Sony SCD-XB770 Service Manual ▷ View online
SCD-XB770
46
46
5-21. PRINTED WIRING BOARDS – POWER/TRANS Boards –
•
See page 31 for Circuit Boards Location.
D901
A-6
D902
A-6
D903
B-6
D904
C-6
D905
C-6
D906
C-6
D907
C-5
D909
D-5
D910
D-5
D911
E-5
D912
D-5
D913
E-5
D914
E-5
D915
E-5
D916
E-5
D917
E-6
Ref. No.
Location
Ref. No.
Location
D918
E-6
D919
E-6
D920
E-6
D921
D-2
D922
D-1
D923
B-2
IC901
B-3
IC902
B-5
IC903
A-4
IC904
D-3
IC905
E-3
IC906
C-4
Q921
D-1
• Semiconductor Location
POWER BOARD
9
1
1
1
E
C
B
3
10
G
H
AUDIO
BOARD
CN301
AUDIO
BOARD
CN306
E
MAIN
BOARD
CN707
J
DISPLAY
BOARD
CNP802
1
3
1
3
1
3
1
3
1
3
(CHASSIS)
3
1
8
1
1-681-005-
11
(11)
1
3
2
1
2
1
CN991
L901
LINE
FILTER
AC IN
T902
POWER
TRANSFORMER
*
T901
POWER
TRANSFORMER
*
*
NOT REPLACEABLE:
BUILT IN TRANSFORMER
1-681-004-
11
(11)
TRANS BOARD
AC SW BOARD
POWER
S991
1-681-007-
11
(11)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
11
12
2
1
(Page 43)
(Page 43)
(Page 34)
(Page 44)
SCD-XB770
47
47
L908
R924
R923
D922
R925
R921
D921
C926
C916
C917
R926
C915
C905
EB901
IC904
C930
C914
C904
C924
R957
C910
IC905
IC906
C922
C921
C907
C906
IC902
IC901
IC903
C919
D923
C918
C902
D904
D903
D902
C901
D901
D905
C929
R956
C971
L904
C993
L905
C991
CN905
CN904
CN991
CNP995
T901
T902
C995
L901
C996
S991
C997
CN994
CN993
C976
D917
D919
D920
D918
C923
R954
C975
C978
D914
D915
D916
D913
Q921
C912
C911
R927
D906
D907
C927
C913
C920
D909
D910
D911
D912
R922
CNP906
CNP901
L906
L907
C977
C974
CNP902
CN992
N.F
100
100
UDZS-TE-17-9.1B
39k
3.3k
UDZ-TE
-17-33B
10
50V
10
50V
0.1
63V
63V
330k
4700
16V
10000
25V
BA033T
100000p
6800
6.3V
6.3V
10000
16V
6800
10V
33
0.1
63V
63V
BA12T
BA05T
0.033
100V
0.033
100V
220
63V
63V
330
63V
63V
M5F7907L
M5F7807L
M5F7805L
470
63V
63V
EC10QS04-
TE12L5
0.022
100V
2200
25V
EC10QS04-
TE12L5
EC10QS04-
TE12L5
EC10QS04-
TE12L5
3300
25V
EC10QS04-
TE12L5
EC10QS04-
TE12L5
100
10V
10V
820
0.01
100V
100V
N.F
0.001
N.F
0.001
3P
10P
2P
2P
10000p
250V
10000p
250V
10000p
250V
8P
3P
0.047
EC10DS2TE12L
EC10DS2TE12L
EC10DS2TE12L
EC10DS2TE12L
0.1
63V
63V
33
0.1
63V
63V
0.1
63V
63V
EC10QS04
-TE12L5
EC10QS04
-TE12L5
EC10QS04
-TE12L5
EC10QS04
-TE12L5
2SB1241TV2Q
470
63V
63V
470
63V
63V
EC10QS04
-TE12L5
UDZ-TE-17-2.7B
22000p
0.022
100V
0.022
100V
EC10QS04
-TE12L5
EC10QS04
-TE12L5
EC10QS04
-TE12L5
EC10QS04
-TE12L5
3.3k
8P
3P
0.1
63V
63V
0.1
63V
63V
9P
2P
F1
F2
M+12V
F1
F2
AGND
-33V
A+UR
A-UR
D+5V
D-GND
M-GND
A+5V
A-GND
A+3.3V
A-GND
D+3.3V
D-GND
A+7V
A-7V
DAC+5V
DACGND
(CHASSIS)
POWER MUTE
HP GND
TRANSFORMER
POWER
TRANSFORMER
POWER
LINE
FILTER
AC IN
POWER
* NOT REPLACEABLE:
BUILT IN TRANSFORMER
F1
F2
-33V REGULATOR
+12V REGULATOR
+3.3V REGULATOR
O
G
I
O
G
I
O
G
I
+5V REGULATOR
O
G
I
+5V REGULATOR
O
G
I
+7V REGULATOR
-7V REGULATOR
O
G
I
5-22. SCHEMATIC DIAGRAM – POWER/TRANS Boards –
(Page 45)
(Page 39)
(Page 41)
(Page 41)
SCD-XB770
48
48
2.7 Vp-p
29.5 ns
6.3 Vp-p
29.5 ns
Approx.
