Voltage Test Select Switch (S12)

TM 11-6130-392-34

(3) Remove nut (48) and washer (49) and work

(6) Fasten basket assembly to chassis with

switch back through chassis.

screws (5).

(4) Tag and unsolder leads to switch.

(7) Install cover (3) on chassis and fasten with

b. Installation.

washers (2) and screws (1).

(1) Remove tags and solder leads to switch S4

c. Removal (J3, J4, J5, J8, J9 and J10).

(50).

(1) Remove screws (1) and washers (2) holding

(2) Install switch in chassis (4) and fasten with

cover (3) to chassis (4).

washer (49) and nut (48).

(2) Remove screws (5) holding printed wiring

(3) Install knob (47) on switch and tighten set

board basket assembly (6) in chassis.

screws (46).

(3) Carefully remove basket assembly to gain

(4) Install cover (3) on chassis and fasten with

access to screw (7) and washer (8) holding leads to

washers (2) and screws (l).

negative terminal on capacitor C1 (9); disconnect

leads.

4-30. Voltage Test Select Switch (S12)

(4) Carefully move basket assembly out and

aside.

Removal and installation of voltage test select

(5) Remove screws (15) and washers (16) hold-

switch (figs. 4-2 and 4-3) are as follows:

i n g capacitor C 1 t o c h a s s i s . C a r e f u l l y move

a. Removal.

(1) Remove screws (1) and washers (2) holding

capacitor aside to gain access to bottom of chassis.

cover (3) on chassis (4).

(6) Remove cap screws (17) holding transform-

er T1 (18) to chassis. Carefully move transformer

(2) Loosen set screws (41), holding knob (42) on

switch S12 (45), and pull knob from switch.

out of chassis.

(7) Remove screws (5, fig. 3-10) and nuts (6)

(3) Remove nut (43) and washer (44) and work

holding EMI bracket (7) to chassis. Carefully move

switch back through chassis.

EMI bracket aside.

(4) Tag and unsolder leads to switch.

b. Installation.

(8) Unsolder lead to jack.

(9) Remove nut (77) and washers (78 and 79)

(1) Remove tags and solder leads to switch S12

holding jack to chassis. Remove jack.

(45).

d. Installation (J3, J4, J5, J8, J9 and J10).

(2) Install switch in chassis (4) and fasten with

(1) Install jack in chassis (4) and fasten with

washer (44) and nut (43).

nut (77) and washers (78 and 79).

(3) Install knob (42) on switch and tighten set

(2) Solder lead to jack.

screws (41).

(3) Position filter assembly A15 (82) in chassis

(4) Install cover (3) on chassis and fasten with

and fasten with screws (80) and nuts (81).

washers (2) and screws (1).

( 4 ) Position EMI bracket (7, fig. 3-10) in

4-31. Terminal Board (TB1)

chassis and fasten with screws (5) and nuts (6).

( 5 ) Install transformer T1 (18, fig. 4-3) in

Removal and installation of terminal board (figs. 4-2

chassis and fasten with cap screws (17).

and 4-3) are as follows:

(6) Install capacitor C1 (9) in chassis and fasten

a. Removal.

with screws (15) and washers (16).

(1) Remove screws (1) and washers (2) holding

(7) Install printed wiring board basket assem-

cover (3) on chassis (4).

bly (6) in chassis.

(2) Tag and unsolder leads to terminal board

( 8 ) Connect leads to capacitor C1 (9) with

TB1 (59).

screws (7) and washers (8).

(3) Using a wrench, hold standoff (60) and

( 9 ) Fasten basket assembly to chassis with

remove nut (58). Remove terminal board.

screws (5).

b. Installation.

(10) Install cover (3) on chassis and fasten with

(1) Install terminal board TB1 (59) on screws in

washers (2) and screws (1).

chassis (4).

(2) Install nuts (58) on screws and tighten nuts.

4-29. Channel Select Switch (S4)

(3) Remove tags and solder leads to terminals

on terminal board.

Removal and installation of channel select switch

(4) Install cover (3) on chassis and fasten with

(figs. 4-2 and 4-3) are as follows:

washers (2) and screws (1).

a. Removal.

(1) Remove screws (1) and washers (2) holding

4-32. Start Time Switch (S2)

cover (3) on chassis (4).

Removal and installation of start time switch (figs.

(2) Loosen set screws (40), holding knob (47) on

4-2 and 4-3) are as follows:

switch S4 (50), and pull knob from switch.

4-23