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KDC-BT40U/BT645U
KDC-U546BT
ELECTRIC UNIT (X34- )
ANT.
IC501
TUNER
A8V
(ATOMIC)
2
SW5
1
A8V
∗
IC7
RDS
DECODER
2
3
8
IC1
1
1
2
IC8
BU5
RESET IC
OEM REMOTE
S3
RESET
J3
J4
to GND
PANEL DET
J2
S1
FRONT
ROTARY
AUX
ENCODER
PAN SW5
IC2
PAN SW5
REMOTE
SWITCH UNIT (X16- )
CD PLAYER UNIT (X32-6260-01)
DPU1
Q7
A
B
E
F
APC
C
IC3
FO COIL
FOO
TR COIL
TRO
MOTOR
DRIVER
DM1
SPINDLE
DMO
MOTOR
DM2
LOADING &
SLED
FMO
MOTOR
2
BLOCK DIAGRAM
∗
J4
LX-BUS
BU
IC2
1
1
E-VOL
MUTE
BU5
2
1
1
SYSTEM u-COM
1
1
5
13
BU5
Q301
PANEL5V
R15
1/2W
Rx1
BU5
2
CONNECTOR
FL+B
R31,32
1/2W
Rx2
5
ED1
FL
KEY
ILLUMI
J3
9
KEY
USB CN
MATRIX
IC2
SIGNAL A/B/C/E/F
PD
LD
RF AMP
+
SERVO
PROCESSOR
+
MP3 DECODER
VREF
+
BSIF ST REQ
WMA DECODER
BSIF GATE
+
BSIF DATA
AAC DECODER
FOO
+
1Mbit SRAM
TRO
BSIF LRCK
DMO
FMO
X3
CLOCK
16.934MHz
Q3
S
D
SW3.3V
SW
G
IC6
BU
1
POWER
IC
1
Q701-706
Q707
PRE-OUT
PRE
MUTE
BU5
Q104,105
BU DET
MUTE
RESET
1
DC-CN etc
9
PHONE
ACC-DET / BU-DET
PS1-1 / PS1-2
PS1-3 / PS2-1
IC900
A8V
LPF
A900
Q902
2
LEVEL
DME1
SHIFT
BLUETOOTH
MODULE
SERVO+B
CD
MECHA
2
BT3.3V
USB5V
CN1
BT MIC CN
IC1
SO
CD SI
SI
CD SO
BUCK
CD CLK
CD REQ
DSP REQ
CE
CCE
SRAMSTB
CD SRAMSTB
RST
CD RST
Z DET
ZDET IN
MECHANISM
BSIF ST REQ
u-COM
BSIF GATE
BSIF DATA
BSIF BCK
BSIF BCK
BSIF LRCK
CD DRIVE MUTE
IPOD SDA
IPOD SCL
Q5
IC9
SW3.3V
REG
X1
IC4
CLOCK
iPod
9.000MHz
AUTHENTICATION
R118
PHONE
PHONE
Q101
ACC DET
ACC DET
Q103
BU DET
BU DET
Q102
FRONT
SURGE
REAR
P-STBY
DET
REAR/SW
IC4
PS1-1 / PS1-2
PS1-3 / PS2-1
POWER
SW5
SUPPLY
IC
A8V
SW5
BU5V
ILLUMI+B
Q2,3
CD
SERVO+B
SERVO
IC901
Q11,12
BT3.3V
SW14V
∗
IC52
HI-SIDE
SW
IC51
FL+B
DC/DC5V
2
IC5
DATA S
REQ A
LEVEL
MSTOP
SHIFT
MRST
IC6
DATA M
REQ M
LEVEL
CLK
SHIFT
CD MUTE
USB D+
USB D-
USB OC
USB VBUS SW
IC7
BU3.3V
BU3.3 /
SW
BU1.5V
BU1.5V
REG
Q9
X2
S1
CLOCK
32.768kHz
S2
S3
SW5
BU5
J1
DC-CN
PHONE
SP-OUT
FRONT L/R
REAR L/R
ACC
BU
P-ANT
P-CON
SW5V
MOTHER
BOARD
(X34- )
SO
CCE
MSTOP
MRST
SI
REQ
BUCK
MUTE L/R
USB+
USB-
VBUS OC
VBUS SW
Lch
Rch
BU5V
DGND
INV
AGND
LOS SW
12EJE SW
LOE SW
LO/EJ
MOTOR
S7.5V
S.GND
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