Ic Block Diagrams - Sony WX-7700MDX Service Manual

• IC Block Diagrams

– SERVO (CD) Board –
IC1 µPD63711GC-8EU
75 74 73 72
EFM
COMPARATOR
EFM
AGCI 76
FEOFS
TEOFS
RFO 77
EQ2 78
EQ1 79
RF– 80
A. GND 81
A 82
C 83
RF AMP
BLOCK
B 84
D 85
F 86
EFM
E 87
A. VDD 88
REFOUT 89
SWITCH
FE– 90
DEFECT
FEO 91
FOK
TE– 92
A3T
TEO 93
MIRR
TE2 94
FEO
TEC 95
TEO
A. GND 96
PD 97
COMPARATOR
LD 98
PN 99
MICROCOMPUTER INTERFACE
A. VDD 100
1 2 3 4
71 70 69 68 67 66 65 64 63
D/A CONVERTER
AUTO GAIN FD/TD/SD/MD
CONTROL CONTROL
ADDER
SVDRAM
MULTI-
SVCRAM
PLIER
ROM
SVROM
DECODER
CLV
PROCESSOR
DEFECT
COMPARATOR
RFENV
MIRENV
TRACKING
RESISTOR
FOCUS
RESISTOR
5 6 7 8 9 10
62 61 60 59 58 57
MEMORY 16k
PROCESSOR SRAM
EFM DEMODULATOR
TIMING
GENERATOR
D/A INTERFACE
CIRCUIT
DE-EMPHASIS
CIRCUIT
8 TIMES OVER SAMPLING
DIGITAL FILTER
NOISE
SHAVER
OUTPUT
BUFFER
SCF
11 12 13 14 15 16 17 18 19
WX-7700MDX
56 55 54 53 52 51
MICROCOMPUTER
INTERFACE
CD-TEXT
DECODER
SUBCODE
PROCESSOR
DIGITAL PLL
DIGITAL
AUDIO
INTERFACE
NOISE
SHAVER
OUTPUT
BUFFER
OSC
20 21 22 23 24 25
50 C2D3
49 C2D2
48 C2D1
47 C1D2
46 C1D1
45 D. GND
44 PLCK
43 MIRR/WFCK
42 RFCK
41 LOCK
40 D. VDD
39 LIMIT
38 C16M
37 D. GND
36 TX
35 HOLD/WDCK
34 LRCK
33
LRCKIN
32 SCKO
31 SCKIN
30 DOUT
29 DIN
28 FLAG
27 EMPH
26 D. VDD
55