Night Optics Falcon 6x Gen 3 Gated Long-Range Night Vision Binocular - Manual (Page 122)

3-
3
CORRECTIVE ACTION
Refocus.
Clean lens surfaces.
If image quality is still poor,
refer to higher level of
maintenance.
Re-adjust for proper eye
relief distance.
If eyecups defective, refer
to higher level of
maintenance.
If damaged, refer to higher
level of maintenance.
Refer to higher level of
maintenance.
TEST OR INSPECTION
Check objective lens or eyepiece
lens focus.
Check for fogging or dirt on
objective lens or eyepiece lens.
Check eye relief distance.
Check eyecup for resiliency.
Check to see if the diopter
adjustment is bent or broken.
Defective eyepiece lens.
Table 3-1. Operator’s Troubleshooting - Continued.
MALFUNCTION
4. Poor image quality.
5. Light visible around
eyecup.
6. Diopter adjustment
cannot be made.
7. Interpupillary adjust-
ment cannot be made
(left and right eye).