TM 11-4920-292-15
cable. Simulator adapter cable shall be fabrica-
readout shall indicate 0, 120, and 240 DE-
ted in accordance with figure 11-3.
GREES successively,
e. Set E1 NORM-E1 REV to OFF.
i. Set E1 NORM-E1 REV switch to E1
f. Set READOUT SELECT to EXT CX.
NORM, Record ERROR readout indication.
g. Set POWER ON-POWER OFF to
HEADING readout shall indicate 60 DE-
POWER ON.
GREES with S1 in position 3.
j. Set switch S1 to position 2 and then to
creasing headings in 15-degree increments from
position 1. Record ERROR readout indication
0 through 360 degrees, using indicated angle
at each position. HEADING readout shall indi-
values from GYRO XMTR #1 calibration card
cate 300 DEGREES, then 180 DEGREES.
supplied with simulator. Record ERROR read-
k. Algebraically add the six errors recorded
out indication at each setting. HEADING and
above and divide the sum by 6. The resultant
ERROR readout indications shall not exceed
is the 800-cycle synchro index error and shall
6 minutes difference from corrected simulator
not exceed 0 3 minutes.
settings.
i. Set READOUT SELECT to 0.
j. Set simulator for 45 degrees.
Repeatability Test
k. Set READOUT SELECT to EXT CX.
a. Set POWER ON-POWER OFF switch to
Record ERROR readout indication.
POWER OFF.
l. Set READOUT SELECT to 90.
b. Disconnect cable W4 from connectors 1J4
m. Set READOUT SELECT to EXT CX.
and 1J3 of control console.
ERROR readout indication shall be within 2
minutes of indication recorded in k, above.
n. Set POWER ON-POWER OFF switch to
POWER OFF.
d. Connect simulator connector J1 to control
o. Disconnect simulator from control console.
console connector 1J4, using simulator adapter
Figure 11-2. Test setup for .400-cycle accuracy
and repeatability test.
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