Kenwood KDC-5021 Service Manual page 2

QQ
3 7 6 3 1 5 1 5 0
PLL+B
F/E
Q1,2
FM+B
Q3,4
AM+B
AUDIO OUT
Q6
BUFF
SW 5V
S-METER
3
IFC OUT
PLL DATA
PLL CLK
CD MECHA
SERVO+B SW 5V
(NORMAL)
A 8V
IC7
B.U.5V
RDS
DECODER
2
SDA
SCL
SW1
SW2
SW3
8
MUTE L
M RST
M STOP
LO/EJ
MOSW
T E
L 1 3 9 4 2 2 9 6 5 1 3
CH
RST
REQ C
7
CLK
DATA H
CH-CON
REQ H
DATA C
BACK UP
X16-164
FLIP RST SW
G/R SW
DET
IC2
IC1
REMO
KEY
LCD
MATRIX
DRIVER
PANEL 5V
Q6
www
REMO ON
PANEL 5V Q7
DIMMER
LCD
PWM CONTROL
ED1
BACKLIGHT
LCD (NEGA) W-LED
5x7 TYPE
.
A 8V
470mV (K,M)
251mV (E) IC2
FM
230mV
AM
E-VOL
1200mV & N.C. MPX
CD
1200mV
CH-AUX
MP IN
LEVEL
2
B.U.5V
IC1
3
RDCK
RDDA
RQUAL
2
3
8
SYSTEM
7
u-COM
REMO
DIMMER
IC8
RESET
RST IC
MUTE
DRIVER
B.U.5V
Q906 S1
GUIDE OPEN
B.U.5V
ILL SW
Q3,4
X16-163
FLIP RST SW
G/R SW
X16-167
DET
IC1
KEY
LCD
MATRIX
DRIVER
Q2
REMO ON
PANEL 5V
x a o u 1 6 3
ED1
LCD
y
LCD NEGA BACKLIGHT
POSI W-ILL
14SEG TYPE
i
8
2
FRONT L/R
2
REAR L/R
IC5
SWITCHED
OP-AMP
S-MUTE
QUAL
AFS
Q402
THERMAL
NOISE
PROTECTION
BUFFER
AFS
NOISE
N/F SW
PRE MUTE
N/F MUTE
MUTE
P MUTE
BEEP
DIMMER
Q Q
3 7 6 3 1
Q502
ACC DET.
Q703
SW 5V
SW 5V
PANEL 5V
P-ON
X89-251
X89-252
IC2
B.U.5V
REMO
EJECT KEY
EJECT ILL/DSI
(SW AND LED)
PANEL 5V
.
2 4
9 9 8
PRE OUT OUTPUT VOLTAGE
1.8V PRE
MODE
(K,M) TYPE
CD (NORMAL) 3600mV
FM 1800mV
AM 600mV
CHANGER 3600mV
Q201-204
2
2
MUTE
Q205,206
2
2
MUTE
IC3,
Q403,404
MUTE
B.U.5V
DRIVER
IC4
SW 5V
POWER IC
8
5 1 5 0 8 9 2 4
2WAY MUTE
Q701,702
Q503,504
B.U.5V
Q905
ANT-CON
PANEL
5V Q505-508
P-CON
MUTE
DRIVER
Q501
B.U. DET.
SW 14
Q708
SERVO
+B
Q706,707
A 8V
Q901-903
m
ILLUMI
+B
c o
KDC-5021/5021V/506
KDC-5020R/5021Y/YV
KDC-319/4019/5020
KDC-419/X459
2
9 9
(E) TYPE
3600mV
1372mV
855mV
3600mV
PRE-OUT (FRONT)
PRE-OUT (REAR)
PRE-OUT (NF/REAR)
SP-OUT
DIMMER
9 8 2 9 9
TEL-MUTE
ACC
ANT-CON
P-CON
BACK UP