TM 9-4935-481-14-1
C2
Table 3-11. DMS-D Performance Test-Continued
Table 3-11. DMS-D Performance Test-Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
129
ITP
INTERNAL TEST switch to 10.
147
MCP
SELECTOR B switch to F4.
130
MCP
Connect a 10215396 cable to J15 and the white probe to pin "V" of the adapter connected to J8.
148
MCP
SELECTOR C switch to F19.
131
Wait > one minute before continuing.
149
HWS
Adjust DC LEVEL control to +5.00 0.001 Vdc.
0
132
DMM
Observe a reading of +2.990 to +3.010 Vdc.
DMM
(21)
Replace card A24. Check A24 pins 17, 33 and 16.
150
MCP
SELECTOR A switch to I-23.
133
MCP
SELECTOR B switch to H18.
151
VWS
Adjust AMPTD(VOLTS) control to -0.50 0.001 Vdc.
0
134
PD
HORIZ/REF/VERT switch to HORIZ.
DMM
(22)
135
Wait > one minute before continuing.
152
MCP
SELECTOR A switch to I-24.
136
DMM
Observe a reading of +2.990 to +3.010 Vdc.
153
DMM
Observe a reading of +5.490 to 5.510 Vdc.
(19)
Replace A24.
137
ITP
INTERNAL TEST switch to OFF.
154
PP
DMS switch to OFF.
138
HWS
Adjust RIPPLE control fully ccw.
155
MCP
Disconnect the adapter from J8.
139
DMM
Observe a reading of +2.995 to +3.005 Vdc.
156
PP
DMS switch to ON.
(20)
157
TP
Momentarily actuate TEST START switch.
140
PP
DMS switch to OFF.
Tracker Test Set Section Tests
141
MCP
Remove the adapter connected to J6.
158
Return all switches to the initial switch settings, leaving the
142
MCP
Remove the cable between J15 and the adapter at J8.
MAIN POWER and DMS switches ON.
143
MCP
Using jumper cables 11154430, short pins "V" and "M" together and "U" and "L" together on the adapter
159
Reset the COMPARATOR THRESHOLD controls as per para. 2-6.
at J8.
160
ITP
INTERNAL TEST switch to 5.
144
PP
DMS switch to ON. Momentarily actuate TEST START switch.
161
MCP
SELECTOR A switch to E8.
TP
162
PPE
FUNCTION TEST switch to INT-CLK.
145
VWS
+DC/PULSE/-DC switch to -DC.
163
PPE
SEQUENCE switch to AUTO 3.
146
MCP
SELECTOR A switch to F4.
3-82
