Need help my desk top monitor is showing a sign flashing saying no signal detected need to see how to fix or what might be the issue with desk top

THE pC IS DEAD OR IS In sleep mode (flashing LED means that)
so start post why is my PC dead and tell what PC it is makers name an model.
hint: desktops PC has 6 sides one of them has service tag label and tells what PC this is.
Q1, PC FANS MUST SPIN DO THEY? IF NOTHOLD POWER BUTTON ON PC , DEPRESSED FOR 10 SECONDS AND RELEASE.

Depending on the computer, you can use the VGA port or the HDMI1 port and the PC audio in (above the digital audio out) with the appropriate cables. The audio cable is a 3.5 mm audio patch cable. Use standard VGA or HDMI cables.

Then press the input button to select either the PC (VGA) or the HDMI1 port as needed.

Then make sure the computer is sending a signal to the desired port. (You may need to enable the port in the BIOS.) Make sure the monitor is on when you start the computer. With Windows, you can usually select the desired monitor by right clicking on the desktop and then choosing the display options. (for Win7, see Screen Resolution then detect the monitor.)

I hope this helps.

Cindy Wells

There is a great article at Working with Windows Wireless Networks
If you need more help post back! Thumbs and testimonial are welcome!

i guessing your talking about a desk top. check the cable that comes from your monitor and make sure one of the pin inside aren't missing or bent. if bent you can try straightening it out but make sure you unplug the monitor. (i usually use a steak knife or a flathead screw driver). hope this helps. please rate if this helps. thank you.

When the monitor says no signal, it means that it is not detecting a monitor. You need to check the cabling of your monitor and verify that it is properly plugged in. Normally its a blue VGA connection or a white DVI connection that goes to the back of the computer. Also, some monitor requires a seperate power source and you need to check this as well

The light and screen flash as it cannot sense a video signal from your computer and so it will not switch on fully or goes into shut down/sand by mode.

Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, blown fuses, 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 HP 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

no signal means the cable is not connected to the video adapter,

if your motherboard has a built-im videocard plug your monitor to the built-in video then change the right settings at the bios

hope this thing helps

This blue light flashing means there is power to monitor bu NO video signal. No Analog or digital Video . analog is the regular plug for PC to Monitor, the other is HDMI digital or other digital. Check signal digital/analog means again: No video signal from PC detected.

Daddy

try a new cable - if the issue isnt the cable then u may have a bad monitor