I have a Viewsonic 19" widescreen LCD monitor, and it no longer powers on. I have checked the cord, and the connection, but it still doesnt turn on. Is there anything else I can do to salvage the monitor?? It is out of warranty, but is still a very nice monitor, just doesn't turn on.
Is posible a malfunction on the power on/off button or a internal integrate burn, the best thing that u can't do is to get on a service dep to get fix if u don't have a good electrical degree, im sorry for that but this is the real truth.
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Check the power supply caps, solder connections, etc. If you are going to DIY and have proper tools and know safety precaution then please read on: Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses; poor solder joints, 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 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://en.wikipedia.org/wiki/Capacitor_plague http://www.badcaps.net Capacitors kit: http://lcdalternatives.auctivacommerce.com/
It sounds like a loose connection. The easy thing to try is to replace the power cord to make sure that's not the problem. If that doesn't fix it, it's probably a broken or loose wire inside the monitor that you would need to trace down with a multimeter.
It could be a faulty power cord. Try plugging it in and moving the cord around in the areas where it takes the most movement. Do the same with the data cable to see if you get a response there. If your cables are fine, the problem is most likely hardware in the monitor - in that case you're better off replacing the monitor.
The clipping sound is the internal safety switch that keep shutting down the monitor. It means there is an internal problem on the main board (overvoltage, bad component , short). Try unplugging power cord and leaving it unplugged two or three hours, this will reset ICs by draining power completely from circuits, it is called hard reset, it rarely works. CRT monitors waste up to 15 times more energy than TFT screen, if your CRT starts giving troubles, then it is a good time for upgrading it to a new TFT. 17'' start at $120
You have done Most of it...
You have tried to swap the Power cords that work fine with the Other Monitors and If that do not work there are 2 things externally that could be bad.
1-> The Power Button.
2-> The Port where you would Plug in the Power cable.
so Check if the Power button is stuck or Broken, or Loose out of control.
besides that If with one of the good power cord connected when you connect an external Head phone and you receive some Kind of sound out of it.,
It could be because of the Display settings.
you can try the monitor self test.
By having the Monitor Unpluged from the computer but still connected to the power.
you would see a message that shows, that the VGA cable is not pluged in if that shows your Monitor is fine otherwise it is BAD.