Block Diagram -Cd Section - Sony CDX-M8800 Service Manual

3-2. BLOCK DIAGRAM — CD SECTION —
DETECTOR
PD1
PD2
26 A RFACO 41
PD2
PD1
27 B
28 C
29 D
E
E
19 E FEO 24
F
F
20 F TEO 22
LASER DIODE
AUTOMATIC
LD POWER
36 LD PD 37
CONTROL
Q1
PD LD
PD
OPTICAL
PICK-UP BLOCK
(KSS1000E)
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING
MOTOR DRIVE
IC1
2-AXIS DEVICE
FCS+
11 VO2– VIN2+ 22
FCS–
10 VO2+ VIN2– 21
(FOCUS)
(TRACKING)
TRK+
13
VO1– VIN1+B 19
TRK–
12 VO1+ VIN1–B 18
6 VIN4+ 31
VO4+
M902
M
(SLED)
7 VO4– VIN4– 32
8 VIN3+ 25
VO3+
M901
M
(SPINDLE)
9 VO3–
MUTE 34
5 VOL+
M903
M
(LOADING)
4
VOL–
42 RFACI ASYO 45 ASYI
46 AOUT1 81
AOUT2 86
RF AMP,DIGITAL SERVO,
LMUTE 89
DIGITAL SIGNAL PROCESSOR
IC3
RMUTE 90
23 FEI
21 TEI
FOK 3
96
SQSO
SQCK 97
XRST 100
DATA 102
XLAT 104
105
CLOK
107
SENS
SCLK 108
GFS 113
C2POT 114
115
SCOR
78
XTAI
13 FFDR
14 FRDR XTAO 77
11 TFDR
12 TRDR
66
BCK
BCKI 60
9 SFDR
PCMDI 61
10 SRDR
LRCK 63
LRCKI 62
65
PCMD
6 MDP
FWD 1
REV 2
21
• Siganal Path
LINK OFF 20
UNISO 57
TXD 26
22 CD LMUT
UNISI 56
23 CD RMUT
RXD 25
UNICLK 58
19 CD FOK
BUS_ON 50
16 CD SQSO
BU_IN 51
18 CD SQCK
RSTX 75
15 CD XRST
A_ATT 60
14 CD DATA
13 CD XLAT EJECT OK 61
12 CD CLOK
11 CD SENS
10 CD SCLK
8 CD GFS
OPEN REQ 62
7 CD C2PO
MECON 63
52 CD SCORT
CDON 64
ZMUT 66
CD
SYSTEM CONTROL
IC4
MECON CHK 67
81 X1
X1 X2
CDON CHK 68
16.934MHz 18.43MHz
80 X0
SW1
46 MEC_DSW
(DOWN)
SW2 53 MEC_SELFSW
(SELF)
SW3
45 MEC_INSW
DECON 65
(DISC IN)
SW4
42 MEC_LIMIT
(LIMIT) DEC XMUTE 37
DEC SSTBY 27
DEC XRST 28
DEC STBY 29
41 DRON
DEC INT 30
43 MEC LOAD
DEC SCL 31
DEC SDA 32
44 MEC EJECT
EMPH 69
21
CDX-M8800/M8805X
: CD PLAY
CD-L
MAIN
A
SECTION
CD-R
(Page 22)
LINK_OFF
UNI_SO
7 1 UNI_SI
2 6 UNI_CLK
5 3
BUS_ON
MAIN
B
SECTION
5V 3.3V LEVEL
(Page 22)
CONVERTER
IC273
BU_CHK
SYS_RST
A_ATT
SYSTEM CONTROL
5V 3.3V LEVEL
IC303 (1/3)
CONVERTER
IC272
77 EJECT OK
2 8 78 OPEN_REQ
6 14 71 CDM_ON
59 CD_ON
8 12
17 3 76 Z_ATT
DR_6V
D_3.3V
+1.5V REG
IC7
+1.5V
CONTROL 5 VOUT VDD 1
+1.5V BU_3.3V
Q2,3
CE 3
+3.3V
+3.3V CONTROL
Q5,6
AUDIO INTERFACE
IC8
22 CLCK
41 SRMSTB
2 RESET
3 STANDBY
36 BUCK
7 I2C SCL
6 I2C SDA
28 BUSO
15 BCK1A
18 BCK1B
11 SD0O
16 LRCK1A
19 LRCK1B
14 SD1O