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CDX-757MX
SECTION 6
Q Q
3 7 6 3 1 5 1 5 0
DIAGRAMS
6-1.
BLOCK DIAGRAM – SERVO Section –
DETECTOR
A
B
C
D
E
F
LASER DIODE
PD
T E
L
1 3 9 4 2 2 9 6 5 1 3
OPTICAL
PICK-UP BLOCK
(KSS-720A)
2-AXIS DEVICE
(TRACKING)
(FOCUS)
w w w
RF AMP,
FOCUS/TRACKING ERROR AMP
IC101
AC
RFAC
SUM
EQ IN
RFAC
RF EQ
RFAC
SUMMING
4
3
VCA
AMP
AMP
A
6
RFDC
RFDCO
RF
B
SUMMING
28
7
AMP
RF AMP OFFSET
C
DC OFST
8
30
CONTROL SWITCH
Q102
D
FOCUS
RW/ROM
9
FE
FE
ERROR
16
AMP
E
TRACKING
10
TE
TE
F
ERROR
18
11
AMP
RW/ROM
SW
12
AUTOMATIC
POWER
LD
PD
1
APC AMP
2
CONTROL
Q101
LD
VC
27
VC
DVC 14
63
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
VO3 +
VIN3 +
TFDR
8
MOTOR
COIL
25
48
VO3 –
VIN3 –
TRDR
DRIVE
DRIVE
9
24
49
VO4 +
VIN4 +
FFDR
6
COIL
31
50
VO4 –
VIN4 –
FRDR
DRIVE
7
32
51
VO2 +
VIN2 +
SFDR
10
22
46
MOTOR
M101
M M
VO2 –
VIN2 –
SRDR
DRIVE
(SLED)
11
21
47
VO1 +
12
VIN1-B
MDP
MOTOR
M102
M M
VO1 –
18
43
13
DRIVE
(SPINDLE)
VL0 +
FWD
5
1
MOTOR
M103
M M
VL0 –
REV
4
DRIVE
2
(CHUHCKING)
x
a o
y
.
i
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DIGITAL SIGNAL PROCESSOR,
FILTER
DIGITAL SERVO PROCESSOR,
D-RAM CONTROLLER
IC101
66 69 68 67
RFAC
ASYMMETRY
DIGITAL
EFM
15
71
CORRECTOR
PLL
DEMODULATOR
ASYI
73
ASYO
74
D0 – D3
A0 – A10
VIBRATION
MEMORY
CONTROLLER
D-RAM
&
IC102
COMPRESSION
XRAS
EXPANDER
RAS
5
113
XCAS
CAS
23
119
XWE
WE
4
114
XOE
OE
22
120
XRDE
XWRE
XQOK
59
58
62
60
61
Q
Q
3
7
6
SUBCODE
OP AMP
PROCESSOR
ANALOG SW
A/D CONVERTER
MIRR
DECT
FOK
DIGITAL
CLV
SW3
(LIMIT)
ON : When the optical pick-up
ON : When the optical pick-up
is inner position
is inner position
SW1
(CHUCKING END DETECT)
ON : When completion of the disc
ON : When completion of the disc
chucking operation
chucking operation
SW2
(SAVE END DETECT)
ON : When completion of the disc
ON : When completion of the disc
save operation
save operation
u 1 6 3
20
20
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2
4
8
9
9
DIGITAL
DOUT
15 85
OUT
PCMDI
DAC
15 89
PCMD
88
15 88
15
BCK
D/A
SELECTOR
90
15
LRCK
INTERFACE
86
15
32k RAM
ERROR
CORRECTOR
XTAI
15 93
CLOCK
XTAO
GENERATOR
15 94
X101
16.9344MHz
CD-ROM/RW
SELECT SWITCH
90
R/RW SEL
Q202
WDCK
15 78
40
GRSCOR
GFS
15 81
5
GFS
DATA
15 23
10
CDDAT
CLOK
15 25
8
CDCLK
XLAT
15 24
9
CDLAT
SENS
15 26
7
SENS
SQSO
3
1
5
1
5
0
8
9
2
15 14
84
SQSO
CPU
SQCK
15 15
85
SQCK
INTERFACE
SCOR
15 17
38
SCOR
D201
XRDE
15 9
16
XRDE
XWRE
15 8
17
XWRE
XQOK
15 12
15
XQOK
SERVO AUTO
SEQUENSOR
SYSTEM CONTROLLER
SERVO
INTERFACE
SCLK
27
6
SCLK
FOK
35
4
FOK
XRST
21
11
XRST
45
95
LOADF
96
LOADR
100
LIM SW
98
LOAD SW
99
SAVE SW
m
c o
.
2
8
9
9
SDO
B
(Page 21)
SDI
BCK
A
(Page 21)
LRCK
XTAL-IN
C
(Page 21)
4
9
8
2
9
9
TCXRDE
D
(Page 21)
IC201 (1/3)
SIGNAL PATH
: CD PLAY
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