Westinghouse L1916HW Monitor On-Screen Display keys malfunction

One possibility is that it may have dying power supply which may be putting out unstable DC which can cause a lot of strange symptoms.
See pictures here: http://s807.photobucket.com/albums/yy352/budm/Westinghouse%20L1916HW/?action=view&current=DSC00244.jpg

Bad caps are real common problems in all brands of the monitors as you can see in my albums.
Westinghouse monitors are cheaply made to start with.

today is our locky day!! I found the answer, please take a look on this web http://s807.photobucket.com/albums/yy352/budm/Westinghouse L1916HW/?action=view ****************************************************** http://www.aplusperfect.com/articles/lcd_capacitor_repair How-To Repair a Desktop LCD with Bad Capacitors January 17, 2008 By Jeremy Brock
Desktop LCD monitors fail for a variety of reasons, the most common being bad electrolytic capacitors. If you are willing to invest the time you can fix your LCD for a few dollars in parts. For this demonstration I'm using an IBM ThinkVision 6636-AB1 however the same techniques apply to most desktop LCD Monitors.
Disclaimer:
A+ Perfect Computers, LLC, is not responsible for any damages to your device, person, or property. Computer, Laptop, or LCD disassembly and part installation is at your own risk. This Guide offers only suggestions for taking apart your device. The components inside your device are highly sensitive. Always ground yourself by using an ESD wrist strap or by touching a metal object while handling sensitive electronics.

Symptoms:
• No Picture on Screen
• LCD displays picture briefly then turns off

Tools:
• Soldering Iron
• Desoldering Station or Solder ******
• Phillips Head Screw Driver
• Spudger (Available Here and Here)

chapp29, You didn't tell me the brand name of the electrolytic filter capacitors that are on your monitors "switch-mode-power-supply / cold-cathode-fluorescent-lamp-ballast" circuit board. How did you measure (check) the capacitors? Are any of the rubber seals pushed out of the bottom of any capacitors? What is the "date of manufacture" of this unit? Will L1916HW work connected to a different "known-good" pc? Will "known-good" monitor work ok when connected to your pc? 12fixlouie

Get in the habbit of turning off LCD monitors when not in use. First, save electric. Second, save your monitor as LCD will burn up faster than a CRT. As for your problem, I would assume it's burning out and/or about to burn out...overheating. I would shut the entire system down, let is sit for 5 minutes and reboot everything. If it still fails to strike properly, it is probably toast.

You can try going into the display functions using the menu buttons and performing a factory reset. Good luck.

You do need correct drivers for your PC hardware to work properly.
Here are the drivers: http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?os=228&lc=en&cc=us&dlc=en&sw_lang=&product=431077

http://s807.photobucket.com/home/budm/allalbums

Usually the monitor manufacturer has a support section on their web site with driver downloads.

Sounds like a bad inverter. Does the screen still show that the power is on? If so, then shine a bright light at it. If you can still see the image, then you have your answer.
-=/ Daft Tech /=-

try changing the display settings from the desktop just right click and select properties then change the display size and colors.