KING KR 21 - Page 37

(MA20/KR 21
MARKER
BEACON
RECEIVER/
ISOLATION
AMPLIFIER
PIN
FUNCTION
VERSION
1
A/C
Ground
-00
through
-16
2
Inst.
Light
Ground
-00
through
-16
3
Inst. Light
Dimmer
(13.75VDC)
-00
through
-16
4
A/C
Power
-00
through
-16
5
Non-Switching
500 ohm
Input
-00
through
-16
6
Speaker Output
(Comm
1)
-00
through
-16
7
Speaker Output
(Comm
2)
-00
through
-16
8
Speaker Load Common
(Comm1
and
2)
-00
through
-16
9
Ramp
Hailer 8
ohm
-00
through
-16
10
A/C
Speaker
4
ohm
-00
through
-16
11
Mic Audio
In
-00
through
-16
12 HF Mic Audio
-00
through
-16
13
HF
(Radio
Tel)
500 ohm Input
No Conn. for
versions
-00,
-03,
-06,
-08,
-09,
-13,-14,-15
and-16.
HF
Audio
In
for
versions
-01,
-02,
-04,
-05,
-07, -10,
-11.
Radio
Tel
Audio in
for version
-12
14
Comm
1
Audio
-00
through
-16
15
Comm
2
Audio
-00
through
-16
16
Nav
1
Audio
-00
through
-16
17 Marker Ant
-00
through
-16
18
Marker
Ant.
Ground
-00
through
-16
19
Wht. Light Out
-00
through
-15
Marker Beacon Rcvr
Audio
In for
version
-16
-
?/
/
Ÿ
20
Blue
Light
Out
-00
through
-15
No
conn. for version
-16
21
Amber Light Out
-00
through
-15
No
conn.
for version
-16
22
4
ohm
PA
Speaker
-00
through
-16
23
Mic
Key
In
-00
through
-16
24 HF
Mic
Key
-00
through
-16
25
Comm
1
Mic
Key
-00
through
-16
26
Comm
2
Mic
Key
-00
through
-16
27 Comm
1
Mic Audio
-00
through
-16
28
Comm
2
Mic
Audio
-00
through
-16
29 Nav
2
Audio
-00
through
-16
30
ADF Audio
-00
through
-16
31
DMEAudio
DMEAudio for
versions
-00,
-01,
-03,
-04,
-06,
-07, -12, -13,
-15
and
-16.
ADF #2
Audio
for versions
-02, -05,
-11
and
-14.
No conn.
for versions
-08,
-09
and
-10
32
Headphone
Out
-00
through
-16
FIGURE
2-8
PIN
FUNCTIONS
FOR
066-1024-00
THRU
-16
Rev.
2,
June,
1976
Page
2-11