Block Diagram -Cd Section - Sony CDX-C880R Service Manual

CDX-C880R
4-3. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-521A
INVERTER
PD
LD
TRACKING
FOCUS
M902
(SLED)
M901
(SPINDLE)
04
DIGITAL SERVO/
RF AMP, LD-APC ERROR AMP
DIGITAL SIGNAL PROCESSOR
IC1 IC501
3 PD1 RFO 17 59 RFDC PCMD
4 PD2 FE 16 55 FE LRCK
7 E TE 14 57 TE WDCK
6 F BCK
CD5V C4M
DOUT
80 SSTP
2 PD
SW3
SCOR
(LIMIT)
XROF
LD DRIVE
RFCK
1 LD
LD ON 19
Q3
GTOP
WFCK
EXCK
SBSO
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
2 TR+ OP+ 23 71 TFDR
OP- 24 72 TRDR
1 TR-
OP+ 10 73 FFDR
14 F+
OP- 11 74 FRDR
13 F- MUTE 9
CLOK
OP+ 20 69 SFDR
16 S+
OP- 19 70 SRDR
M
XRST 15
17 S-
SQCK
SQSO
SPINDLE MOTOR DRIVE
SENS
IC601
SCLK
12 DROUT+ OP IN- 25 79 MDP GFS
M
FOK
13 DROUT- OP IN+ 24 VC DATA
LOADING MOTOR
DRIVE
IC6
9 L+
M903
M
LMOT1 2
(LOADING)
7 L- LMOT2 4
SERVO 8V
MD
5V REG
CONTROL BATT
MD 5V
Q401
Q402, 403
CD
5V REG
D/A 5V CONTROL
IC404
Q404, 405
SWITCH
MD 5V
Q2, 4
– 33 –
DRAM CONTROLLER
IC2
89 9 DATI DATA 16
87 10 LRCI BCK 15
85 11 WDCI LRCK 17
91 7 BCKI
XTAI 14
84 3 C4M
33 2 DIN
28 59 SCOR
27 4 XROI
25 5 RFCK
DRAM
21 6 GTOP
20 1 WFCK
7
7 42 XWRE 20 5
|
8 •
6 43 WRDE
23 9
9
• |
44 XLT
A0-A9 25 12 A0-A9
10
47 XSOE • •
11 34 14
48 SDTO
| |
12
38 18
57 XQOK
13 1
58 GSCR
•
14
28
2
63 GRST
D1-D4 |
• D1-D4
31
24
•
14 46 SCK
25
XRAS 26 4 XRAS
64 XRST
XWE 27 3 XWE
XCAS 32 23 XCAS
XOE 33 22 XOE
1
8
SDTI 45
2
9
3
10
4
11
5
24
6
37
12
CD SYSTEM CONTROL
IC5
12
67 CD DATA ESPXQOK 43
4 11
42 SCLK ESPSDT 44 EEPROM
6 14
54 FOK
GRSRST 45
5
13
55 GFS GRSCOR 46
3
7
57 SENS ESPXWRE 68 1 EXCK
1 8
65 SCK 2 ESPXRDE 69 2 SBSO
2
9
66 SI 2 4 WFCK
ESPXLT 70
10
ESPXSOE 71 5 MCK
20 LD ON
SCOR 56 3 SCOR
9 DRV OE
CLK 48 11 SCLK
SW4 10 D SW
(DOWN) TX DATA 49
12 SRDT
CE 64 13 DQSY
SW1 62 IN SW
(DISC IN)
SW2 CD CKO 59
63 SELF SW
(SELF)
CD RST 21
14 LM EJ
15 LM LOM
EMPH O
16
31 X IN
X1
AMUT
19
10MHz
32 X OUT
LINK OFF
8
BUS ON 61
SWITCH
BUS SI 52
BU 5V
Q1, 5
BUS CLK 51
BU IN 60
17 CDMON
RESET 30
BUS SO 53
18 CD ON
D/A CONVERTER
LINE AMP
IC401
IC403
3 1
2 DATA VOUTL 16
3 BCK
VOUTR 13 R-CH
1 LRCK
4 CLKO
XTI 5
X401
16.9344MHz
XTO 6
MD 26
IC4
MC 27
ML 28
22 RST
IC551
– 34 –
1 MAIN
CD L-CH
SECTION
MD
MC
ML
MAIN
2
SECTION
EMPH
AATT
Signal path
: CD
LINK OFF
BUS ON
BUS SI
DISPLAY
3
BUS CLK
SECTION
BU IN
RESET
BUS SO