Kenwood KDC-MP425 Service Manual page 6
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Also See for KDC-MP425:
- Instruction manual (116 pages) ,
- Service manual (34 pages) ,
- Instruction manual (45 pages)
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KDC-MP425/MP6026
KDC-W6027/W6027Y
QQ
MICROCOMPUTER'S TERMINAL DESCRIPTION
3 7 63 1515 0
Pin No.
Pin Name
R DATA
12
Not used
13
L CE
14
Not used
15
Not used
16
DSI
17
DIM CON
18
TEST
19
ILL CON
20
VOL A
21
VOL B
22
MOSW
23
LO/EJ
24
M STOP
25
M RST
TE
26
MUTE
L 13942296513
27
LOE/LIM SW
28
M-MUTE L
29
M-MUTE R
30
PANEL 5V
31
RESET
32
XT1
33
XT2
34
REGC
35
X2
36
X1
37
VSS
38
VDD
39
CLKOUT
40
IC2 TYPE1
41
IC2 TYPE0
42~44
TYPE2~TYPE0
45
CD MECHA+B I/O
46
SW5V
www
47,48
PS2-0, PS2-1
49~51
PS1-0~PS1-2
.
52
B.U-DET
53
ACC-DET
6
I/O
Application
I
RDS decoder DATA input terminal
O
Destination other than E and E2
O
CE output terminal for LCD driver
O
Non variable illumination switch destination
O
Non variable illumination switch destination
EJECT KEY ILL, GUIDE ILL,
I/O
DSI control terminal
O
Dimmer control terminal
-
O
During FLIP DET ILL+B OFF
I
Volume key input
I
Volume key input
O
CD mechanism MOTOR IC SW
I/O
CD mechanism LOADING, EJECT switching
O
STOP request to CD mechanism
O
Reset output terminal to CD mechanism
I/O
MUTE terminal
I
CD DOWN SW DET terminal
I
MUTE request terminal from CD mechanism
I
MUTE request terminal from CD mechanism
I/O
Panel 5V control terminal
I
I
I
-
I
I
-
-
-
I
E-VOL setting switching terminal
I
E-VOL setting switching terminal
I
Destination switching terminal
Power supply control terminal for MP3
I/O
Control terminal for SW5V
O
Control terminal for power supply IC
x
ao
y
O
Control terminal for power supply IC
i
I
Momentary power down DET terminal
I
ACC DET terminal
8
Truth
value table
FLIP-DET "H" and PANEL-DET is "L" : "H" / "L"
FLIP-DET "H" and PANEL-DET is "H" : "L"
50ms interval : "H" / "L"
During FLIP DET "L" : H
When looking at VOL, also look at FLIPDET
When looking at VOL, also look at FLIPDET
Loading, Eject, Brake : H
STOP, Brake : Hi-Z, Loading : L, Eject : H
Normal : H, Reset : L
Q Q
Hi-Z : Mute ON, L : Mute OFF
3
6 7
1 3
H : Chucking
L : Mute request
L : Mute request
Panel DET : L, Detached, Momentary power down : H
Normal : H, Reset : L
32kHz
32kHz
Connect 1µF condenser to GND
20MHz
20MHz
e
ON : L, OFF : Hi-Z
ON : L, OFF : Hi-Z
w
u163
q
.
BU DET : L, BU no DET (momentary power down) : H
ACC DET : L, ACC no DET : H
2 9
9 4
2 8
Processing Operation Description
1 5
0 5
8
2 9
9 4
m
co
9 9
2 8
9 9
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