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6. TROUBLESHOOTING
No green (or black and white) image visible
Check that the batteries are installed properly and are full
charged.
Wrongly installed and expended batteries are the
most common problems leading users to believe their Unit is
defective.
Image is unclear
Check if the lenses are foggy or dusty. Clean them if necessary.
If the image is still unfocused – adjust the diopter correction of the
eyepieces.
The image will always be unclear when the objective lens
cap is in place. The unit is designed to provide a clear image in dark
condition in which the objective lens cap is not required.
Image flashes
Image may flash during the first two minutes after activation. It may
continue flashing if exposed to bright light (even with the lens cap on).
Condensation accumulates on Unit
When the Unit is moved from cold to warm environments internal
condensation may appear. If this occurs, the Unit must be warmed up for
up to two hours in order to regain full operational capacity.
Visibility decreased or disappeared
Bright light sources (the Moon, projectors or headlights) may cause
visibility to degrade or even completely disappear. Move the device
away from the light source immediately. The image will be restored
within two minutes.
Adverse atmospheric conditions such as fog, haze or extremely dark
environments will decrease visibility.
Summary of Contents for NVS 7-3AG
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