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NVS 6
MANUAL
Page 40
Table 4
Trouble
and
symptoms
Probable
cause
Correction
Remarks
1 NVS 6 failure
to operate
(image-intensifier
tube screens are
not illuminated)
1 Polarity of
connected
rechargeable
batteries is not
observed
1 Remove
rechargeable
batteries and then
fit them in so that
the positive lead
marked with "+" is
directed inwards
into guide (2) (Ref.
Fig. 5.2)
Can be
performed in
the field
2
Rechargeable
batteries
(batteries) are
discharged or
unserviceable
1 Charge
rechargeable
batteries on the bat-
tery charging unit
as instructed in the
Manual furnished
with
Can be
performed in
the field
Trouble
and
symptoms
Probable
cause
Remedy
Remarks
The unit, or replace
failed rechargeable
batteries or batteries
with serviceable
ones included in
the single set of