Terminal Board TB1 Removal and Replacement.

TM 32-5865-218-24&P

(3)

Remove the top cover (2) in accordance with paragraph

5-12a.

(4)

Remove the bottom cover (9) as given in paragraph 5-12c.

Tag the wires to identify transistor (21) connections.

(5)

Remove the nut (22) that secure the wires and terminal

(6)

Tag and unsolder

lugs (23) to the transistor (21).

other wire connections.

Remove the two screws (24), nuts (25), flat washers (26),

(7)

lock washers (27), and insulators (28) that secure the

transistor (21) to the ECM bracket (36) above the

Remove the transistor (21).

indicator CCA.

To replace, aline the replacement transistor with the

(8)

mounting holes and secure with the two screws (24), flat

washers (26), lock washers (27), insulators (28), and

nuts (25).

Attach the terminal lugs (23) to the transistor (21) as

(9)

tagged during removal with the nuts (22). Solder other

wires to the transistor as tagged during removal.

(10) Replace the bottom cover (9) as given in paragraph 5-12c.

(11) Replace the top cover in accordance with paragraph 5-12a.

(12) Replace the indicator CCA (13) as given in paragraph

5-12g.

(13) Replace front panel plate (11) in accordance with

paragraph 5-12d.

(14) Refer to section V of this chapter.

Refer to figure

m. Terminal Board TB1 Removal and Replacement.

5-13 and proceed as follows:

Use a heatsink when resoldering components

on TB1 to prevent damage to heat-sensitive

components.

(1)

Remove top cover (2) in accordance with paragraph 5-12a.

Tag all wiring connected to TB1 (29), then unsolder

(2)

wiring.

Remove six screws (33), flat washers (34), and spacers

(3)

(35) that secure TB1 to ECM bracket (36), then remove

TB1.

5-46