TM 5-3610-253-14
b. Power Module (PM). Located in the bottom left side of the machine.
Controls the distribution of power within the system. It is comprised of:
(1) Power module distributor board (PMD). The main power lines coming from
the Star-Delta switch enter three 10 amp circuit breakers on the PMD. These circuit
breakers protect the backgauge motor, the fluorescent table lamp, and the main
transformer. A relay (K304) is used to control the main transformer. This relay is
actuated by pressing the control power on switch after the Star-Delta switch has
position. The PMD board also consists of three full wave
been turned to the
rectifiers, (PM.V1), (PM.V2) and (PM.V3). (PM.V1) is used to convert 40 V ac to 42 V
dc for use with solenoids. (PM.V2) is used to convert 11.5 V ac to 9 V dc for use
with the power module rectifier board. (PM.V3) is used to convert 32 V ac to 32 V
dc for use with the 5.1 and 24 V dc power supplies. Inputs of these rectifiers are
from the power module fuse board.
(2) Power module fuse board (PMF). Receives inputs from the main transformer.
Contains secondary bus type fuses for protecting various components of the
electronic system. (Table 5-10 shows use for each fuse.)
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