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Diagrams; Block Diagram - Servo Section - Sony CDX-444RF Service Manual

Compact disc charger system.
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Q Q
3 7 6 3 1 5 1 5 0
6-1.
BLOCK DIAGRAM – SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
DETECTOR
A
RF
A
SUMMING
5
AMP
B
B
6
C
C
7
D
D
8
FOCUS
ERROR
AMP
E
E
11
E I-V AMP
F
F
10
F I-V AMP
LASER DIODE
AUTOMATIC
LD
POWER
APC LD
3
AMP
APC PD
CONTROL
Q101
PD
LD
T E
L
1 3 9 4 2 2 9 6 5 1 3
OPTICAL
PICK-UP BLOCK
(KSS-720A)
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
2-AXIS DEVICE
VO3+
VIN3+
8
COIL
VO3–
VIN3–
DRIVE
9
(TRACKING)
(FOCUS)
VO4+
VIN4+
6
COIL
VO4–
VIN4–
DRIVE
7
VO2+
VIN2+
10
MOTOR
M101
M
VO2–
VIN2–
DRIVE
(SLED)
11
VO1+
12
M102
MOTOR
VIN1–B
M
VO1–
(SPINDLE)
DRIVE
13
VL0+
FWD
5
M103
MOTOR
M
VL0–
(CHUCKING)
DRIVE
4
05
w w w
.
SECTION 6

DIAGRAMS

FILTER
64
63 66 65
RFO
RF EQ
RFAC
ASYMMENTRY
DIGITAL
16
61
AMP
CORRECTOR
PLL
ASYI
60
ASYO
59
RFDC
FE
FE
14
TRACKING
TE
TE
ERROR
13
AMP
LDON
LDON
22
HOLD SW
HOLD
21
AGCCONT
AGC
AGC
20
PD
4
AMP
54 50 52 51
OP AMP
ANALOG SWITCH
A/D CONVERTER
TEDR
25
40
TRDR
24
41
MIRR
DFCT
FFDR
FOK
31
42
FRDR
32
43
SFDR
22
38
SRDR
21
39
MDP
DIGITAL
18
35
CLV
1
REV
2
ON : When the optical pick-up
is inner position
ON : When completion of the disc
x
a o
y
chucking operation
i
ON : When completion of the disc
save operation
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8
83
EMPHI
84
SERIAL
PCMD
PCMDI
IN
EFM
D/A
79
80
LRCK
LRCKI
INTERFACE
DE-
INTER-
77
78
BCK
BCKI
MODULATOR
FACE
81
82
32k RAM
ERROR
CORRECTOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER,
DIGITAL SERVO PROCESSOR
GFS
22
DATA
13
Q
Q
CLOK
15
3
7
6
3
XLAT
14
SENS
16
SQSO
6
SUBCODE
CPU
SQCK
7
PROCESS
INTERFACE
SCOR
24
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
SCLK
17
FOK
32
XRST
11
36
SW3
(LIMIT)
SW1
(CHUCKING END DETECT)
u 1 6 3
.
SW2
(SAVE END DETECT)
21
21
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2
4
9
9
8
AOUT1
AIN1
90
91
PWM
DIGITAL FILTER,
LOW-PASS
&
NOISE SHAPER
AOUT2
FILTER
AIN2
INTEGRATOR
97
96
CLOCK
TIMING
GENERATOR
LOGIC
IC101
LDON
54
LDON
HOLD
55
AGCHOLD
AGC
56
RF AGC
AMUTE
4
91 GFS
6 CDDATA
7 CDCLK
1
5
1
5
0
8
9
2
4
5 CDXLT
93 SENS
77 SQSO
79 SQCK
82 SCOR
SYSTEM CONTROLLER
IC201 (1/2)
92 SCLK
90 FOK
94
XRST
71
CH. F
72
CH. R
89
LIMSW
m
c o
65 LOAD1
66 LOAD2
CDX-444RF
2
9
9
LOUT
L
L, R
A
92
GROUND ISOLATION
(Page 22)
ROUT
IC401
R
95
MUTING
XTAO
87
Q410, 420
X130
16.9344MHz
XTAI
86
MUTING
CONTROL
Q401, 402
9
8
2
9
9
• SIGNAL PATH
: CD PLAY

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