Read Sony BMZ-K2 / CX-BK2 Service Manual online
CX-BK2
38
38
7-11. SCHEMATIC DIAGRAM – MAIN Board (1/4) –
•
See page 36 for Waveforms.
•
See page 58 for IC Block Diagram.
R910
R911
R912
R913
R914
R915
R901
R902
R903
R904
R905
R906
R907
R908
R916
R918
R919
R921
R922
R917
R909
C960
C959
C958
C961
C962
C963
R527
R528
R529
R530
R531
C939
C912
C919
C918
C917
C916
C915
C913
R719
R721
R722
R714
R725
R724
R726
R727
R728
R729
R702
C954
R920
R718
R717
R716
R712
R723
R713
R715
R711
R710
R709
R708
R707
R751
R741
R740
R730
R731
R639
R752
R734
R733
R738
R754
R732
R704
R703
R737
R952
R953
R969
D911
R968
C901
IC904
C932
R980
D904
R981
D906
D902
C925
C922
C952
C944
C923
C910
C911
C909
C936
D905
C914
D910
C935
C934
C933
R745
R746
R744
R747
R748
R749
R753
R750
R739
C957
C956
C955
C920
C921
C908
C946
R761
R984
R961
R970
R955
R958
R959
R960
C938
R967
CN901
CN905
R701
R940
R941
R942
Q906
C931
Q901
IC901
C928
C930
C940
R982
R983
C949
R950
Q902
R923
R924
R925
R926
R927
R928
R929
R930
R931
R932
R933
R934
R935
R936
R937
R938
R939
C945
IC902
IC905
C943
C948
R946
C905
C906
C951
C950
R957
R947
X901
R999
C926
R954
C927
R951
C953
CN999
L901
C924
R945
X902
R998
CN902
100
100
100
100
100
100
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
47k
2.2k
47k
0.001
0.001
0.001
0.001
0.001
0.001
100
100
100
100
100
0.1
1200p
1200p
1200p
1200p
0.0022
0.0022
1200p
10k
10k
10k
10k
1k
1k
1k
10k
10k
10k
47k
0.0039
10k
10k
10k
10k
1k
1k
1k
10k
10k
10k
10k
10k
10k
100
1k
1k
1k
1k
2.2k
1k
1k
1k
1k
2.2k
1k
1k
2.2k
100k
100k
27k
1SS355TE-17
1k
100
10V
10V
M62703ML
0.1
4.7k
1SS355
470
1SS355
1SS355
0.1
0.1
100p
R996
10k
0.001
1
18p
22p
1800p
100
16V
16V
1SS355
0.1
MA8100-M
0.022
100
16V
16V
22
25V
1k
1k
1k
1k
1k
1k
1k
1k
1k
100p
100p
100p
1
1
0.001
100p
10k
100
4.7k
0
1k
39k
1.5k
220k
1
50V
100
27P
19P
220k
R995
10k
2.7k
150k
68k
DTC144EKA-
T146
10
50V
DTA114EKA-
T146
-JBT-A
22
50V
0.001
1000
16V
100k
100k
100p
0
2SC3052F-T
1-LF
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
0.1
BD4923G
MM1614A
0.001
100p
0
0.001
0.001
100p
100p
0
1k
32.768KHz
330k
0.001
10k
R997
10k
10
50V
10k
0.022
7P
0
0.22F
50V
10k
5MHz
4.7M
23P
FR-GND
FR-VDD(3.3V)
V-STBY
O-SHIFT_DATA
O-SHIFT_CLK
O-SHIFT_STB
DO
CE
TUNED
STEREO
LEVEL
HEADPHONE
MUTE
POWER
MCLOCK
MDATA
INH
D-GND
I2C_CLK
I2C_DATA
USB_ACK
USB_INT
USB_VBUS_ON
O-SHIFT_SO
O-POWER-MONITOR
A-GND
M-GND
+12V
EVER3.3V
M1
M2
M3
M6
M7
M8
M9
M10
M11
M12
M13
M14
M15
M16
M17
M18
M19
M20
M21
C1
P1
P2
P3
M5
M22
M23
F5
T5
M20
M18
M16
M14
M12
M10
M
13
M
17
