Truth Table; Mechanism Μ-Com : Ic4 On X32- (Cd Player Unit) - Kenwood KDC-MP4028 Service Manual
Cd receiver
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Also See for KDC-MP4028:
- Instruction manual (45 pages) ,
- Service manual (6 pages) ,
- Instruction manual (40 pages)
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MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No.
Pin Name
I/O
82
MUTE PRE R
O
83
MUTE PRE L
O
84
MUTE 0
I/O
85
MUTE 1
I/O
86
MUTE 2
I/O
87
LINE MUTE
I
88
NC
-
89
PWIC DC DET
I
90
LX RST
O
91
MUTE C
I/O
92
NC
-
93
RDS NOISE
I
94
AVSS
-
95
TUN SMETER
I
96
VREF
-
97
AVCC
-
98
LX DATA S
I
99
LX DATA M
I/O
100
LX CLK
I/O
TRUTH TABLE
CD MECHA CONTROL OPERATION
CD MECHA OPERATION
Stop
Load
Eject
Brake
MECHANISM µ-COM : IC4 on X32- (CD PLAYER UNIT)
Pin No.
Pin Name
I/O
1
NC
O
2
E2P_SCL
I/O
3~5
NC
O
6
VDD
-
7
GND
-
Application
Rch preout mute
Lch preout mute
E-VOL front mute
E-VOL rear mute
Mute except E-VOL front/rear
Line mute detection
DC offset detection
Hard reset to slave unit
E-VOL mute
FM noise detection
S-meter input
Data from slave unit
Data from slave unit
LX-BUS clock
CD MOTOR
CD LOEJ
L
L
H
L
H
H
H
Hi-z
Application
Not used.
Rom correction E2P I2C clock
Not used.
5V electric potential
GND electric potential
KDC-MP4028/MP428/MP6029
Processing Operation
Becomes "H" when "CD MUTE R" is "L" or momentary power
down happens.
Becomes "H" when "CD MUTE L" is "L" or momentary power
down happens.
L : MUTE ON, Hi-Z : MUTE OFF
L : MUTE ON, Hi-Z : MUTE OFF
L : MUTE ON, Hi-Z : MUTE OFF
TEL MUTE : Below 1V, NAVI MUTE : Below 1V or over 2.5V
H : Reset, L : Other condition
L : MUTE ON, Hi-Z : MUTE OFF
Processing Operation
Description
Low-fixed
Low-fixed
Remarks
7
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