1. Take this Monitor and attach it to another working computer to see if it works
2. If it works, it means the video card on your pc needs to be replaced
The reason why I suggested you test this on another PC is because you have already changed the VGA cable and the power cable on yours. We need to determine if the problem is the monitor or the graphics card. The easiest way to do this is, to plug the monitor into another computer - though this may pose a small inconvenience to you.
The harder way to do it is to buy a graphics card and install - plug monitor into the new graphics card. If your problem goes away then the graphics card is the problem. If your problem persists then your monitor is the problem. At that point if it is still in warranty you may solicit the manufacturer to repair or replace. If it is not in warranty, then it MAY be cheaper to purchase another monitor.
The more expensive way to do it is to take your monitor to a service repair shop and pay them to do diagnostics on it for you
We're closer to isolating the problem:
We've boiled this down to the Monitor itself. If this monitor worked fine on the Mac or on another PC, then we can assume that the problem is with the current PC u are on and the first place I'd look would be the graphics card - change the driver, reconfigure the settings, change the monitor cable, change the power cable or change the graphics card.It is not the cable (brand new cable is used)
it is not the power cable (brand new cable is used)
it is not the graphics card (you tried it on another graphics card)
It is not the driver for the graphics card
It is not the resolution (u tried it at other resolutions)
it is not the operating system because u tried it on two different operating systems
But this is happening on more than one computer. It tells me that the monitor is giving the problem. It looks as though the POWER SUPPLY IN THE MONITOR may very well be faulty. The best way to really determine this would be to carry it an Electronics Technician and let them run some diagnostics on the monitor. But in instances like this, the power supply is usually the problem. I cannot determine for sure over the miles but from experience this is usually (though not always) the problem.
A new Power Supply for that monitor costs $29.99 + S&H (refurbished); brand new it's about $75 (I would recommend buying something like this brand new).
Princeton VL2018W Power Supply (refurbished)
It would serve you better to simply get a new Monitor instead of trying to repair this because u are looking at parts and labor - if you're not fixing this yourself.
You can get a 20" upgrade to what you have for $99
Princeton Digital VL2018W 20 inch LCD Monitor
I hope that this has helped in some way :)
Best regards...
cah
The first thing I would try doing, if I were fixing the Monitor itself,
Here are some replacement options
Princeton Digital VL2018W 20 inch LCD Monitor ($99 free shipping)
Please ignore anything under/after my initials (cah)... this was cut and pasted into there by mistake...
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I have attached the monitor to one pc and 2 mac and get the same results. One difference was the monitor was unpluged several hours and then changed a mac to lowest resolution (600 x 600) 60 mhz, shut down and then changed monitors. It booted up to this setting after I hit the "menu" button. The on/off lights flickered and the setting on the mac also flickered. After a few minutes the monitor went back to the origional problem "no signal". Must be something stopping working when the monitor warms up?
Also, used a new vga cable and new power cable.
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