Diagrams; Block Diagram - Servo Section - Sony CDX-454RF Service Manual

7-1. BLOCK DIAGRAM – SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
DETECTOR
A
RF
A
5 SUMMING
AMP
B
B
6
C
C
7
D
D
8
FOCUS
ERROR
AMP
E
E
11 E I-V AMP
TRACKING
F
F
10 F I-V AMP
LASER DIODE
AGC
AUTOMATIC
LD
POWER APC LD
3
APC PD
CONTROL AMP
AMP
Q101
PD LD
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
VIN1–B
M102 MOTOR
M
VO1–
(SPINDLE) DRIVE
13
VL0+ FWD
5
M103 MOTOR
M
VL0– REV
(CHUCKING) DRIVE
4
SECTION 7

DIAGRAMS

FILTER
64 63 66 65
RF EQ RFO RFAC ASYMMENTRY DIGITAL
16 61
AMP CORRECTOR PLL
MODULATOR
ASYI
60
ASYO
59
RFDC
FE
FE
14
TE
TE
ERROR 13
AMP
LDON LDON
22
HOLD SW HOLD
21
AGCCONT AGC
20
PD
4
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
2
ON : When the optical pick-up
is inner position
ON : When completion of the disc
chucking operation
ON : When completion of the disc
save operation
83
EMPHI
84
SERIAL
PCMD
PCMDI
IN
79 80
EFM D/A
LRCK LRCKI
INTERFACE
DE- INTER- 77 78
BCK BCKI
FACE
81 82
32k RAM
ERROR
CORRECTOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER,
DIGITAL SERVO PROCESSOR
IC101
GFS
22
DATA
13
CLOK
15
XLAT
14
SENS
16
SQSO
6
CPU SQCK
SUBCODE
7
INTERFACE
PROCESS SCOR
24
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
SCLK
17
FOK
32
XRST 11
36
SW3
(LIMIT)
SW1
(CHUCKING END DETECT)
SW2
(SAVE END DETECT)
21 21
AOUT1 LOUT
AIN1
90 91
PWM
DIGITAL FILTER, LOW-PASS
&
NOISE SHAPER FILTER
AOUT2 AIN2 ROUT
INTEGRATOR
97 96
XTAO
CLOCK TIMING
GENERATOR LOGIC
XTAI
LDON
54 LDON
HOLD
55 AGCHOLD
AGC
56 RF AGC
AMUTE 4
91 GFS
6 CDDATA
7 CDCLK
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
65 LOAD1
66 LOAD2
CDX-454RF/454XRF
L, R
L
A
92
GROUND ISOLATION
(Page 22)
IC401 R
95
MUTING
87 Q410, 420
X130
16.9344MHz
86
MUTING
CONTROL
Q401, 402
• SIGNAL PATH
: CD PLAY