Diagrams; Block Diagram - Servo Section - Sony CDX-747X Service Manual

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7-1. BLOCK DIAGRAM – SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
AC
RFAC
SUM EQ IN
4 3
SUMMING
DETECTOR AMP
A
A
6
RFDC
B RFDCO
B SUMMING
7
AMP
C
C
DC OFST
8
D
D FOCUS
RW/ROM
9 FE
ERROR
AMP
E
E
TRACKING
10
TE
F ERROR
11
AMP
F
RW/ROM
LASER DIODE
SW
12
AUTOMATIC
POWER
LD PD
1 APC AMP 2
CONTROL
Q101
PD LD
OPTICAL
PICK-UP BLOCK
(KSS-720A)
T E
L 1 3 9 4 2 2 9 6 5 1 3
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
2-AXIS DEVICE
VO3 + VIN3 +
8 25
MOTOR COIL
VO3 –
VIN3 –
9 DRIVE DRIVE 24
(TRACKING)
(FOCUS)
VO4 + VIN4 +
6 COIL 31
VO4 – VIN4 –
DRIVE
7 32
VO2 + VIN2 +
10 MOTOR 22
M101 M M
VO2 – VIN2 –
DRIVE
11 21
(SLED)
VO1 +
12 VIN1-B
MOTOR
M102 M M
VO1 – 18
13 DRIVE
(SPINDLE)
VL0 + FWD
5 1
MOTOR
M103 M M
VL0 – REV
4 DRIVE 2
(CHUHCKING)
w w w
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SECTION 7

DIAGRAMS

FILTER
66 69 68 67
RFAC RFAC
RFAC RF EQ ASYMMETRY DIGITAL
15 71
VCA AMP CORRECTOR PLL
ASYI
73
ASYO
74
RF
28
RF AMP OFFSET
30
CONTROL SWITCH
Q102
FE
16 D0 – D3
TE
18
A0 – A10
VIBRATION
MEMORY
CONTROLLER
D-RAM
&
IC102
COMPRESSION
XRAS
EXPANDER
RAS 5 113
XCAS
CAS 23 119
XWE
WE 4 114
XOE
OE 22 120
XRDE
XWRE
XQOK
58 62 60 61
OP AMP
ANALOG SW
A/D CONVERTER
TFDR
48
TRDR
49
MIRR
DECT
FFDR
FOK
50
FRDR
51
SFDR
46
SRDR
47
MDP
DIGITAL
43
CLV
ON : When the optical pick-up ON : When the optical pick-up
is inner position is inner position
ON : When completion of the disc ON : When completion of the disc
chucking operation chucking operation
ON : When completion of the disc ON : When completion of the disc
save operation save operation
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DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
D-RAM CONTROLLER
IC101
DIGITAL DOUT
15 85
OUT
PCMD
15 88 15 88
EFM D/A BCK
SELECTOR 90 15
DEMODULATOR INTERFACE
LRCK
86 15
32k RAM
ERROR
CORRECTOR
XTAI
15 93
CLOCK
XTAO
GENERATOR
15 94
WDCK
15 78
GFS
15 81
DATA
15 23
CLOK
15 25
XLAT
15 24
SENS
15 26
Q Q
SQSO
3 7 6 3
15 14
CPU SQCK
SUBCODE
15 15
INTERFACE
SCOR
PROCESSOR
15 17
XRDE
15 9
XWRE
15 8
XQOK
15 12
SERVO AUTO
SEQUENSOR
SERVO
INTERFACE
SCLK
27
FOK
35
XRST 21
45
SW3
(LIMIT)
SW1
(CHUCKING END DETECT)
SW2
(SAVE END DETECT)
u 1 6 3
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9 9 8
8 TIME OVER
DATA
SAMPLING
2
SERIAL MULTI LEVEL
BCK DIGITAL FILTER D/A
∆ ∑
3 INPUT
WITH CONVERTER
LRCK
INTERFACE MODULATOR
1
FUNCTION
CONTROLLER
BPZ
CONTROL
MODE
CRYSTAL
CONTROL
OSCILLATOR
DIGITAL FILTER,
INTERFACE
D/A CONVERTER
IC501
27 22 4 3
X501
16.9344MHz
66 EMPH
CD-ROM/RW
SELECT SWITCH 99 RW SEL MUTE MUTE 67
Q202
53 GRSCOR
42 GFS
61 CDDAT
59 CDCLK
60 CDLAT
44 SENS
1 5 1 5 0 8 9 2 4
56 SQSO
58 SQCK
52 SCOR
64 XRDE
65 XWRE
63 XQOK
SYSTEM CONTROLLER
IC201 (1/2)
43 SCLK
41 FOK
62 XRST
5 LOADF
6 LOADR
98 LIM SW
97 LOAD SW
96 SAVE SW
m
c o
CDX-747X
2
9 9
CN901 (1/2)
AUDIO OUT
VOUTL
LOW-PASS LOW-PASS LINE
15 16 L
LOW-PASS
FILTER FILTER AMP
VOUTR
FILTER
15 13 IC401 IC401 IC402 R
SCK
MUTING
Q410, 420
6
MUTING CONTROL
SWITCH
Q402
9 8 2 9 9
• SIGNAL PATH
: CD PLAY