ARMY TM 9-1240-379-34
MARINE CORPS TM 04332A-34
(4) Electrical contacts not making
2-15. INSPECTION OF ELECTRICAL
(5) Burned out incandescent lamp.
a. Visually inspect electrical and power
materiel for evidence of circuit faults or
b. Check image intensifier system for
possible sources of trouble as indicated by
evidence of the following malfunctions:
the conditions listed below:
( 1 ) Visible flicker.
(1) Burned or carbonized insulation.
( 2 ) Image movement.
(2) High-voltage arcs or short circuits.
( 3 ) Audible sparking.
(3) Improperly soldered connections.