Removal.

TM 11-6720-242-35

Screw (H548)

AEC Assembly (IA1A1)

Washer (H549)

Screw (H2-H7)

Clamp (MP816)

Assembly, motor, gears, and tachometer-

Puck switch (S1)

generator (lA1A3)

Screw (H214)

Screw (H150)

Actuator (MP1)

Screw (M144-145)

Screw (H1)

Pin (MP814-815)

Pin (MP264)

Motor support (MP404)

Terminal (E3-E4)

Screw (H87-H89)

Identification plabe (MP266)

Shield (MP362)

Screw (H176185)

Screw (H208-209)

Pin (MP263)

Block (MP126)

Clamp (MP173-175)

Screw (H550-551)

Washer (H80-82)

Photo cell assembly (1A1A2)

Screw (MPH77)

Screw (H131-132)

Nut (H75-76)

Window (MP410)

198

Housing (MP204)

Bracket (MP128)

Figure 3-4(2)-Continued

a. Removal.

(2) Remove heat sink electrical connector

(para 3-24a, except step (1)).

(1) Loosen the captive screw (2), washer (3),

(3) Remove heat sink assembly (para 3-22).

and dzus fastener securing the cover assembly (1) to

(4) Remove connector covers (para 3-17).

the chassis assembly (36).

(5) Remove the three remaining screws (25)

(2) Pull out the aec board assembly (4),

securing each electrical connector to the front panel

control board assembly (5) and scan board assembly (6)

(28).

from chassis assembly (36) to prevent damage.

(6) Remove interconnecting board assembly

(3) Remove the two screws (10) and washers

(35) from the three posts which attach it to panel (28) by

(11) securing the electrical connector (9).

removing three screws (26). Two of the attaching screws

Remove nut (12)

saddle washer (13), screw (14)

are located below electrical connector J7 at the outer

and clamp (15) securing the harness to the front panel.

edges of the board. The third screw is located in the

(4) Remove the four screws (17) securing the

lower center of the board. Remove the board. The three

heat sink assembly (16) to the chassis assembly (36).

post remain attached to interconnecting board assembly

Support the heat sink assembly after its removal to

(35).

prevent excessive strain on the wire connections.

b. Disassembly of Interconnecting Board Assembly

(5) Disconnect the wire leads from the circuit

(fig. 3-12).

breaker terminals.

(1) Remove two posts (1) by removing

(6) Remove nut (20) and washer (21)

screws (2) and washers (3).

securing the circuit breaker (18 or 10) to the front panel.

(2) Remove post (4) by removing screw (5)

(7) Withdraw the circuit breaker from the

and washer (6).

front panel.

b. Replacement.

NOTE

(1) Attach a new circuit breaker to the front

Although connectors 2J1(7), 2J2(11),

panel of the camera control in the reverse sequence the

and 2J3(9) are dissimilar, the

parts were removed. Apply glyptal to the threads of the

procedure for the removal of

attaching screws.

contacts from all three are basically

(2) Reinstall the heat sink assembly (16), the

plug-in scan board assembly (6), control board assembly

the same.

(5), and aec board assembly (4), and attach electrical

(3) Unsolder the wires from interconnecting

connector (9) and clamp (15).

board assembly (13).

(3) Attach the camera control cover (1) and

(4) Using extracting tool MS24256-R20, push

secure with captive screw and dzus fastener.

the contacts out of the connector, from the front.

3-28. Removal and Disassembly of Interconnecting

Board Assembly

a. Removal (fig. 3-8).

(1) Remove the aec (4), control (5), and scan

board (6) assemblies from sub-classes (36). Remove

power supply assembly (para 3-25).

3-19