Diagrams; Block Diagram - Main Section - Sony CDX-646 Service Manual

SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – MAIN 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
TRACKING
F ERROR
F
AMP
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 25
COIL
VO3– VIN3–
DRIVE
9 24
(TRACKING)
(FOCUS)
VO4+ VIN4+
6 31
COIL
VO4– VIN4–
DRIVE
7 32
VO2+ VIN2+
10 22
MOTOR
M101 M
VO2– VIN2–
DRIVE
(SLED)
11 21
VO1+
12
M102 MOTOR VIN1–B
M
18
VO1–
(SPINDLE) DRIVE
13
VL0+ FWD
5 1
M103 MOTOR
M
VL0– REV
(CHUCKING) DRIVE
4 2
05
FILTER
64 63 66 65 83
EFM
RFO
RF EQ RFAC ASYMMENTRY DIGITAL
DE-
16 61
AMP CORRECTOR PLL
MODULATOR
ASYI
60
ASYO
59
RFDC
FE
FE
14
TE
TE
13
LDON LDON
22
HOLD SW HOLD
21
AGCCONT AGC
20
PD
4
54 50 52 51
OP AMP
ANALOG SWITCH
A/D CONVERTER
TEDR
40
TRDR
41
MIRR
DFCT
FFDR
FOK
42
FRDR
43
SFDR
38
SRDR
39
MDP DIGITAL
35
CLV
ON : When the optical pick-up
is inner position
(CHUCKING END DETECT)
ON : When completion of the disc
chucking operation
(SAVE END DETECT)
ON : When completion of the disc
save operation
EMPHI
84
SERIAL
PCMD PCMDI DIGITAL FILTER,
IN
79 80
D/A
LRCK NOISE SHAPER
LRCKI INTERFACE
INTER-
77 78
BCK
BCKI
FACE
81 82
32k RAM
ERROR
CORRECTOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER,
DIGITAL SERVO PROCESSOR
IC101
LDON
HOLD
AGC
GFS
22
DATA
13
CLOK
15
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
SW2
17 17
AOUT2 AIN2 LOUT1
97 96 92
PWM
GND-ISOLATION
& BUFFER
AOUT1 LOUT2 IC401
AIN1
INTEGRATOR
90 91 95
XTAO
87
CLOCK TIMING X130
GENERATOR LOGIC 16.9344MHz
XTAI
86
54 LDON
55 AGCHOLD
56 RF AGC
MUTING
CONTROL
AMUTE 4
91 GFS
Q403
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
• SIGNAL PATH
: CD PLAY
71 CH. F
72 CH. R
89 LIMSW
65 LOAD1
66 LOAD2
CDX-646/646X
CN901 (1/2)
ANALOG OUT
L
L
R
R
MUTING
Q410, 420