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Page B-12 400 SERIES MAINTENANCE MANUAL
Rev. C P/N 190-00140-05
B.4.2 J26
Table B-13. J26 Descriptions
Pin # Pin Name I/O Description
1 +12 VDC I
2 -12 VDC I
3 +5 VDC I
4 SERIAL_IN I Asynchronous serial input.
5 SERIAL_OUT O Asynchronous serial output.
6 DC_VOL_CONT I High impedance A/D input. In the unit it is fed by the center tap of a 20K
pot connected between +5V and Gnd.
7 SPARE Spare.
8 SPARE Spare.
9 GND I Ground.
10 GND I Ground.
B.5 NAV BOARD CONNECTORS
B.5.1 J6
Table B-14. J6 Descriptions
Pin # Pin Name I/O
1 VOR/LOC +TO O
2 VOR/LOC +FROM (COMMON) O
3 VOR/LOC +FLAG O
4 VOR/LOC –FLAG (COMMON) O
5 VOR/LOC +LEFT O
6 VOR/LOC +RIGHT (COMMON) O
7 VOR/LOC IF AGC O
8 VOR/LOC COMPOSITE OUT O
9 VOR OBS ROTOR C O
10 VOR OBS ROTOR H (GND) O
11 VOR OBS STATOR E/G (VOR/LOC
COMMON)
I
12 VOR OBS STATOR F I
13 VOR OBS STATOR D I
14 PARALLEL DME - 8 MHZ O
15 VOR/LOC SUPER FLAG OUT O