Diagrams; Block Diagram - Servo Section - Sony CDX-737 Service Manual

CDX-737
Q Q
3 7 6 3 1 5 1 5 0
7-1. BLOCK DIAGRAM – SERVO Section –
PD1 I-V AMP
PD1
38
DETECTOR
PD2 I-V AMP
A D
PD2
39
B C
F
E
OPTICAL PICK-UP
BLOCK
(KSS-521A)
41
42
T E
L 1 3 9 4 2 2 9 6 5 1 3
LASER DIODE
AUTOMATIC
POWER CONTROL 36
Q11
LD
PD
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2-AXIS
DEVICE
OUT+
2
OUT–
1
OUT+
12
OUT–
13
05
OUT+
26
M102
M
OUT–
(SLED) 27
w w w OUT+
M101 17
M
OUT–
(SPINDLE)
16
SECTION 7

DIAGRAMS

RF
RFO
+ 33
SUMMING
AMP
RFI
32
FOCUS OK
COMPARATOR
FOCUS OK
AMP
MIRR
TTL
RF AMP, AMP
TTL
FOCUS/TRACKING
SERVO
IIL
IC11 (1/2) DEFECT IIL
AMP
IIL
TTL
FOCUS
FEI
FEO
FOCUS PHASE
1
ERROR 2
COMPENSATION
AMP
RV14
FE BIAS
FOCUS
40
GAIN
F
TRACKING
TEI
TEO TRACKING PHASE
I-V
ERROR 45 47
E
COMPENSATION
AMP
AMP
LD
LD PD
AMP AMP
PD
37
IC51
TRACKING IN
4
COIL DRIVE
IN
FOCUS
10
COIL DRIVE
SLED SERVO
IC11 (2/2)
IN
SLED SLO SLED SLP
24 16 14
MOTOR DRIVE
AMP
IN
SPINDLE
19
MOTOR DRIVE
x a o
. i
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DIGITAL SIGNAL PROCESSOR, FILTER
CLV SERVO
IC101
39 42 38
RF ASYMMETRY
DIGITAL PLL
44
CORRECTION
ASYI
46
ASYO
47
FOK FOK
27 23
DATA
DATO
22 15
CLK CLKO
20 17
XLT XLTO
21 16
LOCK
19
XRST
23
SENS1 SEIN
25
13
C.OUT CNIN
DIGITAL CLV
24 14
SENS2
26
FEO
6
26 27 28 29 64
TAO
13
Q Q
3 7
SYSTEM CONTROLLER
IC201 (1/3)
54 C.OUT SUBQ 52
22 FOK SCLK 51
8 SENS2 SENS 23
67
CD.DATA
CD.CLK 65
CD.XLT 66
SCOR 63
GFS 24
XRST 21
CH.F 4 4
5 5
CH.R
SW12
(SAVE END DETECT)
LOAD1 7
SW11
(CHUCKING END DETECT)
u 1 6 3
LOAD2 6
y
SW1
(LIMIT)
LIM.SW 9
16 16
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2 4
8 9 9
D.OUT
DIGITAL
71
OUT
40
PCMD
52
BCKO
54
LRCK
50
EFM
DEMODULATOR
RFCK
62
C2PO
63
1
WDCK
49
2
IC403
(2/2)
SUB-CODE
PROCESSOR
16K
RAM
ERROR
CORRECTOR
GTOP
58
WFCK
74
EMPH
72
CPU INTERFACE
CLOCK
70
GENERATOR
C4M
8 7 9 10 12 11 75 76 77 61 100 89
6 3 1 5 1 5 0 8 9
EDGE DETECT
IC403 (1/2)
DATA
CLOCK
CHUCKING MOTOR DRIVE
IC52
OUT1
FIN
1
M103
CHUCKING
M
RIN OUT2
(CHUCKING)
MOTOR DRIVE
7
ON : When completion of the disc
chucking operation. m
ON : When completion of the disc
c o
chucking operation.
.
ON : When the optical pick-up
is inner position.
2
8 9 9
PCMD, BCK,
LRCK, WDCK
PCMD
A
(Page 17)
BCK
LRCK
RFCK, GTOP, WFCK,
C4M, XROF,
RFCK
B
(Page 17)
7 WDCK
GTOP
WFCK
C4M
C16M
C
(Page 17)
SCLK
D (Page 17)
SBSO
E (Page 17)
2 4 9 8 2 9 9
XROF
DATA, CLOCK
F (Page 17)
SCOR
G
(Page 17)
RESET
H (Page 17)
• SIGNAL PATH
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