Regulator Assembly

TM 11-5820-873-34

(12) Reinstall two standoffs (3) on Regulator

(8) Extract Regulator Assembly 1A6A1 (20) from

Assembly 1A6A1 (22).

connector 1A6XA1 (18).

(9) Remove two mounting screws (11) and

(13) Position protective cover (2) in place and

washers (12 & 13) from terminal board 1A6TB1 (16)

secure with four mounting screws (1)

NOTE

(14) Reinstall transceiver bottom cover

Reposition terminal board 1A6TB1 for

(15) Reinstall transceiver top cover.

access to screws mounting transformer

4-10. Regulator Assembly

1A6T1.

(Fig 4-3)

(10) Remove three screws mounting right side

a Removal.

panel to front panel.

(1) Remove transceiver top cover

(11) Remove five screws mounting right side

(2) Remove four screws (1) from Regulator

panel to chassis assembly.

Assembly 1A6A1 protective cover (2) and remove cover.

(12) Remove three screws mounting right side

(3) Remove two standoffs (3) from Regulator

panel to rear panel.

Assembly 1A6A1 (22).

(13) Remove four screws mounting right side

(4) Remove four screws (4) and washers (5)

panel to Power Transformer 1A6T1 (6) and remove right

mounting capacitors 1A6A1C5 (9) and 1A6A1C9 (10) and

side panel

remove capacitors.

(14) Remove four screws (8) and washer (7)

(5) Remove two mounting screws (21) and

mounting Power Transformer 1A6T1 (6) to the Power

washers (19 & 20) from connector 1A6XA1 (18)

Supply 1A6.

(6) Extract Regulator Assembly 1A6A1 (22) from

(15) Record Power Transformer 1A6T1 wiring and

connector 1A6XA1 (18)

remove Power Transformer.

b Replacement

b. Replacement.

CAUTION

(1) Make proper Power Transformer wiring

Component side of Regulator Assembly

connections.

must face top of transceiver.

(2) Position Power Transformer 1A6T1 (6) in

place and install with four mounting screws (8) and

(1) Reinstall Regulator Assembly 1A6A1 (22) into

washers (7) through Power Supply 1A6.

connector 1A6XA1 (18).

(3) Position right side panel in place and install

(2) Position rubber support (23) between

with four screws to Power Transformer 1A6T1.

Regulator Assembly 1A6A1 (22) and Power Supply 1A6.

(4) Reinstall three mounting screws to front panel.

CAUTION

(5) Reinstall five mounting screws to chassis

Positive terminals of capacitors 1A6A1C5

assembly.

and 1A6A1C9 must match positive markings

(6) Reinstall three mounting screws to rear panel.

on Regulator Board.

(7) Position terminal board 1A6TB1 (14) in place

(3) Position capacitors 1A6AlC5 (9) and 1A6A1C9

and secure with two mounting screws (11) and washers

(10) and secure each with two mounting screws (4) and

(12 & 13).

washers (5) through Regulator Assembly 1A6A1 (22).

CAUTION

(4) Reinstall two mounting screws (21) and

Components side of Regulator Assembly

washers (19 & 20) in connector 1A6XA1 (18).

must face top of transceiver

(5) Reinstall two standoffs (3) on Regulator

(8) Reinstall Regulator Assembly 1A6A1 (22) into

Assembly 1A6A1 (22).

connector 1A6XA1 (18).

(6) Position Regulator Assembly 1A6A1

(9) Position rubber support (23) between

protective cover (2) and secure with four screws (1).

Regulator Assembly 1A6A1 (22) and Power Supply 1A6.

(7) Reinstall transceiver top cover.

4-11. Receiver/Exciter Mother Board

CAUTION

a. Removal.

Positive terminals of capacitors 1A6A1C5

(1) Remove transceiver top cover.

and 1A6A1C9 must match positive markings

(2) Remove transceiver bottom cover.

on Regulator Board

(3) Remove four mounting screws from

(10) Position capacitors 1A6A1C5 (9) and

Receiver/Exciter top protective plate and remove plate.

1A6A1C9 (10) and secure with four mounting screws (4)

(4) Extract Audio 1A3A4, Sideband Generator

and washers (5) through Regulator Assembly 1A6A1 (22).

1A3A3, IF Filter 1A3A2 and VHF Mixer 1A3A1 circuit card

(11) Reinstall two mounting screws (21) and

assemblies.

washers (19 & 20) in connector 1A6XA1 (18).

(5) Extract protective card shield

(6) Remove four mounting screws and washers

4-33