KRC-29Y/35R,379R/RY,479R/RY,481R
2
BLOCK DIAGRAM
F/E
FM ANT
AM ANT
RF GND
FM+B
AM+B
AM LO/DX
FM LO/DX
IF SELECT
RDS OUT
FM SD OUT
REQUEST
K2I-VTH
VCO-GND
FSD OUT
FM DET
OUT
AM DET
OUT
IF GND
B
P-ON 5V
DIG GND
PLL
DA
T
A
PLL
CLK
PLL
CE
HI UP
ADJ
FM+B
AM+B
A8V
SW5V
(X13)
(X14)
M
M
KRC-479R/R
Y
KRC-29Y35R,379R/R
Y
,481R
SW5V
B.U.
LO/DX
SD
S METER
PLL-DA
T
A
PLL-CE
SUB+
SUB-
SW5V
ACC DET
B.U DET
SCL
MUTE
SDA
EN1
EN2
EN3
PANEL
RESET
L RES
L CLK
L D
ATA S
L D
ATA L
DSI
FWD/REV
T MODE
MOTOR
CH MUTE
NOISE
DATA
H
Rch
COM
Lch
Lch
Rch
MP
IN
AFS
QUAL
AM
MPX
OUT
RR
OUT
RL
OUT
FR
CD-GND
LEVEL
SCL
SW5V
SDA
SCL
SDA
OUT
FL
S-GND
Rch
Rch
STBY
MUTE
EN2
EN3
ILLUMI
EN1
AUDIO
VCC
B.U.5V
AM+B
FM+B
P-CON
FM+B
AM+B
A8V
B.U.5V
Rch
Lch
P
ACK
T
-END
STBY
MODE
FWD
REV
B.U.5V
A8V
B.U.
SMUTE
B.U.14V
B.U.
A8V
8
5
10
IN
PLA
Y
HEAD
B.U.5V
AFS
R QUAL
PACK IN
M-STBY
T END
L CE
B.U.5V
REMO
SW5V
GREEN
RED
B.U.5V
PHONE
BEEP
SVR
P-MUTE
P-STBY
SVR
AC GND(BEEP)
Lch
Lch
Rch
Lch
1200mV
AM : 160mV
FM : 213mV
T
APE :1786mV
CD/MD-CH :3546mV
AM :850mV
FM :1345mV
T
APE :1912mV
CD/MD-CH :3795mV
AM :910mV
FM :1440mV
PLL-CLK
SW 5V
MUSIC
MSCONT
EQ MUTE
MUSIC
MSCONT
MUTE
A8V
IC6
RDS
DECODER
SW 5V
SYSTEM u-COM
KEY
P
AN 5V
MUTE
THERMO
PROTECTION
EEPROM
B.U. DET
SURGE DET
B.U.
ACC
P-CONT
MUTE
PRE
POWER IC
DRIVER
IC10
EQ AMP
E-VOL
CD/MD
CHANGER
FRONT
Lch
FRONT
Rch
REAR Lch
REAR Rch
FRONT
Lch
FRONT
Rch
REAR Lch
REAR Rch
J2
REGULA
T
O
R
IC7
LCD DRIVER
LCD
T
APE MECHA
MAIN
SUB
IC9
PRE OUT
IC2
IC4
IC8
IC12
SP
OUT
SUB MOT
AV
R
MOT
OR
J4
DSI
REMO
RST
SW
P
AN IN SW
GREEN
RED or
RST
IC
IC1
1
ACC DET
TEL
DET
TEL
MUTE
J2
VOL
T
AGE
CONNECT
OR
DC
J6
DRIVER
IC1
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