Figure 4-46.--Synchro signal amplifier, exploded view.

The synchro buffer amplifiers provide the voltage

the control power supply and are routed to BITE

and power levels for the gyrocompass heading, pitch,

indicators on the control indicator.

and roll synchro output signals.

The inverter power supply converts the battery

SYNCHRO SIGNAL

output to 115-volt, 400-Hz power and converts

AMPLIFIER

this to the proper dc levels for the synchro signal

amplifier. The inverter power supply also produces

The synchro signal amplifier (fig. 4-46) is installed

ac power for the equipment cooling fans and a vital

in the electrical equipment cabinet. It is held in the

heading reference output for the gyrocompass set

cabinet by quick-release fasteners. The synchro signal

when normal single-phase, 400-Hz power is lost.

amplifier contains four synchro buffer amplifiers, an

The inverter power supply also contains BITE

summary logic for the synchro signal amplifier.

inverter power supply, cooling blower, and BITE.

Figure 4-46.--Synchro signal amplifier, exploded view.