C4
TM9-4935-481-14-1
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 AC ION
T
Tracker Section Tests
1161
CT
Observe the reading recorded in either step 1155 or 1156,0.3 msec.
1143
Return all switches to the initial switch settings, leaving the
(131)
MAIN POWER and DMS switches ON.
1144
CT
FUNCTION switch to PERIOD A.
1.237 VRMS Cos. and Sin-Magnitude
1145
CT
A INPUT switch to neg.
1162
Return all switches to the initial switch settings, leaving the
1146
CT
B INPUT switch to neg.
MAIN POWER and DMS switches ON.
FREQ/TIME/MULT switch to 11.
1147
CT
0
1163
MCP
DMM INPUT switch to DMM INPUT.
1164
MCP
Connect the 10275938 adapter to J6.
Quadrature Check
1165
MCP
Connect the DMM pos probe to J6-30.
1166
MCP
DMM FUNCTION switch to VAC.
1148
MCP
SELECTOR B switch to H23.
1167
ITP
INTERNAL TEST switch to 1.
1148.1
SELECTOR C switch to I22.
1168
DMM
Observe a reading of 1.205 to 1.269 Vac.
1149
MCP
SELECTOR A switch to Fl.
(132)
1150
MCP
Adjust COMPARATOR THRESHOLD B control to +0.1000 0.0020 Vdc.
1169
ITP
INTERNAL TEST switch to OFF.
DMM
1170
DMM
Observe a reading of 1.205 to 1.269 Vac.
1151
MCP
SELECTOR A switch to F2.
(132)
1152
MCP
Adjust COMPARATOR THRESHOLD C control to +0.1000 0.0020 Vdc.
1171
MCP
Remove the DMM pos probe from J6-30 and connect it to J6-70.
DMM
1172
ITP
INTERNAL TEST switch to 1.
1153
MCP
SELECTOR A switch to I-22.
1173
DMM
Observe 1.205 to 1.269 Vac.
1154
CT
Record the reading for use in steps 1155, 1156, and 1159.
(133)
1155
CT
Multiply the reading by 0.25 and record for use in step 1161.
1174
ITP
INTERNAL TEST switch to OFF.
1156
CT
Multiply the reading by 0.75 and record for use in step 1161.
1175
DMM
Observe 1.205 to 1.269 Vac.
1157
CT
FUNCTION switch to TIME A B.
-
(133)
1158
MCP
SELECTOR C switch to H23.
1176
MCP
Remove pos probe from J6-70 and remove the 10275938 adapter.
1159
MCP
Adjust COMPARATOR THRESHOLD B control to obtain the identical
CT
reading as that recorded in step 1154.
1160
MCP
SELECTOR C switch to H22.
3-119
