Question about ViewSonic VP140 Monitor
There are a couple of reasons for this problem.
1. The screen resolution was set too low. Try 1024 X 768 or higher.
2. If you cannot change the screen resolution then the video driver was not installed or the wrong video driver was installed.
Posted on Dec 04, 2009
Testimonial: "Exactly right! Thank you. I think I may have a Trojan changing my resolution...will work on that problem next. Thanks so much for the help!"
The problem can be bad power supply feeding the backlight inverter circuits due to bad caps, or in the inverter circuits, or worst case will be bad lamps, you need to open it up and tell us what you see inside first, good pictures will help, see example of failed VIEWSONIC due to bad caps: http://s807.photobucket.com/home/budm/allalbums
Posted on Jan 26, 2010
Follow the following steps:
To obtain warranty service, email firstname.lastname@example.org.
To obtain warranty service, the following will be required :
The original dated sales receipt (include reseller name, address, phone #, product model, product serial number, and your name if applicable)
Your company name
Your shipping address (no P.O. Boxes accepted)
The serial number of the product
A description of the problem
Posted on Feb 03, 2010
SOURCE: Where is the backlight located
The backlight is located inside the monitor behind the LCD screen, it looks like a thin florescent bulb. I would recommend not replacing it and just replacing the monitor. The bulb is cheap probably between 10 to 30 dollars, but you also may need the EMI kit, and with your labor involved you may not be saving any money. Also if you don't get the correct bulb you may have a green or hue effect.
Posted on Nov 08, 2010
SOURCE: i wanna crcuit digram of
You can get them here: Basic LCD monitor and TV troubleshooting guide: 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.
Failed TV and Monitors pictures: http://s807.photobucket.com/albums/yy352/budm/
Basic LCD monitor and TV troubleshooting guide:
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.
Posted on Jun 16, 2011
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