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TM 11-5820-890-20-2
5-17
5.3.
TROUBLESHOOTING FLOWCHARTS. Continued
CHART 2
PSA DS1 NOT LIT WHEN CB1 IS SET TO •ON".
(Sheet 2 of 9)
J
H
P
K
S
R
N
M
L
F
E
D
B
A
C
V
U
T
MB J5
NO
YES
22 TO 32 V dc
?
1. REMOVE PSA FROM MB.
2. MEASURE VOLTAGE AT MB J5, PIN B, TO
PIN A (GND).
3
SH 3
MEASURE VEHICULAR BATTERY VOLTAGE.
NO
YES
22 TO 32 V dc
?
VEHICULAR BATTERY OR
PRIMARY POWER SOURCE
IS BAD.
REPLACE PSA.
1
SH 2
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