TM 9-4120-402-14
4-32. ELECTROMAGNETIC INTERFERENCE FILTER (FL1). -continued
WARNING
Capacitors can retain a high electrical charge. Touching the terminals of a
charged capacitor can result in severe electrical shock and skin burns. Always
ground the terminals of a capacitor as soon as they are exposed.
(3) Disconnect the P15 (5) and P16 (6) plugs from the electromagnec interference filter (4).
it
(4) Discharge filter capacitors at connector J15.
(5) Check electromagnetic interference filter (4) for dents, punctures, and evidence of overheating.
(6) Check connectors J15 and J16 for loose, missing, or broken contacts.
(7) Replace filter (4) if badly dented, punctured, burnt, or connectors have loose, missing, or broken contacts.
b. Test.
(1) Check continuity between J16 contacts A, B, C, D, and E to filter case. If continuity is indicated, replace
filter.
(2) Check continuity as shown in table 4-5. If electromagnetic interference filter (4) does not meet continuity
requirements, replace it.
NOTE
Continuity testing does not necessarily predict the behavior of capacitors under load. If the filter
still does not operate properly after passing the continuity test, substitute a filter known to be
good.
Table 4-5. Electromagnetic Interference Filter (FL1) Test Points.
From receptacle
To receptacle
Indication
J15, pin
J16, pin
A
A
Continuity
A
B
None
A
C
None
A
D
None
A
E
None
B
B
Continuity
B
C
None
B
D
None
B
E
None
C
C
Continuity
C
D
None
C
E
None
D
D
Continuity
D
E
None
E
E
Continuity
4-101
