Sony SCD-XB780 Service Manual ▷ View online
SCD-XB780
21
21
53 55 52 54 12
50
49
48
24
75
100
25
4 6 5 7 15 79 80 76 77
10 11 13
34 35 36 9 26
33 37
71
3
2
138
68
64
17
14
65
67
66
71
72
69
16
43 44
64
58
85 84 12 22 23
117
111
7 8
89 – 96
14 – 21
A0 – A7
D0 – D7
142
144
140
135
147
148
150
151
137
153 146 155 163 158 160
164
26
46
51
54
62
63
49
48
53
23
162
29
44, 41, 39, 35,
32, 30, 27, 24
31, 34, 37,
40, 43, 45
59, 56, 60
157
159
93
92
94
76
78
95
33
34
170
17
18
35
21 – 24, 27 – 32
79, 80, 82 – 87,
89, 91
41 – 44, 46 – 49
96, 97, 99, 101,
102, 104 – 106
2 – 5, 7 – 10
5, 7, 9 – 14
172 – 176, 1, 2, 4
66 – 69, 71,
73 – 75
169
167
109
107
16
21
20
19
18
17
113 114 115
2
FILTER
ASYMMETRY
CORRECTOR
EFM
DEMODULATOR
32K
RAM
D/A
DIGITAL
INTERFACE
CLOCK
GENERATOR
ERROR
CORRECTOR
DIGITAL
OUT
SUBCODE
PROCESSOR
DIGITAL CLV
PROCESSOR
PROCESSOR
CPU INTERFACE
DIGITAL PLL
INTERNAL BUS
C4M
XTSL
DIGITAL SIGNAL
PROCESSOR
IC509 (2/2)
RFAC
RFAC
ASYI
ASYO
ASYO
FILO
PCO
XPCK
FILI
CLTV
D+3.3V
XTAO
XTAI
PCMD
WDCK
DOUT
XRST
C2PO
LRCK
BCK
MDAT
LRCK
BCLK
XRST DVD
WAVE SHAPER
Q302
OPTICAL
TRANSCEIVER
IC309
18
17
19
20
DIGITAL (CD)
OUT OPTICAL
DIGITAL (CD)
OUT COAXIAL
J303
(Page 22)
(Page 22)
(Page 23)
(Page 22)
21
(Page 22)
SD0 – SD7
SDEF
22
(Page 22)
23
(Page 22)
24
(Page 22)
25
(Page 22)
RFAC
768FS (33.8688MHz)
MDAT, BCLK, LRCK
XRST CD, MUTE CD, XRST DVD
HOST INTERFACE
DLRC
DDAT
MA10/MNT1
XMOE
XCAS
MA0 – MA9
MDB8, MDB9,
MDBA – MDBF
MDB0 – MDB7
DASYO
DASYI
ASF1
ASF2
XRAS
XMWR
MA11/MNT2
DBCK
XSAK,
XSHD,
XDCK,
XDCK,
XSRQ
WPK
XTAL
HDB0 –
HDB7
HDB7
HDB8
HDB9
HDBA –
HDBF
HDBF
HA0 –
HA2
HA2
XSAK
XHRS
XSRQ
XDCK
XSHD
HCS1
HCS0
HINT
REDY
• SIGNAL PATH
: SACD PLAY
: CD PLAY (ANALOG)
: CD PLAY (DIGITAL OUT)
ATAPI
PACKET FIFO
ATAPI
REGISTER
DMA
FIFO
DAC
INTERFACE
CD ESP
OE
UCAS
WE
RAS
LCAS
A0 – A9
I/O8 – I/O15
I/O0 – I/O7
D-RAM
IC706
AUTHENTICATION
CPU
INTERFACE,
DMA
CONTROLLER
XTL1
XTL2
XTAL
APEO
GFS
XWAIT
XRD
XWR
XCS
XINT0
XINT0
XINT1
DATA BUS
ADDRESS BUS
DATA BUS
ADDRESS BUS
INTEGRATOR
