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TM 11-5820-890-20-2
2-41
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
CHART 8
AM 1780 RELAYS CLICK AND NO SIDETONE HEARD
AT A PARTICULAR POSITION OF MONITOR SWITCH.
(Sheet 3 of 4)
CHART:
POSITION
PIN
ALL
A
INT
C
L
M
E
B
B
A
G
J
GND
A
N
CX 7060
D
E
F
G
P
N
M
L
B
C
H
J
K
A
1. REMOVE CX 7060 FROM HULL BENDIX
CONNECTOR.
2. DETERMINE APPROPRIATE PIN FROM
CHART FOR CIRCUIT DISTURBING.
3. CIRCUIT DISTURB PIN AT CABLE
CONNECTOR.
1. SET COMMANDER'S C 2298 MONITOR
SWITCH TO POSITION THAT FAILED IN
C 2297.
2. REMOVE CX 7060 FROM TURRET BENDIX.
3. DETERMINE APPROPRIATE PIN FROM
CHART FOR CIRCUIT DISTURBING.
4. CIRCUIT DISTURB PIN AT CABLE
CONNECTOR.
NO
YES
CLICKING
SOUND HEARD
IN HS
?
3
SH 4
2
SH 3
CX 7060
NO
YES
CLICKING
SOUND HEARD
IN HS
?
REPLACE CX 7060.
VEHICULAR WIRING IS
BAD.
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