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TM 11-5820-890-20-2
2-90
2.2.
TROUBLESHOOTING FLOWCHARTS. Continued
Chart 27
NO RT-A MODULATION FROM COMMANDER'S C 2298.
(Sheet 6 of 14)
1. REMOVE RTs AND VAA.
2. REMOVE CX 13417 FROM MB J3.
3. REMOVE CX 13417 FROM CX 13300.
4. CONNECT CX 13300 TO MB J3.
5. INSTALL RTs AND VAA
6. SET RT-A FCTN TO SQ ON.
7. PRESS CREWMEMBER PTT AND COUNT
INTO HS.
NO
YES
CX 13417
PRESENT
?
9
SH 9
1. SET RT's TO STBY.
2. SET VAA CB1 TO OFF.
3. SET AM 1780 CB501 TO OFF.
4. REMOVE CX 13300 FROM AM 1780 J501
5. CHECK CONTINUITY AT AM 1780 J505, J506,
OR J507, PIN K TO J501, PIN U.
NO
YES
SIDETONE
HEARD
?
REPLACE CX 13417.
NO
YES
OPEN
?
10
SH 7
REPLACE AM 1780.
7
SH 6
V
U
T
S
R
P
N
M
L
K
J
H
F
E
D
C
B
A
AM 1780 J501, J505, J506, J507
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