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2
KDC-MP2028/MP228/MP3029
KDC-MP4029/MP4029G
BLOCK DIAGRAM
MECHA
CD or MD
CHANGER
J2
E-VOL
IC10
&
AM AGC
Q501
FM AGC
L506
J4
TUNER
IC11
E2PROM
SYSTEM u-COM
IC1
IC7
RDS
DECODER
RST IC
IC8
PRE MUTE
Q351,352
IC4
POWER IC
MUTE LOGIC
IC6
SURGE DET
BU DET
ACC DET
Q51
Q52
Q53
J1
PAN5V
Q151
Q72,73
SERVO
VFD REG
IC15
POWER SUPPLY IC
IC3
ED1
VFD
with
VFD DRIVER
IC1
REMOTE
IC3
VOL
S11
KEY MATRIX
DSI
Q155
.......
.......
J6
SERVO
A8V
BU5V
AUDIO OUT
AM+B
ANT
MPX OUT
MPX IN
800mV
1200mV
AUDIO OUT
BU5V
A8V
BACK-UP
SP OUT
BACK-UP
ACC
TEL MUTE
P-ANT
P-CON
PAN5
SERVO
P-ANT
SW5V
AM+B
A8V
BU5V
P-CON
SW5V
AM+B
AUDIO+B
VCC
ILLUMI
BU5V
ILLUMI
PAN5V
BU5V
PRE OUT
KEY
:
CHANGER
CD/MD RECEIVER
FM (E Type)
FM (J/K Type)
AM (J/K Type)
AM (E Type)
:
:
:
:
: 1800mV
1372mV
600mV
855mV
3600mV
3600mV
ELECTRIC UNIT (X34-)
SWITCH UNIT (X16-)
S7V
A8V
BU5V
D5V
A3.3V
SW3.3V
BU3.3V
B
U2.5V
CD PLAYER UNIT (X32-5500-00)
IC1
MECHANISM
CONTROL
Q8
APC
Q9,10
SW
IC4
4ch BTL
DRIVER
M
M
DM1
DM2
SPINDLE
MOTOR
LOADING
MOTOR
& SLED
S1
S2
IC9
DAC 3.3V
AVR
Q3,5,6
S3
LEVEL SHIFT
Q7
Q1,4
LEVEL
SHIFT
MICROPROCESSOR
AVR
BU 3.3V
IC6
DAC 3.3V
AVR
IC7
SW 3.3V
AVR
IC5
LEVEL
SHIFT
IC3
MP3/WMA
DECODER
IC2
PROCESSOR
RF AMP/SERVO
CD SIGNAL
BUFFER
IC8
FO COIL
TR COIL
(OPTICAL PICKUP)
A
C
F
B
E
DPU1
LD
PD
CN2
CN1
15
14
13
12
DGND
DATA
CLK
MUTER
MUTEL
MSTOP
MRST
10
LOS
20
19
18
17
16
1
A8V
L
AGND
DOUT
R
MOTOR
LO/EJ
5
4
3
2
9
8
7
6
SGND
S7V
12EJE
LOE/LIM
X2
16.00MHz
16.898MHz
X1
OPEN
D5
DGND
D5
24
23
22
21
BU5
3
3
8
1
2
4
4
4
4
VREF
SLD
TRK
FCS
SPD
5
16
PON