M
21
M
23
M
22
U3
U4
U5
K1
K2
K3
K4
K5
K6
K7
K1
K2
K3
K4
K5
K6
K7
B1
B2
B3
B4
B5
B6
B2
B1
D3
D4
B3
S1
S2
S3
S1
S2
S
3
U1
U2
U3
U4
U5
T4
T5
T6
T7
S1
S2
S3
F4
F5
F6
F7
F9
F10
F6
F4
F7
F9
T4
T7
T6
S1
S2
S3
F8
F10
M
19
M8
M6
M3
M1
M
2
M
5
M
7
M
9
M
11
M
15
B
5
U
1
U
2
C20
C19
C18
C17
C16
C15
C14
C13
C12
C11
C10
C9
C8
C7
C6
C5
C4
C3
C2
B7
B7
C
3
P3
P1
P
2
F8
B6
B
4
C5
C
1
C9
C7
C
14
C
16
C
18
C
20
C19
C17
C
15
C13
C
8
C6
C4
C2
D
2
D
1
C
10
C
11
C
12
I-SUFIX
AVREF0
I-USB_ACK
I-D
E
C
K
_
P
A
C
K
O-MDATA
GND
VM
VDD
DATA
CLK
LCK
I-RMC
KEY1
KEY2
KEY3
DI
CL
CE
INH
JOG
VOL
TREBLE
BASS
GND
VDD
SI
SCK
SO
RESET
FLMDCO
I-SW2-B
I-SW1-A
I-D_
SENSOR
I-S
W
3
I-USB_INT
STBY
STBY
O
-M
P
3
R
S
T
O-PWM3
O-PWM2
D+5V
M+12V
M+12V
MGND
MGND
D.SENSOR
SW3
SW1-A
SW2-A
SW2-B
SW4
SW5-A
LOD_POS
LOD_NEG
SLD_POS
SLD_NEG
ELV_POS
ELV_NEG
SW5-B
SLD_E0
SLD_E1
SLD_E2
SLD_E3
ELV_E0
ELV_E1
ELV_E2
ELV_E3
SCOR
SQCK
SENS
SQSO
LDON
CLOK
XLT
DATA
XRST
PWM1
PWM2
PWM3
DGND
MP3STB
MIACK
MIDIO
MP3RST
MP3REQ
MICS
MILP
MICK
D-GND
D-OUT
O
-L
C
D
_
C
L
K
O
-L
C
D
_
D
A
T
A
O
-L
C
D
_
C
E
I-L
E
V
_
E
2
I-E
L
V
_
E
3
I-E
L
V
_
E
1
I-S
L
D
_
E
3
B
V
S
S
B
V
D
D
I-S
L
D
_
E
1
O
-E
L
V
_
P
O
S
I-S
W
2
-A
I-S
W
4
O
-L
O
D
_
P
O
S
O
-S
L
D
_
P
O
S
I-S
W
5
-B
O
-D
A
T
A
I-C
L
O
C
K
I-
S
Q
S
O
(M
U
T
E_
R
E
Q
)
I-S
Q
C
K
(S
Y
S
_
R
E
S
E
T
)
I-S
E
N
S
(4
C
H
_
C
L
K
)
O
-L
D
O
N
(4
C
H
_
D
A
T
A
1
)
O
-X
LT
(4C
H
_
D
A
T
A
2
)
O
-X
R
S
T
O
-
M
IC
K
IO
-M
ID
IO
O
-M
P
3
R
E
Q
O
-M
IL
P
O-SLD_NEG
O-LOD_NEG
O-ELV_NEG
I-SLD_E0
I-SLD_E2
I-ELV_E0
I-RE_VOL
I-RE_BAS
I-RE_TRE
I-RE_JOG
I-KEY1
I-KEY2
I-KEY3
I-POWER_MONI
I-LEVEL
I-SW5-A
I_
R
D
S
_
D
A
T
A
I_
R
D
S
_
S
IG
(E
C
H
O
_
C
E)
A
V
S
S
I-R
D
S
_
C
LK
A
V
R
E
F
1
I-
S
T
E
R
E
O
I-T
U
N
E
F
L
M
D
0
V
D
D
R
EG
C
V
S
S
X
1
X
2
R
E
S
E
T
X
T
1
X
T
2
C
A
N
'T
U
S
E
I-
D
E
C
K
_
P
L
A
YS
W
I-
D
E
C
K
_
E
N
D
S
W
I-D
O
I-R
M
C
I-
S
C
O
R
I2
C
-U
S
B
_
D
A
T
A
I2
-U
S
B
_
C
L
K
O
-M
IC
S
I-D
E
C
K
F
R
E
C
I-D
E
C
K
_
R
R
E
C
I-USB_VBUS_ON
EVSS
EVDD
O-MUTE
O-POWER
I-HEADPHONE
O-SHIFT_CLK
O-SHIFT_DATA
O-SHIFT_STB
O-PLLCE
O-MCLK
I-POWER_DOWN
I-MIACK(I2C_DATA)
O-MP3STB(I2C_CLK)
O-PWM1
(1/4)
BAND-PASS
FILTER
SYSTEM CONTROLLER
µPD703260YGF-S04
Q901,906
B+ SWITCH
VOLTAGE DETECT
G
I
O
R
E
S
E
T
N
C
N
C
G
N
D
V
D
D
RESET SIGNAL
GENERATOR
+4V REGULATOR
C
O
N
T
VIN
VOUT
N
O
IS
E
G
N
D
(FOR CHECK)
R766
2.7k
R764
2.7k
R762
2.7k
R760
2.7k
2.2k
(Page 35)
(Page 41)
(Page 39)
(Page 33)
(Page 40)
(Page 53)
(Page 40)
(Page 40)
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