2
KDC-W241AY/W241GY/W3041A/W3041AY/W3041G
/W3041GY/W312A/W312AY/W312G/W312GY/W312SAY
BLOCK DIAGRAM
2
16
1
FRONT/
P.ON FL
BU DET
PHONE
ACC DET
RST
PHONE
ACC DET / BU DET
PS1-1 / PS1-2 / PS1-3
P.ON FL
PS2-1 / PS2-2
9
5
9
BU DET
1
1
2
MUTE
R11-15
1
2
3
3
3
1
ROM CORRECTION (NOT USED)
1
REAR/SW
1
1
1
R80,81
P-ANT
P-CON
B.U.
ACC
PHONE
SP-OUT
PS2 1 / PS2 2
PS1 1 / PS1 2 / PS1 3
R103
1
FL+B
5
E-VOL
IC2 or IC3
A8V
SYSTEM u-COM
BU
POWER
DC-DET
Q701,702
PRE-OUT
PHONE
ACC-DET
Q101
SURGE-
Q103
BU-DET
Q102
Q2
DC-CN
A8V
SERVO+B
D5
BU5
SW5
DET
DC-CN etc
PAN5V
RESET IC
IC8
B
CN
RESET
ENCODER
ROTARY
REMOTE
ILLUMI
KEY
MATRIX
KEY
VFD
IC1
SW5
IC6
IC3
J1
+B
ILLUMI
B
AM+B
S1
ED1
J5
MUTE
Q705
J2
A1
SERVO+B
A8V
BU5
1/2W
Rx5
Q301
BU5
BU5
Q901-903
DME1
BU5
SW5
CD
SERVO
IC
to GND
S2
J1
SW5
AM+B
A8V
TUNER
FRONT-END
ANT.
DECODER
RDS
IC7
SW5
E2PROM
SW5
BU
MECHA
CD
PRE-OUT
MUTE
BU5
SW5
F-AUX
J2
PANEL DET
Rx2
1/4W
IC1
BU5
SW5
SW14V
FL+B
IC4
POWER
SUPPLY
IC
FL+B
J3
BU5
IC10
VFD
DRIVER
Q8,9
Q7
ELECTRIC UNIT (X34- )
SWITCH UNIT (X16- )
VREF
8EJE-SW
12EJE-SW
LOS-SW
LOE-SW
MOTOR
LO/EJ
A.GND
A8V
A,B,C,E,F
TR OUT
FO OUT
DM OUT
FM OUT
A3.3V
LD
SIGNAL
S.GND
S7.5V
FO OUT
TR OUT
DM OUT
FM OUT
DRV MUTE
SO
SRAMSTB
SI
BUCK
CCE
PIO0
R246,247
SRAMSTB
BUCK
CCE
PIO0
SO
SI
MRST
MRST
C88,R82
C87,R83
R-ch
L-ch
L-ch
R-ch
ZDET
MUTE L/R
D.GND
D GND
B
U1.5V
SW1.5V
SW3.3V
AGND
BU5V
P.ON
E
F
A
C
B
TR COIL
FO COIL
APC
IC4
16.934MHz
CLOCK
IC3
3.3V REG
IC7
LOADING &
MOTOR
DRIVER
MOTOR
SPINDLE
S2
S4
S1
S3
(0-01)
SLED
MOTOR
DM1
DM2
X1
Q1
RF AMP
SERVO
MP3 DECODER
WMA DECODER
1M bit SRAM
PROCESSOR
AAC DECODER
+
+
+
+
+
LEVEL
SHIFT
Q11
SHIFT
LEVEL
Q12
LEVEL
SHIFT
SHIFT
LEVEL
Q10
CR FILTER
CR FILTER
REVERSAL
CIRCUIT
Q13
BU1.5V REG
IC5
IC6
IC11
SW3.3V REG
SW1.5V REG
ONLY
LOADING &
DPU1
CD PLAYER UNIT (X32-597x-xx)
BOARD
MOTHER
(X34- )