6
TK-860G/862G
INSTALLATION

■Others

If the PA and HR2 are not necessary and the speaker out-

put is output to an external unit through the KCT-19, connect

the KCT-19 C connector to CN8 on the TX-RX unit.

8C
R21
Q5
Q1
D2
Q6
Q1
Q6
4
IC9
Shift
register
IGN
±+
±+
KAP-1 (SWITCH UNIT : X41-3380-20)
W1
1
2
3
HOR
E
SB
W2
1
2
3
PA/LI
SPO
SPI
CN1
1
2HR2
NC
CN2
1
2
3
HR1
E
SB
CN3
1
2PAO/LIO
E
R1 0
C5 1000P
C6
1000P
C7
1000P
K2
D1
C3 0.01
C1
1000P
R3 0
R4 0
C2
1000P
D2
K1
C4 0.01
Q1
Q1 : DTD114EK
D1,2 : 1SS193
CN3
CN7
13
+
R153
Audio
power amp
IC13
CN8
1
2
SP
E
Internal/External
speaker
TX-RX UNIT
B
BRN
ORG
YEL
C
C
GRN
GRN
KCT-19
13 10 1
36
12
15
KCT-19 Terminal
6 : Earth
10 : HR1
12 : PA (HR2)

Fig. 6

■Modifying the Transceiver

•Horn alert

The signal from pin 4 of IC9 on the TX-RX unit turns Q5

and Q1 on and off and drives KAP-1 HA relay K2 to drive the

horn with a maximum of 2A.

The default output is HR1. The relay open output can be

obtained between HR1 and HR2 by removing R1 in the KAP-

1.

R1 Output form
HR1 (Default) Enable
HR2 Disable
HR1
HR1HR2
R1
TX-RX UNIT (A/2)ANTKCT-19CN2Q19R122R153

Fig. 4 KAP-1 foil side view

•Public address

The signal from pin 13 of IC9 on the TX-RX unit drives PA

relay K1 in the KAP-1 and switches the audio power ampli-

fier output between the external PA system (through KCT-

19) and internal and external speakers.

To use the PA function, R153 on the TX-RX unit must be

removed.

R153
Use the PA function Disable
Do not use the PA function Enable

Fig. 5