400 SERIES MAINTENANCE MANUAL
Page B-15
P/N 190-00140-05
Rev. C
B.6
GLIDESLOPE BOARD CONNECTORS
B.6.1 J25
Table B-17. J25 Descriptions
Pin #
Pin Name
I/O
DESCRIPTION
1
+12VDC
I
2
+5VDC
I
3
GND
I
Ground.
4
-12VDC
I
5
G/S IF AGC
O
The IF AGC output. 10K output impedance.
6
G/S Composite
O
Not Used.
7
G/S SERIAL_IN
I
Serial input from Main Board.
8
G/S SERIAL_OUT
O
Serial output from G/S Board to Main Board.
9
G/S + FLAG
O
This output indicates whether course deviation is valid or not.
10
G/S + UP
O
This is the vertical course deviation output for the G/S.
11
G/S -[COMMON]
O
Reference for G/S + UP and G/S + FLAG outputs.
12
GS SUPERFLAG
OUT
O
G/S superflag output is an open collector output. The G/S superflag will be
active (low) when the flag is out of view.
13
KEY
Polarization Pin
14
RF AGC
O
Not Used
15
SPARE
SPARE
16
KEY
Polarization Pin
B.7
KEYBOARD CONNECTORS
B.7.1 J23
See description of LCD Flex (J12).
