Sony XS-AW850 Service Manual ▷ View online
XS-AW850
– 5 –
– 6 –
SECTION 3
DIAGRAMS
3-1. IC BLOCK DIAGRAMS
2-3. DC FAN MOTOR
IC101
µ
PC4570G2
IC602 LM2904M
IC901
µ
PC494GS
4
1
2
3
5
6
7 8
9
10
16 15
14
13
12 11
ERROR
0.1V
REG.
REF.
OSC
ERROR
Main baord
1
Four screws
(K 3x10)
4
Two screws
(BTP 3x14)
2
Connector (CN502)
3
Heat sink sub (A)
5
DC fan motor
(M901)
CN502
8
9
10
7
6
5
12
13
14
11
4
3
2
1
B-
B+
5
6
7
8
4
3
2
1
B-
B+
BO
VC
C
A+
GND
A-
AO
• WAVEFORMS
1
2
3
4
14Vp-p
27
µ
sec
29Vp-p
27
µ
sec
29Vp-p
27
µ
sec
60Vp-p
27
µ
sec
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed
in each block.)
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
• All capacitors are in µF unless otherwise noted. pF: µµF
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.
•
¢
: internal component.
•
C
: panel designation.
•
U
: B+ Line.
• Power voltage is dc 14.4V and fed with regulated dc power
supply from ACC and BATT cords.
• Voltage and waveforms are dc with respect to ground
under no-signal conditions.
no mark : POWER ON
no mark : POWER ON
∗
: Impossible to measure
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
• Signal path.
F
: AUDIO
For printed wiring boards.
Note:
• X
: parts extracted from the component side.
•
¢
: internal component.
XS-AW850
– 7 –
– 8 –
3-2. PRINTED WIRING BOARD
• Semiconductor
Location
D601
C-7
D602
C-7
D603
B-7
D604
B-7
D605
C-7
D606
C-6
D607
B-6
D608
B-7
D609
B-6
D801
B-5
D802
B-5
D901
C-2
D902
B-3
D903
D-3
D904
A-4
D905
C-3
D906
C-5
D907
F-4
D908
F-3
D909
F-4
D910
F-6
D911
F-5
D912
C-4
D913
E-6
D914
D-5
D915
E-5
D916
E-4
D918
E-3
IC101
D-9
IC102
C-11
IC301
D-9
IC302
D-11
IC501
E-10
IC502
F-9
IC503
F-9
IC504
F-8
IC601
D-7
IC602
C-6
IC801
B-5
IC901
D-3
IC902
E-4
Q501
C-6
Q502
C-6
Q601
E-7
Q602
C-5
Q603
C-5
Q801
B-4
Q802
B-4
Q901
C-3
Q902
C-2
Q903
B-4
Q904
C-3
Q905
C-3
Q906
F-2
Q907
F-2
Q908
F-2
Q909
F-2
Q910
B-3
Q911
F-6
Q912
F-6
Q913
D-6
Q914
D-6
Q915
C-4
Q916
C-4
Q917
C-4
Q918
E-3
Ref. No.
Location
C904
R927
R928
Q907
Q906
R930
R929
R923
R924
R916
R921
R926
R925
IC901
JC34
R909
R956
R910
R914
C911
JC31
Q905
JC30
R911
R913
JC33
R920
R922
R918
Q904
R904
R903
Q910
D902
R902
R942
R933
R810
Q603
Q602
R813
JC25
R908
JC29
R907
JC28
C808
R803
C805
D903
C927
Q903
Q802
R814
IC801
R809
C804
R804
R807
R805
JC24
C802
R815
R612
R611
R610
R609
R608
R607
R606
R605
RED
BLU
BLK
BLK
GRN
GR
Y
BLK
BLK
WHT
BLU
BLK
BLK
GRN
GR
Y
BLK
BLK
WHT
C106
C206
C207
C306
C307
C407
C406
C303
R404
C304
C403
C104
C103
C203
C204
JC20
JC19
R203
R202
R103
R102
C108
C408
R403
R405
C404
R305
R304
R402
R303
R210
R205
R204
R110
R310
C208
R104
R105
R206
JC16
JC17
JC12
C409
R406
R409
R408
R302
R307
R309
R109
JC5
R108
R209
C961
R953
C956
R954
C955
R952
C107
IC602
R615
Q502
Q501
R623
R613
R616
JC26
D905
R932
Q916
Q915
R601
C601
C602
R622
R621
R603
R602
R529
R528
C516
R523
JC18
R511
C959
R510
JC14
R509
R504
R512
R519
R517
R520
R516
R522
D910
C921
D911
C922
C910
D901
C903
Q902
R919
R618
D914
R939
R936
R410
JC32
C902
D905
R917
R915
D904
R906
R806
R905
Q801
R808
R811
R532
R620
R614
R619
R941
JC36
Q914
R938
Q913
C113
JC23
JC21
JC22
C313
C413
C213
R207
C209
C205
R407
JC11
C405
JC10
JC9
C308
C305