IC703 (1/2)
16
(Page 22)
15
(Page 22)
14
(Page 22)
10
(Page 20)
5
(Page 20)
XHRD, XHWR
A0
D0 – D7
SPDA, F JMP1/2
LDON
11
(Page 20)
SPIN
F JMP1
SPDA
F JMP2
TO SERVO AUTO
SEQUENCER
LOCK
MDP
DATA
SQCK
WFCK
EMPH
MUTE
GFS
RFCK
SQSO
EXCK
SBSO
SCOR
SENS
XLAT
CLOK
LOCK CD
DATA CD
CLOK CD
XLAT CD
SENS CD
SCOR CD
SQSO CD
SQCK CD
GFS CD
3
DOCTRL
LD ON
SPDA
APDO
JITTER
GFS DVD
XRD
XWR
XCS DVD
INIT0 DVD
INIT1 DVD
XHRD
XHWR
XCS
XINT0
XINT1
FCS JMP1
FCS JMP2
SPINDLE MOTOR DRIVE
IC708 (2/2)
SYNC
CONTROL
SUBCODE
DEINTERLEAVE & ECC
DESCRAMBLE
BUFFER
IC708 (1/2)
FFM
DEMODULATOR
RF
ASSYMMETRY
PLL
FILTER
ANALOG
MIXER
SPINDLE
CONRTOL
CD DSP INTERFACE
MDSOUT
MDIN1
MDPOUT
CLVS
SPO
MDIN2
WFCK
SCOR
SBIN
EXCK
XRCI
GSCOR
C2PO
LRCK
BCLK
MDAT
XRST
WFCK
SCOR
SBSO
EXCK
A0 – A7
D0 – D7
SACD DECODER
IC701
RFIN
CPU
IC901 (1/3)
63
MD2
MAIN DATA ECC & EDC
DVD-ROM CD-ROM
59
1
(Page 20)
SP ERR
SP ERR
DMA CONTROLLER
(PRIORITY RESOLVE & SEQUENCER)
(Page 20)
XRST CD
MUTE CD
XHRD
XHWR
XCS
XINT0
XINT0
XINT1
XSAK
XSRQ
XDCK
XSHD
DVC BUFFER
IC703 (2/2)
DVC
(+1.65V)
A+3.3V
5-2.
BLOCK DIAGRAM – SERVO Section –
SCD-XB780
22
22
5-3.
BLOCK DIAGRAM – MAIN Section –
11 – 18
DQ0 – DQ7
169 – 176
2 – 9
B1 –
B8
B8
A1 –
A8
A8
2
18
3
17
4
5
15
16
64
LEVEL SHIFT
IC814
164
11
12
11
2
13
1
3
16
17
15
34
D-RAM
IC808
LEVEL SHIFT
IC813
LEVEL SHIFT
IC812
DSD DECODER
IC801
3-MULTIPLYING
IC811
21
(Page 21)
3
(Page 20)
8
(Page 20)
4
(Page 20)
22
(Page 21)
23
(Page 21)
24
(Page 21)
17
(Page 21)
25
(Page 21)
18
(Page 21)
20
(Page 21)
74
83
77
74
25
29
72
65
67
SDATA
SDEN
SCLK
FOK
MIRR
COUT
SCLK
TE
FE
10
4
9
5
8
6
6
4
3
2
10
7
48
49
50
47
51
27
11
52
35
78
79
38
EEPROM
IC903
5
6
SDA
SCL
RESET SIGNAL
GENERATOR
IC905
9
10
11
24
25
31
32
768FS (33.8688MHz)
XTAL
XSAK
XSHD
XDCK
XSRQ
SDEF
SD0 – SD7
SDATA, SCLK, SDEN
FOK, MIRR, COUT, SCLK
TE, FE, PI
XRST CD, MUTE CD, XRST DVD
12 – 16, 19 – 21
DATA BUS
27
(Page 23)
14
(Page 21)
15
(Page 21)
16
(Page 21)
45
46
13
(Page 20)
• SIGNAL PATH
: SACD PLAY
A1
A2
A3
B1
B2
B3
A4
B4
