Kenwood KDC-M4524 Service Manual page 5
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Also See for KDC-M4524:
- Instruction manual (136 pages) ,
- Instruction manual (136 pages) ,
- Service manual (29 pages)
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MICROCOMPUTER'S TERMINAL DESCRIPTION
pin
pin name
45
CD MECHA+B
46
SW5V
47
PS2-0
48
PS2-1
49
PS1-0
50
PS1-1
51
PS1-2
52
BU DET
53
ACC DET
54
-
55
BVDD
56
BVSS
57,58 -
59
P-MUTE
60
P-STBY
61,62 -
63
PRE MUTE
64~67 -
68
LX-RST
TE
L 13942296513
69
LX-CON
70
AVCONT
71
AVDD
72
AVSS
73
AVREF
74
PHONE
74
-
75~81 -
82
S-METER
83
NOISE
84
IFC-OUT
85
LX-MUTE
86
LX-REQM
87
R CLK
87
-
88
LX-REQS
89
KEY-REQ
90
LO.S SW (SW1)
91
12EJE SW (SW2)
92
-
93
-
94
LX-DATAS
www
95
LX-DATAM
96
LX-CLK
97
L DATAL
.
98
L DATAS
99
L-CLK
100 PLL DATA
I/O
Description
I/O
Power supply control terminal for MP3
I/O
Control terminal for switch5V
O
Control terminal for power supply IC
O
Control terminal for power supply IC
O
Control terminal for power supply IC
O
Control terminal for power supply IC
O
Control terminal for power supply IC
I
BU detection terminal
I
ACC detection terminal
O
Not used
-
-
O
Not used
O
POWER IC MUTE output terminal
O
POWER IC STBY output terminal
O
Not used
O
PREOUT MUTE output
O
Not used
O
Reset output to external unit
O
Control output to external unit
O
AD reference voltage control output
-
-
-
I
PHONE detection terminal
I
Not used (with no PHONE destination)
I
Not used
I
S-meter detection terminal
I
FM noise detection terminal
I
F/E IFC OUT input terminal
I
MUTE request to external unit
O
Request output to external unit
I
RDS decoder Clock input terminal
O
Not used
I
Request intput to external unit
I
Request of communication from LCD driver
I
Loading start switch detection terminal
I
12cmDISK EJECT position detection switch terminal
O
Not used
O
Not used
I
Data input from external unit
O
Data output to external unit
x
ao
y
I/O
Clock output and input terminal with external unit
I
Data input from LCD driver
i
O
Data output to LCD driver
I/O
Clock output to LCD driver
I/O
Data output and input terminal with F/E
KDC-M4524/G/Y/GY
8
truth table
w
w
q
q
q
Q Q
3
6 7
1 3
u163
.
2 9
9 4
2 8
Processing Operation
ON : L, OFF : Hi-Z
ON : L, OFF : Hi-Z
BU detection : L, with no BU : H
ACC detection : L, with no ACC : H
POWER OFF : L, ALLOFF : L, TEL MUTE : L
POWER IC ON : H, OFF : L
during momentary power down L,
When M-MUTEL : L
Usually, L after system RST returned,after
more than 400m sec H,and L
1 5
0 5
8
2 9
9 4
ON : H, OFF : L
during motion : H
Connection with 70pin
TEL MUTE : 1V orless, NAVI MUTE : more
than 2.5V
Dependant for control use of tuner
Dependant for control use of tuner
Dependant for control use of tuner
H : MUTE ON, L : MUTE OFF
Request detection : L
Destination with no RDS : output L fixed
Request detection : L
L : KEY input
Loading start : L
12cmDISC : L
m
Holding the last
co
9 9
2 8
9 9
5
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