Block Diagram -Cd Section - Sony CDX-C90 Service Manual

CDX-C90
Q Q
3 7 6 3 1 5 1 5 0
4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
RF AMP, LD-APC ERROR AMP
KSS-520A
IC1
3 PD1 RFO
4 PD2
INVERTER
7 E
6 F
PD
2 PD
LD DRIVE
1 LD LD ON
Q3
LD
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
2 TR+ OP+
TRACKING
1 TR-
OP+
14 F+
FOCUS
13 F- MUTE
OP+
16 S+
M902
M
(SLED)
17 S-
T E
L 1 3 9 4 2 2 9 6 5 1 3
SPINDLE MOTOR DRIVE
IC601
12 DROUT+ OP IN-
M901
M
(SPINDLE)
13 DROUT- OP IN+
9V REG
IC10
SERVO 9V 2 VO VIN 1 BATT
VC
4
5V REG
IC9
VO VIN
D.F. 5V 2 1 BATT MD 5V
VC
4
SWITCH
CD5V
Q2, 4
w w w
04
DIGITAL SERVO/
DIGITAL SIGNAL PROCESSOR
IC501
17 59 RFDC PCMD 89 9 DATI
FE 16 55 FE LRCK 87 10 LRCI
TE 14 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
19
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
23 71 TFDR
57 XQOK
13
OP- 24 72 TRDR
58 GSCR
14
10 73 FFDR
63 GRST
74 FRDR
OP- 11
9
CLOK 14 46 SCK
20 69 SFDR
OP- 19 70 SRDR
XRST 15 64 XRST
1
SQCK 8
2
SQSO 9
3
SENS 10
4
SCLK 11
5
25
79 MDP GFS 24
6
FOK 37
24 VC DATA 12
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)
LOADING MOTOR
SW1 62 IN SW
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
5V REG
X1
IC11
10MHz
32 X OUT
VO VIN
2 1 BATT
VC
4
SWITCH
BU5V
Q1, 5
17 CDMON
18 CD ON
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– 57 –
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DRAM CONTROLLER
IC2
1
CN2
MD 5V
2 (DIGITAL OUT)
DOUT 18
DATA
16 44 DATAI
BCK 15 43 BCKI
LRCK 17
45 LRCKI
CLOCK GENERATOR
IC7
XTAI 14 7 1 2 6
CF1
16.9344MHz
DRAM
20 5
IC4
|
•
23 9
• |
A0-A9
A0-A9 25 12
• •
34 14
| |
38 18
1
•
28
2
D1-D4 |
• D1-D4
31
24
•
25
XRAS 26 4 XRAS
XWE 27 3 XWE
XCAS 32 23 XCAS
XOE 33 22 XOE
SDTI 45
Q Q
3 7
CD SYSTEM CONTROL
IC5
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
ESPXLT 70 4 WFCK
10
5 MCK
ESPXSOE 71
SCOR 56 3 SCOR
CLK 48 11 SCLK
TX DATA 49 12 SRDT
CE 64 13 DQSY
59
CD CKO
CD RST 21
AMUT
19
FP CLOSE 7
FP OPEN 6
EMPH O 16
BUS ON 61
BUS SI 52
BUS CLK 51
BU IN 60
RESET 30
BUS SO 53
u 1 6 3
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2 4
8 9 9
DIGITAL FILTER
D/A CONVERTER
IC1
IC4
DFDTOL 59 1 D.IN.L I.OUT 14
DFDTOR 24 R-CH
I-V CONVERTER
IC5
DFBCKO 60
2 BCK.I
IC2(1/2)
35 128FSO
DFLRCKO 23 6 2 7 LE.I
ATT 47
SHIFT 48
LATCH 49
CLOCK GENERATOR
IC2(2/2)
46 INIT
MCKIN 17 7 1 3 5
X1
11.2896MHz
5V REG
D/A 5V
IC8
6 3 1 5 1 5 0 8 9
DC/DC CONVERTER
5V REG
AU +5V
DD1
IC109
DD +10V P/C 1
5 +10V
–5V REG
AU –5V
IC108
DD –10V
6 –10V
DD –5V
7 –5V VIN 2
FP CL
FP OP
EMPH
DISPLAY
3
BUS ON
SECTION
BUS SI
BUS CLK
BU IN
RESET m
BUS SO
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.
– 58 –
2
8 9 9
L.P.F
IC6
MAIN
1
CDINL
SECTION
GND ISOLATION
IC101
DFSO
DFCKO
DFLAT
MAIN
2
SECTION
AATT
2 4 9 8 2 9 9
PW ON
BATT
Signal path
: CD
: DIGITAL OUT