Sony XS-AW81P5 Service Manual ▷ View online
XS-AW81P5
9
9
Note on Schematic Diagram:
•
All capacitors are in
µ
F unless otherwise noted. (p: PF)
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
•
All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
•
Power voltage is dc 14.4V and fed with regulated dc power
supply from BATT and REMOTE IN cords.
supply from BATT and REMOTE IN cords.
•
Voltages and Waveforms are dc with respect to ground
under no-signal conditions.
no mark : Power on
under no-signal conditions.
no mark : Power on
•
Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
•
Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
Voltage variations may be noted due to normal produc-
tion tolerances.
•
Circled numbers refer to waveforms.
•
Signal path.
F
: AUDIO
Note on Printed Wiring Board:
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
: Pattern from the side which enables seeing.
• Waveforms
IC901
9
(E1),
q;
(E2)
5 V/DIV, 20
µ
s/DIV
2
Q908, 909 (Drain)
1
10 V/DIV, 20
µ
s/DIV
IN901
µ
PC494GS
•
IC Block Diagram
SECTION 3
DIAGRAMS
•
Note for Printed Wiring Boards and Schematic Diagrams
40.8
µ
s
12.4 Vp-p
40.8
µ
s
26.8 Vp-p
4
1
2
3
5
6
7 8
9
10
16 15
14
13
12 11
ERROR
NON INV IN
INV IN
REF OUT
OUT CONTROL
VCC
C2
E2
E1
NON INV IN
INV IN
FEED BACK
DEAD TIME
CONTROL
CT
RT
GND
C1
0.1V
REG.
REF.
OSC
ERROR
XS-AW81P5
10
10
1
IC802
IC803
IC801
4
8
5
1
IC902
1
2
4
3
4
8
5
1
4
8
5
IC901
IC903
1
1
8
16
9
2
4
3
E
B
C
E
B
C
E
E
E
E
C
B
C
B
B
C
C
B
C
C
B
R129
B
C
E
B
C
E
E
B
B
E
C
C
R810
B
E
E
A
A
A
K
K
K
2B
E
1B
2C
1C
1B
E
2B
1C
2C
B
B
B
E
E
C
C
E
B
C
C
B
E
C
B
E
C
C
E
C
B
B
C
E
E
B
B
E
C
C
G
D
S
G
D
S
AMP BOARD
1-863-186-
11
(11)
(CHASSIS)
SP101
–
+
R141
(CHASSIS)
(CHASSIS)
(CHASSIS)
(CHASSIS)
E
B
C
E
B
C
A
K
LPF
LEVEL
PHASE
–
+
CNJ801
INPUT
R
L
1
5
6
11
B
B
E
E
C
B
E
C
C
K
A
A
RED
T901
DC/DC
CONVERTER
A
K
A
K
A
K
A
B
C
D
E
F
G
1
2
3
4
5
6
7
8
POWER/
PROTECT
LD901
6
1
YEL
RED
7
2
BLK
8
3
CNP802
TO
CNJ802
BLK
BLK/WHT
REMOTE LEVEL
CONTROLLER
9
BLU/WHT
10
4
GRY/BLK
11
5
WHT/BLK
GRY
WHT
+B 12V
GND
REMOTE INPUT
HIGH LEVEL INPUT R (–)
HIGH LEVEL INPUT L (–)
HIGH LEVEL INPUT R (+)
HIGH LEVEL INPUT L (+)
3-2. PRINTED WIRING BOARD
•
Semiconductor
Location
Location
Ref. No. Location
D101
E-5
D102
B-5
D103
C-5
D801
D-5
D802
D-5
D903
E-3
D904
F-3
D907
B-1
D908
C-1
D910
D-3
D911
B-4
D912
B-4
D913
C-4
D914
C-4
IC801
G-5
IC802
F-6
IC803
E-6
IC901
D-4
IC902
D-5
IC903
C-4
LD901
E-6
Q101
D-5
Q102
C-5
Q103
C-5
Q104
C-5
Q105
C-5
Q106
C-6
Q107
C-6
Q108
C-6
Q109
C-6
Q110
C-7
Q111
D-7
Q801
D-5
Q802
D-5
Q803
D-6
Q804
D-5
Q805
D-6
Q901
E-6
Q902
F-6
Q903
E-4
Q904
E-3
Q905
F-3
Q906
C-3
Q907
C-3
Q908
C-1
Q909
D-1
Q910
C-4
Q911
C-4
Q912
D-4
Q913
C-4
Q914
C-3
XS-AW81P5
11
11
3-3. SCHEMATIC DIAGRAM
•
See page 9 for Waveforms
•
See page 9 for IC Block Diagram.
