Question about ViewSonic VA720 17" LCD Flat Panel Monitor

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Have a viewsonic va720 screen on and picture on and back off just as quick

If i turn it on the picture comes on and looks great for about 10 seconds then goes off. If i turn off and back on i get picture and goes out again. Power never goes out is still green. I just trying to find trouble shooting info on it and seems like a long chore. Any ideas let me know thanks.

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  • Anonymous Dec 26, 2007

    same Problem

  • th7vees Jan 05, 2008

    yes i have the same problem

  • Anonymous Feb 10, 2008

    va 720 stays on for only 2 seconds

  • goobud777 Apr 05, 2008

    I have a View Sonic VA720, and the power light stays green all the time, and the screen is black. When you try to turn the power button off you get a picture for about 5 seconds and then it goes black again. with the power light staying green.



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It is likely that the backlight inverter is failing. This is a very common problem. The inverter is one of the two ciruit boards inside the monitor. If you can still see a very, very faint image on the monitor, then the backlights are not coming on. The inverter is easily replaced by removing the monitor's back cover, then removing the RF shield over the inverter board (on the left side of the monitor's back), and then finally removing the inverter. A replacement part will cost about $60 as of the time of this writing. The new board will plug right into the 3 cables and is mounted with two screws.

Posted on Aug 02, 2007

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One of the backlight converters might be failing. Check the fuses on the converter, or ask a technician to do it for you. Good luck

Posted on Jun 27, 2006

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Thanks Mr. Weather; your instructions made the job easy... got the back off and accessed the inverter...any suggestions as the best place to get a repacement inverter?

Posted on Jan 15, 2008

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Posted on Jan 02, 2017

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Basic LCD monitor and TV troubleshooting guide:
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his step-by-step guide describers how to obtain and install ViewSonic VA720 drivers for Mac.
1. Define your ViewSonic Monitor device model.

2. Define your operating system to install your ViewSonic Monitor device. Note: Update Drivers in Mac

3. Browse Monitor Drivers.

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Best to buy a new monitor.

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The same problem w/ my viewsonic E70 17" monitor.The viewmeter or viewmatch color on screen do not appear when power ON, although the green led power is ON.

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You can now start your CPU.

Remember : No viewmeter screen on monitor when power ON, means no supply coming out the picture tube or high voltage.

But if there is Viewmeter on screen , this normal and OK>

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