TM 9-4935-481-14-1
C4
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
343
CT
Adjust DISPLAY control to mid-range.
351
PPE
SEQUENCE switch to ALIGN 2.
344
MCP
Adjust COMPARATOR THRESHOLD B control to +2.000 0.010 Vdc.
352
DMM
Observe that the display cycles between two readings as follows:
DMM
HIGH
+0.4216 to +0.4268 Vdc
345
CT
Observe a reading of 4950 to 5050 Hz.
LOW
+0.3345 to +0.3385 Vdc
(46)
Replace card A2. Check A2 pins 114 and 32.
353
ITP
INTERNAL TEST switch to 4.
354
DMM
Observe that the display cycles between two readings as follows:
346
MCP
SELECTOR A switch to E80
HIGH
+0.4216 to +0.4268 Vdc
347
PPE
SEQUENCE switch to ALIGN 1.
LOW
+0.2812 to +0.2844 Vdc
348
DMM
Observe that the display cycles between two readings as follows:
Replace card A3. Check A3 pin 40.
HIGH
+0.4216 to +0.426 Vdc
8
355
MCP
SELECTOR A switch to F1.
LOW
+0.3345 to +0.3385 Vdc
356
MCP
Adjust COMPARATOR THRESHOLD B control to +2.50 0.05 Vdc.
45
DMM
348.1
PPE
Observe that the ALIGN lamp slowly cycles on and off.
357
MCP
SELECTOR B switch to E9.
Replace card A6. Check A6 pin 57 and the DS2 align lamp
358
CP
SELECTOR C switch to H12.
socket.
3
349
ITP
INTERNAL TEST switch to 3.
359
CT
FREQ/TIME/MULT switch to 10
.
350
DMM
Observe that the display cycles between two readings as follows:
360
CT
FUNCTION switch to TIME A B.
HIGH
+0.4216 to +0.4268 Vdc
361
CT
A INPUT switch to neg.
LOW
+0.2812 to +0.2844 Vdc
362
CT
B INPUT switch to pos.
Replace card A3. Check A3 pins 38, 60 and 118.
363
PPE
SEQUENCE switch to MNL.
364
CT
Adjust DISPLAY Control fully cw to HOLD.
365
PPE
Momentarily actuate TEST START switch.
366
CT
Momentarily depress RESET pushbutton.
367
PPE
SEQUENCE switch to ALIGN 1.
368
CT
Observe a reading of 2380 to 2420 msec.
3-89