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Model
SA-WM20
Pages
11
Size
888.98 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
sa-wm20.pdf
Date
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Sony SA-WM20 Service Manual ▷ View online

6
3-2. AMP SECTION
F1
F2
T1
not supplied
not supplied
not supplied
51
52
53
54
54
54
55
56
57
54
54
54
57
60
60
57
58
59
63
61
62
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
1-680-713-12 PWB, MAIN
52
A-4412-797-A CABINET ASSY(SILVER) (E,US,AEP,MY,SP)
52
A-4412-798-A CABINET ASSY(BLACK)
(E,US,MX,CA,AEP,UK,MY,SP)
* 53
3-703-150-11 CLAMP (E,AEP,UK,MY,SP)
54
7-685-649-79 SCREW +BVTP 3X14  TYPE2 IT-3
55
1-680-717-12 PWB, POWER IC
56
4-234-079-11 PANEL, REAR (US,MX,CA)
56
4-234-079-41 PANEL, REAR (AEP,UK,MY,SP)
56
4-234-079-51 PANEL, REAR (E)
57
4-914-518-11 SCREW (4X14), (+) (B) TAPPING
58
1-777-071-11 CORD, POWER (AEP,UK)
58
1-783-525-11 CORD, POWER (TRACKING) (E)
58
1-783-820-11 CORD, POWER (US,MX,CA,MY,SP)
* 59
3-703-244-00 BUSHING (2104), CORD
60
7-685-660-19 SCREW +BVTP 4X10 TYPE2 N-S
61
3-701-946-21 LABEL, FUSE RATING
62
4-234-637-01 CUSHION (TRANSFORMER)
63
4-956-370-02 BAND, PLUG FIXED (UK)
0F1
1-532-500-31 FUSE (T630mAL/250V)(AEP,UK,MY,SP)
0F1
1-532-502-31 FUSE (T1.25AL/250V)(E)
0F1
1-532-742-11 FUSE, GLASS CYLINDRICAL(DIA.5)
(1.6A/125V)(US,MX,CA)
0F2
1-532-499-31 FUSE (T400mAL/250V)(E)
0T1
1-435-879-11 TRANSFORMER, POWER (US,MX,CA)
0T1
1-435-880-11 TRANSFORMER, POWER (AEP,UK,MY,SP)
0T1
1-435-881-11 TRANSFORMER, POWER (E)
7
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SA-WM20
SECTION 4
ELECTRICAL PARTS LIST
1-680-714-12 PWB, CONTROL
*************
<CAPACITOR>
C203
1-136-173-00 MYLAR
0.47uF
5.00%
50V
C204
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C205
1-126-963-11 ELECT
4.7uF
20.00% 50V
C207
1-126-963-11 ELECT
4.7uF
20.00% 50V
C208
1-104-664-11 ELECT
47uF
20.00% 25V
C209
1-104-664-11 ELECT
47uF
20.00% 25V
C210
1-126-965-11 ELECT
22uF
20.00% 50V
C211
1-126-965-11 ELECT
22uF
20.00% 50V
<CONNECTOR>
CN201
1-785-093-11 PIN, CONNECTOR 8P
<IC>
IC201
8-759-634-50 IC  M5218AL
IC202
8-759-634-50 IC  M5218AL
<RESISTOR>
R201
1-249-425-11 CARBON
4.7K
5%
1/4W F
R202
1-249-429-11 CARBON
10K
5%
1/4W
R203
1-249-425-11 CARBON
4.7K
5%
1/4W F
R204
1-249-425-11 CARBON
4.7K
5%
1/4W F
R205
1-249-429-11 CARBON
10K
5%
1/4W
R206
1-249-429-11 CARBON
10K
5%
1/4W
R207
1-249-429-11 CARBON
10K
5%
1/4W
R208
1-249-441-11 CARBON
100K
5%
1/4W
R209
1-247-807-31 CARBON
100
5%
1/4W
R214
1-247-887-00 CARBON
220K
5%
