Block Diagram - Kenwood KDC-3028 Service Manual

Cd receiver
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KDC-3028/328
QQ
3 7 63 1515 0
J4
ANT
AM+B
Q501
AM AGC
SERVO
CD or MD
A8V
MECHA
BU5V
AUDIO OUT
CD5V
J2
CHANGER
AUDIO OUT
S152
BACK
EJECT
KEY
SWITCH UNIT (X16-)
ED1
VFD
S1
TE
.......
L 13942296513
VOL
MECHA ASSY (X92-)
PICK-UP (DPU1)
A
E
C
B
TR COIL
FO COIL
DM1
SPINDLE MOTOR
DM2
LOADING & SLED
www
MOTOR
.
2

BLOCK DIAGRAM

ELECTRIC UNIT (X34-)
L506
FM AGC
IC10
MPX OUT
MPX IN
E-VOL
&
800mV
TUNER
1200mV
IC11
IC8
E2PROM
RST IC
IC7
IC1
RDS
DECODER
BU5V
Q156
EJECT
ILLUMI
PAN5V
IC1
REMOTE
VFD DRIVER
with
KEY MATRIX
.......
D. GND
D. GND
IC1
7
Q1
F
RF AMP
APC
IC3
Q5,6,D3
2
CURR.
VREF
AMP
2
MUTE
2
MOTOR
DRIVER
LOADING
H
2
L
SLED
S. GND
x
ao
y
i
8
Q351,352
PRE MUTE
IC6
MUTE LOGIC
A8V
Q51
BU5V
SURGE DET
Q52
BU DET
Q53
ACC DET
u-COM
OEM
Q151
PAN5
PAN5V
Q72,73
S151
IC2
SERVO
SERVO
PANEL DET
Q152
Q Q
3
6 7
ILLUMI SW
CD PLAYER UNIT (X32-5750-00)
X1
CLOCK
16.934MHz
IC2
12
SERVO
VREF
PROCESSOR
u-COM
REF
A+5V
A. GND
DRV MUTE
4
D. GND
VREF
u163
SW +5V
2 9
9 4
FM (J/K)
: 1800mV
FM (E)
:
1372mV
IC4
AM (J/K)
:
600mV
AM (E)
:
855mV
POWER IC
IC3
POWER SUPPLY IC
P-CON
P-ANT
AM+B
AM+B
IC15
A8V
AUDIO+B
VFD REG
VCC
BU5V
BU5V
1 3
1 5
0 5
8
2 9
ILLUMI
MOTHER
BOARD (X34-)
DOUT
CLK
4
DATA
MSTOP
MRST
2
MUTE L
IC4
MUTE R
L-ch
LPF
R-ch
D2
Q4
5V REG
8V SW
A8V
Q3
A. GND
SW
BU5V
Q2
5V SW
D. GND
m
S3
LOE/LIM SW
co
S2
12EJE SW
.
S1
D. GND
LOS SW
S7.5V
S. GND
MOTOR
LO/EJ
2 8
9 9
J6
PRE OUT
CD/MD
:
3600mV
CHANGER
:
3600mV
J1
SP OUT
BACK UP
ACC
OEM REMOTE
TEL MUTE
P-ANT
P-CON
9 4
2 8
9 9
22
19
18
10
11
12
13
8
6
9
7
15
14
1
21
20
3
2
4
5

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Kdc-328

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