20 Most Recent ViewSonic VG900 19" Flat Panel LCD Monitor - Page 11 Questions & Answers

Could be power supply problems,I had one about a year ago that had bad electrolytic capacitors its best to test all in the P.S. for ESR and Capacity & change all defective ones,Sometimes bad ones will swell up on the ends pay close attention to the main filter cap,on my unit it was 100uf/400vdc it was open,see pic.mine was the one on the right cap #6 was bad.

Try to use some one else monitor to see if the problem is not in your system. With the PC running I do not recommend removing the plug and re-installing it . You are destroying your monitor..

At the back of your monitor there's an audio port, you need a male to male audio cable. connect the 1st end of the cable to the monitor and the other end to the line-in port of the computer.I accept donations for my free service Thankshttp://www.paypal.comsend it to paypal email: [email protected]

It sounds like defective capacitors in the power supply/inverter.Unless you are experienced in electronics be careful repairing.Check for bulging electrolytic capacitors, bulging capacitors indicates they are defective. But a bad capacitor doesn't always bulge to indicte it has failed. Replace all cheap capxon capacitors, with low ESR rated capacitors from Digi-Key, Mouser, Allied electronics or Newak electronics.

Most monitor drivers are built in windows, have you tried booting up in"Safe Mode" and changing the screen resolution?

Check your remote. Some key must be pressed continuously.

Well, in this case I'd advice you to give a little more information about your problem. But anyway, this could be a result of a dry joint or a burned fuse. Open up the monitor and check on the motherboard(where you connect the power cable), take your good time and look for any burned capacitor, resistor or fuse. Again check for any loose or dry joints

Try to connect to another computer if you have any or laptop if it fine then you have problems with the graphics card if you still face the issue then try to change the interface cable DVI or HDMI which ever you are using .Also if you see it the computer which is the one has problem try uninstalling the graphics driver and reinstall it with the latest release of the driver.Hope you get this tips usefullThanks and regardsDushyant

If you are using Windows Xp or earlier OS, right-click on the desktop and go to properties. Then go to Advanced settings, then go to the Monitor tab. You will have to select 60 and then select "Modes that this monitor can not display" You should be good

hello there
please try this ok?
start by pressing and hold the up arrow key for 20 seconds.
If this does not work try this. turn off the monitor and unplug the power cord. and press and hold button 1. if this monitor has this button, Plug the power cord back in. You might need to press the power button while still holding button 1.
The OSD lock should clear after that.
also the main menu on the monitor will have functions that will help you turn off and on this feature just go to the main menu and scroll thru the options ok?
best egards michael

Hold the MENU button for ten seconds to unlock or lock the OSD.

This information is from your manual for the L194WT:
OSD LOCKED/UNLOCKED
This function allows you to lock the current control settings, so that they cannot be inadvertently changed. Press and hold the MENU button for several seconds. The message "OSD LOCKED" should appear. You can unlock the OSD controls at any time by pushing the MENU button for several seconds. The message "OSD UNLOCKED" should appear.


Please rate me if this solution works for you

Thanks......Have a great time

charger issue have you replaced your lcd charger??
if yes then check ypur lcd lamp life

You might be displaying a resolution that is out of range for the monitor.
Try booting in safe mode and switch to a lower resolution or different refresh rate.

It may have bad solder joints, failing components such as bad DC filter caps which is very common to this model as shown in my pictures here: http://s807.photobucket.com/albums/yy352/budm/VIEWSONIC/Viewsonic%20N3250W/

Or you can Google the power supply problem with this model.

So the power supply module will be the first place to check.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on: Basic troubleshooting guide here: http://www.fixya.com/support/r5093881-lcd_flat_panel_tv_troubleshooting_guide http://www.fixya.com/support/r6150077-basic_lcd_monitors_troubleshooting 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 Parts: www.shopjimmy.com Parts: www.interliquidparts.com Capacitors kit: http://lcdalternatives.auctivacommerce.com/Default.aspx he can make you a set of caps. 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.