Diagrams; Block Diagram - Cd Servo Section - Sony HCD-GRX50 Service Manual

7-1. BLOCK DIAGRAM – CD SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
DETECTOR
CD D+5V
7
A
A
4 5
RF
B SUMMING
B
AMP
2 6
C
C
1 7
D
D
5 8
FOCUS
ERROR AMP
F
F
10 10 F I-V AMP
E
TRACKING
E
6 11
E I-V AMP ERROR AMP
OPTICAL PICK-UP
(KSS-213D/Q-NP)
LASER DIODE
AUTOMATIC
LD
POWER APC LD
3
CONTROL AMP
Q101
PD LD
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
CH4OUTF
15
CH4SIN
M101 MOTOR
M
25
CH4OUTR
(SPINDLE) DRIVE
16
CH3FIN
CH3OUTF
17 24
M102
MOTOR
M
CH3OUTR CH3RIN
(SLED)
DRIVE
18 23
2-AXIS
DEVICE
CH2FIN
CH2OUTF
12 5
COIL
CH2OUTR CH2RIN
DRIVE
11 6
CH1OUTF CH1FIN
14 2
COIL
CH1OUTR CH1RIN
DRIVE
13 3
MUTE 20
05
SECTION 7

DIAGRAMS

54
RFAC
RF EQ RFO ASYMMETRY
16 51
AMP CORRECTION
ASYI
49
ASYO
48
FE
14
DIGITAL SUBCODE
TE CLV PROCESSOR
13
HOLD SW
21
26 3 14 5 6
LDON
22
APC PD PD
4
AMP
40 41 39 43
DIGITAL SERVO
PROCESSOR
IC101 (2/2)
A/D
CONVERTER
SFDR
28
SRDR
29
FOK
TFDR
24
MIRR/DFCT/
30
MIRR
FOK 22
TRDR
DFCT
31
DETECTOR
23
FFDR
32
FRDR
33
TO SERVO INTERFACE
– 19 –
FILTER
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC101 (1/2)
56 53 55
PCMD
16K
62
RAM BCK
D/A
63
INTERFACE LRCK
61
C2PO
DIGITAL EFM
19
PLL DEMODULATOR
SERIAL
IN
INTERFACE NOISE SHAPER
ERROR
CORRECTOR
SERVO AUTO SERVO
SEQUENCER INTERFACE
DIGITAL
CPU INTERFACE
OUT
7 8 20 1 2 9 21 27 64 15 18 60
S101
(LIMIT)
ON : When the optical pick-up
is inner position.
33 SQ-CLK
DISC-SENS 60
32 SQ-DATA
19 SCOR
56 SENSE
37 CD-CLK
TBL-SENS 61
58 XLT
35 CD-DATA
57 HOLD
OUT-OPEN 71
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (1/4)
ENC1 70
ENC2 69
ENC3
68
LOAD-OUT 66
LOAD-IN 67
59 XRST
TBL-L
63
TBL-R 65
AOUT1 AIN1 LOUT1
70 71
DIGITAL PWM
FILTER, & BUFFER
AOUT2 AIN2 LOUT2
INTEGRATOR
77 76
TO MIRR/DFCT/
FOK DETECTOR
XTAI
CLOCK
TIMING
XTAO
GENERATOR
LOGIC
DISC IN DETECT
LEVEL SHIFT
SENSOR
Q701
IC703
DISC TRAY SENSOR
IC702
S801
(OPEN/CLOSE DET)
CLOSE
OPEN
4
ROTARY
DISC TRAY
2
ENCODER
ADDRESS DETECT
S811
3
DISC TRAY SLIDE MOTOR DRIVE
IC801
FIN OUT1
10 7
MOTOR M801
M
RIN OUT2
DRIVE (DISC TRAY SLIDE)
2 4
DISC TRAY TURN MOTOR DRIVE
IC701
IN1 OUT1
3 7
MOTOR M701
M
IN2 DRIVE OUT2 (DISC TRAY TURN)
6 2
SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (DIGITAL OUT)
– 20 –
HCD-GRX50/R770/RXD7
CD-L
A
72
(Page 23)
75 R-CH
66
X101
67
16.9344MHz
IC381
CD DIGITALOUT
OPTICAL
OPTICAL
TRANSCEIVER
IC381