34
KDC-BT6544U/BT6544UY
/BT7043U/BT742U
X34-629x-xx (3/5)
K
L
M
N
O
8.0V
0V
0V
0V
4.0V
4.0V
0V
0V
5V
0V
0V
12
0V
5.6V
5.7V
0V
12.0V
5.5V
0V
0V
5V
5V
0V
5V
0V
5.0V
5.0V
2.5V
0V
1.8V
0V
0V
5.0V
11.2896MHz
0V
3.3V
0V
3.3V
4.0V
3.3V
3.3V
3.3V
0V
8.0V
0V
0V
4.0V
11.3V
0V
5V
0V
5V
5.0V
0V
IC303
IC260
IC240
IC200
IC600
6
9
16
15
11
17
17
16
15
8
4
1
10
12
13
10
14
8
10
1
4
1
13
12
13
12
12
12
13
13
20
21
18
19
18
19
19
18
21
20
20
18
18
20
21
6
6
22
1
1
22
21
20
13
17
15
24
24
24
24
15
17
13
21
21
23
23
22
22
14
14
15
13
13
16
6
SELECTOR
& E-VOL
SOURCE
D263
D264
D265
DSP
D403
D409
D408 D406
J400 5L I/F
POWER
IC
SHIFT
LEVEL
Q170
MUTE
MIC BUFFER
BLUETOOTH
D600
MODULE
BLUETOO
Q601
∗
I
RESET
CN170
D410
LOGIC
∗
E
∗
K
to CD PLAYER UNIT (X32-6260-00) CN2
2
1
7
6
8
VCC
29
52
10
C266
C274 2.2u50
18
C264
10K
R260
1
0.47
SEL
17
C261 0.47
14
DCERR
WINTC1
WINTC0
16
15
WININ
MUXCR
MUXCL
MUXBR
13
12
11
MUTE0
REF3V3
VOLINR
VOLINL
REF5V5
SAIN
SAOUT
SARES
SACLK
SDA
21
SCL
20
19
23
22
C275
C273 2.2u50
2.2u50
26
25
24
28
27
CDCHCOM
63
2
6
MUXBL
MUXAR
MUXAL
AUXR
9
8
7
AUXCOM
AUXL
CDCHR
5
4
3
64
CDCHL
1
MDR
PAOUT0R
MUTEA
58
59
60
61
62
CDL
CDR
MDL
TUNERL
TUNERR
53
54
55
56
57
PAOUT0L
MUTEC
MUTEB
PAOUT1L
2.2u50
C270
VSS3
AOUT2R
39
C258 10u35
ACOUTR
ACOUTL
MUTE2
MUTE1
32
31
30
ACIN3R
ACIN3L
ACIN2R
ACIN2L
ACIN1R
ACIN1L
ACIN0R
35
33
34
36
37
38
C285 1
C284 1
C283 1
C282 1
C281 1
AOUT3R
AOUT3L
R247 100
R246 100
R245 100
R244 100
R243 100
C247 0.01
C246 0.01
C245 0.01
C244 0.01
C243 0.01
15
14
DZF
PDN
16
17
R250
100K
C277
0.01
LDOUT0R
PAOUT1R
47
ACIN0L
VCC
GND
LDOUT2R
LDOUT2L
LDOUT1R
LDOUT1L
PGND
43
40
41
42
44
45
46
PREF
49
50
51
LDOUT0L
VP
48
∗
C276 10u35
C280 1
AOUT2L
AOUT1R
AOUT1L
AINL
R242 100
C254
C251 10u35
C242 0.01
C255
C252 10u35
0.1
VREFH
0.1
13
12
11
10
0.1
9
8
7
6
VSS1
AVDD
AINR
C253
C248 2.2u50
C249
TSTI
5
4
3
2
0.1
VCOM
VSS4
REF18
1
SDTO2
DVDD
SDA
SCL
CLKO
18
19
20
21
C256
0.1
BICK
LRCK
SDTO1
22
23
24
25
C257
VSS2
SDTO3
XTI
XTO
26
27
28
29
30
11.2896MHz
X240
10P
C259
10P
LX R
R401 4.3K
R400 4.3K
R403 4.3K
R402 100
GND
B.U.