1/4W
R215
1-249-425-11 CARBON
4.7K
5%
1/4W F
<VARIABLE RESISTOR>
RV201
1-227-365-11 RES, VAR 20K/20K
RV202
1-227-364-11 RES, VAR 20K
<SWITCH>
S201
1-554-522-00 SWITCH, PUSH (1 KEY)
*************************************************************
1-680-716-12PWB, LED
********
<CONNECTOR>
* CN203
1-564-517-11 PLUG, CONNECTOR 2P
<DIODE>
D201
8-719-058-03 DIODE  SEL5423E-TP15
*************************************************************
1-680-713-12 PWB, MAIN
**********
<CAPACITOR>
0 C2
1-113-924-11 CERAMIC
0.0047uF
20.00% 250V
C101
1-126-964-11 ELECT
10uF
20.00% 50V
C103
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C104
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C301
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C303
1-126-933-11 ELECT
100uF
20.00% 16V
C304
1-136-153-00 FILM
0.01uF
5%
50V
C305
1-126-967-11 ELECT
47uF
20.00% 50V
C306
1-126-967-11 ELECT
47uF
20.00% 50V
C307
1-136-169-00 MYLAR
0.22uF
5.00%
50V
C308
1-136-169-00 MYLAR
0.22uF
5.00%
50V
C309
1-126-934-11 ELECT
220uF
20.00% 10V
C310
1-126-949-11 ELECT
220uF
20.00% 35V
C311
1-126-963-11 ELECT
4.7uF
20.00% 50V
C312
1-126-964-11 ELECT
10uF
20.00% 50V
C320
1-102-110-00 CERAMIC
0.00022uF 10.00% 50V
C401
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C402
1-136-165-00 MYLAR
0.1uF
5.00%
50V
C403
1-126-974-11 ELECT
3300uF
20.00% 50V
C404
1-126-974-11 ELECT
3300uF
20.00% 50V
C405
1-104-665-11 ELECT
100uF
20.00% 25V
C406
1-104-665-11 ELECT
100uF
20.00% 25V
<CONNECTOR>
CN1
1-564-321-00 PIN, CONNECTOR 2P
* CN2
1-580-230-11 PIN, CONNECTOR (PC BOARD) 2P
CN101
1-785-093-11 PIN, CONNECTOR 8P
* CN301
1-565-792-11 PIN, CONNECTOR 2P
<DIODE>
D101
8-719-991-33 DIODE  1SS133T-77
D102
8-719-991-33 DIODE  1SS133T-77
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
NOTE:
•
Due to standardization, replacements in the
parts list may be different from the parts
specified in the diagrams or the components
used on the set.
•
-XX, -X mean standardized parts, so they
may have some difference 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.
•
CAPACITORS:
uF: µF
•
RESISTORS
All resistors are in ohms.
METAL: metal-film resistor
METAL OXIDE: Metal Oxide-film resistor
F: nonflammable
•
COILS
uH: µH
•
SEMICONDUCTORS
In each case, u: µ, for example:
uA...: µA... , uPA... , µPA... ,
uPB... , µPB... , uPC... , µPC... ,
uPD..., µPD...
• Abbreviation
CND : Canadian model
SP
: Singapore model
MX
: Mexican model
MY
: Malaysia model
When indicating parts by reference number,
please include the board name.
