Troubleshooting
ML19H User Manual, 99154B, November 2022
25
Symptom
Causes
Solutions
"Out of
Range"
message box
and no image
on the screen
The source signal exceeds
the maximum resolution
and/or refresh rate that the
monitor can handle
( > 1280 x 1024 resolution or
> 75 Hz refresh rate)�
Adjust the computer settings to the monitor's
native resolution:
1280 x 1024 @ 60 Hz
"No 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.
Incorrectly
displayed or
partial image
on the screen
Monitor has not been
adjusted correctly for the
source signal.
•
Activate the "Auto Image Adjust"
function in the OSD menu� This function
may also be activated by pressing the
[2] button outside of the OSD menu.
• Fine tune the picture by manually
adjusting the image using the settings in
the OSD's "Manual Image Adjust" menu.
Wrong or
abnormal
colors (white
is not white)
Monitor color settings are
incorrectly adjusted.
Reset the monitor to the factory default
settings by activating the "Memory Recall"
function in the OSD menu�
Video cable is not securely
connected�
If any colors (red, green, or blue) are
missing, check the video cable to make sure
it is securely connected�
Video cable is bad�
Ensure no loose or broken pins in the cable
connector� Shorts in cable could also cause
improper image to display.
The message
"OSD Locked"
appears
The OSD has been locked
to prevent unauthorized
changes to display settings.
Press and hold [1] and the up [▲] button for
10 seconds�
The message
"Power Button
Locked"
appears
The Power button has
been locked to prevent
unauthorized shut down of
the monitor�
Press and hold [1] and the down [▼] button
for 10 seconds�
