Sony CDX-C90 - Fm/am Compact Disc Player, Service Manual

Page: 57 / 89

CDX-C90
– 57 – – 58 –
4-2. BLOCK DIAGRAM — CD SECTION —
59 RFDC
55 FE
57 TE
80 SSTP
89 PCMD
87 LRCK
85 WDCK
91 BCK
DIGITAL SERVO/
DIGITAL SIGNAL PROCESSOR
IC501
71 TFDR
72 TRDR
73 FFDR
74 FRDR
69 SFDR
70 SRDR
79 MDP
3 PD1
4 PD2
7 E
6 F
17 RFO
16 FE
14 TE
CD5V
RF AMP, LD-APC ERROR AMP
IC1
OPTICAL PICK-UP
KSS-520A
2 PD
PD
LD
LD DRIVE
Q3
1 LD 19 LD ON
2 TR+
1 TR-
14 F+
13 F-
23 OP+
24 OP-
10 OP+
TRACKING
FOCUS
11 OP-
9 MUTE
20 OP+
19 OP-
OP IN+
OP IN-
TRACKING/FOCUS COIL DRIVE,
SLED MOTOR DRIVE
IC7
SPINDLE MOTOR DRIVE
IC601
16 S+
17 S-
M902
(SLED)
12 SRDT
3 SCOR
5 MCK
1 EXCK
2 SBSO
4 WFCK
EEPROM
IC551
11 SCLK
13 DQSY
9 DATI
10 LRCI
11 WDCI
7 BCKI
16
15
17
DRAM CONTROLLER
IC2
20
|
23
•
25
•
34
|
38
33 XOE
32 XCAS
27 XWE
26 XRAS
A0-A9
D1-D4
45 SDTI
84 C4M
33 DOUT
28 SCOR
27 XROF
3 C4M
2
7
1
2
3
4
5
6
1
2
3
4
5
6
8
9
10
11
12
13
14
7
8
9
10
11
12
13
14
DIN
59 SCOR
4 XROI
20 WFCK
7 EXCK
6 SBSO
8 SQCK
CLOK
9 SQSO
1 WFCK
42 XWRE
43 WRDE
44 XLT
10 SENS
11 SCLK
24 GFS
37 FOK
47 XSOE
48 SDTO
57 XQOK
58 GSCR
12 DATA
14
GRST
SCK
25 RFCK
21 GTOP
5 RFCK
6 GTOP
CDINL
DRAM
IC4
A0-A9
D1-D4
14 XTAI
LRCK
BCK
DATA
4 XRAS
3 XWE
23 XCAS
22 XOE
18 DOUT
M
12 DROUT+
13 DROUT-
M901
(SPINDLE)
25
24
M
M903
(LOADING)
M
INVERTER
9 L+
7 L-
2 LMOT1
4 LMOT2
LOADING MOTOR
DRIVE
IC6
X1
10MHz
TX
SW4
(DOWN)
SW3
(LIMIT)
SW1
(DISC IN)
SW2
(SELF)
28
|
31
67 CD DATA
42 SCLK
54 FOK
55 GFS
16
43
44
CD SYSTEM CONTROL
IC5
57 SENS
65 SCK 2
66 SI 2
20 LD ON
62 IN SW
63 SELF SW
14 LM EJ
15 LM LOM
31 X IN
32 X OUT
17 CDMON
18 CD ON
9 DRV OE
10 D SW
45 GRSRST
ESPSDT
ESPXQOK
EMPH O
46
68
69
70 ESPXLT
ESPXRDE
ESPXWRE
GRSCOR
71
56
48
49 DATA
CLK
SCOR
ESPXSOE
64
19
59
61
52 BUS SI
BUS ON
AMUT
CD CKO
CE
51
60
30 RESET
BU IN
BUS CLK
5
•
9
|
12
•
14
|
18
1
•
2
•
24
•
25
6 FP OPEN
7 FP CLOSE
EMPH
FP OP
PW ON
FP CL
21 CD RST
SWITCH
Q1, 5
5V REG
IC8
5V REG
IC11
BATT
BATT
BATT
MD 5V
CD5V
D/A 5V
BATT
BU5V
SWITCH
Q2, 4
VC
BUS SI
BUS ON
AATT
RESET
BU IN
BUS CLK
53 BUS SO BUS SO
3
DISPLAY
SECTION
Signal path
: CD
: DIGITAL OUT
04
63
46
XRST 15 XRST 64
D/A CONVERTER
IC4
I-V CONVERTER
IC5
DIGITAL FILTER
IC1
L.P.F
IC6
44 DATAI
43 BCKI
45 LRCKI
1 D.IN.L
2 BCK.I
5 +10V
6 –10V
7 –5V
7 LE.I
DFDTOL 14 I.OUT
60 DFBCKO
23 DFLRCKO
24 DFDTOR
47 ATT
35 128FSO
46 INIT
1 P/C
2 VIN
R-CH
DFSO
MAIN
SECTION
2
MAIN
SECTION
1
48 SHIFT DFCKO
49 LATCH DFLAT
1 7 6 2
CLOCK GENERATOR
IC7
CF1
16.9344MHz
17 MCKIN 1 7 5 3
CLOCK GENERATOR
IC2(2/2)
DC/DC CONVERTER
DD1
X1
11.2896MHz
6 2
IC2(1/2)
GND ISOLATION
IC101
4
2 1 VIN
VC
VO
5V REG
IC9
D.F. 5V
4
2 1 VIN
VC
VO
9V REG
IC10
SERVO 9V
4
2 1 VIN
VC
VO
5V REG
IC109
AU +5V
DD +10V
–5V REG
IC108
AU –5V
DD –10V
DD –5V
59
CN2
(DIGITAL OUT) 2
1
MD 5V