1.2 Vp-p
1.2 Vp-p
Approx.
1.1 Vp-p
1.1 Vp-p
5.4 Vp-p
1.4
µ
s
Approx.
1.3 Vp-p
1.3 Vp-p
Approx.
100 mVp-p
100 mVp-p
1.8 Vp-p
7.6
µ
s
3.4 Vp-p
136
µ
s
Approx.
1.4 Vp-p
1.4 Vp-p
Approx.
380 mVp-p
380 mVp-p
Approx.
280 mVp-p
280 mVp-p
Approx.
420 mVp-p
420 mVp-p
Approx.
320 mVp-p
320 mVp-p
•
Waveforms
– RF Board –
1
IC001
el
(TE) (SACD Play mode)
3
IC001
tj
(RFAC) (SACD Play mode)
1
IC001
el
(TE) (CD Play mode)
2
IC509
wg
(MDP) (CD Play mode)
2
IC001
r;
(FE) (SACD Play mode)
3
IC001
tj
(RFAC) (CD Play mode)
3
IC509
el
(FE), IC901
yj
(FE/PI)
(SACD Play mode)
2
IC001
r;
(FE) (CD Play mode)
Approx.
1.5 Vp-p
1.5 Vp-p
– MAIN Board –
1
IC509
0
(WFCK), IC701
<zbz
(WFCK)
3
IC509
el
(FE), IC901
yj
(FE/PI)
(CD Play mode)
Approx.
80 mVp-p
80 mVp-p
3.2 Vp-p
29.5 ns
3.4 Vp-p
472 ns
5.3 Vp-p
236 ns
Approx.
1.2 Vp-p
1.2 Vp-p
Approx.
80 mVp-p
80 mVp-p
Approx.
100 mVp-p
100 mVp-p
4
IC509
ra
(TE), IC901
yg
(TE)
(SACD Play mode)
7
IC509
yj
(BCK), IC701
<zb,
(BCLK)
(CD Play mode)
4
IC509
ra
(TE), IC901
yg
(TE)
(CD Play mode)
qa
IC701
<zzm
(RFIN) (CD Play mode)
5
IC509
t;
(RFAC) (SACD Play mode)
8
IC509
ua
(XTAI)
qs
IC701
<znm
(XTAL)
5
IC509
t;
(RFAC) (CD Play mode)
0
IC701
rk
(XDCK)
qf
IC801
qa
(MCKI)
2.6 Vp-p
29.5 ns
qa
IC701
<zzm
(RFIN) (SACD Play mode)
qd
IC701
<zm/
(XTA1)
6
IC509
yg
(LRCK), IC701
<znc
(LRCK)
(CD Play mode)
3.4 Vp-p
22.7
µ
s
9
IC509
i;
(EXCK), IC701
<zvm
(EXCK)
49
SCD-XB770
2.2 Vp-p
88.6 ns
3.5 Vp-p
22.7
µ
s
4.5 Vp-p
29.5 ns
3.4 Vp-p
354 ns
1.6 Vp-p
50 ns
4.4 Vp-p
29.5 ns
3.4 Vp-p
177 ns
qg
IC801
tl
(BCKAI)
w;
IC901
ra
(EXTAL)
qh
IC801
ya
(PHREFI)
wh
IC803
of
(BCLK) (CD Play mode)
qj
IC811
8
wa
IC803
wk
(FS128)
qk
IC811
0
3.5 Vp-p
354 ns
4.3 Vp-p
29.5 ns
ql
IC811
qs
ws
IC803
e;
(FS64)
3.5 Vp-p
177 ns
wf
IC803
ik
(MCKI)
3.2 Vp-p
29.5 ns
wd
IC803
ig
(DVCKI)
3.4 Vp-p
472 ns
wg
IC803
o;
(LRCK) (CD Play mode)
3.4 Vp-p
22.7
µ
s
wj
IC803
og
(LRCKI) (CD Play mode)
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