Monitor turns on, acts like everything is fine and then - poof - no signal input....
I turn my computer on and the monitor turns on and evrything seems to be running smoothly - then the monitor blinks, then it goes dark and I get the message - No Signal Input. What can I do to fix this?!?!?!
Re: Monitor turns on, acts like everything is fine and...
Check the drive section also check the triger transistor, that provide power to the other section by the processing unit. check voltage & ampers before and after, check the electrolytic filters in that section. problem must be there. also check the SMD, if anyone from them is over heating.....
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no input or signal means that the monitor is not receiving any signal from the CPU and if the power light is amber then and the cpu works fine then there could be a problem with the cable connecting the CPU and the monitor ...check the cable.
DVI and HDMI are the exact same signal, except that DVI doesn't include the provision for audio. Essentially the problem you're having is that you have the monitor set to auto input rather than HDMI input or DVI input. Setting the monitor to not look for any input you plug in and defining the input should cause the hunting wait to be eliminated.
1. Turn off both your computer and the monitor.
2. Unplug the video cable from the back of the computer.
3. Turn on the monitor.
If the monitor is functioning properly, you will see a box in the illustration below.
This box appears during normal operation if the video cable becomes disconnected or
4. Turn off your monitor and reconnect the video cable; then turn on both your computer and the
If your monitor screen remains blank after using the previous procedure, check your video
controller and computer system; your monitor is functioning properly.
The Power supply inside the monitor can be hazardous and donot open the monitor while power on.
Donot work with the monitor when it is open and the power supply is on.
If there is something wrong with the input signal, a message appears on the screen or the
screen goes blank although the power indicator LED is still on. The message may indicate
that the monitor is out of scan range or that you need to check the signal cable.
If the bios setup is running evrything is ok except the hard disk.
To find out if there is any problem with monitor just put off the monitor and disconnect it from the cpu. Then turn it back on. If the no signal message is coming, then monitor is ok.
Your hard disk is the main suspect
If the same blue screen comes then monitor need repairs.
You may also try with another monitor on your computer to see the results. If the sane happens it is the hard disk
The first Polyview has a power supply problem (a short) and locks out the power until it is unplugged. You need to check the voltages inside the Monitor to determine which component/s are faulty. I hope you know electronics if not leave it to the repair shop because you have neither the skills or equipment to repair it. By the way I am not a monitor repair man but I do have 30 plus years in the electronics field.
The second monitor may have a broken wire in the cord that goes to your computer. Other internal components can cause the same simptoms your seeing. Good luck!
When your computer is starting up, hit F8 and you'll see the safe mode, safe mode with networking, etc. screen...You should see a choice that says "enable vga mode". Select that and windows will start and the os will select a screen resolution for you. After that, everything will work fine...I hope.