35
KDC-BT6544U/BT6544UY
/BT7043U/BT742U
X34-629x-xx (4/5)
T
S
R
Q
P
0V
3.3V
5.0V
1.3V
11.4V
0V
0.8V
1.0V
0.5V
0V
5.0V
12.0V
0V
5V
4.8V
0V
12.0V
0V
0V
5V
5.0V
5.0V
0V
5V
0V
0V
5V
5V
0V
5.0V
IC150
IC70
IC10
∗
IC241
IC601
KDC-BT6544U/BT6544UY/BT7043U/BT742U (1/2)
14
23
14
17
24
13
13
14
14
14
14
6
17
17
17
17
25
25
25
26
26
26
26
ILLUMI AVR
CONTROL
POWER
D70
for
DIGITAL
D50
Q50
Q53
Q52
SERVO AVR
POWER SUPPLY
AUDIO 8V REF/
Q30
SURGE
ACC DET
Q113
E2PROM
SMALL
DET SW
Q130
D110
Q111
Q110
POWER CONTROL
OUTPUT
Q112
SW
BU DET
SW
Q90
D81
D130
Q115
ANT SW
POWER
D112
D111
Q114
D114
D113
SW5V
D92
Q92
D90
Q93
D93
D82
Q80
Q83
Q82
D200
D80
4V PRE OUT
AVR
OVER-CURRENT
PROTECTION
Q81
J1
DC IN
D1
Q51
D40
Q40
Q43
Q42
Q31
Q41
BU5V AVR
Q32
Q33
D30
D31
D20
Q20
Q21
Q11
Q23
DSP5V AVR
Q22
Q10
Q12
AUDIO 8V AVR
FER
OTH
MODULE
BLUETOOTH
BLUETOOTH
Q601
D603
MODULE
3.3VAVR
A600
∗
F
AVR
PANEL
& USB
DET SW
∗
D
∗
G
LAMP
CN600
MODULE
BLUETOOTH
RESET
∗
H
SW
∗
J
SIGNAL LINE
B LINE
GND LINE
∗
A
22
257
0P
259
0P
FL-
FL+
RL+
RL-
PW-GND
AC-GND
VCC
OUT3-
OUT3+
18
20
17
19
21
VIN
PG
R73
10K
330P
220u10
R150 22K
C151
0.1
C154
C153
0.1
TP70
BOOST
C70
C71
0.1
L73
180
C72
0.47
10
C77
R75 68
BD
1
L70
22uH
SW
4
3
2
1.8MHz
RT
FB
VC
10
TP71
7
8
9
SWRGND
15K
RUN
C73 4.7
5
L72
180
L71
180
SYNC
C74
1000P
6
R51 47K
22u16
R74
TP60
C50
R52
2.7K
TP616
ILLGND
OUT
560
560
22u16
C287
0.01
C286
47u16
C131
1
C132
0.022
C110
0.1
R113
R114
C111
1
R110
560 1/2W
C112 3.3u50
R111
560 1/2W
R112
22K
R90
10K
10K
R91
TP81
R80
100
C80 47u16
R82 2.2K
C84
R132 47K
1/2W
R131
100K
1/2W
4.7K
R115
R116
22K
R119
220
1/2W
220
1/2W
R118
∗
R117 0
R120 4.7K
R30
TP30
R99
47K
R98
20K
R96
18K
C92 0.01
R97
100K
R102
1K
R101
47K
R104 R103
1K
1K
TP91
R100
TP90
68K
2.2
C83 10u35
R86
1000P
C82
R87
1K
R11
4.3K
TP23
C12 1000P
C10
220u50
TP21
24K
R10
C222
R211 22K
R208
R206
0
R207
100K
TP203
10
∗
R209
4.3K
1
TA
B
PW-GND
MUTE
OUT4+
OUT4-
24
26
CD
25
23
27
R210 330
1
TP80
∗
W80
R213
TP204
13K
9
8
FL+
Q81-83
Q80
FRONT Lch+
TP1
1000P
C4
C2
3300u16
FRONT Rch+
FRONT Rch-
TP7
RL-
FR-
RR-
RL+
FL-
TP4
TP3
TP2
TP5
TP6
FR+
RR+
TP10
TP8
REAR Lch-
REAR Lch+
FRONT Lch-
REAR Rch-
10
7
11
6
EXT CONT
REAR Rch+
P-ANT
PHONE
P-CON
12
13
5
4
14
3
L1
FUSE
(F52-0023-05)
ILLUM
ACC
GND
TP15
16
1
15
2
B.U.
R40 100K
C40
100u16
R41
680
C31 10u35
C30
100u6.3
8.2K
R31
22K
C33
220u25
R33
12K
SRVGND
DGND
100u6.3
C22
0.1
C23
R21
6.8K
TP22
GND
IN
R12
220
AGND
47K
GND
GND
GND
GND
TP
607
TP611
TP613
1
3
2
4
TP606
TP605
L600
180
2
3
C615
0.33
1
TP608
VOUT
VIN
GND1
A8V
DSP5V
BU5V
PON5V
SRV+B
TP40
0.47
C41
ILL+B
TP50
0.1
C52
13K
R71
R72 82K
59
49
TP9
TP11
TP12
TP13
TP14
TP16
10K
R1
10K
R2
4
15
2
14
3
F1 10A
C3 0.01
TP20
TP17
TP18
TP19
10A
37
1000P
C81
R83 3.6K
R84 4.3K
47K
R81
R85 5.6K
51
48
0.01
C133
R130 100K
470
TH200
10
9
8
13
11
12
14
NRST CPU
NBOOTS
VCC MIC
MIC1P
VSS
U3IN
U3OUT
TP612
TP615
TP614
22
C614
MIN
4.7K
R620
0.1
C618
VIN
EN
GND
3
2
1
VOUT
OC
4
5
78
26
80
77
100
SDA
SCL
79
71
75
74
72
15
14
3
4
2
73
PON5V
V5V
D5V
SDA
SCL
WC
VCC
3
2
NC2
NC1
1
VSS
NC3
4
6
7
8
5
CP240
D5V
5
6
D5V
A8V
BU5V
A8V
BU
BU
BU
330u6.3
C616
DSP5V
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+