Diagrams; Block Diagram - Servo Section - Sony CDP-XA555ES Service Manual

6-1. BLOCK DIAGRAM – SERVO Section –
DETECTOR
RF
E
AMP
A C
B D
FOCUS
ERROR
AMP
F
TRACKING
ERROR
AMP
LD
DRIVE
LD
AUTOMATIC
POWER
CONTROL
PD
LASER
DIODE
OPTICAL
PICK-UP BLOCK
(KSS-273B/J1N)
FOCUS/TRACKING COIL DRIVE
SLED MOTOR DRIVE
IC102
T+
13
(TRACKING)
T–
12
2-AXIS
DEVICE
F+
27
(FOCUS)
F–
26
16
M21
M
(SLED)
17
L11
L12
L11–13
BSL
(SPINDLE)
L14
L13
SECTION 6

DIAGRAMS

RFO
COMPARATOR
IC106
FE
Q103,104
COMPARATOR COMPARATOR
IC107 IC108
TE
VC VC
LDON
LD VCC
10
9
5
4
3
24
23
19
20
MUTE 15
SPINDLE MOTOR DRIVE
IC104
1
CONSTANT CURRENT
5
Q190
Q172
2
CONSTANT CURRENT
4
Q171
MUTE 15
SPINDLE MOTOR DRIVE
IC105
1 CONSTANT CURRENT
5
Q182
2
CONSTANT CURRENT
4
Q181
MUTE 15
S22
(LIMIT IN)
+5V
S21
(LIMIT OUT)
DIGITAL SIGNAL PROCESSOR,
FOCUS/TRACKING/SLED
SERVO, EFM COMPARATOR
IC101
ASYO
39
INTEGRATOR
Q101
RFAC
36
ASY1 ASYMMETRY
38
MUX
CORRECTION
SWITCHING
Q105, 106
SWITCHING
VC DIGITAL
Q102
M IRR
DFCT
FOK
DETECTOR
RFDC
26
TE
27
A/D
CONVERTER
SE
28
EF
29
TRDR
4
TRDR
6
FFDR
8
FRDR
10
SRDR
2
SFDR
100
LOCK
98
RESET SWITCH
Q151,152
H11
H
D+5V
MUTING CONTROL
SWITCH
Q153,154
H12
H
15 15
62
PRIORITY
ENCODER
CLOCK
DIGITAL
GENERATOR
OUT
ADDRESS
GENERATOR
32K
RAM
PEAK
DETECTOR
D/A
EFM
SERIAL/PARALLEL
REGISTER
DATA
DEMODULATOR PROCESSOR
PROCESSOR
SYNC
PROTECTOR
PLL ERROR
CORRECTOR
TIMING
GENERATOR 1
TIMING
CLV SERVO
GENERATOR 2
PROCESSOR
IB TIMS
OVERSAMPLING
FILTER
CLV SERVO
PROCESSOR
SERVO
INTERFACE
FOK
DFCT
MIRR
SERVO DSP
FOCUS
SERVO
79 54 99
TRACKING
SERVO
SLED
SERVO
PWM
GENERATOR
TRACKING
PWM
GENERATOR
FOCUS
GENERATOR RESET
PWM
GENERATOR
SLED
PWM
GENERATOR
96
COMPARATOR
SPINDLE
IC110, 111
MOTOR DRIVE
IC103
VC
CDP-XA555ES
A (Page 16)
DOUT
B (Page 16)
71
SUBCODE
P-W
PROCESSOR
SUBQ
77
SUBCODE
Q
SQCK
PROCESSOR
78
SCLK 83
DATA
C
46 (Page 16)
LRCK 45
BCLK 47
SCOR
74
DATA
D
86 (Page 16)
CPU XLAT
87
INTERFACE CLK
88
SERVO
SENS
AUTO 80
SEQUENCER
FOK
93
DFCT
92
MIRR
91
XRST
81
E
(Page 16)
F
(Page 16)
+5V
SIGNAL
IC204
G
(Page 16)
H (Page 16)
I
(Page 16)
J
(Page 16)
K (Page 16)
L
(Page 16)
• SIGNAL PATH
: CD PLAY
: DIGITAL OUT
R-CH : Same as L-CH