Section IV. REPAIR OF ELECTRONIC INTERFACE ASSEMBLY (EIA)

TM 9-1270-212-14&P

Section IV. REPAIR OF ELECTRONIC INTERFACE ASSEMBLY (EIA)

f. Assemble items

(12)

through

(2)

revers

5-20. EIA Disassembly and Assembly

disassembly sequence.

a. Remove items (2, fig. B-10) through (12).

5-21. Electronic Interface Subassembly Disassembly and

b. Slice the circuit card extractor handle over the top

Assembly.

lugs of each of circuit cards A12 (13), A13 (14), A11 (15),

A10/A15 (16), and A9 (17) and remove the card by pulling

a. XM128 EIA (fig. 5-5).

it straight out.

(1) Remove items (1) through (72), except items (6),

(7), (8), (24), (27), (33), (40), (57), (58), (66), (67), and

(69). Unsolder and mark leads where necessary.

When loosening the connector hold screws on

NOTE

the buffer-amplifier cable connectors, take care

Resistors R9 and R10 mounted on TB1 (56)

to prevent damage to the cable harness.

and resolver B1 (33) are a matched set. The

c. Remove items (18) through (21).

resistors are furnished with the resolver.

d. Assemble each of eight buffer amplifiers (21),

(2) Carefully break the adhesive that anchors the

wire bundles to the replaceable components.

including flat washer (20), lockwasher (19), and screw (18),

as illustrated in figure 54.

(3) Assemble items (72) through (1) in revers

disassembly sequence.

c. Assemble circuit cards A9 ( 17, fig. B-10), A10/A15

(16), A11 (15). A13 (14), and A12 (13) by sliding the cards

(4) Verify that replacement transformer T2 (16) has

down the teflon guide and into the mating connector. The

a soft-tempered, coated, AWG 24, uninsulated, solid bus

cards are keyed and marked to insure proper placement and

wire, conforming to QQ-W-343, between terminals 2 and 3.

should be firmly pressed into the mating connector.

Figure 5-4. Buffer amplifier installation

5-10