Block Diagram -Cd Section - Sony CDX-C8850 Service Manual

4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP RF AMP, LD-APC ERROR AMP
KSS-521A IC1
3 PD1 RFO 17
4 PD2 FE 16
INVERTER
7 E TE 14
6 F
PD
2 PD
LD DRIVE
1 LD LD ON 19
Q3
LD
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
2 TR+ OP+ 23
TRACKING
OP- 24
1 TR-
OP+ 10
14 F+
OP- 11
FOCUS
13 F- MUTE 9
OP+ 20
16 S+
M902
OP- 19
M
(SLED)
17 S-
SPINDLE MOTOR DRIVE
IC601
12 DROUT+ OP IN- 25
M901
M
(SPINDLE)
13 DROUT- OP IN+ 24
Signal path
: CD
(Page 37)
3
TUNER SECTION CD ON
4
DISPLAY SECTION
MD ON
(Page 36)
04
DIGITAL SERVO/
DIGITAL SIGNAL PROCESSOR DRAM CONTROLLER
IC501 IC2
59 RFDC PCMD 89 9 DATI
55 FE LRCK 87 10 LRCI
57 TE WDCK 85 11 WDCI
BCK 91 7 BCKI
CD5V C4M 84 3 C4M
DOUT 33 2 DIN
80 SSTP
SW3
SCOR 28 59 SCOR
(LIMIT)
XROF 27 4 XROI
RFCK 25 5 RFCK
GTOP 21 6 GTOP
WFCK 20 1 WFCK
7
EXCK 7 42 XWRE
8
SBSO 6 43 WRDE
9
44 XLT
10
47 XSOE
11
48 SDTO
12
71 TFDR
57 XQOK
72 TRDR 13
58 GSCR
14
73 FFDR
63 GRST
74 FRDR
SCK
CLOK 14 46
69 SFDR
70 SRDR
1
SQCK 8
2
SQSO 9
3
SENS 10
4
SCLK 11
5
GFS 24
6
FOK 37
79 MDP DATA 12
CD SYSTEM CONTROL
VC
IC5
67 CD DATA
4
42 SCLK
6
54 FOK
5
55 GFS
3
57 SENS
1
65 SCK 2
2
66 SI 2
20 LD ON
9 DRV OE
SW4 10 D SW
(DOWN)
SW1 62 IN SW
LOADING MOTOR DRIVE
(DISC IN)
IC6
SW2 63 SELF SW
(SELF)
9 L+
M903
M LMOT1 2 14 LM EJ
(LOADING)
7 L- LMOT2 4 15 LM LOM
31 X IN
X1
10MHz
32 X OUT
SWITCH
BU5V
Q1, 5
17 CDMON
SWITCH
MD5V
Q2, 4
18 CD ON
35 35
DATA 16 DATA
BCK 15 BCK
TUNER
1
LRCK
17 LRCK
SECTION
XTAI 14 MCK
(Page 37)
EMPH
DRAM
IC4
20 5
| •
23 9
|
•
A0-A9 25 12 A0-A9
• •
34 14
| |
38 18
28 1
D1-D4 | •
31 2
D1-D4
•
XRAS 26
24
•
XWE 27
25
XCAS 32
4 XRAS
XOE 33
3 XWE
SDTI 45
23 XCAS
22 XOE
EMPH O 16
12
ESPXQOK 43
11
ESPSDT 44 EEPROM
14
IC551
GRSRST 45
13
GRSCOR 46
7
ESPXWRE 68 1 EXCK
8
ESPXRDE 69 2 SBSO
9
4 WFCK
ESPXLT 70
10
ESPXSOE 71 5 MCK
SCOR 56 3 SCOR
CLK 48 11 SCLK
TX DATA 49
12 SRDT
CE 64 13 DQSY
CD CKO 59
BUS ON 61 BUS ON
BUS SI 52 BUS SI
BUS CLK 51 BUS CLK
2
DISPLAY SECTION
LNK OFF 8 LINK OFF
BU IN 60 BU IN (Page 36)
RESET 30 RESET
BUS SO 53 BUS SO
CDX-C8850/C9500