C3
TM 9-4935-481-14-1
Table 3-13. TTS Maintenance Calibration - Continued e
Table 3-13. TTS Maintenance Calibration - Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
Remove the probe from 1A6A2-J5 and connect it to 1A6A1-J2.
TTS
101
CIP
COUNTER INHIBIT(SEC) dial to 22.00.
124
Observe INHIB lamp illuminated.
CIP
102
PPE
SEQUENCE switch to AUTO 6.
125
SEQUENCE switch to ALIGN 1.
PPE
103
PPE
Momentarily actuate TEST START switch (power on)o
126
Adjust 1A6A1-R15 fully cw.
TTS
104
TTS
Observe TESTING lamp illuminated.
127
While the ALIGN lamp is illuminated, adjust 1A6A1-R15 ccw until the display just switches from
OSC
105
CIP
Wait until INHIB lamp illuminates before continuing.
128
LO to HI.
106
PPE
Momentarily actuate TEST START switch (power off).
SEQUENCE switch to ALIGN 2.
PPE
129
107
CIP
COUNTER INHIBIT(SEC) dial to 12.00.
Adjust 1A6A1-R21 fully ccw.
TTS
130
108
TTS
While the ALIGN lamp is illuminated, adjust 1A6A1-R21 cw until the display just switches from
OSC
MODE switch to MISSILE CMD.
131
LO to HI.
109
PPE
SEQUENCE switch to ALIGN 5.
Momentarily actuate TEST START switch (power off).
PPE
110
TTS
132
Connect a jumper between 1A6A2-J9 and 1A6A1-J8.
Automatic Gain Control (AGC) Level Threshold (1A10)
111
PPE
Momentarily actuate TEST START switch (power on).
TTS
133
112
CIP
Deleted.
Observe INHIB lamp illuminated.
PPE
134
113
TTS
SEQUENCE switch to ALIGN 3.
Adjust 1A6A2-R11 fully ccw.
TTS
135
114
OSC
Remove the probe from 1A6A1-J2 and connect it to 1A10A2-J6. (WHT)
Adjust 1A6A2-R11 cw until the display just switches from LO to HI.
TTS
136
115
PPE
Remove the probe from 1A3A1-J13 and connect it to 1A7A1-J11. (BLK)
SEQUENCE switch to ALIGN 6.
CIP
137
116
TTS
COUNTER INHIBIT(SEC) dial to 17.00.
Adjust 1A6A2-R13 fully ccw.
PPE
138
117
OSC
Momentarily actuate TEST START switch (power on).
Adjust 1A6A2-R13 cw until the display just switches from LO to HI.
TTS
139
118
PPE
Adjust 1A10A2-R11 and 1A10A2-R30 fully cw, and 1A10A2-R18 and 1A10A2-R37 fully ccw.
Momentarily actuate TEST START switch (power off).
CIP
140
119
TTS
Observe INHIB lamp illuminated.
Remove the jumper between 1A6A2-J9 and 1A6A1-J8.
OSC
141
120
TTS
Observe a LO reading.
Horizontal Squelch Level Threshold (1A6)
OSC
142
Adjust 1A10A2-R11 ccw until the display just switches from LO to HI.
121
PPE
MODE switch to BORESIGHT.
PPE
143
SEQUENCE switch to ALIGN 4.
122
CIP
SEQUENCE switch to NNL.
123
PPE
COUNTER INHIBIT(SEC) dial to 16.90.
Momentarily actuate TEST START switch (power on).
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