HCD-RG88
2323
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – CD SERVO Section –
SQSO
SQCK
A/D
CONVERTER
CH1OUTR
CH1OUTF
6
7
8
9
16
18
11
10
12
2
1
51
49
48
43
24
41
40
39
64 15
28
29
30
31
32
33
24
25
23
6
5
3
2
17
18
15
16
CD A+5V
DETECTOR
A
B
C
D
RF
SUMMING
AMP
FOCUS
ERROR AMP
TRACKING
ERROR AMP
RFAC
FE
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
TE
E
F
F I-V AMP
E I-V AMP
AUTOMATIC
POWER
CONTROL
Q101
APC LD
AMP
LD
LD
PD
LASER DIODE
RFAC
ASYO
ASYI
ASYMMETRY
CORRECTION
DIGITAL
PLL
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC101 (1/2)
DATA
XLAT
CLOK
14 5
6
MDP
26 7 8
XLON
3
XRST
DIGITAL
CLV
D/A
INTERFACE
SE
TE
FE
RFDC
FOCUS/TRACKING/SLED
SERVO DSP
FOCUS/TRACKING/SLED
PWM GENERATOR
SFDR
CH3FIN
CH4SIN
CH3RIN
CH3OUTF
CH3OUTR
CH2RIN
CH2FIN
CH1RIN
CH1FIN
20
MUTE
SRDR
TFDR
TRDR
FFDR
FRDR
EMPH
WFCK
GFS
MIRR/DFCT/
FOK
DETECTOR
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
CPU INTERFACE
18
63
62
61
19
SENS
20
36
37
35
34 19
SCOR
SQ-DATA-IN
SQ-CLK
XLT
CD-CLK
CD-DATA
SENS
SCOR
1 2
32 33
SCLK
COUT
9 21
SSTP
27
FOK
22
23
MIRR
DFCT
TO SERVO INTERFACE
CH4OUTF
CH4OUTR
M101
(SPINDLE)
MOTOR
DRIVE
MOTOR
DRIVE
CH2OUTR
CH2OUTF
M
M
M102
(SLED)
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
2-AXIS
DEVICE
(TRACKING)
(FOCUS)
DIGITAL SERVO
PROCESSOR
IC101 (2/2)
OPTICAL PICK-UP
BLOCK
(A-MAX. 3)
SW
PD
11
12
14
13
54 56
53
55
FILTER
FILO
PCO
CLTV
FILI
EFM
DEMODULATOR
SERIAL
IN
INTERFACE
DIGITAL
FILTER,
NOISE SHAPER
PWM
&
INTEGRATOR
BUFFER
CLOCK
GENERATOR
TIMING
LOGIC
DIGITAL
OUT
INTERNAL BUS
16K
RAM
ERROR
CORRECTOR
SUBCODE
PROCESSOR
60
43
XRST
AIN1
AIN2
AOUT1
AOUT2
TO MIRR/DFCT/
FOK DETECTOR
PCMD
BCK
LRCK
C2PO
DOUT
70
77
LOUT1
LOUT2
R-CH
72
75
71
76
A
(Page 25)
EQ
IN
15
3
4
EQ
AC
SUM
17
FEI
RF DC
AMP
28
RFDCO
29
RFDCI
19
TE BAL
COIL
DRIVE
COIL
DRIVE
24
26
28
BU-PWM3
BU-PWM2
BU-PWM1
PWM1
PWM3
PWM2
PWM3
PWM2
PWM1
40
LD-ON
48
49
BU UP/DOWN-SW
TBL-SENS
50CD-MUTE
DISC TRAY
STATUS SENSOR
IC711
LASER DIODE
ON SWITCH
Q202 – 205
OPEN-SW 46
CLOSE-SW 47
OPEN
CLOSE
S701
DISC TRAY OPEN/CLOSE
DETECT
S711
OPTICAL PICK-UP
UP/DOWN DETECT
LOAD-OUT 45
LOAD-IN
44
9
7
RIN
FIN
MOTOR
DRIVE
4
2
OUT1
OUT2
TURN MOTOR
DRIVER
IC701
M721
(TURN)
M
SYSTEM CONTROLLER
(CD MECHANISM CONTROL)
IC501 (1/4)
• SIGNAL PATH
: CD PLAY (ANALOG)
: CD PLAY (DIGITAL OUT)
• R-ch is omitted due to same as L-ch.
OPTICAL
TRANSCEIVER
IC201
CD DIGITAL OUT
OPTICAL
CD
L-CH
RFAC
VCA
(LIMIT)
When the optical
pick-up is inner
position
ON :
E-F BALANCE
(1 TRACK JUMP)
RV101
MUTING
Q201
MUTING CONTROL
SWITCH
Q206, 207
R-CH
67 66
XTAO
XTAI
X101
16.9344MHz
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