Microcomputer's Terminal Description - Kenwood KDC-X615 Service Manual

KDC-X615,6015
KDC-6080R/RY/RV,7016

MICROCOMPUTER'S TERMINAL DESCRIPTION

Terminal description
PinNo. Pin name
1 ST TYPE1
2 ST TYPE2
3 JS TYPE1
4 TYPE1
5 TYPE2
6 TYPE3
7 NC
8 NC
9 VDD
10 NC
11 NC
12 NC
13 RDS DATA
14 RDS QUAL
15 AFC
16 FM/AM SD
17 IF COUNT
18 NC
19 REMO
20 AM+B
21 FM+B
22 TEST
23 IC2 SDA
24 IC2 SCK
25 MUTE
26 SW5V
27 F/E DATA
28 F/E CLK
29 CH CON
30 CH REQH
31 CD MUTE
32 CD MRST
33 CD MSTOP
34 CD LO/EJ
35 CD LMON
36 CD SW3
37 VDD
38 X2
39 X1
40 VSS
41 XT2
42 XT1
43 RESET
44 NC
45 RDS CLK
46 CH REQC
47 LCD DATAL
48 CD SW2
49 CD SW1
50 NC
51 AVDD
6
I/O Description
I IC2 setting terminal
I IC2 setting terminal
I Genuine/After market distinction terminal
I Destination type input terminal 1
I Destination type input terminal 2
I Destination type input terminal 3
O Not used
O Not used
- Power supply connection terminal
O Not used
O Not used
O Not used
I Data input from the RDS decoder IC
I Quality input from the RDS decoder IC
O AFC control output
I SD input from the tuner pack
I Not used
O Not used
I Data input from the remote control light sensor
O AM+B control
O FM+B control
- IC test terminal(Not used)
I/O Data input/output with the E-VOL. IC
O Clock output to the E-VOL. IC
O Mute control output
O SW 5V control output
I/O Data input/output with the front end
O Clock output to the front end
O Changer control
O Request output to changers
I Muting request from the MI-COM. of CD mecha. "Lo": Mute request
O Reset output to the MI-COM. of CD mecha.
O Stop request to the MI-COM. of CD mecha. "Lo": Stop
I/O CD mecha. loading/Eject switching output
O CD mechanism loading motor control output
I Down & limit switch detection input
- Power supply connection terminal
- Main clock resonator connection terminal
- Main clock resonator connection terminal
- Ground connection terminal
- Sub clock resonator connection terminal
- Sub clock resonator connection terminal
I Reset input terminal
O Not used
I Clock input from the RDS decoder IC
I Request input from changers
I Data input from the LCD driver IC
I 12cm disc detection terminal
I Loading detection
O Not used
- A/D converter power supply connection terminal Connected to BU 5V lines.
Processing Operation
"Lo": Initial value
"Lo": Initial value
"Hi": Genuine, "Lo": After market
Connected to BU 5V lines.
"Hi": During FM reception, "Lo": During FM seek.
"Hi": Station detected, "Lo": Not detected
"Hi": During AM reception.
"Hi": During FM reception.
Connected to GND
"Hi": Mute ON, "Lo": Mute OFF
"Lo": POWER ON mode or during CD loading or eject action.
"Hi": ON, "Lo": Standby
"Lo": Request
"Lo": Reset
"Lo": Loading, "Hi": Eject, "Hi-Z": Stop
"Hi": CD loading or eject action, "Lo": other
"Hi": Chucking, "Lo": Pickup most inner position
Connected to BU 5V lines.
Connected to GND.
"Lo": System reset
"Lo": Request
When 12cm disc was detected, the input becomes "Lo" temporarily.
"Lo": CD chucking.