Kenwood KCH-20R Service Manual page 11

2.4 TERMINAL FUNCTION
2.4.1 Sub unit (XC3-0100-20)
Pin No. Name I/O
1 SB I Switched power supply
2 SB I Switched power supply
3 SB I Switched power supply
4 SB I Switched power supply
5 NC - No connection
6 GND - Ground
7 GND - Ground
8 GND - Ground
9 AFo+ O AF signal output plus
10 ACC_ME - AUX MIC ground
11 AFo- O AF signal output minus
12 ACC_MIC I AUX MIC signal input
13 AFiA+ I AF signal input plus_A
14 MICA+ O MIC signal output plus_A
15 AFiA- I AF signal input minus_A
16 MICA- O MIC signal output minus_A
17 AFiB+ I AF signal input plus_B
18 MICB+ O MIC signal output plus_B
19 AFiB- I AF signal input minus_B
20 MICB- O MIC signal output minus_B
21 /PRST I Reset signal
22 /PSW O Detection signal output of power switch
23 AUXI0 I AUX input_0
24 AUXI1 I AUX input_1
25 AUXO0 O AUX output_0
26 AUXO1 O AUX output_1
27 H_1/2 I Head Number setting terminal
28 /AMP_PD I Power-Down signal of the Audio Amplifi-
er
29 GND - Ground
30 GND - Ground
31 CAN+ I/O CAN data plus
32 CAN- I/O CAN data minus
33 GND - Ground
34 GND - Ground
35 53DC I 5.4V input
36 53DC I 5.4V input
1 VSSA - Ground
2 VSSA - Ground
3 VSSA - Ground
4 VCC O 3V output
5 VCC O 3V output
6 VSSD - Ground
Function
CN1
CN57
Pin No. Name I/O
7 VSSD - Ground
8 VSSD - Ground
9 IOVCC O 1.8V output
10 IOVCC O 1.8V output
11 RDX O LCD driver RD signal
12 WRX O LCD driver WR signal
13 DCX O LCD driver data/command switch signal
14 CSX O LCD driver chip select signal
15 DB1 I/O LCD driver data output
16 DB2 I/O LCD driver data output
17 DB3 I/O LCD driver data output
18 DB4 I/O LCD driver data output
19 DB5 I/O LCD driver data output
20 DB6 I/O LCD driver data output
21 DB7 I/O LCD driver data output
22 DB8 I/O LCD driver data output
23 DB10 I/O LCD driver data output
24 DB11 I/O LCD driver data output
25 DB12 I/O LCD driver data output
26 DB13 I/O LCD driver data output
27 DB14 I/O LCD driver data output
28 DB15 I/O LCD driver data output
29 DB16 I/O LCD driver data output
30 DB17 I/O LCD driver data output
31 CABC - No connection
32 RESX O LCD driver reset signal
33 IM0 O Interface mode select
34 LEDA O 54M output (LED light anode)
35 LED1 I LED light cathode 1
36 LED2 I LED light cathode 2
37 LED3 I LED light cathode 3
38 LED4 I LED light cathode 4
1 ENC3 I Rotary Switch Input
2 ENC2 I Rotary Switch Input
3 ENC0 I Rotary Switch Input
4 ENC1 I Rotary Switch Input
5 GND - Ground
6 GND - Ground
7 50D O 5.0V output
8 VOLDET I Volume Level Input
J1 (microSD)
1 DAT2 I/O Data 2
2 CD/DAT3 I/O Data 3
3 CMD I/O Command input/output
4 VDD O 3.3V output
Function
CN60
(No.RA027<Rev.001>)1-11