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HCD-DR8AV/W900AV
7-2. BLOCK DIAGRAMS
BD SECTION
OPTICAL PICK-UP BLOCK
(KSS-213D/Q-NP)
DETECTOR
E
VCC
VC
A
A
5
C
C
A
C
7
D
D
B
D
8
B
B
6
F
E
E
11
F
F
10
LD
LD
DRIVE
3
Q101
PD
4
FD
LASER
DIODE
VREF
PD
LD
IC102
POWER
FOCUS/TRACKING COIL DRIVE
SPINDLE/SLED MOTOR DRIVE
T+
11
CH2OUTR
TRACKING
COIL
CH2FIN
T–
12
CH2OUTF
CH2RIN
F+
14
CH1OUTF
FOCUS
COIL
CH1FIN
F–
13
CH1OUTR
CH1RIN
SD+
CH3OUTF
M102
17
SLED
M
CH3RIN
SD–
MOTOR
18
CH3OUTR
CH3FIN
SP+
CH4OUTF
M101
15
SPINDLE
M
CH4SIN
SP–
MOTOR
16
CH4OUTR
CH4BIN
MUTE
• SIGNAL PATH
: CD
: Digital out
16
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IC103
DIGITAL SIGNAL PROCESSOR
RF AMP
RF
RF EQ
RF AC
RF
SUMMING
16
51
AMP
AMP
FOCUS
FF
INTEG-
ASYI
ERROR
14
49
RATOR
AMP
ASYO
48
TRACKING
TE
ERROR
13
AMP
VC
12
BUFFER
VC
APCLD/PD
LDON
22
AMP
VC
VC
38
CE
42
RFDC
43
FE
39
HOLD SW
REF
SE
21
15
INTEG-
40
TE
RATOR
41
CE
42
TFDR
5
TRDR
6
TFDR
30
TRDR
31
FFDR
2
FFDR
FRDR
3
32
FRDR
33
SRDR
SRDR
23
29
SFDR
SFDR
24
28
MDP
25
26
VC
27
20
— 21 —
IC101
DIGITAL SERVO
16K
RAM
EFM
DEMODULATION
ASYMMETRY
DIGITAL
CORRECTION
PLL
SUBCODE
PROCESSOR
SERIAL IN
INTERFACE
OVER SAMPLING
DIGITAL FILTER
3rd ORDER
NOISE SHAPER
OPERATIONAL
A/D
AMPLIFIER
CONVERTER
ANALOG
PWM
SWITCH
PWM
GENERATOR
SERVO DSP
TRACKING
TRACKING
PWM
SERVO
GENERATOR
FOCUS
FOCUS
PWM
SERVO
GENERATOR
SLED
SLED
PWM
SERVO
GENERATOR
DIGITAL
CLV
XTAI
66
TIMING
LOGIC
ERROR
XTAO
67
CORRECTOR
D/A
DIGITAL
D OUT
60
INTERFACE
OUT
XRST
3
SQSO
1
SQCK
2
SENS
8
CPU
INTERFACE
DATA
SERVO
5
AUTO
XLAT
6
SEQUENCER
CLOK
7
SCOR
20
XLON
14
SCLK
SERVO
9
SSTP
INTERFACE
PWM
27
AOUT1
70
AIN1
71
LOUT1
72
AOUT2
77
AIN2
76
LOUT2
75
— 22 —
X101
16.9344MHz
DOUT
XRST
SQSO
SQCK
SENS
DATA
XLT
CLOK
A
SCOR
MAIN
SECTION
+5V
(Page 25, 27)
S101
LIMIT SW
L OUT
R OUT
HOLD
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