CNP101
CNP102
CNJ802
CNJ801
R807
C913
C124
R141
R815
R201
R102
R202
R103
C102
C103
C804
C109
R108
C110
IC801(1/2)
IC801(2/2)
C901
C111
R110
R109
R111
R112
C113
C902
IC802(1/2)
IC802(2/2)
C117
R115
R116
R117
R118
IC803(1/2)
IC803(2/2)
R120
R121
C114
R113
C115
R119
C118
R104
R204
C104
C204
C205
C105
R205
R105
C206
C207
R106
C108
D101
C119
Q102
R122
R123
R124
D102
R125
R126
R127
R128
C120
C121
R130
R131
R132
C122
R134
R135
Q107
R136
Q108
Q109
Q111
R137
R138
R802
Q801
R803
R804
Q802
D801
R805
D802
R806
R129
C123
Q804
R811
R812
R813
C805
C806
R814
TH902
R902
R903
R904
R905
Q913
Q914
R908
R909
R910
R911
R913
TH901
R936
R937
R938
R939
R941
R912
R917
R918
R919
R920
R922
R926
R928
R930
D910
C904
C905
C906
C907
D903
D904
C926
C927
R932
C911
C912
D907
L901
Q911
C921
C923
Q805
Q803
D914
R940
D913
R921
L902
L903
L904
R942
C908
R916
Q904
C928
R924
R929
R923
R925
R927
Q906
Q907
Q908
Q909
R810
D103
R133
C924
C916
C917
R203
D911
D912
R933
C920
R934
C922
R207
R107
C107
C106
C101
C201
C925
C116
S801
Q101
Q104
Q105
Q106
R140
Q110
SP101
C801
VR802
C112
Q912
IC903
VR801
Q902
Q901
R901
R935
LD901
R101
Q910
D908
T901
IC902
Q903
C903
R906
IC901
F901
Q905
Q103
R139
R114
R931
R915
R914
C802
1P
1P
11P
2P
2.2k
0.01
0.047
2.2
470k
1k
22k
22k
22k
4.7
50V
50V
4.7
50V
50V
1000p
33p
5.6k
1000p
BA4560F
BA4560F
0.1
1000p
1.5k
150
3.3k
4.7k
0.1
0.1
BA4560F
BA4560F
0.1
2.2k
33k
33k
1k
BA4560F
BA4560F
10k
3.3k
0.22
10k
47
16V
1.5k
1000p
43k
43k
0.22
0.22
0.22
0.22
43k
43k
1000p
1000p
5.6k
1000p
DAN202K
47
16V
2SC4207
47k
1.5k
1.5k
DAN202K
1.5k
1.5k
47k
2.2k
33p
0.1
100k
100k
100
0.1
820
270
2SA1037
6.8k
2SC3421
2SA1358
2SA1908
220
2.2
1M
2SA1037
680
10k
2SC2412
UDZS6.8B
75k
DAN202K
33k
22k
0.022
2SA1037
10k
10k
10k
1000p
47
16V
1M
1k
10k
10k
3k
2SC2412
2SA1037
220
10k
6.8k
22k
10k
10k
3.3k
47k
10k
100k
100k
1.5k
1.5k
3.3k
1k
10k
22
2.2
22
DAN202K
1000p
47
16V
22
35V
100
16V
16V
UDZS6.8B
UDZS16B
22
35V
470p
2.2
2200
16V
2200
16V
FCH08A15
2SA1358
1
50V
100
16V
16V
2SC2412
2SC2412
MTZJ33B
10k
MTZJ33B
10k
10k
1000p
3.3k
2SC2412
470
16V
16V
470
1k
470
1k
1k
2SC2412
2SC2412
FKV550N
FKV550N
10k
DAN202K
100
1000p
3300
50V
3300
50V
22k
UDZS15B
UDZS15B
3.3k
1
50V
3.3k
100
16V
16V
2.2k
2.2k
1000p
1000p
220
16V
16V
1000p
1000p
0.1
2SC3327
2SA965
2SC2235
2SD637
0.1
5W
2SC5100
0.01
20K/20K
47
16V
2SC2412
PS2501L-1
5K
2SC2412
2SC2412
3.3k
5.6k
GL5ED60
3.3k
2SC3421
FRH08A15
PS2501L-1
2SB1238
22
16V
1.8k
20A
32V
32V
DTA114EKA
2SA1618
2.2
10k
1k
220
4.7k
22
35V
GND
CNP802
(CHASSIS)
1
2
3
4
1
2
3
4
(CHASSIS)
S
S
LOW-PASS FILTER
LOW BOOST
PHASE
+
−
SWITCH
LINE
-1
-2
-1
-2
Q102,103
DIFFERENTIAL
AMP
Q104,105
DRIVE AMP
Q108-111
DRIVE
FINAL
Q106,107
BIAS
(CHASSIS)
Q803-805
OVER LOAD DETECT
LPF
(1/2)
MIX AMP
(2/2)
PRE AMP
Q801,802
MUTING
TEMPERATURE
DETECT
ISOLATOR
LEVEL
LED DRIVE
(PROTECTOR)
LED DRIVE
(POWER)
POWER/PROTECTOR
REGULATOR
REGULATOR
-15V
+15V
DC/DC CONVERTER
CONVERTER
DC/DC
Q906-909
REGULATOR
POWER
ON/OFF
MUTING
CONTROL
B+ SWITCH
DC/DC
CONVERTER
GND
C1
R+
C+
TIME
DEAD-
FEED-
BACK
IN
NON-
INV.
NON-
INV.IN
INV.IN
IN
INV.
REF-
OUT.CNT
OUT.
CNT
VCC
C2
E2
E1
DETECT
Q913,914
PROTECT
L
R
INPUT
+B 12V
CONTROLLER
REMOTE LEVEL
HIGH LEVEL INPUT L(
−
)
HIGH LEVEL INPUT L(+)
HIGH LEVEL INPUT R(
−
)
HIGH LEVEL INPUT R(+)
REMOTE INPUT
µ
PC494G5
XS-AW81P5
12
12
MEMO
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