Error message on Syncmaster- check signal cable

Check your cable connection on both ends. Try to change the cable.

Hi there,
You can try to disconnect VGA cable to see will the notification "no VGA signal" appear on screen. If so the problem could be with PC graphics, else it is power board problem bad caps.Thanks

Check signal cables means there's no signal on input. If your PC still shows up on a different monitor then it's a time to replace a mainboard in your monitor.

Hold down Function button and click F8 key to tell the laptop to send signal to the monitor.

from user manual troubleshooting section
(When connecting D-Sub cable) Check the signal cable connection. (When connecting DVI cable) If you still see an error message on the screen when the monitor is connected properly, check to see if the monitor status is set to analog. Press Source button to have the monitor double-check the input signal source.

Source button Activates a highlighted menu item.
/ Push the 'SOURCE', then selects the video signal while the OSD is off. (When the source button is pressed to change the input mode, a message appears in the center of the screen displaying the current mode -- analog or digital input signal.) Note : If you select the digital mode, you must connect your monitor to the graphic card's port using the DVI cable.
https://images10.newegg.com/User-Manual/User_Manual_24-001-063.pdf ninth page in user manual
source button fourth from the left when facing monitor. looks like a box with an arrow pointing left.

First check to make sure that your cable is connected securely to both your monitor and your PC. IF it is, then try and boot your computer into safe mode with networking to see if you can get the monitor to work in that mode. This will only load the most basic VGA driver and should work. If it does then go to your graphics card manufacturers site to see if you have the latest driver for your card. If you do not then following the instructions on their website download and install their latest driver. If that doesn't resolve the issue then you will have to take your PC and monitor into your local repair shop as one of those components has stopped working.

Sounds like system software needs to be replaced... re-installed. It probably got corrupted somehow since it is not rebooting properly. Use the original discs that came with the computer. Thnx

Not really...

First check if the cable connected from the monitor is secured and properly connected to the video card of the CPU.

"Check signal cable" will only be display if there is no signal coming from the CPU.. that signal Passes through the video card..

Check the status of your video card.....and see also if the CPU is working and not dead set.

Hope this help...
Much appreciated if you rate this help.. thanks

Does the new monitor work correctly when installed to some other computer (notebook or desktop) ? If it, you have a "dud" that should be replaced, under warranty.

Try changing the data-cable between the monitor and your computer.

Try removing signal cable and refitting at both ends.
Signal cable also could be faulty.
Samir