TM9-4935-481-14-1
C3
Table 3-14. TTS Performance Test-Continued
Table 3-14. TTS Performance Test-Continued
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
STEP
UNIT
PROCEDURE
CORRECTIVE ACTION
(43)
640
CIP
COUNTER INHIBIT(SEC) dial to 17.01.
629
TTS
Remove the jumper between 1A8A1-J4 and 1A8A2-J1 (BLK).
641
CIP
RUN/HOLD/OFF switch to RUN.
630
RAD
FULL SCALE switch to 109.
642
CIP
Observe INHIB lamp illuminated.
631
Multiply the reading in step 627 by 100 and then divide this
643
DMM
Observe a reading of < 0.1380 Vac.
value by the reading in step 609. Verify the ratio to be
(48)
between 68 and 84.
644
CIP
RUN/HOLD/OFF switch to HOLD.
(47)
645
CIP
COUNTER INHIBIT(SEC) dial to 18.41.
632
Verify the ratio of the IR PULSE amplitude to the low level IR
646
CIP
RUN/HOLD/OFF switch to RUN.
peak to peak amplitude to be between 200 and 300 using the following
647
CIP
Observe INHIB lamp illuminated.
equation:
648
DMM
Observe a reading of 0.1380 to 0.2300 Vac.
RATIO = step 621 x step 631
Replace card 1A8. Check 1A8 pins
step 628
13, 26, 27 and 31.
Replace card 2A1. Check 2A1 pins
649
PPE
Momentarily actuate TEST START switch (power off).
20 and 21.
IR Irradiance Test, Trainer (_Near-Ctr-Diode)
633
CIP
RUN/HOLD/OFF switch to HOLD.
Trainer Mode
634
CIP
COUNTER INHIBIT(SEC) dial to 14.51.
650
TTS
MODE switch to TRAINER.
635
CIP
RUN/HOLD/OFF switch to RUN.
651
RAD
FULL SCALE switch to 10
636
CIP
Observe INHIB lamp illuminated.
652
PPE
Momentarily actuate TEST START switch (power on).
637
DMM
Observe a reading of 0.1380 to 0.2300 Vac.
653
DMM
Observe a reading of > 0.0920 Vac.
Replace card 1A8. Check 1A8 pins
Replace card 1A8. Check 1A8 pins
13, 22 and 25.
22 and 34.
638
TTS
Observe MONITOR meter for a reading within the IR OUTPUT
654
PPE
Momentarily actuate TEST START switch (power off).
green band (5.5 to 9.5 Volts).
(41)
639
CIP
RUN/HOLD/OFF switch to HOLD.
3-239