A0 – A11
CAS
RAS
WE
CKE
DQ0 – DQ7
A0 – A11
SD0 – SD7
SDCK
SDEF
XSAK
XSHD
XSRQ
WCK
XCAS
XRAS
XWE
DCKE
DSAL
MCKI
DSALS
MSDATO
MSDATI
MSCK
XMSLAT
SMUTE
MSREADY
SDATAL
SDATALS
DATA RF
CLK RF
FOK CD
MIRR RF
COUT CD
SCLK CD
TE
FE
SIN DSD
SOUT DSD
SCK DSD
XLAT DSD
MUTE DSD
RDY DSD
CPU
IC901 (2/3)
XCS IO
XDIS IO
EEPSIO
EEPSCL
XRST
SDEN
XCS
RST
RST DSD
RST DVD
RST CD
XRD
XWR
D0 – D7
LOAD IN
LOAD OUT
PROGRAMMABLE
LOGIC DEVICE
IC904
XRST CD
SDATAL, SDATAR, SDATALS, SDATARS,
SDATAC, SDATALF, 64FS
D0 – D7
A0
XHRD, XHWR
LOAD IN/OUT
66
PI
PI
98
97
LATCH DF
INIT DF
22
A
166
165
167
168
XASK, XSHD,
XDCK, XSRQ
XDCK, XSRQ
126 WARFI
REAC
WPK
2, 3, 5, 6,
8, 9, 11, 12
139 – 136,
134 – 131
21 – 24, 27 – 32,
20, 19
162 – 159, 157 – 154,
152, 151, 149, 148
144
145
143
142
35
CLK
DCLK
141
66
DSAR
SDATAR
76
DSARS
SDATARS
69
DSAC
SDATAC
71
DSASW
SDATALF
61
PHREFI
64FS
59
BCKAI
128FS
26
(Page 23)
34
MULTI
30
(Page 23)
3
4
FS64
FS128
5
YO
64FS
128FS
XHRD
XHWR
2
41
28
(Page 23)
ZEROL
ZEROR
ZEROL, ZEROR
ZEROL
ZEROR
38
37
29
(Page 23)
LMUTE
RMUTE
LMUTE, RMUTE
LMUTE
RMUTE
33
23
6
(Page 20)
DVDPDSW
CDPDSW
DVDPDSW, CDPDSW
DVDPDSW
CDPDSW
LOAD IN
LOAD OUT
40 XTAL
41 EXTAL
X901
20MHz
DATA
CLK
LATCH
INIT
32
(Page 23)
DATA, CLK,
LATCH, INIT
26
31
(Page 24)
RST DP
XRST DP
36 ISBTEST
12
(Page 20)
MUTE 2D, SP ON, MUTE LOAD
115
TEST1
XRST 9
43 ZDFR
42 ZDFL
63
ZDFL
ZDFR 65
XRST DVD
123
MULTI
1
TRKSW
7
(Page 20)
TRKSW
44
LIM SW
9
(Page 20)
LIMSW
256FS
30
31
S152
(LOADING IN)
S151
(LOADING OUT)
IN SW
OUT SW
4
MUT 2D
6
SP ON
1
MUT LOAD
MUTE 2D
73
MUTE CD
MUTE CD
SP ON
MUTE LOAD
SCD-XB780
23
23
5-4.
BLOCK DIAGRAM – AUDIO Section –
DSD1
DSD2
DSD5
DSD6
DSD7
DSD8
DBCK
SDATAL
SDATAR
SDATALS
SDATARS
SDATAC
SDATALF
64FS
DSD3
27
(Page 22)
SDATAL, SDATR,
SDATALS, SDATARS,
SDATAC, SDATALF,
64FS
SDATALS, SDATARS,
SDATAC, SDATALF,
64FS
PBCK
PLRCK
PDATA2
BCLK
LRCK
MDAT
19
(Page 21)
MDAT,
LRCK,
BCLK
LRCK,
BCLK
26
(Page 22)
256FS
• SIGNAL PATH
: SACD PLAY
: CD PLAY (ANALOG)
• R-ch is omitted due to same as L-ch.
