Block Diagram -Cd Section - Sony CDX-M9900 Service Manual

CDX-M9900/M9905X
3-2. BLOCK DIAGRAM — CD SECTION —
DETECTOR
PD1
PD2
26
PD2
PD1
27
28
29
E
E
19
F
F
20
LASER DIODE
AUTOMATIC
LD
POWER
36 LD
CONTROL
Q1
PD LD
PD
OPTICAL
PICK-UP BLOCK
(KSS1000E)
2-AXIS DEVICE
FCS+
11
FCS–
10
(FOCUS)
(TRACKING)
TRK+
13
TRK–
12
6
M902 M
(SLED)
7
8
M901
M
(SPINDLE)
9 VO3–
5
M903
M
(LOADING)
4
A RFACO 42 RFACI ASYO 45 ASYI
41 46
B
C
D
RF AMP,DIGITAL SERVO,
DIGITAL SIGNAL PROCESSOR
IC3
E FEO 24 23 FEI
F TEO 22 21 TEI
PD 37
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
13 FFDR
VO2– VIN2+ 22
VIN2– 21 14 FRDR
VO2+
VO1– VIN1+B 19 11 TFDR
12 TRDR
VO1+ VIN1–B 18
9 SFDR
VO4+ VIN4+ 31
VIN4– 32 10 SRDR
VO4–
6 MDP
VIN3+ 25
VO3+
MUTE 34
VOL+
FWD 1
VOL–
REV 2
81
AOUT1
AOUT2 86 R-CH
LMUTE 89 22 CD LMUT
RMUTE 90 23 CD RMUT
FOK 3 19 CD FOK
SQSO 96 16 CD SQSO
97 18 CD SQCK
SQCK
100 15 CD XRST
XRST
102
DATA 14 CD DATA
XLAT 104 13 CD XLAT
CLOK 105 12 CD CLOK
107 11 CD SENS
SENS
108 10 CD SCLK
SCLK
113
GFS 8 CD GFS
C2POT 114 7 CD C2PO
115 52 CD SCORT
SCOR
SYSTEM CONTROL
XTAI 78 81 X1
X1 X2
16.934MHz 18.43MHz
77 80 X0
XTAO
SW1
46 MEC_DSW
(DOWN)
SW2
53 MEC_SELFSW
BCK 66
(SELF)
60
BCKI
PCMDI 61
SW3
63 45 MEC_INSW
LRCK
(DISC IN)
LRCKI 62
PCMD 65
SW4 42 MEC_LIMIT
(LIMIT)
41 DRON
43 MEC LOAD
44 MEC EJECT
20 20
• R-ch is omitted due to same as L-ch.
• Siganal Path
: CD PLAY
: CD-R/RW(MP3)
LINK OFF 20 LINK OFF
UNISI 56 UNI SI
RXD 25
UNISO 57 UNI SO
TXD 26
UNICLK 58 UNI SCK
BUS ON 50 BUS ON
BU IN 51 BU IN
RSTX 75 SYS RST
A ATT 60 ATT
SYSTEM CONTROL
IC501 (1/3)
EJECT OK 61 72 EJECT OK
OPEN REQ 62 71 OPEN REQ
MECON 63 73 CDMON IN
CDON 64 74 CDON IN
Z MUTE
ZMUT 66 63
CD
IC4
MECON CHK 67
MECHA+6V
CDON CHK 68
SERVO+3.3V
+1.5V REG
IC7
+1.5V
5 VDD 1
+1.5V CONTROL VOUT
Q2,3
CE 3
+3.3V
+3.3V CONTROL
Q5,6
DECON 65
AUDIO INTERFACE
IC8
DEC XMUTE 37 22 CLCK
DEC SSTBY 27 41 SRMSTB
DEC XRST 28 2 RESET
3 STANDBY
DEC STBY 29
DEC INT 30 36 BUCK
DEC SCL 31 7 I2C SCL
DEC SDA 32 6 I2C SDA
EMPH 69 28 BUSO
15 BCK1A
18 BCK1B
11 SD0O
16 LRCK1A
19 LRCK1B
14 SD1O
MAIN
CD-L A
SECTION
(Page 21)
MAIN
B
SECTION
(Page 21)
U COM+3.3V