Kenwood kdc-5090r/ry Service Manual page 6

KDC-5090R/RY
QQ
MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
Pin No. Pin Name
39 CLKOUT
40 NC
41 NC
42 TYPE0
43 TYPE1
44 TYPE2
45 TYPE3
46 IC2TYPE0
47 IC2TYPE1
48 NC
49 NC
50 NC
51 NC
52 ILL-ON
53 M-MUTE L
54 M-MUTE R
55 BVDD
56 BVSS
TE
L 13942296513
57 M-RST
58 M-STOP
59 NC
60 LO/EJ
61 MOSW
62 NC
63 CD-SW3
64 NC
65 L-CE
66 NC
67 NC
68 NC
69 NC
70 AVCONT
71 AVDD
72 AVSS
73 AVREF
74 PHONE
75 NC(GND)
76 NC(GND)
www
77 SRT-SW2
.
78 SRT-SW1
79 NOISE
80 S-METER
81 R-DATA
6
I/O Description
O Internal system clock output
O
O
I Destination type input terminal 0
I Destination type input terminal 1
I Destination type input terminal 2
I Destination type input terminal 3
I IC2 setting terminal
I IC2 setting terminal
O
O
O
O
O Illumination AVR on/off control output
I Mute request (Lch) from CD MECHA. MI-COM. "Lo": Mute request
I Mute request (Rch) from CD MECHA. MI-COM. "Lo": Mute request
- Power supply connection terminal
- Ground connection terminal
O Reset output to CD MECHA. MI-COM.
O Stop request to CD MECHA. MI-COM.
O
I/O CD MECHA. loading/Eject switching output "Lo": Loading, "Hi": Eject, "Hi-Z": Stop or Break
O CD mechanism loading motor control output "Hi": CD loading/ eject action or Break, "Lo": other
O
I Down & limit switch detection input
O
I/O CE output to LCD driver
O
O
O
O
O A/D converter reference voltage control output
- A/D converter power supply connection terminal Connected to BU 5V lines.
- A/D, D/A converter ground connection terminal Connected to GND lines.
I A/D converter reference voltage input terminal
I PHONE detection input
I
I
x ao u163
I SRT position detection input
y
i
I SRT position detection input
I FM noise detection input
I S-meter input from F/E
I Data input from the RDS decoder IC
2 9
8
Not used (N.C.)
Not used (N.C.)
Not used (N.C.)
"Lo": Initial value
"Lo": Initial value
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
"Hi": POWER ON mode except panel detached
or panel mask position
Connected to BU 5V lines.
Q Q
Connected to GND lines.
3 6 7 1 3 1 5
"Lo": Reset
"Lo": Stop mode, "Hi": Operation mode
Not used(N.C.)
Not used(N.C.)
"Hi": Chucking, "Lo": Pickup most inner position
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
Not used(N.C.)
"Hi": Active, Connected to AVREF terminal.
1V or less: TEL MUTE, 2.5V or greater: NAVI MUTE
Not used(pull down to GND lines)
Not used(pull down to GND lines)
Panel: (SW1, SW2)=(Hi, Hi)
co
Slide: (SW1, SW2)=(Hi, Lo)
.
Mask : (SW1, SW2)=(Lo, Lo)
Except RDS model: Not used (pull down to GND lines)
9 4 2 8
Processing Operation
0 5 8 2 9 9 4 2 8
m
9 9
9 9