Block Diagram -Cd Section - Sony CDX-MP70 Service Manual

CDX-MP70
4-2. BLOCK DIAGRAM — CD SECTION —
RF AMP
IC2
EQ
IN
RF 3 VCA
IC3 (1/2)
A
6
B
RFDC
A 3 1 7
I-V
C AMP
B 5 AMP 7 8
D
9
2V REG B+
VC
FOCUS
IC7 (RF+5V)
ERROR
A-D
AMP
IC3 (2/2)
E 12 14 10
I-V GAIN
AMP BAL
F 10 8 11
OPTICAL
VC
PICK-UP VC 27 VC
BLOCK
DVCC
B+ (SERVO+3.3V)
13
AUTO POWER
LD
LD CONTROL 1
Q1
PD
APC
PD 2
AMP
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOR DRIVE
IC8
OUT2F FFDR
FOCUS
27 29
F+
OUT2R COIL FRDR
F- 25 30
DRIVE
OUT1F TFDR
TRACKING
T+ 21 19
COIL TRDR
OUT1R
T- 23 18
DRIVE
M2
OUT3F
SFDR
SLED
M 12 14
SLED
MOTOR
OUT3R SRDR
MOTOR
10 15
DRIVE
M1
OUT4F
IN4F
SPINDLE
M
SPINDLE 6 4
OUT4R MOTOR
MOTOR
8
DRIVE
PSB
16 3
MOTOR
CTL
IC9
DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
RFAC
RFAC
SIGNAL
EQ 15 71
PROCESSOR
RFDC
RFDC
28 58
63 VC
OFFSET
DC OFST
30 CONTROL
Q2
FE
FE
16 62
OP AMP,
SE
61 ADC
TRACKING
TE
TE
18 60
ERROR
AMP
FFDR
TE BAL
19 50
FRDR
51
B+
VCC
22
(RF+5V)
TFDR
48
DVC
TRDR
VC 14 49
SFDR
46
SRDR
47
APC MODE
DIGITAL
12 CONTROL 42 C176
CLV
Q5,6
MDP
43
MDS
44
35 27 26 25 24 23 21 17 15 14 12 8 81 78
20 7 8 9 11 10 16 38 85 84 17 6 19 40
C176
43 TEL BAL ADJ
21 APC2
22 APC1
MDS MUTE
23 SPST
Q3
63 XTAL
X2
12.288MHz
65 XTXAL
30 68 31 32 47 48 87 88 86
MDP
CN7
1 2 3 4 5 6 7 8
IC1
LOUT1
97
LPF LOUT2
104
DAC
PCMD
88
PCMDI
89
LRCK
86
BCK
90
DRAM SRAM
IC6 IC4
D0-3
DQ1-4 DQ1-3
IO4-8
VIBRATION
A0-10
MEMORY
CONTROLLER/
A0-10 A0-16
COMPRESSION
EXPANDER
XRAS
113 5 RAS
XWE
CSI
114 4 WE 30
XCAS
119 23 CAS OE 32
XOE
120 22 WE 5
OE
XTAI 93
X1
16.934MHz
BUFF
XTAO
94
IC15
9
XRDE
BUFF
IC10
4 81 80
DECXRES 2
DECSTBY 3
72
DECINT
CD SYSTEM CONTROL
94
NC
IC11
RSTX 59
RF+5V
15 70 74 76 77 78 91 92
BU+3V
22 22
AUDIO INTERFACE
IC5
M3
LOADING
SDIO
MOTOR
12
SDD
9 AUDIO
LRCKIA
I/F
14
D2,4-7
BCKIA
13
PROM
SRAM
XRAM
I/F
YRAM
SW4
16
B
17
43 CROM
SW1
OPEN/CLOSE
ERAM
62 XI
SW2
MAC
60
CKI.AKO
(OPEN END )
MICK
6
MICRO
ALU
COMP.
MIDIO SW3
I/F
5
(CLOSE END)
BUS
1 RESET
SWITCH
19 STANBY
IC14
39
PO7
LEVEL
SHIFT
IC13
B+ (REF+2V)
2V REG
(IC3)
IC7
2.5V REG B+ (REF+2.5V)
IC12 (IC5)
CN6
L-CH
3
R-CH
1
MOTOR+ 26
M
MOTOR- 27
LED ON 30
A-ATT 6
19
CD ON
LINK OFF
12
UNI SO 17
UNI SI 16
T0
UNI SLK
18
MAIN
BUS ON 14
BOARD
BU IN 13
A
(Page 24)
EJECT KEY
29
OPEN END
10
CLOSE END
11
SYS RESET 15
• Signal path
: CD