Figure 8-8. Electronic Component Assembly No. 2 A2 Parts Location Diagram

ARMY TM 5-6675-309-14

MARINE CORPS TM 08840A-14/1

Figure 8-8. Electronic Component Assembly No. 2 A2 Parts Location Diagram

curing connector J1 (52) to PSTS front

1. Place PSTS front panel (51, figure 8-6,

panel (51).

sheet 1) in PSTS instrument case (1).

Align mounting holes.

Replace wires on connector J1 (52).

2. Install 20 screws (49) and washers (50)

Place PSTS front panel (51) in PSTS in-

securing PSTS front panel (51) to PSTS

strument case (1). Align mounting holes.

instrument case (1).

Install 20 screws (49) and washers (50)

(36) Connectors J1 thru J7. Remove and replace

securing PSTS front panel (51) to PSTS

typical connector J1 (52, figure 8-6, sheet 1) as

instrument case (1).

follows:

e. PSTS Adjustments. The PSTS adjustments con-

(a) Removal.

sist of adjusting two modular power supplies to their

Remove 20 screws (49) and washers (50)

specified output voltage, adjusting two timer circuits to

securing PSTS front panel (51) to PSTS

their specified times, and adjusting a current limiter

instrument case (1). Remove PSTS front

circuit. All adjustments should be performed every 90

panel far enough to provide access to

days. Make sure +28V power source is turned off.

connector J1 (52) .

Connect the PSTS to the +28V power source with

cable W311 (see figure 8-4). Check that polarity is

Tag and remove wires from connector J1

correct. Connect cable W301 connector P2 to PSTS con-

(52). (Do not unsolder wires from lug.)

nector J3 and cable W302 connector P2 to PSTS connector

Remove four nuts (55), washers (54),

J2. Leave other end of cables disconnected. See figure 8-9

screws (48), and one terminal lug W13

for location of adjustments and perform adjustment pro-

(53) securing connector J1 (52) to PSTS

cedures in accordance with the following paragraphs.

front panel 51). Remove connector.

(b) Replacement.

(1) Modular power supply PS1 voltage adjustment.

Replace connector J1 (52) in PSTS front

Perform voltage adjustment of modular power

panel (51).

supply PS1 as follows:

Install four screws (48), washers (54), nuts

(a) Turn on +28V power source and set IN-

PUT POWER PSTS circuit breaker to ON.

(55), and one terminal lug W13 (53) se-

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