XXIII. Troubleshooting
The following table lists all problems that are likely to occur during device operation. Check
and address problems by referring to this table. If faults not included in this table occur or you
cannot fix the fault, return the device to the vendor or supplier for troubleshooting.
Fault
Possible Causes
Solutions
The scope can not be
started
The battery is out of charge
Charge the battery
The device cannot be
powered by using an
external power supply.
The USB cable is damaged
Replace the USB cable
The external power supply is
insufficient
If necessary, check the external power
supply
Images are unclear,
vertical lines are
present, or the
background is not even
Calibration is required
Calibrate the images as instructed in
Section 9 of the user manual
Images are too dark
The display is not bright
enough
Adjust the display brightness
Icons are clear but
images are blurry
The lens is not focused
Rotate the lens focus ring to adjust the
focus
The inner or outer optical
surface of the lens is dusted
or iced
Wipe the outer optical surface by
using a soft cotton cloth or leave the
scope to dry in a warm and dry
environment for more than 4 hours
The position of the
reticle moves after
shooting
The scope or the fixing clamp
is not installed firmly
Check whether the scope is installed
firmly.
Ensure that the bullet type and caliber
you use are consistent with that used
for zeroing.
If you perform zeroing in summer but
use the scope in winter (or vise versa),
