KDC-5019/519/7021/7021Y/8020/B7021
6
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
Description
Processing Operation
49
CH-RST
O
Reset output to changers
: Reset
50
CH-MUTE
I
Mute request from changers
Hi: Mute request
51
CH-CON
O
Changer control
Lo: Standby mode, Hi: Operation mode
52
ILL-ON
O
Illumination AVR on/off control output
Hi: POWER ON mode except panel detached
53
M-MUTE L
I
Mute request (L Ch.) from CD MECHA. MI-COM. Lo: Mute request
54
M-MUTE R
I
Mute request (R Ch.) from CD MECHA. MI-COM. Lo: Mute request
55
BVDD
-
Positive power supply connection terminal
Connected to BU 5V lines.
56
BVSS
-
Ground connection terminal
Connected to GND lines.
57
M-RST
O
Reset output to CD mechanism MI-COM.
Lo: Reset
58
M-STOP
O
Stop request to CD mechanism MI-COM.
Lo: Stop mode, Hi: Operation mode
59
N.C.
O
Not used(N.C.)
60
LO/EJ
I/O CD mechanism loading/Eject switching output
Lo: Loading, Hi: Eject, Hi-Z: Stop or Break
61
MOSW
O
CD mechanism loading motor control output
Hi: CD loading/eject action or Break, Lo: other
62
N.C.
O
Not used(N.C.)
63
CD-SW3
I
Down & limit switch detection input
Hi: Chucking, Lo: Pickup most inner position
64
DA-SDA/
NC
O
Clock output to D/A converter (V-LED model)
Lo: Panel detached, momentary power down detected
65
LCE
O
CE output to LCD driver IC
66-69 N.C.
O
Not used(N.C.)
70
AV CONT
O
A/D converter reference voltage control output
Hi: Active, Connected to AVREF terminal
71
AVDD
-
A/D converter positive power supply connection terminal Connected to BU 5V lines.
72
AVSS
-
A/D converter ground connection terminal
Connected to GND lines.
73
AVREF
I
A/D converter reference voltage input terminal
74
PHONE
I
PHONE detection input
1V or less: TEL MUTE, 2.5V or greater: NAVI MUTE
75
SRM-SW3
I
Mask mechanism position SW3 input
Panel: (SW1,SW2,SW3)=(Lo,Lo,Hi)
76
SRM-SW1
I
Mask mechanism position SW1 input
Angle: (SW1,SW2,SW3)=(Hi,Hi,Lo)
Eject: (SW1,SW2,SW3)=(Hi,Hi,Hi)
77
SRM-SW2
I
Mask mechanism position SW2 input
Mask : (SW1,SW2,SW3)=(Lo,Lo,Lo)
78
SRM-DET
I
Mask mechanism detection input
Lo: Mechanism detected, Hi: mechanism not detected
79
NOISE
I
FM noise detection input
80
S-METER
I
S-meter input from F/E
81
R-DATA
I
Data input from the RDS decoder IC
Except RDS, RBDS model: Not used(pull down to
GND lines)
82
R-QUAL
I
Quality input from the RDS decoder IC
Except RDS, RBDS model: Not used(pull down to
GND lines)
83
IFC-OUT
I
F/E IFC OUT input terminal
Lo: Station detected, Hi: Not detected
84,85 N.C.
I
Not used(pull down to GND lines)
Standby: (SRM+B,SRM-B)=(Lo,Lo)
86
SRM-B
O
SRM mechanism submotor control output
Clock wise: (SRM+B,SRM-B)=(Hi,Lo)
Counter clock wise: (SRM+B,SRM-B)=(Lo,Hi)
Break: (SRM+B,SRM-B)=(Hi,Hi)
87
R-CLK
I
Clock input from the RDS decoder IC
Except RDS, RBDS model: Not used(pull down to
GND lines)
88
CH-REQC
I
Request input from changers
Lo: Request
89
KEY-REQ
I
Communication request from LCD driver IC
90
CD-SW1
I
Loading SW detection input
Lo: Loading start
91
CD-SW2
I
12cm disc detection SW input
Lo: 12cm disc detected
92
SRM+B
O
SRM mechanism submotor control output
93
BU-DET
I
Momentary power down detection input
Hi : When momentary power down detected or BU OFF
Lo : BU ON
94
CH-DATAC
I
Data input from changers
95
CH-DATAH
O
Data output to changers
96
CH-CLK
I/O Clock input/output with changers
97
L-DATA L
I
Data input from the LCD driver IC
98
L-DATA S
O
Data output to the LCD driver IC
99
L-CLK
I/O
Clock output to the LCD driver IC
/Panel detaching detection input(LCD Driver)
Lo: Panel attached
100
PAN5V
O
Panel 5V control
Hi: Panel attached, Lo: Panel detached
