Block Diagram -Cd Section - Sony CDC-R30MP Service Manual

4-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
BLOCK
1 VF2
2
+3V
VT2
3
4
VT1
5
6
VC
VF1
7
8
MD
9
10
LD
11 LD
DRIVEW
Q201
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC351
13 VO1+
14 FOCUS
FOCUS
COIL
COIL
12 VO1-
DRIVE
13
15 VO2+
12
TRACKING
TRACKING
COIL
COIL 14 VO2-
DRIVE
11
+ VO4+
SPINDLE
15
M2
MOTOR
M
VO4-
(SPINDLE)
16
DRIVE
-
SLED/
VO3+
+
17
LOADING
M1
M
MOTOR
VO3-
(SLED/LOADING) 18
-
DRIVE
RF AMP,DSP,DEC
IC201
126 B
127 D
128 F
E
129
124 A
125 C
141 PD
142
LD
DRAM
IC202
RAS 18 68 RAS
LCAS 35 69 CAS0
34 70 CAS1
UCAS
WE 17 71 WE
OE 33 72 OE
2
DQ1
I
I
5
DQ4
•
DQ5 7
I I
DQ8 10 73 RDB0
I
• I
88
DQ9 41
RDB15
I I
DQ12 44
•
46
DQ13
I
I
49
DQ16
21
A0
I
I
A3 24 90 RA0
• I
I
A4 27 99
RA9
I I
A9 32
VC 131 REFOUT
OPIN1-
3
105 FD
OPIN2-
6 106
TD
OPIN4-
26
108 MD
OPIN3-
23 107 SD
STBY1 9
STBY2 20
23
LOUT 35
27
ROUT
MECHANISM CONTROL
IC301
RST 2 67 PRESET OUT
RESET 31
AB12 3 61 AD12/HAD12
MS CS 91
I I I I
AB8 7 57 AD8/HAD8 CLK 96
DCDMS 95
AD7 8 54
AD7/HAD7
I
I I 94
I DMSCD
AD0
15 47
AD0/HAD0
MS SRQ 97
READY 90
92
BATT IN
CS 16 65 CS
ASTB 17 44 ASTB/HAST
READ 18 43 HEAD/HDSTB
WRITE 19 40
WRITE
9 POWER CONT
BUFFER
IC302 POWER CONT 5
1 OE
WAIT Y
20 2 A 4 27 WAIT
INTQ
21
87 INTQ
EJECT MUTE 99
RFOK 53 68 RFOK
LIMIT SW
93
LOCK 61 69 LOCK
SW3 86
SW2 89
SW1 88
XTAL1 O 39
X211
16.9344MHz
XTAL1 I 38
X2 35
2 DRV CONT
X1 36
23
CDC-R30MP/X30MP
CD L
CD R
RESET
CDS CS
CDS CLK
CDS DCDMS
CDS DMSCD
CDS SRQ
READY
D301
BATT IN
+3V REG
IC511
V OUT
+3V 2 V IN 1 CD+8V
ON/OFF
5
+3.3V REG
IC501
OUT
+3.3V 1 IN 2 BU+5V
MUTE
SW1
S1 S2 S3 S4
(DISC IN1) (DISC IN2) (CHUCH) (LIMIT)
X301
16.9344MHz
• Signal path
: CD
MAIN
A
SECTION
(Page 24)