TM 5-3610-259-14
f. Power Supply Circuit.
Provides 3000 watts of power to the exposure lamp. It
is comprised of the following components:
(1) Autoformer (XT1).
A step up/down transformer used to supply power to the
strike transformers and the 3kW power supply circuit board. Receives power via
contacts Cl and C2 of the autoformer relay (K2).
(2) Power Factor Capacitors (C1-C4).
Provide for filtering and stabilization
of input power to autoformer.
(3) 3kW Power Supply Circuit Board.
Receives power from autoformer. Monitors
input line voltage and will shut down if input power is too high or too low.
Con-
tains circuits for detecting phasing and generating trigger pulses. These trigger
pulses are used in the high voltage strike pulse generator circuits. The high
voltage strike pulse generator circuits apply high voltage pulses to the strike
transformers.
Four LEDs on circuit board indicate operation. Two fuses provide
circuit protection.
(4) Strike Transformers (ST-1 and ST-2).
Generate the 3000 watts used by the
metal halide exposure lamp.
The secondary side of the transformers are wired to
input power and to the exposure lamp.
The primary is wired directly into the 3kW
power supply circuit board.
Section II.
OPERATING INSTRUCTIONS
2-4. DESCRIPTION AND USE OF OPERATOR’S CONTROLS AND INDICATORS.
2-10
