TM 9-4935-481-14-1
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 ACTION
Pulse Width and Pulse Repetition Time
WIDTH(MS)
Reading
558
MCP
SELECTOR A switch to F1.
559
MCP
SELECTOR B switch to F4.
576
3.0
2.95 to 3.05 msec
560
CT
A INPUT switch to pos.
577
4.0
3.95 to 4.05 msec
561
CT
B INPUT switch to neg.
578
5.0
4.95 to 5.05 msec
562
CT
Adjust DISPLAY control to mid-range.
579
6.0
5.95 to 6.05 msec
563
MCP
Adjust COMPARATOR THRESHOLD B control to +5.000 0.010 Vdc.
580
7.0
6,95 to 7.05 msec
DMM
581
8.0
7.95 to 8.05 msec
564
PPE
Momentarily actuate TEST START switch.
582
9.0
8.95 to 9.05 msec
565
VWS
Set WIDTH(MS) dial to the positions indicated and observe the Counter reading for each setting.
583
10.0
9.95 to 10.05 msec
584
11.0
10.95 to 11.05 msec
WIDTH(MS)
Reading
585
12.0
11.95 to 12.05 msec
586
13.0
12.95 to 13.05 msec
566
2.0
1.95 to 2.05 msec
587
13.9
13.85 to 13.95 msec
(79)
Corrective action for steps 567 through 587 is: Check A10
567
2.1
2.05 to 2.15 msec
pins 18, 68, 67, 66, 65, 64, 17, 62, 16, 91, 98, 97, 94,
93, 102, 103, 92, 101, 76, 75 and 81.
568
2.2
2.15 to 2.25 msec
569
2.3
2.25 to 2.35 msec
588
CT
FUNCTION switch to PERIOD A.
570
2.4
2.35 to 2.45 msec
589
VWS
WIDTH(MS) dial to 2.0.
571
2.5
2.45
to
2.55
msec
590
PPE
Momentarily actuate TEST START switch.
572
2.6
2.55
to
2.65
msec
573
2.7
2.65
to
2.75
msec
574
2.8
2.75
to
2.85
msec
575
2.9
2.85 to 2.95 msec
3-97