TM 11-5805-424-15/NAVSHIPS 0967-220-9013/TO 31W2-2G-41
Equipment
Control
Position
Equipment
Control
Position
Off.
POWER
Power Supply
UNITS PERCENT
ON.
PP-205A (p/o
INTENSITY
DISTORTION.
MARKERS.
Stelma DAC-
SYNCHRONOUS-
SYNCHRONOUS.
75-300.
INTERNAL
6A).
START-STOP.
SWEEP
MARK-SPACE 1
SPACE.
MILLISECONDS
through 8.
COURSE.
LEVEL CODE .....
8.
BAUDS ...............
Determined
by
Counterclock-
INTERNAL
MX-73(*)/G.
wise.
SWEEP
PATTERN
REVERSALS
MILLISECONDS
SELECTOR.
FINE.
CHARACTER
FREE RUN.
AUTO.
SWEEP
RELEASE.
OPTIONS.
JACK
SIGNAL
LOW LEVEL.
OFF.
POWER. .............
Data
Scan
SELECTOR.
MD-674(P)/G
BAUD RATE .......
Determined
by
OFF.
CHARACTER
Scope DSS-
MS-73(*)/G.
BLANKING.
205A
(p/o
INPUT SELECT ..
DATA.
Midposition.
VERTICAL GAIN
Stelma DAC-
ALARM ...............
DISABLE.
and CENT.
6A).
50K Ω
INPUT ................
Counterclock-
INTENSITY
50K Ω
OUTPUT.............
wise
c. Tests.
Midposition.
FOCUS
and
Note.
ASTIGMATISM.
Be sure all strapping options are
connected
Midposition.
HORIZONTAL
GAIN and CENT.
(1)
Operate the POWER switches on the PP-
----
INPUT
205A and on the MD-674(P)/G to ON.
POLARITY.
The SIGNAL indicator lamp on the DD-
INPUT SELECT ..
LOW LEVEL.
205A should be lighted, the front panel
INPUT FILTER ....
IN.
meter should indicate zero distortion, and
BAUDS ...............
Determined
by
Distoration
the reversals pattern should be observed
low
speed
Analyzer DD-
on the DSS-205A after adjustment of the
modem.
205A
(p/o
VERTICAL,
INTENSITY,
FOCUS,
Stelma DAC-
HORIZONTAL, and INTERNAL SWEEP
SYNCHRONOU
6A).
MILLISECONDS controls of the DSS-
NOUS.
S-START-STOP.
205A; the ALARM lamp on the MD-
UNIT
674(P/G
front
panel
should
be
INTERVALS.
10.
extinguished.
TRANSITION
SELECT:
(2)
Operate the ALARM switch on the MD-
674(P)/G (fig. 2-3) to NORM; the ALARM
Left hand ..........
MARK
indicator
lamp
should
remain
Right hand........
SPACE.
extinguished, and all other indications
DISTORTION
Pattern
ALL.
should be as indicated in (1) above.
SELECT.
AVG.
RESET................
PG-205A (p/o
(3)
Operate the INPUT SELECT switch (fig.
DISTORTION......
Stelma DAC-
AUTO.
TENS PERCENT
6A).
OFF.
lamp should light, and a zero voltage
DISTORTION.
0.
(ground) should be measured at the
Change 3
6-4
