Monitor won't stay on. When I turn the unit on it the picture will flash on for aboue 20 seconds then goes off. Repeatedly turning the unit off and on gets the same response. BUT sometimes it works just find. Have replaced the video card - no change. Once of the solutions talked about replacing a light/lamp(?) where, how, etc. I have taken it to a repair place and, of course, it went on just fine then. Can it be a bad on/off switch? And, if so how does it get replaced?
It is a component problem on one of the PCB printed circuit boards in your unit. Probably the Invertor or power board or power inverter or what ever its called. It is a common problem that there is a component like a capacitor or transistor or diode that goes bad and will need replacement. See this URL as an example. I understand it is not your make or model but it is the same symptoms. http://ezinearticles.com/?How-to-Repair-Dell-E151FP-LCD-Monitor&id=222546
OR similar but not the same (this might shed some light)
http://www.instructables.com/id/EL0W35Y7L7EQZJIZSL/ I have repaired this dell lcd using these instructions
Have you checked you video drivers?
you may try annother monitor to check your computer for a video DRIVER type problem/incompatability.
Was this a new monitor installed on your pc or did it work at one time on this same pc?
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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 PRINCETON 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
Have you tried any other monitor connected to your computer since your current problem? Check your connections, make sure your VGA cable/DVI cable are in good condition. If none of that works try to RMA it to sceptre if your still within the 1 year period.
There is probably a bad capacitor within the monitor that will not allow the picture to "hold" in the on configuration. This will need to be replaced. You can send it back to Phillips, or 17" monitors are pretty cheap these days. I would suggest a Samsung or BenQ. They both carry 3yr warranties.