Question about Princeton Digital VL1918 Monitor

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I have a Princeton VL1918 LCD monitor. Need help

I have a Princeton VL1918 LCD monitor. It worked fine for almost 3 years. Now each time I switch on the display comes on and stays for a fraction of a second and I get black screen. I don't hear any sound or switch powering off like that as suggest with some of the postings. The power light stays on fine. Any help is appreciated.

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  • sreenikoman Jul 01, 2009

    Buddy,

    Thanks for the response! I looked inside and everything looks good. I do not understand what you mean by backlight problem. I do see the display very clearly when connected to my laptop but only it disappears in a few seconds. I don't get NO SIGNAL. When I refresh the display from my laptop it shows up again.

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Hello,

You have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of he monitor. If you are good at electronics repair/soldering you can usually fix he problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts, replace any that look like the pictues and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you don't want to try the repair yourself we offer a repair service for $35 plus shipping. If you don't see any bad capacitors then the next thing would be bad CFL (backlight tubes) in the screen itself. If it is that then the monitor needs to be replaced because of the tech skills needed to replace then. I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

Posted on Jun 29, 2009

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1 Answer

My Princeton monitor VL1918 keeps blinking on and off. What is wrong


eben161, you might try replacing some "electrolytic filter capacitors" on the "switch-mode-power-supply" printed circuit board. Try to obtain new ones that have temp rating of 105 deg centegrade. remember to replace them + to + and - to - !!! don't screw it up!!! here are some of the values you will need to purchase. 470micro farad (uf) and 2200uf and all should have a voltage rating no lower than 35vdc please report back with the name of the manufacturer you find on the original "failed" ones you remove from the unit. even if they don't look bad (swollen, leaky) replace them all with new one's. If you won't do the work you can also check to see if Princeton can swap you a refurbished unit for your old+cash. But first you should read all the posts that have been written on this model lcd monitor and how they were fixed! I'm 12fixlouie If this response was helpful to you, please rate it on fixya. Bye for now.

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1 Answer

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Hello,

It sounds like you have a monitor with a common problem. After a few years some LCD monitors will blow a power supply. The problem is caused by parts called capacitors overheating in the confined space of the monitor. If you are good at electronics repair/soldering you can usually fix the problem. Check out a few pictures on my web site www.ccl-la.com/badcaps.htm You can take the back cover off your monitor and look for the bad parts,replace any that look like the pictures and your monitor should work fine. The capacitors do need to be installed with the correct + and - connections, note the stripe on the old one and insert the new one the same way. If you have additional questions just email me. If you can't do the repair we offer a repair service, contact us for more details.

I hope this helps, if so please rate my solution.

Buddy
Corporate Computer
www.ccl-la.com
Over 21 years of computer and printer support/repair

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See previous solution for Princton Monitor cycling on and off.
Solution: Change out 3 capacitors.

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It may need a different outlet, if it is not getting proper power. Small chance that the video cable has gone bad, but more likely the monitor is damaged. But try those two things and call Princeton.

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On the bottom of your monitor or on the right side is a set of buttons one is for brightness and contrast try to reset the brightness and then contrast. If this does not work you may need a new monitor.

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Theres sort of clips that clips to the side of the monitor's frame, use a flat screwdrive to care fully push through the sides of the LCD to unlock the clips.

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I Just checked the specs on both the card and the monitor. It should work no problem. If for some reason you notice some lag or flicker in the monitor, go to this page and download the updated ForceWare graphics drivers.
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