Receiver Power Panel

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Detailed Block Diagram

TM-55-1905-220-14-9 Landing Craft Utility LCU 1671-1679 NSN 1905-01-009-1056 Manual

Receiver Schematic

TM 55-1905-220-14-9

4-66.1. TANK LEVEL INDICATION - RECEIVER - MAINTENANCE INSTRUCTIONS (Continued).

(2)

Receiver Power Panel.

The distribution of ac and dc power in typical receiver modules is shown below. Ship's 115 volt, 60 Hz ac

power is applied over two leads to ON-OFF-FULL REF switch S1. One lead is connected through protective

FUSE, I AMP fuse F1, the other lead directly. When the switch is placed in either the ON or FULL REF

position, the ac input is connected across power lamp DS1 to the primary of transformer T1. The power lamp

lights and transformer T1 produces a stepped down ac voltage at its secondary. The stepped down voltage is

applied to non-repairable, plug-in power supply PSI. Power supply PS1 develops +17-volt and current limited

+17-volt dc output levels, which are distributed as shown.

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Receiver Schematic.

Refer to the figure below for schematic diagram.

4-1397