Question about ViewSonic VA721 17" LCD Monitor

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A pop up window appears and says no signal analog

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  • 65 Answers

This is most likely a pc hardware issue and not a problem with the monitor itself.

1. check cables and power switches.

2. remove devices from power strip and then plug them back in one by one.

3. try alternating memory sticks to diagnose if one may be bad.

4. remove pci dial up modem card.

5. if you have an agb, pci, or pci-e video card remove it and plug monitor onto the onboard video if the option is present. if not test with a known good video card.

6. if possible test pc power supply with known good power supply as it may have gone bad.

any damaged piece of hardware could potentially cause a system to not post or display to a monitor check these first as they may be the most likely culprits.

hope this is helpful.

Posted on Dec 10, 2009

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Posted on Jan 02, 2017

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