TM 9-4935-481-14-1
C3
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE CORRECTIVE ACTION
4.327 Cos Amplitude (1143-1236)
222
DMM
Adjust A23-R18 to -3.479 + 0.001 Vdc.
239
DMM
Adjust 1A19-R3 so that the nominal of the fluctuations will
Check A1S15-A3 and AlS19-F4.
be 3.060 Vac. Fluctuations about the nominal shall be within
223
MCP
D1M INPUT switch to SEL A.
0.010 Vac.
224
MCP
SELECTOR A switch to G5.
240
MCP
DMM INPUT switch to DMM INPUT.
225
MCP
SELECTOR B switch to F18.
241
MCP
Install adapter 10275938 on J6.
226
PPE
SEQUENCE switch to AUTO 1.
242
MCP
Connect external DPE pos probe to 10275938-J30.
227
PPE
Momentarily actuate TEST START switch.
228
DMM
Multiply the reading by 0.2393 and record for use in step 232.
1.75 Cos Amplitude(1143-1236)
229
MCP
SELECTOR A switch to D24.
243
DMM
Adjust A19-R26 so that the nominal of the fluctuations will
230
MCP
SELECTOR B switch to E18.
be 1.237 Vac. Fluctuations about the nominal shall be within
231
PPE
SEQUENCE switch to AUTO 2.
0.004 Vac.
232
DMM
Adjust A23-R17 to the value recorded in step 228 + 0.0001 Vdc.
244
MCP
Remove the DMM probe from 10275938-J330,
Check A1S19-F3.
1.10 msec Cos Time Delay (1237-1264)
233
Remove the probe from A23-TP2 (BRN).
245
CP
SELECTOR C switch to H23.
246
OSC
ITE/DIV switch to .2 MSEC.
Tracker Detector Simulator
247
OSC
MODE switch to CHOP.
A19 (10275095), A20 (10275098), A21 (10275101) and A22 (10275104)
248
OSC
-/+ pushbutton to +.
20 Hz Filter Tuning (1143-1161)
249
OSC
A & B input VOLT/DIV switches to .05.
234
Return all switches to the initial switch settings, leaving the
250
OSC
A & B input coupling switches to AC.
MAIN POWER and DMS switches to ON.
251
OSC
Adjust A & B POSITION controls so that both sweeps are vertically
235
MCP
DMM FUNCTION switch to VAC.
centered.
236
MCP
SELECTOR A switch to I-23.
252
MCP
Remove the coax between J16 and counter B INPUT and then connect
237
MCP
SELECTOR B switch to H23.
238
DMM
Adjust A19-R9 to a peak indication.
3-67