Armasight NAMPVS700133DB1 PVS7 GEN 3 Bravo Night vision goggles - Manual (Page 34)

34
MALFUNCTION PROBABLE CAUSE/ TEST/INSPECTION CORRECTIVE ACTION
7. Battery cap difficult to
turn
Check for dirt or grit in threads.
Visually inspect for the presence of
an o-ring.
Check for damaged battery cap or
threads on battery compartment.
Clean the battery cap.
If o-ring is missing, contact Customer
Support.
If damaged, contact Customer Support.
8. PVS-7 does not shut off
when removed from head
mount during operation
Visual. Return both the PVS-7 and head mount
to your Armasight retailer or Armasight
manufacturer for service.
9. Head straps cannot be
tightened
Check for defective buckles, fasten-
ers or straps.
If damaged, contact Customer Support.
10. Head mount or helmet
mount socket and goggles
do not catch
Check socket or latch for dirt.
Check socket or latch for damage. Clean socket and latch.
If damaged, return both the head mount
or helmet mount and PVS-7 to your
Armasight retailer or Armasight manufac-
turer for service.
11. Helmet mount will not
tighten to helmet
Visual. If damaged, contact Customer Support.
12. IR spot/flood lens will
not adjust
Visual. Contact Customer Support.
13. Compass does not
illuminate
Visual. Contact Customer Support.
14. Compass will not stay on
the PVS-7
Visual. Possibly missing an o-ring.
Contact Customer Support.
15. Compass display is not
clear
Visual. Make sure the PVS-7 is focused at infinity.
If it is and the compass display is still not
clear, contact Customer Support.
16. PVS-7 does not shut
off when exposed to high
light test under day light or
bright room light.
Perform the following tests in day
light or bright room light.
Place the lens cap on the objective
lens. Turn the PVS-7 on and verify
that they shut off within 70 (±30)
seconds after energized.
Turn the goggles off and then on to
re-energize.
If damaged, contact Customer Support.
4.2 IDENTIFICATION OF OPERATIONAL DEFECTS
4.2.1 OPERATIONAL DEFECTS
Operational defects relate to the reliability of the intensifier, and are an indication of instability. If iden-
tified, the user will need to return the PVS-7 immediately. Operational defects include shading, edge
glow, flashing, flickering, and intermittent operation.
A. Shading
If shading is persistent, you will not be able to see a fully circular image (Figure 4-1). Shading is a very
dark, high-contrast area with a distinct line of demarcation present, and you cannot see an image
through it. Shading always begins on the edge, and will eventually migrate inward until it spans across
the entire image area. If you notice shading with your device, please contact Customer Support.
TABLE 4-1. CONTINUED