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5-1.
BLOCK DIAGRAM – SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
DETECTOR
AC
EQ
A
RFAC
SUM
IN
A
RFAC
SUMMING
6
4
3
VCA
AMP
B
B
7
C
C
8
RFDC
D
SUMMING
D
9
AMP
RW/ROM
FOCUS
ERROR
AMP
E
E
10
TRACKING
ERROR
F
F
AMP
11
RW/ROM
LASER DIODE
AUTOMATIC
LD
POWER
APC AMP
1
CONTROL
Q101
PD
LD
OPTICAL
PICK-UP BLOCK
(KSS-720A)
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
2-AXIS DEVICE
VO4+
VIN4+
6
COIL
VO4–
VIN4–
DRIVE
7
(TRACKING)
(FOCUS)
VO3+
VIN3+
8
COIL
VO3–
VIN3–
DRIVE
9
VO1+
VIN1+B
12
MOTOR
M101
M
VO1–
VIN1–B
DRIVE
(SLED)
13
VO2+
10
M102
MOTOR
VIN2–
M
VO2–
(SPINDLE)
DRIVE
11
VL0+
FWD
5
M103
MOTOR
M
VL0–
REV
(CHUCKING)
DRIVE
4
SECTION 5
DIAGRAMS
FILTER
54
53 56 55
RFAC
RFAC
RF EQ
ASYMMENTRY
DIGITAL
15
51
AMP
CORRECTOR
PLL
MODULATOR
ASYI
49
ASYO
48
RFDCO
RFDC
28
RF AMP OFFSET
DC OFST
30
CONTROL SWITCH
Q102
FE
FE
16
TE
TE
18
SW
12
PD
2
43 39 41 40
OP AMP
ANALOG SWITCH
A/D CONVERTER
TEDR
31
30
TRDR
32
31
MIRR
DFCT
FFDR
FOK
25
32
FRDR
24
33
SFDR
19
28
SRDR
18
29
MDP
DIGITAL
21
26
CLV
1
2
ON : When the optical pick-up
is inner position
ON : When completion of the disc
chucking operation
SERIAL
EFM
D/A
IN
DE-
INTERFACE
INTERFACE
16k RAM
ERROR
CORRECTOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC401
CD-ROM/RW
SELECT SWITCH
Q301
EMPH
64
GFS
18
DATA
5
CLOK
7
XLAT
6
SENS
8
SQSO
1
SQCK
SUBCODE
CPU
2
PROCESS
INTERFACE
SCOR
20
SERVO AUTO
SEQUENCER
SERVO
INTERFACE
SCLK
9
FOK
24
XRST
3
27
SW101
(LIMIT)
SW102
(CHUCKING END DETECT)
17
17
AOUT2
AIN2
LOUT1
77
76
PWM
DIGITAL FILTER,
&
BUFFER
NOISE SHAPER
AOUT1
LOUT2
AIN1
INTEGRATOR
70
71
XTAO
CLOCK
TIMING
GENERATOR
LOGIC
XTAI
99 RW SWL
66 EMPH
MUTE
67
42 GFS
61 CDDAT
59 CDCLK
60 CDLAT
44 SENS
56 SQSO
58 SQCK
52 SCOR
SYSTEM CONTROLLER
IC301 (1/2)
43 SCLK
41 FOK
62
XRST
5
LOADF
6
LOADR
98
LIM SW
97 LOAD SW
96 SAVE SW
CDX-T69/T69X
CN902 (1/2)
72
(L)
GROUND-
ISOLATION
IC501
75
(R)
67
X401
16.9344MHz
MUTING
60
Q502, 503
MUTING CONTROL
SWITCH
Q501
• SIGNAL PATH
: CD PLAY
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