Sony CDX-M9900 Operating Instructions (primary manual), Руководство по обслуживанию

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