IC301
R306
JC7
IC302
JC1
C957
C953
C952
C954
JC2
JC3
JC4
C960
R208
IC102
JC6
R308
C309
C109
R107
C105
R106
IC101
Q601
R604
R505
R501
R506
IC501
R503
IC503
R525
R526
R521
R527
R531
C521
JC35
C518
JC27
R935
R934
C962
R931
R802
R801
R951
R515
IC502
C509
JC15 R514
1-673-839-
JC8
R513
11
8
16
9
1
R912
JC13
B
B
E
B
E
B
E
E
R937
R942
D916
D915
IC902
Q912
Q911
R530
JC38
R550
J57
POWER/
PROTECTOR
SUB WOOFER
OUT
GND
25A
F901
CN2
ACC
M901
DC FAN MOTOR
+12V
CN1
REMOTE
R
L
R
L
REAR
SPEAKER
OUT
FRONT
R
L
R
L
REAR
HIGH-LEVEL
INPUT
FRONT
R
L
R
L
REAR
INPUT
CNP101
(PIN JACK)
FRONT
F
F+R
MODE
SUB WOOFER
S501
LEVEL
(MIN-MAX)
VR501
PHASE
S502
FRONT
HI-PASS FILTER
(50Hz-150Hz)
VR101
REAR
(50Hz-150Hz)
VR301
D904
M
R943
R944
JC37
Q918
D918
R617
C958
J15
J14
J13
J12
J13
J11
J17
J16
C210
C110
C411
C311
C310
C410
J20
J19
J18
J21
J22
J23
J24
J26
J25
J10
CNP101
J1
J2
J3
J4
C301
C101
C401
C201
C402
VR301
VR101
C202
C302
C102
J7
C951
J8
J9
J56
J54
J55
J6
J5
C211
C111
C603
1
5
13
25
20
10
D604
D601
J58
D602
C604
R104
R201
R301
R401
D603
D608
J60
J61
IC601
D605
D606
D607
D609
D607
C519
C522
J35
J34
J47
J48
J49
J31
J32
J33
D913
J63
C514
C512
C517
C515
C520
J28
J27
J30
J29
TH903
J38
J40
J41
J42
J43
J39
C926
C916
J45
J44
C920
J53
C918
C917
J51
J50
J52
C505
C507
CN501
1 3
5
7
9
11
TH902
IC504
C919
C917
J64
J36
C508
C513
J68
FB1
C923
C924
FB2
FB3
J65
D908
D907
D909
J77
D912
CN502
Q901
R901
J73
J75
J74
J72
C605
C606
C915
J66
TH901
Q917
J82
J81
T901
C925
J76
C907
C906
C905
J67
C808
C807
C803
D801
D802
Q908
Q909
J85
J84
J83
J89
PL901
J88
J86
J87
C913
C912
C914
J78
C908
J80
J79
J70
J71
J69
C901
C928
L902
J89
C806
L801 C801
S501
S502
C502
C501
C506
J46
C909
G
G
S
S
MAIN BOARD
1
F
E
D
C
B
A
2
3
4
5
6
7
8
9
10
11
09
R946
VR501
XS-AW850
– 9 –
– 10 –
3-3. SCHEMATIC DIAGRAM
• Refer to page 6 for Waveforms and Note.
• Refer to page 6 for IC Block Diagrams.
• Refer to page 6 for IC Block Diagrams.
XS-AW850
– 11 –
– 12 –
SECTION 4
EXPLODED VIEWS
NOTE:
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and pack-
ing materials are given in the last of this parts list.
Ref. No.
Part No.
Description
Remark
1
X-3377-583-1 NET ASSY
2
3-037-207-01 GRILLE
3
3-037-208-01 SCREW (4x30), TAPPING
* 4
3-037-206-01 BOX, SPEAKER
5
1-694-575-11 TERMINAL BOARD
SP901
1-529-397-11 SPEAKER (20cm)
(1) SPEAKER AND AMPLIFIER SECTION
(2) AMPLIFIER SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 59
3-037-253-01 PLATE, LIGHT GUIDE
* 60
3-037-249-01 SPACER
61
3-038-125-01 GROMMET
62
3-038-126-01 RING
63
3-912-431-01 SCREW (P)
F901
1-576-256-11 FUSE (BLADE TYPE) (AUTO FUSE) (25A)
M901
1-763-366-11 MOTOR, DC FAN
51
3-037-200-01 BUTTON
* 52
3-037-524-01 SHEET
* 53
A-3317-759-A MAIN BOARD, COMPLETE
* 54
3-037-202-01 SUB (A), HEAT SINK
* 55
3-037-203-01 SUB (B), HEAT SINK
* 56
3-037-204-01 SUB (C), HEAT SINK
* 57
3-037-201-01 HEAT SINK (MAIN)
* 58
3-037-205-01 PANEL
1
3
3
3
2
3
4
AMPLIFIER ASSY
SP901
#6
#6
5
M901
51
not supplied
52
57
53
Supplied with
VR101,301,501
VR101,301,501
not supplied
F901
#1
#4
#3
#3
#3
#3
#3
#3
#3
#3
#4
#3
#5
#5
#2
#2
#2
#2
#2
not supplied
56
55
63
54
58
59
61
62
60
60
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