Sony CFD-RG880CP Service Manual page 2

7-1. BLOCK DIAGRAM – CD Section –
A A
C C
B B
D D
E E
F F
LD POWER
LD LD
CONTROLLER
Q701
PD MD
VR
VC
VC
OPTICAL PICK-UP
BLOCK
(KSM-213CDP)
TD+
TRACKING
TD–
COIL
FD+
FOCUS
FD–
COIL
–
+ SL+
M M
M702
SL–
(SLED)
– +
M M SP+
M701
SP–
(SPINDLE)
S701
(LIMIT)
SW2
PUSH
OPEN/
CLOSE
CFD-RG880CP
SECTION 7
DIAGRAMS
RF OUT
2 1
A IN
5
SYNCHRONIZATION
DETECTION
C IN
EFM DEMODULATION
6
B IN
7
D IN
8
E IN
13
F IN
14
SERVO
CONTROL
LDO
18
APC
LDS
19
VREF
VC 11
23 22 24 25
TRACKING
24 25
COIL
23
DRIVE
FOCUS
19 18
COIL
20
DRIVE
SLED
5 4
MOTOR
6
DRIVE
SPINDLE
10 11
MOTOR
9
DRIVE
2
MUTE
SLED/SPINDLE
VREF
MOTOR DRIVER,
27 VC
TRACKING/FOCUS
COIL DRIVER
IC703
40
87 I-CD LID
LCHO
76
8FS
DIGITAL
FILTER
&
1-bit DAC RCHO
78
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
MCU I/F
PCMDATA 64
PCMBCK 63
PCMLRSY 62
CLOCK
PCMREQ 65
GENERATOR
STDATA 56
STCK 55
STREQ 54
32 47 43 44 45 46
73 72
X701
16.9344MHz
D DO
D DI
D CL
D CE
D RESB
93 94 8 6 7 91 92 100
SYSTEM CONTROL
IC801 (1/4)
25 25
MAIN
A
CD L-CH
SECTION
(Page 27)
RCH
USB I/F
IC702
26 P05/AN5/CK0/SDAT CF1 6
27 P06/AN6/T60
28 P07/AN7/T70
CF2 7
32 P23/INT4/SI4/WR
31 P22/INT4/SO4/RD
33 P24/INT5/INT7/SCK4
46 P70/INT0/TOLCP/AN8
UHD+ 38
UHD– 37
10 P11/SI
9 P10/SO
11 P12/SCK
15 P16/T1PWML/DE
2 RES
44 P31/URX1
45 P30/UTX1
47 P71/INT1/TOHCP/AN9
VBUS +5V
VBUS
CONTROL
+5V
IC704
99 98 • R-CH is omitted due to same as L-CH.
• Signal Path
: CD
: USB
CFD-RG880CP
X702
12MHz
J1001
D+
D–
(USB)