Kenwood KDC-MP225 Service Manual page 7

MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name I/O
40 PS2 0
41 PS1 0
42 PS1 1
43 PS1 2
44 PON 5 O
45 NC
46 PON CD
47 CD DISC12 SW
48 CD MUTE R
49 NC
50 CE MRST O
51 CD DISC8 SW
52 CD LOS SW
53 CD MUTE L
54 NC
55 CD MSTOP O
56 CD LOE LIM SW
57 CD LOEJ I/O
58 CD MOTOR
59 DSI
60 RESET
61 NC
62 KEY REQ
63 RDS CLK
64 LX REQ S
65 REMO
66 NC
67 VSS0
68 VDD1
69 X2
70 X1
71 TEST
72 XT2
73 XT1
74 VDD0
75 AVDD
76~78 TYPE0~2
79,80 TUN TYPE0,1
O Power supply IC control terminal
O Power supply IC control terminal
O Power supply IC control terminal
O Power supply IC control terminal
SW5V/SW14V control output terminal
- NC
O MP3 power supply control terminal
I 12cm CD disc eject SW detection input terminal
I Request for muting signal from CD mechanism
- NC
Reset signal output to CD mechanism
I 8cm CD disc eject SW detection input terminal (Not used)
I Loading start SW detection input terminal
I Request for muting signal from CD mechanism
- NC
Request signal (Mechanism is STOP) output to CD mechanism
I Down SW detection from CD mechanism
CD mechanism loading / eject control terminal
O CD mechanism motor loading control terminal
O Disc guide illumination control terminal
I Reset input terminal L : Active
- NC
I Request for communication to slave unit
I RDS decoder CLK input terminal
I DATA signal input from EXT. unit
I Remote control signal input terminal
- NC
- GND
- BU5.0V
- Main clock input terminal (10MHz)
- Main clock input terminal (10MHz)
- GND
- Sub clock input terminal (32.768kHz)
- Sub clock input terminal (32.768kHz)
- BU5.0V
- BU5.0V
I Destination input terminal
I Electric volume condition setting terminal
KDC-MP225,MP4026/G
KDC-W4527/G/GY/Y,W427Y
Description / Processing Operation
Hi-Z : OFF, L : ON
L : 12cm disc
L : Mute request
L : Active
L : Loading start
L : Mute request
H : Eject, L : Loading
H : Loading, Eject, Brake, L : Play
H : DSI ON
L : Key input mode
DXM6540 (SEL0 : Lo, SEL1 : Lo)
L : Active
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