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Re: lcd monitor acer
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first check with your both power supply out put is coming 19 Volts dc. if its not coming check with multi meter primary and secondary of your adopter continuity.if no continuity replace with proper working adopter.
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
The problem can be bad capacitors in the power supply, look for bad caps with bulging tops or seal, see example of failed monitors due to bad caps: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further. To have it repiared by the repair shop will not be practical, est $60~70 repair bill.
IT sounds like the monitor got fried.. sometimes if the monitor is in the on position as the power comes back, the monitor gets an unexpected sure which can sometime damage the circuitry. You may be out of luck. You're only other option is to try using the monitor on another computer to see if it's just a weird connection issue.
It's turns blue to power safe mode (yellow) it's prevent futher damaged to your monitor. It's seems you got a busted backlight inverter. Need to replaced a new one...Since you only got it for a few months, send it back to Acer for a replacement of a new backlight inverter... Have a nice day!
Sorry to have to tell you this, but this is common in LCD monitors. The reason that it is going black when it boots is for one of two reasons. You either have a bad power supply that powers your LCD or your LCD's backlight is blown. These can be repaired or you can purchase a new one. But if it goes black 9 times out of 10 is because the backlight is bad. These can be repaired!
I agree it isn?t the monitor but I would suspect the video card you are connecting it to or the PC itself. Generally if a monitor doesn?t detect a video signal it will go into hibernation mode, typically displaying a no signal warning and changing the LED color from green to amber.
When you start the computer is anything displaying at all? Are you sure the PC is powering up and booting?