Sony DXA-WZ7AV / MHC-WZ7AV Service Manual ▷ View online
17
17
DXA-WZ7AV
4-7. Printed Wiring Board – SURROUND AMP Board –
12
SURROUND AMP BOARD
1
15
1
7
IC701
TO
TC MAIN
BOARD
NO809
(Page 12)
A
TO
TC MAIN
BOARD
CN401
(Page 12)
B
• Semiconductor
Location
Ref. No.
Location
D711
D-4
D741
C-4
D742
C-4
D761
C-4
IC701
A-1
Q701
A-4
Q711
D-3
Q731
A-3
Q741
C-3
Q751
A-3
Q761
C-3
18
18
DXA-WZ7AV
4-8. Schematic Diagram – SURROUND AMP Board –
C702
C704
C713
C732
C733
C734
C742
C743
C752
C754
C762
C763
C771
R701
R702
R703
R704
R705
R711
R712
R713
R714
R715
R716
R731
R732
R733
R734
R735
R741
R742
R743
R744
R745
R746
R752
R753
R754
R755
R761
R762
R763
R764
R765
R766
R773
C701
C703
C708
C709
C731
C751
C753
R700
EP701
C711
C712
IC701
Q741
Q761
Q711
D742
D711
D761
C761
C741
R774
D741
R736
Q731
Q751
Q701
R756
R706
R751
CN701
NO703
0.1
0.1
0.1
0.1
100k
1k
1k
47k
47k
15k
1k
2.2k
100k
1k
1k
47k
47k
15k
1k
100k
10
1/2W
100k
1k
1k
47k
47k
15k
1k
0.22
2W
100k
10
1/2W
22
50V
47
50V
47
50V
47
50V
100p
100p
100p
470p
470p
470p
2.2k
100k
10
1/2W
0.1
0.1
10 50V
10 50V
10 50V
0.22
2W
0.22
2W
10k
10k
0.01
0.001
MT
22p
STK403-240
2SC2785TP
-HFE
2SC2785TP
-HFE
2SC2785TP
-HFE
1SS355TE
-17
1SS355TE
-17
1SS355TE
-17
22p
22p
100
1/4W
1SS355TE
-17
330
2SC3624A
-T1L15L16
2SC3624A
-T1L15L16
2SC3624A
-T1L15L16
330
330
6P
7P
SECTION 5
EXPLODED VIEWS
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Abbreviation
EA : Saudi Arabian model
SP
EA : Saudi Arabian model
SP
: Singapore model
TH : Thai model
19
DXA-WZ7AV
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
5-1. Front Panel Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
a
a
c
c
b
b
9
22
22
10
10
13
13
13
13
11
15
16
19
20
19
12
14
17
18
21
not supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
d
d
6
chassis section
1
3
4
5
7
8
2
tape mechanism deck section
(CWM43RR23)
#1
#4
#3
#1
#1
1
4-244-459-01 SPRING (LID-L)
2
X-4955-286-2 LID (TC) ASSY
3
4-244-977-01 SPRING (LID-R)
4
X-4955-284-1 HOLDER (A) ASSY, TC
5
4-244-454-01 SPRING (HOLDER A)
6
1-769-985-11 WIRE (FLAT TYPE) (13 CORE)
7
X-4955-285-1 HOLDER (B) ASSY, TC
8
4-244-455-01 SPRING (HOLDER B)
9
4-244-442-01 PANEL (TC), FRONT
10
4-224-104-11 DAMPER
11
4-244-443-01 BUTTON (A)
12
4-244-444-01 BUTTON (B)
13
4-951-620-01 SCREW (2.6X8), +BVTP
14
4-244-450-01 HOLDER (LOCK)
15
4-244-448-01 LEVER (L)
16
4-244-447-01 LEVER (C)
17
4-244-449-01 LEVER (R)
18
4-244-446-01 BASE (LOCK)
19
3-363-099-11 SCREW (CASE 3 TP2)
20
4-244-441-11 CASE
21
4-245-758-01 PLATE (HEAD), SHIELD
22
4-959-229-11 DETENT, CASSETTE
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
#3
7-685-862-09 SCREW +BVTT 2.6X6 (S)
#4
7-685-853-04 SCREW +BVTT 2X6 (S)
20
DXA-WZ7AV
5-2. Chassis Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
a
a
not supplied
not supplied
not supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not
supplied
supplied
not supplied
not
supplied
supplied
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#2
#2
#1
#1
not supplied
not supplied
51
52
53
53
58
58
60
58
58
58
55
56
54
F105
F601
F101
T302
FAN301
F102
F103
F104
51
A-4732-234-A FRONT AMP BOARD, COMPLETE (EA,SP)
51
A-4734-588-A FRONT AMP BOARD, COMPLETE (TH)
52
A-4732-191-A TC MAIN BOARD, COMPLETE (SP)
52
A-4732-195-A TC MAIN BOARD, COMPLETE (EA)
52
A-4732-377-A TC MAIN BOARD, COMPLETE (TH)
53
4-900-386-01 SCREW
* 54
3-703-244-00 BUSHING (2104), CORD
0 55
1-468-737-11 POWER, SWITCHING
0 56
1-777-071-63 CORD, POWER (EA,SP)
0 56
1-824-818-11 CORD, POWER (WITH CONNECTOR) (TH)
58
3-970-608-01 SUMITITE (B3), +BV
60
A-4732-236-A SURROUND AMP BOARD, COMPLETE (EA,SP)
60
A-4734-591-A SURROUND AMP BOARD, COMPLETE (TH)
0 F101
1-533-473-11 FUSE, GLASS TUBE (DIA. 5) 6.3A/250V
0 F102
1-533-473-11 FUSE, GLASS TUBE (DIA. 5) 6.3A/250V
0 F103
1-533-473-11 FUSE, GLASS TUBE (DIA. 5) 6.3A/250V
0 F104
1-533-473-11 FUSE, GLASS TUBE (DIA. 5) 6.3A/250V
0 F105
1-533-471-11 FUSE, GLASS TUBE (DIA. 5) 4A/250V
0 F601
1-576-655-11 FUSE, GLASS TUBE (DIA. 5) 8A/250V
0 T302
1-439-639-11 TRANSFORMER, POWER (SP,TH)
0 T302
1-439-650-11 TRANSFORMER, POWER (EA)
FAN301 1-763-072-11 FAN, DC
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 N-S
#2
7-685-650-79 SCREW +BVTP 3X16 TYPE2 IT-3
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
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