Princeton Digital Recent Questions, Troubleshooting Help & Support

i would start looking for a nice 22" LCD monitor.
Your monitor was manufactured by phillips and this symptom is very common. The crt gun gets week and has low emissions. The vid card driver has very lillte to do with the brightness control. However if your card is one of the newer nvidia or ati cards there are control ls in the software for brightness. color temp. contrast ect. Doesn't hurt to check but my guess is monitor.
Check out a LG or view-sonic for new ones.

Goodday!

Try to rebooth your computer and set the BIOS settings to last known configure. and restart you computer.

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I doubt you will find a circuit diagram for a monitor. They are NOT user servicable.
IF you want it repaired, take it to a repair shop. IF you cant understand anything, just get a new monitor.
It would cost you more buying the equipment to diagnose the faulty part, then buying the parts IF you can buy them. A new monitor can be had for about £90, it could cost you alot more to try and fix it

Hi, Billman11, maybe you can repair or maybe not. You need to tell me some stuff first. Need the approx age of the display. Next thing! Does the monitor have external power supply? (black box, sit on floor type) or internal (line cord to wall outlet, and other end to monitor) What exactly happens if monitor is connected to afully booted PC with known good vga output and u connect the flat screen lcd and push the power button? Is lcd panel still pitch black? no flicker or anything? Can you see the power on led indicator even?? From waht you already described it sounds like a Switch-Mode-Power-Supply failure. Each lcd monitor has 2 or 3 printed circuits inside under metal shields beneath the black plastic case covers. In your case, we will want to investigate the board that the line cord plugs into. That will be the smps board, or the little black box on the floor. If you want to try fixing this monitor you can get back to me at louie12fix on fixya or lmistyrel@ aol.com Yes, I'm a vet and spent a year on Kanghwa Do, Korea 67-68 Work for company that provides electronic hardware/software to the gaming industry and located northern Illinois. BYE for now.

If your trying to wake your computer/monitor up try pressing a button on your keyboard or move your mouse. This should wake up both your monitor and computer.

No sound driver is needed for the built-in monitor power speakers (just think of it as a Powered PC speakers built-into the monitor). Are your PC sound card and driver and setting OK? Try feeding the monitor with sound source from MP3 player to see if it works OK, To repair the amplifiers in the monitor will not be worth it since you can spend the same amount for a good set of Powered PC speakers instead with much better sounding.

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: http://s807.photobucket.com/albums/yy352/budm/

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

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, 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

Hello,

you can easily inspect the capacitors on the display and see if they are the fauly. Now does the screen work if you connect it back to the old machine, and do any other monitors work with this computer?

can you tell me more about the symtoms of this display, what does it do when you turn it on etc?

Have you tried updating drivers? Type in your model number plus "driver" on google and you should be able to find what you need.
Also, it might be losing power.... Have you tried using a different power outlet for your setup? That should help you narrow down the possibilities.

You can't change the image size as such actually on the monitor but you can change the size of the image feeding the monitor.
In windows right click the desktop, click properties in drop down menu then click settings.The setting should correspond with the native setting of the monitor which is 1280x1024 pixels and that is what you should set it to.
I hope I have been of help but please do not hesitate to ask if you have any further questions.
I appreciate your vote if you appreciate my reply.

• There is a possibility that there is a problem with the cable your using. Try to check the pins and make sure it is complete or try to use other cable monitor to see if you will still see the same issue.

Feel free to reply to this solution.Thank you. I’m happy to assist further over the phone at https://www.6ya.com/expert/ramy_d9e7ebea3891f482

Look for bad caps with domed tops as shown here:
http://s807.photobucket.com/albums/yy352/budm/Princeton%20VL1919/

Capkits: http://lcdalternatives.auctivacommerce.com/Search.aspx?k=princeton

If you are going to DIY and already try the monitor with another PC, and have proper tools and know safety precaution then please read on: Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply (they should be replaced in a set), 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/albums/yy352/budm/ Post back what you see inside so we can guide you further and it will help out other people in the future also.

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: 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. Please leave rating if it helps.

The monitor has a bad inverter board problem that drives the back lights behind the screen, the only way to fix this is replace the part, or attempt a repair on the board, but if the work is done by a professional it may not be a cost effective to repair the unit, probably cheaper to replace.

The problem may be failing caps, etc inside the monitor as shown in my pictures here:
http://s807.photobucket.com/albums/yy352/budm/Princeton%20VL1918W/

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: 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. Please leave rating if it helps.

It may have bad caps, see my pictures here:
http://s807.photobucket.com/albums/yy352/budm/Princeton%20VL1918W/

This model can have many failed parts as you can see.
Please leave rating if it helps.

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: 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.

sound like your inverter board got shot cheaper to replace than repair

Try the monitor on another PC. If it is the same way, the TFT Matrix screen itself is Failing; You will have to replace the screen. TCC

Welcome to Fixya

First thing to do is to check all physical connection of the monitor if both ends are intact. Install the driver of your video card. If you have other computer, try to plug in the monitor to that computer, just to make sure that the video card of the 1st computer is not the problem.

Please reply back to this email for any update.

Thank you for using Fixya! If you need further help, reach me via phone at https://www.6ya.com/expert/elixirjose_00375ea24bd8141b