6
5
3
4
1
2
CLOCK BUFFER
IC304
X301
11.2896MHz
28
(Page 22)
ZEROL,
ZEROR
ZEROR
ZEROL
ZEROR
DIGITAL FILTER,
D/A CONVERTER,
LOW-PASS FILTER
IC301
32
(Page 22)
DATA, CLK, LATCH, INIT
30
(Page 22)
MULTI
R-CH
R-CH
R-CH
R-CH
MUTING
Q401
MUTING
Q402
MUTING
Q403
R-CH
MUTING
Q421
MUTING
Q422
MUTING
Q441
MUTING
Q442
29
(Page 22)
LMUTE, RMUTE
MUTING
Q541
MUTING
Q542
ANALOG
LOW-PASS
FILTER
IC307
MUTING
CONTROL
SWITCH
Q303
R-CH
PHONE LEVEL
RV601
PHONES
J601
HEADPHONE
AMP
IC308 (1/2)
L
R
ANALOG
2CH OUT
J301
L
R
J302
FRONT
SUB WOOFER
CENTER
L
R
ANALOG
5.1CH OUT
R-CH
R-CH
R-CH
SURR
ANALOG
LOW-PASS
FILTER
IC305 (2/2)
ANALOG
LOW-PASS
FILTER
IC306 (2/2)
DSD
INTERFACE
DSD
FILTER
PCM
INTERFACE
ENHANCED
MULTI LEVEL
DELTA-SIGMA
MODULATOR
FUNCTION
CONTROL
MDI
MC
MS
10
VOUT3
VOUT1
9
VOUT4
11
VOUT2
31
VOUT5
30
VOUT6
29
VOUT7
28
VOUT8
XRST
DATA
CLK
INIT
LATCH
OUTPUT
AMP &
LOW-PASS
FILTER
DSD4
38
39
42
43
44
45
37
40
PDATA1
46
41
50
51
47
PCM
FILTER
ZERO
DETECT
MIX AMP
IC315 (2/2)
6
ZERO1
7
ZERO2
SYSTEM
CLOCK
33
PSCK
34
DSCK
12
2 4 3 36
D/A
CONVERTER
R-CH
LMUTE
RMUTE
MUTING
CONTROL
SWITCH
Q304
MUTING
CONTROL
SWITCH
Q301
SCD-XB780
24
24
5-5.
BLOCK DIAGRAM – DISPLAY/KEY CONTROL/POWER SUPPLY Section –
S810 – 813
AMS
L
l
S801 – 806
PUSH ENTER
S830
ROTARY
ENCODER
REMOTE
CONTROL
RECEIVER
IC802
60
KEY0
61
KEY1
62
KEY2
82
RM
57
LED DRV
53
FLOUT
54
FLCLK
56
FLCS
55 FL. DATA (DI)
54 FL. CLK (CL)
53 FLT (CE)
OSC
C815,
R801
50 OSC0
51 OSC1
52
FLRST
31
(Page 22)
XRST DP
31
S35
61 – 64, 1 – 30
45 – 32
46, 47
3G – 16G
1G, 2G
S1 – S34
CPU
IC901 (3/3)
FLUORESCENT INDICATOR TUBE DRIVER
IC801
SEGMENT
DRIVE
Q803
D803
(MULTI-CHANNEL)
LED
DRIVE
Q701, 702
GRID
DRIVE
Q801, 802
FL801
FLUORESCENT
INDICATOR
TUBE
F1
F2
RECT
D905, 906
+3.3V
DAC+5V
+3.3V
REGULATOR
IC302
+5V
REGULATOR
IC903
A+7V
+7V
REGULATOR
IC901
A+UR
RECT
D901, 902
A–7V
–7V
REGULATOR
IC902
RECT
D903, 904
A–UR
VFL–33V
FLUORESCENT INDICATOR
TUBE DRIVER
(IC801)
–33V
REGULATOR
Q921
RECT
D917 – 920
T901
POWER
TRANSFORMER
R954
D302
D301
T902
POWER
TRANSFORMER
F1
F2
D922
D+3.3V
+3.3V
REGULATOR
IC904
RECT
D909 – 912
A+3.3V
+2.5V
REGULATOR
IC702
+2.5V
+5V
REGULATOR
IC906
D+5V
A+5V
M+12V
(MOTOR DRIVE (IC512))
+12V
REGULATOR
IC905
RECT
D913 – 916
+5V
REGULATOR
IC504
+5V
(COIL/MOTOR DRIVE (IC502))
S991
POWER
LINE
FILTER
L901
(AC IN)
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