Sony SCD-XB780 Service Manual ▷ View online
45
SCD-XB780
• IC Block Diagrams
– RF Board –
– RF Board –
IC001
CXD1881AR-1
MUX
ATT
INPUT
BIAS
AGC
GCA
PROGRAMMABLE
EQUALIZER
FILTER
DIFFERENTIATOR
64 63
62 61 60 59
58
57
51
56
1
2
FULL WAVE
RECTIFER
AGC CHARGE
PUMP
+
–
+
–
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
–
–
+
–
–
+
–
–
INPUT
SEL
ATT
2
4
2
2
INPUT
IMPEDANCE
SEL
OFFSET
CANSEL
MNTR
CONTROL
SERIAL
PORT
REGISTER
4
FROM
S-PORT
4
FROM
S-PORT
INPUT
IMPEDANCE
SEL
3
FROM
S-PORT
CLAMP &
ENVELOPE
LEVEL
DAC
SIGDET
AGCO
BUFFER
55 54
53 52
50
49
OUTPUT
INHIBIT
FROM S-PORT
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
GCA
CD/DVD
4
FROM
S-PORT
3
FROM
S-PORT
MUX
3
FROM
S-PORT
GCA
3
FROM
S-PORT
3
FROM
S-PORT
EQ
VC
COMPARATOR
PHASE
DETECTOR
PHASE
DETECTOR
A+D
B+D
+
+
+
A+C
B+C
GCA
W/LPF
SUM
AMP
AMP
18 19 20
21 22
24 25
23
26
27
28 29
31
32
30
GCA
GCA
VCI FOR SERVO INPUT
VC = VPB/2
DUAL APC
LD H/L
FROM S-PORT
APC SEL
DVD/CD
TOPHOLD
GCA
TOPHOLD
GCA
41
48
47
46
45
GCA
OFFSET
CANSEL
5
FROM
S-PORT
GCA
40
GCA
OFFSET
CANSEL
6
FROM
S-PORT
3
FROM
S-PORT
GCA
GCA
CEFDB
CP/CN
LOW
IMPEDANCE
CD/DVD
SUB
GCA
MUX
GCA
LPF
GCA
LPF
39
38
37
36
OFFSET
CANSEL
PEAK/BOTTOM
HOLD
BOTTOM
ENVELOPE
INPUT
BUFFER
5
FROM
S-PORT
GCA
LPF
V25/2
TE
RST
35
34
33
FOR SERVO
OUTPUT
PH
TOP
HOLD
GCA
SEL
LINKEN
MUX
HOLDEN
+
–
+
–
COMPA-
RATOR
INTERNAL
FDGHG
HYSTERESISTER
& OFFSET
FROM S-PORT
MIRR
COMPARATOR
COMPARATOR
INPUT GAIN
FROM S-PORT
SEL
DAC
SINK CURRENT
FROM S-PORT
2
AGCO
FAST ATTACK
AGC
HOLD
BCA
DET
DET
2
FROM
S-PORT
PH
2
2
INPUT
IMPEDANCE
FROM S-PORT
44
43
42
V33 FOR
OUTPUT
BUFFER
PI
FE
TE
CE
V25
V125
V25/3
LPF ATT
POL SEL
BUFFER
CONTROL
SIGNALS
TO EACH
BLOCK
3
CE ATT
CEPOL
D
C
B
A
CD F
CD E
VPB
VC
DVDLD
CDLD
CDPD
DVDPD
LDON
VNB
MIRR
MP
MB
MIN
MEVO
MLPF
CE
SDEN
SDATA
SCLK
V33
FE
TE
PI
V25
V125
TPH
DFT
LINK
LCP
LCN
MNTR
DVDRFP
DVDRFN
A2
B2
C2
D2
CP
CN
D
C
B
A
CD D
CD C
CD B
CD A
RFDC
RFSIN
ATOP
ATON
AIN
AIP
VPA
RFAC
VNA
BYP
DIN
DIP
FNP
FNN
MEV
RX
46
SCD-XB780
IC905
M51957BFP-600C
– MAIN Board –
IC509
CXD3068Q
DOUT
LRCK
PCMD
BCK
DVDD2
ASYE
MD2
EMPH
XTSL
DVSS2
XTAI
XTAO
SQSO
SQCK
SCSY
SBSO
EXCK
SOUT
SOCK
XOLT
SE
TE
VC
TES1
TEST1
DVSS1
FRDR
FFDR
TRDR
TFDR
SRDR
SFDR
DVDD1
FSTO
SSTP
MDP
LOCK
PWMI
FOK
DFCT
DIGITAL
CLV
PROCESSOR
OSC
DIGITAL
OUT
EFM
DEMODULATOR
32K
RAM
ERROR
CORRECTOR
D/A DIGITAL
INTERFACE
MIRR, DFCT,
FOK
DETECTOR
CPU
INTERFACE
SUBCODE
PROCESSOR
SERVO
AUTO
SEQUENCER
SERVO INTERFACE
DVDD0
XRST
MUTE
D
ATA
XLA
T
CLOK
SENS
SCLK
A
TSK
WFCK
XUGF
XPCK
GFS
C2PO
SCOR
C4M
WDCK
DVSS0
COUT
MIRR
A
VDD0
IGEN
A
VSS0
ADIO
RFDC
CE
TE
A
VSS1
RF
AC
ASYI
ASYO
BIAS
A
VDD1
PCO
FILI
FILO
CL
TV
V16M
VCTL
VPCO
59 58
57 56 55 54 53 52
51 50 49 48
47 46 45 44 43 42 41
1
2
3
4
5
6
7
8 9 10 11 12 13 14 15 16 17 18 19 20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
OPERA
TIONAL
AMPLIFIER &
ANALOG SWITCH
A/D
CONVER
TER
FOCUS
PWM
GENERATOR
TRACKING
PWM
GENERATOR
SLED
PWM
PWM
GENERATOR
FOCUS
SERVO
SERVO
DSP
TRACKING
SERVO
DSP
SLED
SERVO
DSP
ASYMMETRY
CORRECTOR
DIGITAL
PLL
CLOCK
