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

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