2
KDC-BT40U/BT645U
KDC-U546BT
BLOCK DIAGRAM
2
1
BU DET
PHONE
ACC DET
RESET
9
5
BU DET
1
1
MUTE
R15
1
2
2
2
3
1
1
1
1
1
1
R118
1
PS1-1 / PS1-2
ACC-DET / BU-DET
PS1-3 / PS2-1
PHONE
REAR
FRONT
PS1-1 / PS1-2
PS1-3 / PS2-1
P-ANT
P-CON
SP-OUT
PHONE
ACC
BU
FRONT L/R
REAR L/R
P-STBY
2
13
2
2
8
PANEL5V
to GND
9
5
R31,32
FL+B
PAN SW5
PAN SW5
1
2
REAR/SW
E-VOL
IC2
A8V
SYSTEM u-COM
Q707
PHONE
ACC DET
Q101
Q103
BU DET
Q102
SW14V
Q11,12
Q2,3
A8V
SERVO+B
BU5V
SW5
PANEL5V
RESET IC
IC8
B
CONNECTOR
RESET
IC1
IC6
J1
B
Q701-706
MUTE
Q104,105
IC501
Q301
BU5
∗
J4
SW5V
S3
A8V
ANT.
∗
IC7
SW5
BU5
BU5
SW5
IC4
FL+B
J3
SW5
RDS
DECODER
TUNER
Rx1
1/2W
CD
SERVO
IC
SUPPLY
POWER
DC-CN etc
MUTE
PRE
IC
POWER
PRE-OUT
DET
SURGE
DC-CN
BU
USB5V
BU5
DC/DC5V
IC51
CD
MECHA
DME1
SW
HI-SIDE
USB5V
∗
IC52
A900
BU
BU5
(ATOMIC)
LX-BUS
PANEL DET
ENCODER
ROTARY
REMOTE
IC2
FRONT
J2
AUX
S1
FL
USB CN
ED1
J3
ILLUMI
KEY
MATRIX
KEY
1/2W
Rx2
J4
OEM REMOTE
SW5
FL+B
SHIFT
LEVEL
IC900
LPF
Q902
BU5
SERVO+B
BT3.3V
IC901
BT3.3V
A8V
BT MIC CN
CN1
BLUETOOTH
MODULE
ELECTRIC UNIT (X34- )
SWITCH UNIT (X16- )
BU1.5V
BU3.3V
SW3.3V
DPU1
CD PLAYER UNIT (X32-6260-01)
BOARD
MOTHER
(X34- )
E
F
A
C
B
TR COIL
FO COIL
APC
IC2
16.934MHz
CLOCK
IC3
LOADING &
MOTOR
DRIVER
MOTOR
SPINDLE
S2
S1
S3
SLED
MOTOR
DM1
DM2
X3
Q7
RF AMP
SERVO
MP3 DECODER
WMA DECODER
1Mbit SRAM
PROCESSOR
AAC DECODER
+
+
+
+
+
LEVEL
SHIFT
IC5
iPod
IC7
REG
BU3.3 /
AUTHENTICATION
LEVEL
IC6
SHIFT
IC1
u-COM
Q5
SW
BU1.5V
IC9
SW3.3V
REG
Q3
SW
CLOCK
9.000MHz
X1
32.768kHz
CLOCK
X2
IC4
INV
Q9
MECHANISM
VREF
12EJE SW
LOS SW
LOE SW
MOTOR
LO/EJ
AGND
TRO
FOO
DMO
FMO
LD
SIGNAL A/B/C/E/F
S.GND
S7.5V
FOO
TRO
DMO
FMO
CD DRIVE MUTE
SO
SRAMSTB
SI
BUCK
CCE
CD REQ
MSTOP
BUCK
CCE
REQ
SO
SI
RST
MRST
Lch
Rch
Z DET
MUTE L/R
DGND
DVSS
BU1.5V
SW1.5V
D3.3V
BU5V
PD
VBUS SW
USB+
VBUS OC
USB-
DATA S
CD SI
REQ A
MRST
MSTOP
CLK
CD MUTE
REQ M
DATA M
USB D+
USB D-
USB VBUS SW
USB OC
CD LOE LIM SW
R
VIN1/R
VIN2
DVCC3B
PON
DVSS
DVCC3A
PWE
CD SO
DSP REQ
CD CLK
CD RST
ZDET IN
CD SRAMSTB
CE
BSIF LRCK
BSIF DATA
BSIF BCK
BSIF GATE
BSIF ST REQ
IPOD SDA
IPOD SCL
A
VSS
A3.3V
LO
RO
BSIF ST REQ
BSIF GATE
BSIF DATA
BSIF BCK
BSIF LRCK
G
D
S