement lamp from Mouser electronics for about $12
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Missing ribbon wires

There is no chance of getting parts for that model of lcd. It is obsolete.
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