Read Sony BMZ-K2 / CX-BK2 Service Manual online
CX-BK2
27
27
SECTION 7
DIAGRAMS
7-1.
BLOCK DIAGRAM – CD Section –
OPTICAL PICK-UP
BLOCK
PD1
PD2
I5-10
I1-6
LD
VC
VCC
7
5
3
1
2
4
VDD (3.3V)
GND
PD
VR
FOCUS
COIL
TRACKING
COIL
RF AMP
IC103
VC
27
A
6
B
7
C
8
D
9
E
10
F
11
LD
1
PD
2
MOTOR/COIL DRIVE
IC102
VO1+
52
VO1-
47
VO2+
56
VO2-
55
VO3+
2
VO3-
1
M102
(SLED)
M101
(SPINDLE)
VO4+
10
VO4-
5
F+
F-
T+
T-
35
IN1+
34
IN1-
32
IN2+
31
IN2-
27
IN3+
26
IN3-
24
IN4R
8
STBY
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC101
RFAC
50
29
RFDCI
28
RFDC
16
FE
17
FEI
12
SW
TE_BAL
RFDC
43
FE
39
TE
41
SE
40
66
PCMD
26
RO
4
DATA
R-CH
6
CLOK
5
XLAT
77
SQCK
8
SCLK
15
SCOR
76
SQSO
2
XRST
O-DATA
52
O-CLOCK
55
O-XLT
60
O-SQCK
57
I-SCOR
21
I-SQSO
56
7
SENS
I-SENS
58
SYSTEM CONTROLLER
IC901 (1/3)
85
O-LOD_NEG
O-LOD_POS
O-SLD_POS
O-SLD_NEG
74
I-D_SENSOR
I-SW5-B
I-SW5-A
I-SW4
I-SW3
I-SW2-A
I-SW2-B
I-SW1-A
15
RF AC
18
TE
D/A CONVERTER,
MP3 DECODER
IC104
SDIO
12
23
LO
67
BCLK
BCKIA
13
65
LRCK
LRCKIA
14
71
XTAI
72
XTAO
XI
62
XO
63
5
MIDIO
STAND BY
6
MICK
7
MIACK
39
REQ
1
RESET
19
75
O-ELV_POS
O-ELV_NEG
IO-MIDIO
O-MP3STB
64
O-MICK
O-MICS
O-MILP
62
38
I-MIACK
37
O-MP3RST
19
3
5
I-MP3REQ
65
O-XRST
61
4
66
MICS
MILP
O-PWM3
49
O-PWM2
51
O-PWM1
47
O-LDON
59
73
88
89
70
19
RV101
X201
16.9344MHz
OUT1
FIN
OUT2
RIN
STOCKER MOTOR DRIVE
IC721
M761
(STOCKER)
M
7
9
4
2
87
77
OUT1
FIN
OUT2
RIN
ROLLER MOTOR DRIVE
IC711
M781
(ROLLER)
M
7
9
4
2
76
86
OUT1
FIN
OUT2
RIN
MODE MOTOR DRIVE
IC701
S771
ROTARY ENCODER (MODE)
M771
(MODE)
M
7
9
4
2
S713 (DISC IN (8/12cm))
S714 (DISC IN (8cm))
S715 (DISC OUT)
S716 (STOCKER IN/OUT)
S711 (DISC INSERT(8/12cm))
S717 (DISC POSITION)
S718 (STOCKING)
1
G
2
3
4
69
90
67
68
I-ELV_E3
I-ELV_E2
I-ELV_E1
I-ELV_E0
I-SLD_E3
I-SLD_E2
I-SLD_E1
I-SLD_E0
S702
ROTARY ENCODER
(STOCKER POSITION)
1
2
3
4
82
79
83
80
78
84
81
(ON : When disc insert)
S711
S713
S714
S715
S717
S718
(ON : When disc out from play position)
In the midst disc is moving
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
between play position and stocker
ON : disc is play position side
OFF : disc is stocker side
OFF: In the Midst disc is moving
between play position and
stocker
stocker
(ON : Play position)
(8cm disc only)
ON : Play position
S716
from stocker
ON : The moment disc in/out
G
AUTOMATIC
POWER CONTROL
Q101
E-F BALANCE
(1 TRACK JUMP)
M
M
CD-L
A
(Page 28)
• SIGNAL PATH
: CD
• R-ch is omitted due to same as L-ch.
LEVEL SHIFT
Q731
DISC INSERT
DETECT SENSOR
IC751
Click on the first or last page to see other BMZ-K2 / CX-BK2 service manuals if exist.