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Trouble-shooting
symptom
No display
Image or
color abnormal
No audio output
The power is not turned on
Unstable power voltage
BNC or HDMI cable loose
contact or not correctly
connected
The attached battery is
no power
Using DIY power supply but
the polarity is reversed
Possible causes
Solution
Please check if the power is connected, and then
press “POWER” button to turn on the monitor
Reconnect to power supply
Check and correctly connect the BNC or HDMI cable
Change battery
Refer to the provided power supply,
reconnect the power.
Bad contact of BNC
or HDMI cable
Video signal has Interference
Improper adjustment of the
color parameters
Distortion of the image
Set to Blue only
Turn on the “Focus Assist”
function
Turn on the “False Color”
function
Change the Video cable
Remove the interference source(s)
Adjust the “Recall profile” to “Default”
under “System” submenu
Reset the Aspect ratio
Turn off the “pure color “ setting
Turn off the “Focus Assist” function
Turn off the “False Color” function
Set mute state
Bad contact of signal cable
Wrong connection or bad
contact of Audio cable
Cancel mute state or spin ” MENU/ENTER ”
to adjust volume
Change signal cable
Connect to the correct input socket
