Optional Accessories Krk-11 (Handheld Control Head Interface Kit) - Kenwood KCH-16 Service Manual

KCH-16
OPTIONAL ACCESSORIES: KRK-11 (Handheld Control Head Interface Kit)
External View
Components Description
Interface unit (X46-3240-20)
Ref. No. Part name
D5 Diode
Control unit (X53-4350-20)
Ref. No. Part name
Q1~3 Transistor
D1~5 Varistor
D6 Varistor
D7 Varistor
D9 Zener diode
64
Description
Reverse protection
Description
Detection switch
Surge absorption
Current protector
Surge absorption
Surge absorption
Terminal Function
Interface unit (X46-3240-20)
Pin No. Name I/O
CN1 (Remote cable connector)
1 ME - MIC GND
2 MIC I MIC signal input
3 E - GND
4 RESET O Reset signal output
5 1/2 O Remote head 1 signal output
6 TRD I/O Bidirection serial data
7 PS I Power switch signal input
8 IGN I Ignition sense input
9 SB O Switched Battery
10 RS1 O Audio Amp output signal (Non-invert)
11 RS2 O Audio Amp output signal (Invert)
CN4 (to Control unit W700 of the
TK-5710/5710H/5810/5810H transceiver)
1 ME - MIC GND
2 MIC O MIC signal output
3 E - GND
4 RESET I Reset signal input
5 1/2 - Not used
6 TRD I/O Bidirection serial data
7 PS O Power switch signal output
8 IGN O Ignition sense output
9 SB I Switched Battery
10 RS1 I Audio Amp input signal (Non-invert)
11 RS2 I Audio Amp input signal (Invert)
Control unit (X53-4350-20)
Pin No. Name I/O
CN1 (Remote cable connector)
1 ME - MIC GND
2 MIC O MIC signal output
3 E - GND
Reset signal input
4 RESET I
VIH: 4.16~5.1V, VIL: –0.3~0.96V
5 1/2 I Head 1 or 2 signal input. OPEN
Bidirection serial data
VIH: 4.16~5.10V / VIL: –0.3~0.96V
6 TRD I/O
VOH: 4.80~5.20V / VOL: <0.3V
Baud rate: 115200bps Max
Power switch signal output
7 PS O SW OFF: 13.0V (typ)
SW ON: 0V (typ)
Ignition sense output
8 IGN O
Active High. VOH: 13.4V (typ)
Switched Battery
9 SB I Voltage: 11.39~15.64V
Current: 750mA max
Function
Function