Sony Cd Walkman D-E880 Service Manual page 3

5-1. BLOCK DIAGRAM – MAIN Section (1/2) –
DETECTOR
A A
B B
RF RF
E E
F F
VCC
OPTICAL PICK-UP BLOCK
DAX-22G (US)
DAX-22E (EXCEPT US)
LASER DIODE
PD
A
(Page 13) PD LD
LD
B
(Page 13)
31
M901 M
(SLED) 29
35
(FOCUS) 33
2-AXIS
DEVICE
27
(TRACKING) 25
U1
24 +
V1
23 +
W1
22 +
M902
(SPINDLE)
COM
25
U
14
V
V
16 PREDRIVER
U
W
W
18
VG
VG
C
20
(Page 13)
• SIGNAL PATH
: CD PLAY (ANALOG OUT)
: CD PLAY (OPTICAL OUT)
05
SECTION 5
DIAGRAMS
FOCUS/TRACKING COIL DRIVER
SLED MOTOR DRIVER
IC401 (2/2)
FO2 FI2
39
RO2 RI2
40
FO1 FI1
CONTROLLER, 37
RO1 RI1
PREDRIVER
38
FO3 FI3
16
RO3 FI3
17
SPINDLE MOTOR DRIVER
IC402
SYNC
2
PWM
3
ROTATION MODE
POL
DETECTOR CONTROL 4
FG
BEMF 1
SEPARATOR
FEEDBACK
PATTERN
DATA
GENERATOR
7
CLK
9
OR
LTCH
CPU
8
INTERFACE
OEB
PHASE/PWM 12
DECODER
6
– 9 –
A WDCK
62
WFCK
B
61
RFDC MDS
58
RFAC
71 XTAO
XTAI
E
59
F RFAC
60
MDP
XSOE
SWITCHING
SENS
Q604
R4M
XLAT
(EXCEPT US:TYPE A)
CLOK
SCOR
SDTO
SFDR
46
SRDR
47
FFDR
50
FRDR
51
TFDR
48
TRDR
49
RFDC
C176
42
BUFFER
MDP
IC403
43
MDS
44
17
25
27 FG
DRVLT
45
41 XSPDOE
42 39
S804
VCPU 2V
HOLD
HOLD
OPTICAL
OFF
PICK-UP
VDD 2V
POWER ON
SWITCH
Q411
RF AMP,
DIGITAL SIGNAL PROCESSOR,
DIGITAL SERVO PROCESSOR,
D-RAM CONTROLLER
IC601
DIGITAL DOUT
85
OUT
D0-D3
SIGNAL
PROCESSOR
BLOCK
A0-A10
MEMORY
CONTROLLER,
BUS BOOST
BLOCK
XRAS
113
XWE
114
XCAS
119
XOE
120
XTAI
93
XTAO
94
LOUT1
97
LPF
LOUT2
104
FOK
FFDR
E FRDR
SERVO
F TFDR
BLOCK
B
TRDR
A SFDR
SRDR
AMUTE
13
XRST
21
23 26 25 24 30 28 83 78 35
12 11 10 43 44 35 26 3
SYSTEM CONTROLLER
IC801 (1/3)
21 79
S801
(OPEN)
– 10 –
D-E880/EJ815
DOUT
I
(Page 11)
D-RAM
IC602
5
XRAS
4 XWE
23 XCAS
22 XOE
X601
16.9MHz
J (Page 11)
AMUTE
L
(Page 11)
XRST
K
(Page 11)
R4M
M (Page 11)
SYNC
D
(Page 13)
RST
E
(Page 13)
SDTO
F
(Page 13)
SCK
G
(Page 13)