TM 9-4931-436-14&P
Direct Support Troubleshooting Table - continued
Alignment Device,
Table 5-1.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE
ACTION
Use programmer test set,
INCORRECT RESPONSE
1. Replace defective
7.
ON RIGHT DISPLAY
preamplifier board.
fitted with aperture adapter
to test detector array.
Step 1. On left side of de-
tector array fire at each
cross point until an incor-
rect response is received.
test point 2 in line with
adjacent boards, Defective
board will show no pulse
when appropriate area of
array iS illuminated.
INCORRECT RESPONSE
1.
Replace defective
8.
Use programmer test set,
ON TOP DISPLAY
preamplifier board.
fitted with aperture adapter
to test detector array.
Step 1. On bottom half of
detector array fire at each
cross point until an incor-
rect response is received.
test point 1 in line with
vertical coordinates, and
adjacent boards. Defective
board will show no pulse
when appropriate area of
array is illuminated.
INCORRECT RESPONSE
9.
Use programmer test set,
1. Replace defective
ON BOTTOM DISPLAY
preamplifier board.
fitted with aperture adapter
to test detector array.
Step 1. On top half of de-
tector array fire at each
cross point until an incor-
rect response is received.
in line with vertical
boards. Defective board
will show no pulse when
appropriate area of array
is illuminated.
5-4