C3
TM 9-4935-481-14-1
Table 3-13. TTS Maintenance Calibration - Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
144
OSC
Adjust 1A10A2-R18 cw until the display just switches from LO to HI.
166
OSC
Adjust 1A10A2-R13 cw until the display just switches from LO to HI. (Make adjustment while
ALIGN lamp is illuminated.)
145
PPE
SEQUENCE switch to ALIGN 5.
167
PPE
Momentarily actuate TEST START switch (power off).
146
OSC
Adjust 1A10A2-R30 ccw until the display just switches from LO to HI.
168
TTS
Remove the jumper wire connected in step 164.
147
PPE
SEQUENCE switch to ALIGN 6,
169
PPE
SEQUENCE switch to MNL.
148
OSC
Adjust 1A10A2-R37 cw until the display just switches from LO to HI.
Simulated Sum Signal (1A10) (Trainer)
149
PPE
Momentarily actuate TEST START switch (power off).
RUN/HOLD/OFF switch to OFF.
170
CIP
Filters Ratio Threshold (1A10)
MODE switch to TRAINER.
171
TTS
150
CIP
COUNTER INHIBIT(SEC) dial to 13.11.
DMM INPUT switch to DMM INPUT.
172
MCP
151
PPE
SEQUENCE switch to MNL.
DMM LO switch to EXT.
173
MCP
152
TTS
Remove the probe from 1A1A2-J6 and connect it to 1A10A2-J5.
Connect the DMM pos probe to 1A10A1-J12 and the neg probe to 1A10A1-J3.
174
TTS
153
PPE
Momentarily actuate TEST START switch (power on).
Momentarily actuate TEST START switch (power on).
175
PPE
154
CIP
Observe INHIB lamp illuminated.
Momentarily depress TRAINER, TRIGGER pushbutton.
176
TTS
155
PPE
Connect a jumper wire from ALIGN J2 to 1A10A1-J1.
DMM FUNCTION switch to VAC.
177
MCP
156
PPE
SEQUENCE switch to ALIGN 1.
Adjust 1A10A1-R7 to 0.2900 .0030 Vac.
178
DMM
157
TTS
Adjust 1A10A2-R13 and 1A10A2-R32 fully ccw,
Momentarily actuate TEST START switch (power off).
179
PPE
158
OSC
Adjust 1A10A2-R32 cw until the display just switches from LO to HI. (Make adjustment while
PPE
ALIGN lamp is illuminated.)
Remove the DMM probes from 1A10.
180
TTS
159
PPE
Battery Charger Reference Voltage (1A11)
Momentarily actuate TEST START switch (power off).
160
PPE
NOTE
Remove the jumper between ALIGN J2 and 1A10A1-J1.
161
PPE
This calibration should be performed with the battery packs fully charged. (FULL
SEQUENCE switch to MNL.
CHARGE lamp illuminated). See table 3-14 for battery charging instructions.
162
PPE
Momentarily actuate TEST START switch. (power on).
163
CIP
Observe INHIB lamp illuminated.
164
PPE
Connect a jumper between ALIGN J2 and 1A10A1-J1.
165
PPE
SEQUENCE switch to ALIGN 2.
3-211