REPLACE PMC COMMUNICATIONS CABINET + 5 V POWER SUPPLY

TM 5-6350-275-24&P

b. Installation

(1)

Connect power supply to front panel assembly using four screws (8), washers (9), and nuts (10).

(2)

Connect tagged wires to TB (Item 12).

(3)

Connect tagged wires to input terminal power block. (Item 13)

(4)

Place protective cover (5) over power supply and secure to standoffs (7) using four screws (6).

(5)

Connect power supply ac power cord to ac power source.

(6)

Tie down input/output wiring to power supply, using plastic tie down straps.

(7)

Close rear door on PMC cabinet.

(8)

Place power supply A switch (Figure 3-33, 2) and power supply B switch (4) to on.

3-28. REPLACE PMC COMMUNICATIONS CABINET + 5 V POWER SUPPLY. (Figure 3-33 and 3-34).

INITIAL SETUP:

This task consists of:

a. Remove

b. Install

INITIAL SETUP:

Tools:

Equipment Condition:

Screwdriver, Flat tip (Item 6, App B)

PMC cabinet doors open

Screwdriver, Flat tip (Item 7, App B)

General Safety Instructions:

Materials/Parts:

Remove all jewelry while working on

5 vdc Power Supply

equipment.

Wear ESD wriststrap while handling electronic

assemblies.

WARNING

When working on high-voltage components, always have an additional person present, and keep one hand

away from equipment to reduce hazard of current flowing through vital organs of body. Remove all

jewelry from fingers, wrists, and neck before working on electrical components. Failure to do so may

result in serious injury or death.

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)

Place power supply A switch (Figure 3-33, 14) and power supply B switch (Figure 3-33, 10) to off.

(2)

Open rear door on PMC cabinet B and remove power supply ac power cord from ac power source.

3-102