Read Sony SCD-XB780 Service Manual online
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
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