Question about ViewSonic VX2235WM Monitor

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Monitor display stays for a few seconds only but has power always

We have got Viewsonic Monitor, Model VX2235vm, It is always connected to CPU, but its display stays for little time (approx. 3sec.). But the power is there for the monitor with power indicator in blue color.
When we connected another monitor with the computer, it works properly, and display stays for hours.

Kindly advise us how to rectify the problem.

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I have the exact same issue with mine. Viewsonic VX2235WM turns on fine for about three seconds when asked to by my software attempts, but then shuts into sleep mode. I agree completely with BudMrtn. The issue is that your monitor has been through some stress and one if not multiple of the problems is due to part failure. In this case I would suggest a capacitor issue. First off make sure, for a fact, that you have the appropriate drivers. ( For Windows 7 I would suggest using the unsigned drivers from Viewsonic for this model. Now the reason that it is cutting off after a few seconds is because one of the capacitors is not sustaining a charge. It is showing as on for a sec because it is getting the appropriate power to operate but it is not receiving the appropriate level to maintain and is either shorting or free flowing the voltage inappropriately. Now the real question is... do you fix this issue. Well the monitor isn't the most expensive, but it is nice and would be worth the trouble. I would suggest you take a practice run on yours to learn a little something about repairing this level of issue. It is not a very hard fix but it is a very technical one. Understand that to you it is dead already, so what is the worst thing you can really do to it. Use absolute caution when handling these type of repairs. Make sure it is unplugged and use a muli-meter to find your short. I suggest you try and repair this because it is not as dangerous as a CRT. With a CRT you have to watch for residual charge... now you are looking for a busted capacitor which you must realize does retain a charge and electrocution can and more then likely will occur. Use a surge protector in case you screw up. Now if I am right the capacitor you are looking for is not holding a charge so residual charge is probably not going to be an issue... but you never know. Also always keep in mind that even though we have the exact same result, the issue may be varied to a degree of almost infinity. It smells like poo, it looks like poo, it even taste like poo, but it might be a ham sandwich, or a pigeon. My point to all of this is that you should not look at this as a downed monitor, instead you should view this as an opportunity to better get to know your electronics and how to repair them. Have fun and good luck.

Posted on May 27, 2010

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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 VIEWSONIC 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://www.badcaps.net
http://en.wikipedia.org/wiki/Capacitor_plague

Posted on Apr 28, 2010

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