TM 1-1270-476-30
4-53
Section II. NIGHT SENSOR ASSEMBLY (NSA) REPAIR
Subject
Para
Page
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-4
4-53
Night Sensor Assembly (NSA) Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-5
4-53
Visual Multiplexer Assembly Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-6
4-134
Relay Bracket Assembly Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-7
4-138
OIP Relay Bracket Assembly Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-8
4-147
Branched Wiring Harness Assembly (W10) Repair . . . . . . . . . . . . . . . . . . . . . . . . . .
4-9
4-156
Branched Wiring Harness Assembly (W10) Repair (OIP) . . . . . . . . . . . . . . . . . . . . .
4-10
4-166
4-4. GENERAL
This section covers night sensor assembly maintenance procedures. Preceding the initial setup
table is a listing of the items covered and the maintenance tasks to be performed. References are
provided to allow fast access to the maintenance information within each major task.
4-5. NIGHT SENSOR ASSEMBLY (NSA) REPAIR
This task covers replacement of:
Para
Item
1.
Preamplifier cover A36
2.
Preamplifier cover assembly A36
vaneaxial fan B1
3.
Capacitor C1 thru C5
4.
Flexible printed cables W1 thru W9
5.
Focus adjust pot circuit card
assembly (CCA) A37
6.
Transistor Q1 thru Q4
7.
Visual multiplexer assembly A33
8.
TADS FLIR solid state camera
assembly A33
9.
Relay bracket assembly A39
10.
Cooler/Dewar assembly A29/A30
11.
Cooler/Dewar assembly A29/A30
OIP
12.
Time delay relay K1
13.
Preamplifier cover assembly A36
electrical connector J1
14.
Preamplifier cover assembly A36
electrical connector J2
Para
Item
15.
Circuit card assembly (CCA) A12
thru A22, A26 and A27
16.
Circuit card assembly (CCA) A1 thru
A10
17.
Capacitor assembly A41
18.
Spring tension clips
19.
Rubber pads
20.
Connector A38P1
21.
Transistor assembly terminal lugs
22.
Elapsed time indicator M1
23.
Volt power supply (OIP) circuit card
assembly (CCA)
24.
IR imager assembly A40 (OIP)
25.
Optics scanner assembly A32
vaneaxial fan B1
26.
Optics scanner assembly A32
vaneaxial fan B1 electrical
connector P1
27.
Focusing assembly A31
