REPLACE 12 VDC, 12 POINTS, EXTERIOR SUB-RADC (LEDA) WITH POWER SUPPLY

TM 5-6350-275-24&P

3-74.

REPLACE 12 VDC, 12 POINTS, EXTERIOR SUB-RADC (LEDA) WITH POWER SUPPLY. (See Figure 3-43).

This task covers:

a. Remove

b. Install

INITIAL SETUP

Equipment Condition:

General Safety Instructions:

Input power removed

Remove all jewelry while working on

Enclosure access cover removed

equipment.

Wear ESD wriststrap while working on

Tools:

equipment.

Screwdriver, flat tip, (Item 6, App B)

Screwdriver, flat tip, (Item 7, App B)

Materials/Parts:

Open End Wrench (Item 14, App B)

12 Point Exterior Sub-RADC (Leda) /w Power

Supply Assembly

WARNING

Shut off power source before attempting to disconnect, service, or connect wires or cables.

Failure to do so may result in serious injury or death.

a. Removal

(1) Using a flat tip screwdriver, loosen three screws on input power terminal (7), and remove the three input

power cord leads.

(2) Remove the two slip-on terminals from the battery (27) positive and negative terminal connections.

(3) Tag and remove the two wires from tamper switch (18) and Leda Flex PWA TB-7 (3) pins 2 and 3.

(4) Using a flat tip screwdriver, loosen the screws on the Leda Flex PWA (2), TB-7 (3) pins 4 and 5. Tag and

remove the two data wires.

(5) Remove slip-on terminal strips (26), (25) and (24) from Leda Flex termination PWA (1).

(6) Using an open end wrench, remove the four nuts (5) holding the Leda Panel Assembly (6) to enclosure and

remove the Leda Panel Assembly (6).

b. Installation

(1) Align the Leda Panel Assembly (6) mounting holes up with the enclosure standoffs and secure with four

nuts (5).

(2) Connect slip on terminal strips (26), (25) and (24) to Leda Flex termination PWA (1).

(3) Connect the two tagged data wires to Leda Flex PWA (2) TB-7 (3), pins 4 and 5.

(4) Connect the two tagged wires from tamper switch (18) to Leda Flex PWA TB-7 (3) pins 2 and 3.

(5) Connect the two slip-on terminals to the battery (27) positive and negative terminal connections.

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