HIS -ML19.5-A Series User Manual page 25

Symptom
"Out of Range"
message box
and no image on
the screen
"No Signal"
message box
and no image on
the screen
Incorrectly
displayed or
partial image on
the screen
Wrong or
abnormal colors
(white is not
white)
The message
"OSD Locked"
appears
The message
"Power Button
Locked"
appears
Causes
The source signal exceeds
the maximum resolution
and/or refresh rate that the
monitor can handle
( > 1920 x 1080 resolution or
> 75 Hz refresh rate)�
Video cable is not plugged in
correctly�
PC is in Power Saving
mode�
PC is not powered on�
PC is not sending signal.
Monitor has not been
adjusted correctly for the
source signal.
Monitor color settings are
incorrectly adjusted.
Video cable is not securely
connected�
Video cable is bad�
The OSD has been locked
to prevent unauthorized
changes to display settings.
The Power button has
been locked to prevent
unauthorized shut down of
the monitor�
Solutions
Adjust the computer settings to the
monitor's native resolution:
1920 x 1080 @ 60 Hz
Check the video cable connection at the
monitor, PC, and/or KVM extender.
Power Saving mode can usually be exited
by moving the mouse.
Ensure PC is powered on�
Connect the PC to another known working
monitor to check the PC source signal.
• Activate the "Auto Image Adjust"
function in the OSD menu�
• Fine tune the picture by manually
adjusting the image. In the OSD
menu, these functions can be found in
the "Manual Image Adjust" menu.
Reset the monitor to the factory default
settings by activating the "Memory Recall"
function in the OSD�
If any colors (red, green, or blue) are
missing, check the video cable to make
sure it is securely connected�
Check to make sure there are no loose
or broken pins in the cable connector�
Shorts in the cable could also cause an
improper image to display.
Press and hold [1] and the up [▲] button
for 10 seconds�
Press and hold [1] and the down [▼]
button for 10 seconds�
ML19.5A User Manual, 99158B, September 2021
Troubleshooting
25