Diagrams; Block Diagram - Servo Section - Sony CMT-A70 Service Manual

CMT-A50/A70
SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – SERVO Section –
OPTICAL PICK-UP
FOCUS
TRACKING
(SPINDLE)
CMT-A50/A70
RF AMP, FOCUS/TRACKING
BLOCK
ERROR AMP
(KSS-213C)
IC701
VC
16 27 VC RF AC
15
VCC
15
CD +3.3V
A
12 6 A RFDC
28
B
11 7 B RFDCI
29
C
10 8 C
D
13 9 D FE
16
E
14 10 E FEI
17
F
9 F
11
TE
18
AUTOMATIC
LD
POWER CONTROL 1 LD
Q701, 702
GND
PD
2 PD SW 12
VR
COIL/MOTOR DRIVE
IC704
F+
F+ FFDR
13 9
COIL
F-
F– FRDR
12 10
T+
T+ TFDR
2 5
COIL
T-
T– TRDR
1 4
SL+ SFDR
16 20
M701
M
(SLED)
SRDR
17 SL– 19
26 SP+ SPIN 24
M702
M
27 SP–
MUTE 15
R-ch is omitted due to same as L-ch.
SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (DIGITAL OUT)
CD DSP
IC702
84 RFAC
AOUT1 51
88 RFDC AOUT2
56 R-CH
DOUT
62
92 FE
TE
90
SE
91
D-RAM PCMDI 109
IC705
BCKI 111
4
2
LRCKI 107
. .
3 D0
D0 3
.
.
PCMD 108
6 D3
D3 22
.
.
5 BCK 110
23
LRCK 106
116
8
113 .
XRDE 18
11
.
17
A0
A0 14
15
A10 . A10
19
.
13
7
11 .
X701
117 16.9344MHz
22.58MHz
XTAI
47
XWE 4 2 XWE
XCAS 21 9 XCAS
XTAO 48
XRAS 5 1 XRAS
S701
(LIMIT)
SSTP 101
FFDR
96
FRDR
95
DATA
21
CLOK
20
TFDR
98
XLAT
23
XSOE
24
TRDR
97
SCOR 27
SENS 22
SFDR
100
FOK 65
GFS/MNT2/
69
XROF
99 SRDR
103 MDP XRST 28
20 20
CD-L
J302
OPTICAL
1
DIGITAL
OUT (CD)
MP3 DECODER
IC703
15 PCMDO
13 BCKO
14 LRCKO
4 PCMDI
2 BCKI
1 LRCKI
12 XRDE
SDOUT 40
X702
SDIN 41
SDCLKI 38
30 XTAL
SDXLATI 42
29 EXTAL
RDENO 37
XWAKEI 34
NRSTI 33
LOADING MOTOR
M651 M M
DRIVE
(LOADING)
IC651
S651 OPEN
( TRAY OPEN/CLOSE )
DETECT CLOSE
A (Page 21)
58 CD_SDIN
59 CD_SDOUT
60 CD_SDCK
10 CD_SDXLAT
52 CD_RDEN
13 CD_XWAKE
12 CD_NRST
19 CD_DATA (O)
20 CD_CLK (O)
21 CD_XLAT
CD_XSOE
8
CD_SCOR
47
CD_SENS
18
1 CD_FOK
2 CD_GFS
SYSTEM CONTROLLER
IC309 (1/3)
3 CD_XRST
9 CD_LDON
5 CD_PWM RF
7 CD_PWM FE
4 CD_RW/ROM
CD_PWM TE
6
16 CD_OPEN
15 CD_CLOSE
17 CD_OPENIN
14 CD_CLOSEIN