Installation - Kenwood NX-720H(G) Service Manual

1. Connection Cable (KCT-60: Option)
The KCT-60 connection cable kit is used to connect the
transceiver to a Horn alert cable, KCT-18 (Ignition sense
cable), KES-5 (External speaker), or through the KCT-36 ex-
tension cable.
1-1. Installing the KCT-60 (Connection cable) in the
transceiver
1. Remove the ACC. cap on the rear of the transceiver.
2. Connect the D-sub connector of the KCT-60 to the D-sub
15-pin terminal of the transceiver.
3. Connect the 15-pin connector of the KCT-60 to a Horn
alert cable, KCT-18, KES-5, or through a KCT-36 exten-
sion cable.
Note: You must setup using the KPG-141D.
KCT-60
Horn alert cable,
KCT-18, KES-5 or through
KCT-36 extension cable
1-2. Terminal function
D-sub 15-pin Pin No. Function
1
2
3 PA or EXT-SP
4
5
6 FNC1
7 FNC2
8 FNC3
9 FNC4
10 FNC5
11 FNC6
12
13 HR1
14 HR2
15 GND
2. Horn Alert Function
The Horn alert function (max. 2A drive) is enabled by in-
stalling the KCT-60 in the transceiver.

INSTALLATION

Molex 15-pin Pin No.
SB 1
IGN 2
12
DO 4
DI 5
9
11
7
6
8
10
5C -
13
14
3
NX-720H(G)/720H
2-1. Installation Procedure
1. Remove the ACC. cap on the rear of the transceiver.
2. Connect the D-sub connector of the KCT-60 to the D-sub
15-pin terminal of the transceiver.
3. Insert the two crimp terminals of the Horn alert cable to
pins 13 and 14 of the square plug.
4. Connect the square plug to the 15-pin connector of the
KCT-60.
5. Connect the remaining two Horn alert cables to your car
Horn alert signal control.
The internal FET switch can be controlled by turning
the HA function on/off and by using a signaling decode
output. The maximum current of HA is 2A. This switch is
the FET switch of P-channel type. Therefore, a DC power
supply is necessary to use the HR1. The voltage range is
from 5V to 16V.
(Default)
Note: You must set up using the KPG-141D.
13 10 7 4 1
14 11 8 5 2
15 12 9 6 3
13
Square plug
14
Crimp terminal
Horn alert cable
3. Ignition Sense Cable (KCT-18: Option)
The KCT-18 is an optional cable for enabling the ignition
function. The ignition function lets you turn the transceiver
power on and off with the car ignition key.
3-1. Installing the KCT-18 (Ignition sense cable) in
the transceiver
13 10 7 4 1
14 11 8 5 2
15 12 9 6 3
KCT-60
KCT-18
2
Square plug
Ignition
line of the car
13. HR1
14. HR2
3. GND
KCT-60
7