Diagrams; Block Diagram - Servo Section - Sony CDX-T70MX Service Manual

CDX-T70MX
SECTION 5

DIAGRAMS

5-1. BLOCK DIAGRAM – SERVO Section –
DETECTOR
A
B
C
D
E
F
LASER DIODE
PD
OPTICAL
PICK-UP BLOCK
(KSS-720A)
2-AXIS DEVICE
(FOCUS)
(TRACKING)
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
SUMMING 28
B
7
AMP
C RF AMP OFFSET
DC OFST
8
30
CONTROL SWITCH
Q102
D
FOCUS
RW/ROM
9 FE FE
ERROR
16
AMP
E
TRACKING
10 TE TE
18
F ERROR
11
AMP
RW/ROM
SW
12
AUTOMATIC
POWER LD PD D-RAM
1 APC AMP 2
CONTROL IC402
Q101
LD
VC
27 DVC 14
VC
63 59
TRACKING/FOCUS COIL DRIVE,
SLED/SPINDLE/CHUCKING
MOTOR DRIVE
IC201
VO3 + VIN3 + FFDR
8 MOTOR COIL 25 50
VO3 – VIN3 – FRDR
DRIVE DRIVE
9 24 51
VO4 + VIN4 + TFDR
6 31 48
COIL
VO4 – VIN4 – TRDR
DRIVE
7 32 49
VO1 + VIN1 + B SFDR
12 19 46
MOTOR
M101
M M
VO1 – VIN1 – B SRDR
13 DRIVE 18 47
(SLED)
VO2 +
10 MOTOR VIN2 – MDP DIGITAL
M102 M M
VO2 – 21 43
DRIVE CLV
11
(SPINDLE)
VL0 + FWD
5 1
MOTOR
M103 M M
VL0 – REV
4 DRIVE 2
(CHUHCKING)
DIGITAL SIGNAL PROCESSOR,
FILTER
DIGITAL SERVO PROCESSOR,
D-RAM CONTROLLER
IC401
66 69 68 67
RFAC ASYMMETRY DIGITAL EFM
15 71
CORRECTOR PLL DEMODULATOR
ASYI
73
ASYO
74
D0 – D3
A0 – A10
VIBRATION
MEMORY
CONTROLLER
&
COMPRESSION
XRAS
EXPANDER
RAS 5 113
XCAS
CAS 23 119
XWE
WE 4 114
XOE
OE 22 120
XRDE
XWRE
XQOK
58 62 60 61
SUBCODE
OP AMP
PROCESSOR
ANALOG SW
A/D CONVERTER
MIRR
DECT
FOK
SW101
(LIMIT)
ON : When the optical pick-up ON : When the optical pick-up
is inner position is inner position
SW102
(CHUCKING END DETECT)
ON : When completion of the disc ON : When completion of the disc
chucking operation chucking operation
18 18
DIGITAL DOUT
15 85
OUT
PCMD
88 15 15 88
D/A BCK
15 90
SELECTOR
INTERFACE
LRCK
15 86
32k RAM
ERROR
CORRECTOR
XTAI
15 93
CLOCK
GENERATOR XTAO
15 94
X501
16.9344MHz
CD-ROM/RW
SELECT SWITCH 90 R/RW SEL
Q302
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
15 14 84 SQSO
SQCK
CPU
15 15 85 SQCK
INTERFACE
SCOR
15 17 38 SCOR
D301
XRDE
15 9 16 XRDE
XWRE
15 8 17 XWRE
XQOK
15 12 15 XQOK
SERVO AUTO
SEQUENSOR
SYSTEM CONTROLLER
IC301 (1/3)
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
SDI
BCK
A
(Page 19)
LRCK
XTAL-IN
B
(Page 19)
TCXRDE
C
(Page 19)
SIGNAL PATH
: CD PLAY