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Connector J4 Replacement.
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GASKET REPLACEMENT. - TM-32-5865-216-24-P0072
TM 32-5865-216-24&P
CIRCUIT CARD ASSEMBLY REPAIR PROCEDURES.
Removal and replacement of a CCA component requires the use
of a low-wattage (30 watts or less) soldering iron and appropriate
heatsinks.
Standard shop practices, along with general practices and
precautions for CCA and microelectronic components, should be
observed when performing these repairs.
5-12.1. Power  Supply  CCA
A1
Repair
Procedures. Refer to figure 5-3
for component locations.
When replacing heatsink mounted components Q2, Q5, Q6, and
a.
CR6, lightly coat component and heatsink mating surfaces with
thermal transfer compound (item 4, Appendix D).
b.
Apply adhesive (item 1, Appendix D) to capacitors C1, C2, C6,
C9, C10, C13, and C14 to attach them to circuit board.
c.
Apply a continuous fillet of adhesive (item 1, Appendix D) to
area behind plug P1.
Determine type of conformal coating used on repaired CCA.
d.
Test a small area away from components with freon TFE, TE, or
TME (item 6, Appendix I)).
If freon strips away coating,
coating is humiseal 1R31.
If it does not strip away, coating
is humiseal 1A33.
Patch conformal coating with appropriate
type of humiseal in test and repair areas.  Humiseal 1A33 and
1B31 (items 10 & 11, Appendix D) are not compatible.
Patch
conformal coating only with type already present on CCA.
5-12.2. Motor Control CCA A2 Repair Procedures.
Refer to figure 5-4
for component locations.
When replacing heatsink mounted components Q1, Q2, Q3, and
a.
Q4, lightly coat component and heatsink mating surface with
thermal transfer compound (item 4, Appendix D).
Apply a continuous fillet of adhesive (item 1, Appendix D) to
b.
area behind plug P1.
.
c.
Determine type of conformal coating used on repaired CCA.
Test a small area away from components with freon TFE, TE, or
T M E . If freon strips away coating, coating is humiseal 1B31.
Patch
If it does not strip away, coating is humiseal 1A33.
conformal coating with appropriate type of humiseal in test and
Humiseal 1A33 and 1B31 (items 10 & 11, Appendix
repair areas.
Patch conformal coating only with type
D) are not compatible.
already present on CCA.

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