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TM 11-5820-890-20-2
2-68
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 22
PSA DS1 IS NOT LIT WITH AM 1780 MAIN PWR SET TO NORM.
(Sheet 2 of 5)
NOTE:
The CX 13313 and CX 13300 may be
connected to either MB J3 or J4. These
cables then connect to the AM 1780
connector J501. Connector J501 provides
the dc power to the rest of the VIC system.
J
H
P
K
S
R
N
M
L
F
E
D
B
A
C
V
U
T
MB J5
2
SH 3
1. REMOVE CX 13313 FROM MB J3 OR J4.
2. CHECK CONTINUITY AT MB J5, PIN E
TO PIN A (GND).
NO
YES
SHORT
TO
GROUND
?
REPLACE MB.
1. REMOVE PSA FROM MB.
2. CHECK CONTINUITY AT MB J5, PIN E
TO PIN A (GND).
NO
YES
SHORT
TO
GROUND
?
3
SH 4
1
SH 2
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