Troubleshooting
ML12D User Manual, January 2015
17
Troubleshooting
Video Troubleshooting
IMPORTANT!
If using a KVM extender, first try to resolve any problems using the solutions listed
below� If the problem still exists, try bypassing the KVM extender� If this fixes the
problem and allows the monitor to work properly, then the KVM extender is the
source of the problem� Please refer to the troubleshooting section of the KVM
extender manual or contact Hope Industrial Systems for additional assistance�
Symptom
Causes
Solutions
No image on
the screen and
control's Power
Indicator light is
not lit
Monitor is not powered on�
• Press the Power button on the
monitor and make sure the Power
Indicator light is lit green�
• Check power connections at the
monitor and power source�
• Ensure the power supply is
receiving power by checking for the
green LED�
"No Input
Signal"
message box
and no image on
the screen
Video cable is not plugged in
correctly�
Check the video cable connection at the
monitor, PC, and/or KVM extender�
PC is in Power Saving mode�
Power Saving mode can usually be
exited by moving the mouse or pressing
a key on the keyboard�
PC is not powered on�
Ensure PC is powered on�
PC is not sending signal�
Connect the PC to another known
working monitor to check the PC source
signal�
