TM 9-4935-481-14-1
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
Initial Switch Settings
21
CIP
Observe INHIB lamp illuminated.
PPE
22
5
FUNCTION TEST switch to 24V REG.
DMM
Adjust1A2A1R10 to +13.05 + 0.05 Vdc.
CIP
6
COUNTER INHIBIT(SEC) dial to 05.00.
-13 VDC Series Regulators (1A2)
CIP
7
RUN/HOLD/OFF switch to RUN.
23
MCP
Remove DMM pos probe from 1A2A1-J7 and connect it to 1A2A1-J2.
TPS
8
WIDTH (MS) dial to 5.0.
24
DMM
Adjust 1A2A1-R16 to -13.05 + 0.05 Vdc.
MCP
9
DMM LO switch to EXT.
+5 VDC Reference Regulator (1A6)
PP
10
DMM INPUT switch to DMM INPUT.
25
MCP
Connect the DMM pos probe to lA6Al-J7 and the neg probe to 1A6A1-J8.
TP
11
MAIN POWER and DMS switches to ON. Momentarily actuate TEST START switch.
26
DMM
Adjust 1A6A1-R8 to +5.000 + 0.005 Vdc.
TTS
12
CHARGE switch to ON.
-5 VDC Reference Regulator(1A6)
TTS
13
TTS
POWER switch to OFF.
27
Remove the probe from 1A6A1-J7 and connect it to 1A6A1-J6.
TTS
14
TTS
MODE switch to BORESIGHT.
28
Adjust 1A6A1-R4 to -5.000 + 0.005 Vdc.
DMM
NOTE
29
Momentarily actuate TEST START switch. (power off).
PPE
Refer to fig. 3-36 for test points and potentiometer locations.
30
Remove the probes from 1A6A1-J6 and J8.
+5 VDC Digital Regulator (1A1)
31
MCP
DMM LO switch to 5.
PPE
15
Momentarily actuate TEST START switch (power on).
32
MCP
DMM INPUT switch to SEL Ao
CIP
16
Observe INHIB lamp illuminated.
Monitor Meter Sensitivity (1A3)
TTS
17
Connect DMM pos probe to 1A1A1-J2, neg. probe to 1A1A1E2.
33
PPE
SEQUENCE switch to MNL.
DMM
18
Adjust 1A1A1-R16 to +5.075 + 0.050 Vdc.
34
MONITOR SELECT switch to +13VDC.
TTS
+13 VDC Series Regulators (1A2)
35
Connect a jumper wire from ALIGN J3 to 1A3A1-J6.
PPE
TTS
19
Remove the DMM probes from the A1 card.
36
SEQUENCE switch to ALIGN 4.
PPE
TTS
209
Connect DMM pos probe to 1A2A1-J7, neg. probe to 1A2A1-J12.
37
TTS
Adjust 1A3A1-R32 to 7.5 on the MONITOR meter.
38
Remove the jumper wire connected in step 35
39
Momentarily actuate TEST START switch (power on)o
PPE
3-206