Table 2-1. Operator's Controls. (cont)

TM 1-6625-735-14

Table 2-1.

Operator's Controls. (Cont)

CONTROL, INDICA-

TOR, TEST POINT, OR

CONNECTOR

FUNCTION

YAW RATE Simulator

Provides capability for simulating SAS amplifier dc yaw rate output signals.

This simulation signal is used for testing rate/lagged rate and washout func-

tions of SAS amplifier yaw channel. SAS amplifier dc yaw rate output can be

monitored at test set YAW RATE test point.

SIM Test Point

Provides monitoring capability for SAS amplifier dc yaw rate simulation sig-

nal. When mode selector switch is at SIM 1 or SIM 2, SIM test point is con-

nected to YAW RATE TESTtest point.

L/R Control

Supplies variable dc simulation signals through selected positions of mode

selector control to SAS amplifier. From 0 vdc reference, turning control L sup-

plies negative voltage to SIM test point, and turning control R supplies posi-

tive voltage to SIM test point. Control can be turned 10 complete turns from

each mechanical stop.

Mode Selector Control

NORM position disconnects variable dc simulation signal selected by L/R con-

trol from SAS amplifier. When control is moved from SIM 1 to NORM, one

polarity of bipolar gain of SAS amplifier washout function can be checked.

SIM 1 connects SIM test point to YAW RATE TEST test point. When control

is moved from SIM 2 to SIM 1, one polarity of bipolar gain of SAS amplifier

washout function can be checked. SIM 2 bypasses SAS amplifier washout

function, allowing proportional gain of rate/lag rate function of SAS amplifier

to be checked using L/R control. Bipolar gain check of SAS amplifier washout

function can be done by selecting steady state dc simulation voltage, using L/R

control with mode selector control at SIM 2 and monitoring decay time of

SAS amplifier response when mode selector control is moved to SIM 1 and

then to NORM. SIM 2 also connects SIM test point to YAW RATE TESTtest

point.

ROLL ATT Simulator

Provides capability for simulating or monitoring No. 2 vertical gyro-roll three-

wire output signal. This simulation signal is used for testing stability augmen-

tation system (SAS) amplifier roll proportional, derived rate, and rate/lagged

rate plus proportional functions.

X, Y, and Z SNSR Test

Provide monitoring capability for three-wire roll signal output of No. 2 vertical

Points

gyro. When mode selector control is at NORM, X, Y, and Z SNSR test points

are connected to X, Y, and Z SIM test points, respectively.

X, Y, and Z SIM Test

Provide monitoring capability for No. 2 vertical gyro-roll three-wire output

Points

simulation signal when mode selector control is at SIM 1 or SIM 2. When

mode selector control is at NORM, X, Y, and Z SIM test points are connected

to X, Y, and Z SNSR test points, respectively.

Synchro Transmitter

Supplies variable three-phase ac simulation signal through SIM 1 and SIM 2 of

mode selector control, and through test set connector J3 to SAS amplifier. This

simulation signal can be monitored at X, Y, and Z SIM test points.

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