GENERATOR
60
+
–
4
NC
INPUT
NC
GND
1.25V
1 2
3
5
6
7
8
DELAY
CAPACITOR
OUTPUT
SUPPLY
VOLTAGE
NC
47
SCD-XB780
IC701
CXD1882R-1
133
134
135
136
137
138
139
140
141
142
143
144
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
165
166
164
167
168
169
170
172
173
174
175
176
1
171
145
SPINDLE
CONTROL
CD-
DSP
I/F
DAC
I/F
132131130129128
123122
119118
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21
23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44
22
CPU IF, DMA CONTROLLER
121120
117116115114113112111110109108107
106105104103102101100 99 98 97 96
95 94 93 92 91 90 89
88
87
126125
124
PLL
VCO
127
SYNC DETECT
EFM+
DEMODULATOR
SELECTOR ID
DETECT
SUBCODE
DEINTERLEAVE & ECC
SYNC
CONTROL
ATAPI
REGISTERS
DMA
CONTROLLER
PRIORITY RESOLVE
& SEQUENSOR
DVD
MAIN DATA
ECC & EDC
CD-ROM
MAIN DATA
ECC & EDC
ATAPI
PACKET
FIFO
86
85
84
83
82
81
80
79
78
75
74
73
72
71
70
69
68
67
66
77
76
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
DESCRAMBLE
RF ASYMMETRY
HOST I/F
ATAPI
OR
DMA
OR
VIDEO
DMA
FIFO
AUTHENTICATION
INTERNAL
CLOCK
CD ESP
GNDA2
GNDA1
SPO
VC2
MDIN2
MDIN1
VCCA1
CLVS
VSS
MDSOUT
VDD
MDPOUT
GSCOR
EXCK
SBIN
VSS
SCOR
WFCK
VDD5V
XRCI
VDDS
C2PO
VDD
DBCK
BCLK
DDAT
MDAT
VSS
DLRC
LRCK
IFS0
IFS1
XRST
XTAL
VSS
XTL2
XTL1
D0
D1
D2
D3
D4
VDD
DFCT/LINK
D5
D6
VSS
D7
A0
VDD
A1
VDD5V
A2
A3
A4
A5
A6
A7
VSS
XWAIT
XRD
XWR
XCS
XINT0
XINT1
XHRS
HDB7
VSS
HDB8
HDB6
VDDS
HDB9
HDB5
HDBA
HDB4
VSS
HDBB
HDB3
VDD
HDBC
VDDS
HDB2
HDBD
HDB1
VSS
HDBE
HDB0
VDD
VDD
MA7
MA6
MA5
MA4
MA3
MA2
VSS
MA1
MA0
XRAS
MDB7
MDB6
MDB5
VDD5V
MDB4
VSS
MDB3
MDB2
MDB1
MDB0
VDD
XMWR
DASP
VDD
HCS1
HCS0
VSS
HA2
HA0
VDDS
XPDI
HA1
XS16
HINT
XHAC
VSS
REDY
VDD
XHRD
XHWR
VDDS
HDRQ
HDBF
FDO
PDHVCC
PDO
VCCA2
VCCA3
GNDA3
GNDA4
VCCA4
VCCA5
VCOIN
VCOR1
RFIN
RFDCC
DASYI
ASF2
ASF1
GNDA5
DASYO
VDD
APEO
VSS
GFS
MDBF
MDBE
MDBD
VDD5V
MDBC
MDBB
VDD
MDBA
VSS
MDB9
MDB8
XCAS
XMOE
MA11/MNT2
MA10/MNT1
MA9/MNT0
VSS
MA8
LPF2
VC1
LPF5
LPF1
48
SCD-XB780
– AUDIO Board –
IC301
CXD9709Q
FUNCTION
CONTROL
PCM
FILTER
44
45
46
47
48
17
16
15
DSD
FILTER
14
DSD7
DSD8
42
43
DSD5
DSD6
40
41
DSD3
DSD4
PDATA1
PDATA2
PDATA3
49
50
51
PDATA4
PBCK
PLRCK
52
VDD1
VCOM1
VCC1
VCC2
AGND2
20
19
18 VCC3
AGND3
VCC4
23
22
21 AGND4
VCC5
AGND5
25
24 VCC6
VCC7
PCM
INTERFACE
DSD
INTERFACE
38
DSD1
39
DSD2
36
RST
35
VDD2
32
DGND2
37
DBCK
33
PSCK
34
DSCK
5
MDO
4
MC
3
MS
2
MDI
1
DGND1
8
ZERO38
7
ZERO2
6
ZERO1
9
VOUT4
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
31
VOUT5
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
30
VOUT6
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
29
VOUT7
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
28
VOUT8
27
AGND6
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
10
VOUT3
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
11
VOUT2
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
12
VOUT1
13
AGND1
OUTPUT AMP &
LOW-PASS FILTER
D/A
CONVERTER
ZERO
DETECT
SYSTEM
CLOCK
SYSTEM
CLOCK
ENHANCED
MULTI-LEVEL
DELTA-SIGMA
MODULATOR
26 VCOM2
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