Kenwood KDC-8021 - Page 2

ILL
TEL MUTE
ACC
ANT CON
P CON
BACK UP
EXT AMP CONT
PLL+B
BUFFER
DECODER
RDS
E-VOL
MPX
N.C.
IF+B
SYSTEM u-COM
RESET
SW
A8V SW14V
EXT AMP CONT
DIMMER
ACC DET
TEL MUTE
P CON
B.U DET
ANT CON
SW5V B.U. 5V
PAN5V
MASK
MECHA
POWER IC
THERMO
PROTECT
IC4
MUTE
PRE AMP
4.5V
IC11-13
SP OUT
PRE OUT
RESET
AM+B
FM+B
NOISE
BUFFER
SPEANA
AGC OP AMP
SYSTEM
E'S+
MUTE DRIVER
IC9
4.5V
SERVO
AVR
DC/DC
4.5V PRE
IC15
DRIVER
MASK
REMO
O-CE
O-CLK
O-DATA
STEERING REMOTE
EXTERNAL DISPLAY
DC/DC
REG
CD4.7V
DC/DC
IC7
MATRIX
KEY
REMO
FL3.3V SW
VFD (GRADATED)
SPEANA
BPF
G/R SW
PANEL
u-COM
FL+B SW
VFD (GRADATED)
MATRIX
KEY
RESET
SW
FL3.3V SW
REMO
ROM
FL+B SW
PANEL
u-COM
SPEANA
BPF
G/R SW
IC10
IC14
IC2
CONTROL
1.8V
PRE OUT
PRE OUT OUTPUT VOLTAGE
IC1
IC5
IC8
251mV (E) TYPE
470mV (K) TYPE
FM:
AM:
230mV
F/E
CD
CH
(X16-160)FL (2 COLOR) TYPE
(X16-161)
FL (GRADATED) TYPE (X16-158)
(X16-159)
AUDIO
S-METER
IFC OUT
PLL DATA
PLL CLK
SW5V
FM
AM
CD
CHANGER
S METER
QUAL
SDA SCK
S MUTE
A 8V
MASK SW1
RCLK
QUAL
RDATA
NOISE
S METER
AFS
IFC OUT
PLL DATA
PLL CLK
SW1
M RST
LO/EJ
MO SW
MUTE R
MUTE L
M STOP
SW3
DATA C
CH RST
CH MUTE
SW2
DATA H
CH CON
CH CLK
REQ H
REQ C
MASK DET RESET
AM+B
FM+B
SCK
SDA
PRE MUTE
MUTE
BEEP
P MUTE
ACC DET
PHONE
DIMMER
EXT AMP CONT
P CON
PAN5V
P ON
ANT CONT
B.U. DET
SW5V
SW5V
CH MUTE
CH RST
DATA H
DATA C
CH CON
REQ C
CH CLK
REQ H
BACK UP
1200mV
CD4.7V
SERVO +B
A8V
PAN5V
B.U. 5VSW5V
MUTE AC GND
BACK UP
SW5V
B.U.5V
+B
FM
4500mVCD
AM 750mV
2250mV
1069mV
1715mV
(K) TYPE (E) TYPE
4500mV
B.U. 5V
SW5V
SCK SDA
B.U. 5V
-B
SERVO+B
+B
-B
MASK SW2 MASK SW3 O-CE REMO O-DATA O-CLK MASK + MASK - CD-MECHA+B ILL ON
CD4.7V
PANEL 5V
PANEL 5V
VDD1 VDD2
FAC
PANEL 5V
PANEL 5V
VDD1 VDD2
FAC
AFS
MS CLK
MS DATA
M STOP
M RST
MUTE L
MUTE R
MO SW
LO/EJ
SW1
SW2
SW3
A8V
B.U. 5V
(MP3. WMA)
CH
3600mV
1372mV
855mV
(E) TYPE
4.5V PRE 1.8V PRE
MODE
4500mV 4500mV 3600mV
1200mV
KDC-8021/M9021/X859
2
BLOCK DIAGRAM