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
599
TTS
POWER switch to OFF.
NOTE
600
PP
DMS switch to OFF.
The following three steps are a timed run. Read
601
MCP
Remove 1W1-P3 from J7 and connect 1W2-P2 to J7.
before proceeding.
602
PP
DMS POWER switch to ON. Momentarily actuate TEST START switch.
619
CIP
RUN/HOLD/OFF switch to RUN.
TP
620
OSC
Position trace to top line.
603
MCP
SELECTOR A switch to G21.
621
OSC
In approximately 4.0 sec. observe the amplitude of the negative
604
MCP
DMM LO switch to SYS GND.
pulses from the center of the main trace to the peak negative
605
CIP
COUNTER INHIBIT(SEC) dial to 06.00.
excursion and record for use in step 632. Do not consider minor
606
PPE
Momentarily actuate TEST START switch (power on).
narrow excursions or overshoots.
607
CIP
Observe INHIB lamp illuminated.
(45)
608
DM4
Repeat the DM1 Vac reading by adjusting the OAF AZIMUTH and
622
TKP
TRACKER POWER switch to OFF.
TTS
ELEVATION controls.
623
MCP
Remove the 1W20 cable between J12 and J13.
624
MCP
SELECTOR A switch to G21.
609
DMM
Observe a reading of 0.1380 to 0.2300 Vac and record for use in
625
TTS
Connect a jumper between 1A8A1-J4 and 1A8A2-J1 (BLK).
step 631.
626
RAD
FULL SCALE switch to 10-7.
(46)
627
DMM
Observe a reading of 0.092 to 0.7600 Vac and record for use in
610
MCP
SELECTOR A switch to F17.
step 631.
611
MCP
SELECTOR B switch to D19.
612
MCP
SELECTOR C switch to C24.
1A8A1-J4 and 1A8A2.
613
MCP
Connect a 1W20 cable between J12 and J13.
628
OSC
Observe the peak-to-peak amplitude of the sinewave to be between
614
CIP
RUN/HOLD/OFF switch to HOLD
0.494 and 0.821 VP-Po Make suitable OSC INTENSITY, FOCUS, AND
615
CIP
COUNTER INHIBIT(SEC) dial to 13.00
ASTIGMATISM adjustments and then take reading from center-to-
616
OSC
CHANNEL A VOLTS/DIV switch to 1.
center of the trace excursions. Ignore narrow excursions, over-
617
OSC
-/+ pushbutton to -.
shoots, and transients. Record for use in step 632.
618
TKP
TRACKER PWR switch to ON.
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