TM 11-5840-281-12-1
1-15.
COMPONENT PRINCIPLES OF OPERATION. (CONT)
INDICATOR POWER SUPPLY
The indicator power supply contains five circuit cards that provide the regulated and unregulated dc voltages required by
the control-indicator circuits. The five circuit cards are the fixed coil amplifier, 18v voltage regulator, indicator rectifier,
12v voltage regulator, and 35v voltage regulator. The fixed coil amplifier provides the reference voltages to position the
time-base sweep horizontally and vertically on the crt. The 18v voltage regulator provides regulator reference signals to
the horizontal and vertical series regulators, which in turn supply the regulated - 18v to the horizontal and vertical
deflection coils. Unregulated rectified voltages are supplied to the 12 and 35v voltage regulators by the indicator rectifier
circuit. The 12v voltage regulator supplies regulator control signals to the 12v series voltage-regulator transistors, which
in turn supply the regulated - 12 and + 12 voltages used in the control-indicator circuits. Regulated + 35 and - 35
voltages required by the control-indicator circuits are provided by the 35v series-voltage regulator transistors, which are
controlled by regulator reference signals from the 35v voltage regulator. blank)
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