Question about Princeton Digital VL1717 LCD Monitor

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My LCD Monitor is blinking on & off constantly

My princeton VL1918 is about 2 years old. It started blinking today. I tested it on a 2nd computer and it still blinks. It even blinks without a computer signal. Can this be fixed?

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The problem is more than likely the caps in the powersupply have gone bad. What you need to replace are 3 470uF 25V (you can use 470 uF 35V caps too) capacitors on the power supply circuit. Yes, you will need to bring out the soldering iron, no it is not terribly difficult to unsolder them. There is a longer thread on here (search under vl1918) for more info in which I posted a solution that has worked for most.

Posted on Oct 04, 2009

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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.

Posted on Jul 12, 2009

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1 Answer

My VL 1918 is blinking on and off constantly


It does the same when used with another PC?
Otherwise, look for bad caps, transistors, transformers as shown in my pictures here: http://s807.photobucket.com/albums/yy352/budm/PRINCETON/Princeton%20VL1918W/#!cpZZ1QQtppZZ20

Very common problem as you can see.

Basic LCD monitor and TV troubleshooting guide:
http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting
http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide
http://www.fixya.com/support/r7406380-tv_training_manuals
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/

Learn about bad caps: http://en.wikipedia.org/wiki/Capacitor_plague

Capacitors kit: http://lcdalternatives.auctivacommerce.com/ he can make you a set of caps for you.
Or www.digikey.com just make sure to use caps with low ESR, 105c, high ripple current, long life rating such as PANASONIC FM or FC series.

Aug 07, 2011 | Princeton Digital VL1918 Monitor

2 Answers

Blinking Monitor


Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, poor solder joints, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed PRINCETON monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague
http://www.badcaps.net

Jun 06, 2010 | Princeton Digital VL1918 Monitor

1 Answer

My Princeton LCD monitor VL1919 takes about 15 minutes to lite up. the blue indicator flashes until it turns on.


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

Aug 10, 2009 | Princeton Digital VL1918 Monitor

1 Answer

I have a Princeton VL1918 LCD monitor. Need help


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

Jun 29, 2009 | Princeton Digital VL1918 Monitor

1 Answer

Princeton LCD17 blinks off immediately


Check the VGA cord that connects from the PC to the LCD, try putting VGA cord properly to the LCD and PC, or change the VGA cord. saving mode indicates no signal from the PC. So either the PC is not booting up or VGA cord faulty.

Nov 09, 2008 | Princeton Digital VL1918 Monitor

2 Answers

Wont work with new computer


Since this was a new out of the box computer, Safe Mode was not allowed. In order to change monitor settings (resolution), I had to use another monitor, in this case a newer CRT. With the CRT, the computer booted up, no problem. Once booted, I turned down the monitor resolution and saved. Now when the Princeton LCD was plugged in and the computer restarted, everything works fine. Now the resolution could be set to limits of the monitor.

Aug 19, 2008 | Princeton Digital VL173 Monitor

1 Answer

Princeton VL1919 repeatedly pops when turned on


If you feel confident take the monitor back cover off and replace the 3 bulged out capacitors

Jan 26, 2008 | Princeton Digital VL1916 19" LCD Monitor

1 Answer

Princeton CD770MCN 17 driver and or setup program


My only suggestion: responsibly recycle that 17-inch CRT, and buy a used 17-inch LCD; around here, the local "government surplus" store is selling 3-year-old 17-inch LCDs for $50, plus taxes.

If it was a "plug-and-play" monitor, then there was _NO_ need for any "drivers" at all, because the monitor would identify which combinations of horizontal/vertical pixels and refresh-rates that it would support.

Oct 27, 2007 | Princeton Digital Custom CD770MCN 17...

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