TP402
TP403
TP400
TP411
LX REQM
LX CON
LX RST
4
TP404
TP405
2
3
1
C401 47u6.3
R404 1K
R409 1K
R410 100
GND
0.01
LX REQS
LX DA
TA
S
LX DA
TA
M
TP409
TP412
TP410
8
LX AG
LX L
12
TP407
TP408
TP406
TP401
LX CLK
LX MUTE
6
7
13
11
10
5
9
C403
R201
1
C204
33K
R202
0
TP200
0.22
TP201
C208
FR-
FR+
FL-
FL+
C214
0.22
11
PW-GND
ST
-BY
VCC
PW-GND
TA
B
OUT2-
OFFDET
2
4
OUT1-
OUT2+
OUT1+
8
6
10
1
3
5
7
9
PW-GND
AC-GND
SVR
IN3
S-GND
TP202
12
IN1
14
16
OUT3-
OUT3+
18
20
13
IN2
15
IN4
17
19
21
GND
3
4
R178
4.7K
5
R179
100
R208
C217
RR+
RR-
TP203
10
1
C611
C610
V+
8
7
6
5
R603
2.2
C608 100P
R611
47K
1
C607 100P
2
3
4
V-
C604
0.1
R610
47K
330P
C609
R609
10K
R608
10K
R613 22K
1
R612 22K
1
TP601
R605
1K
R607 22K
R606
12K
TP602
TP607
R616 330
C613
0.1
TP610
TP609
TP625
TP626
TP627
TP624
TP630
TP631
TP628
TP629
33u10
C206
3
1
2
10
5
4
7
6
9
8
VCC
U1IN
U1OUT
VCC MIC
SPK1N
VSS
MIC1P
SPK1P
MIC1N
VSS
TP604
TP603
R618 47K
R619 47K
10u35
C612
1
C605
10u35
C606
330
R615
MIN
MIP
22
23
24
CD LOS SW
CD DISC12 SW
BUCK
VBUS OC/
SW VBUS/
16
AUDIO RCH
19
MECHA STOP
20
21
CD SI
CD SO
17
18
AUDIO GND
AUDIO LCH
14
15
PIO0
MUTE L/R
11
12
USB+/NC
USB-/SRAMSTB
13
CD MRST
5
8
DGND
9
10
BU5V
CD LOE LIM SW
6
7
CCE
3
4
CD MOTER
CD LOEJ
1
2
SER
VO GND
SER
VO+B
TP171
TP170
TP172
TP174 TP173
TP175
TP176
TP177
TP178
TP180
TP179
TP181
TP186
TP185
TP187
TP188
TP190
TP189
TP191
TP193
TP192
34
33
45
CDL
CDR
52
3
4
51
50
5
54
53
55
57
58
56
DN
DP
CD PON
DRIVEMUTE
61
66
67
5
6
SDA
10u35
C250
C240 1
C241 1
MCR
MCL
1.8K
R248
36
35
38
37
40
39
SDA
SCL
40
41
C278 1
C279 1
PRR
PNR
PNL
PRL
PFL
PFR
48
FR
RL
FL
RR
100
R262
100
R263
AUL
AUR
AUG
LXG
LXR
LXL
MCL
MCR
TUR
CDR
TUL
CDL
1
C262
1
C263
R261 10K
35
36
37
40
38
39
9
10
MCL
MCR
86
87
85
SCL
SDA
83
9
10
16
92
99
100
98
95
93
2
10
R406
0.47
C400
4.7
R407
10
R408
1K
R411
100
R405
0.47
C402
LXG
LXL
LXR
51
FR
FL
RR
RL
84
C271 1
C272 1
C212 0.22
C210 0.22
0
∗
R171
0
∗
R176
0
∗
R173
TP182
TP183
TP184
0
∗
R174
C315 0.01
4.7K
R170
1
∗
C260
1
∗
C265
2.2u50
C269
SVR+B
BU5V
A8V
PON5V
R175 100
100K
R632
47K
∗
R633
0
∗
R172
0
∗
R177
A8V
A8V
BU
BU
DSP5V
330u6.3
C616
TP600
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+