CONTROL
MAIN
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque  0 sont critiques pour la
sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
LED
8
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SA-WM20
D103
8-719-991-33 DIODE  1SS133T-77
D104
8-719-991-33 DIODE  1SS133T-77
D301
8-719-991-33 DIODE  1SS133T-77
D302
8-719-991-33 DIODE  1SS133T-77
D303
8-719-991-33 DIODE  1SS133T-77
D304
8-719-991-33 DIODE  1SS133T-77
D401
8-719-500-56 DIODE  D3SBA20
D402
8-719-991-33 DIODE  1SS133T-77
D403
8-719-947-61 DIODE  MTZJ-T-72-15B
D404
8-719-947-61 DIODE  MTZJ-T-72-15B
<FUSE>
0 F1
1-532-500-31 FUSE (T630mAL/250V)(AEP,UK,MY,SP)
0 F1
1-532-502-31 FUSE (T1.25AL/250V)(E)
0 F1
1-532-742-11 FUSE, GLASS CYLINDRICAL (DIA.5)
(1.6A/125V)(US,MX,CA)
0 F2
1-532-499-31 FUSE (T400mAL/250V)(E)
<IC>
IC101
8-759-634-50 IC  M5218AL
IC102
8-759-634-50 IC  M5218AL
<JACK>
J103
1-770-377-31 JACK, PIN 1P (LINE)(E)
J103
1-793-446-11 JACK, PIN 1P (LINE)(US,MX,CA,AEP,UK,MY,SP)
<TRANSISTOR>
Q301
8-729-029-86 TRANSISTOR  DTC124ESA
Q302
8-729-119-78 TRANSISTOR  2SC2785-HFE
Q303
8-729-178-42 TRANSISTOR  2SC2784-F
Q304
8-729-119-78 TRANSISTOR  2SC2785-HFE
Q401
8-729-029-66 TRANSISTOR  DTC114ESA
<RESISTOR>
R101
1-249-441-11 CARBON
100K
5%
1/4W
R102
1-249-441-11 CARBON
100K
5%
1/4W
R103
1-249-425-11 CARBON
4.7K
5%
1/4W F
R105
1-249-441-11 CARBON
100K
5%
1/4W
R106
1-249-441-11 CARBON
100K
5%
1/4W
R107
1-249-425-11 CARBON
4.7K
5%
1/4W F
R109
1-249-425-11 CARBON
4.7K
5%
1/4W F
R110
1-249-441-11 CARBON
100K
5%
1/4W
R111
1-249-429-11 CARBON
10K
5%
1/4W
R114
1-247-887-00 CARBON
220K
5%
1/4W
R115
1-249-441-11 CARBON
100K
5%
1/4W
R116
1-249-429-11 CARBON
10K
5%
1/4W
R117
1-247-895-00 CARBON
470K
5%
1/4W
R118
1-249-425-11 CARBON
4.7K
5%
1/4W F
R120
1-249-425-11 CARBON
4.7K
5%
1/4W F
R121
1-249-425-11 CARBON
4.7K
5%
1/4W F
R122
1-249-425-11 CARBON
4.7K
5%
1/4W F
R123
1-249-425-11 CARBON
4.7K
5%
1/4W F
R301
1-249-425-11 CARBON
4.7K
5%
1/4W F
R302
1-249-433-11 CARBON
22K
5%
1/4W
R303
1-249-411-11 CARBON
330
5%
1/4W
R304
1-249-433-11 CARBON
22K
5%
1/4W
R305
1-249-435-11 CARBON
33K
5%
1/4W
R307
1-249-385-11 CARBON
2.2
5%
1/6W F
R308
1-215-868-00 METAL OXIDE
680
5%
1W
R309
1-249-433-11 CARBON
22K
5%
1/4W
R310
1-249-433-11 CARBON
22K
5%
1/4W
R311
1-249-441-11 CARBON
100K
5%
1/4W
R312
1-249-441-11 CARBON
100K
5%
1/4W
R313
1-249-437-11 CARBON
47K
5%
1/4W
R314
1-249-430-11 CARBON
12K
5%
1/4W
R401
1-215-892-11 METAL OXIDE
1K
5%
2W
R402
1-215-892-11 METAL OXIDE
1K
5%
2W
R405
1-249-429-11 CARBON
10K
5%
1/4W
R406
1-215-894-11 METAL OXIDE
2.2K
5%
2W
<RELAY>
RY301
1-515-920-11 RELAY (24V)
<SWITCH>
0 S2
1-762-953-11 SWITCH, POWER (VOLTAGE SELECTOR)(E)
<TERMINAL>
TM101
1-537-922-11 TERMINAL BOARD (SPEAKER)
*************************************************************
1-680-715-12 PWB, SWITCH
************
<CAPACITOR>
0 C1
1-113-924-11 CERAMIC
0.0047uF
20.00% 250V
<CONNECTOR>
* CN3
1-564-321-11 PIN, CONNECTOR 2P
<SWITCH>
0 S1
1-554-920-11 SWITCH, PUSH (AC POWER)(1 KEY)(@/1)
*************************************************************
1-680-717-12 PWB, POWER IC
**************
<CAPACITOR>
C302
1-162-286-31 CERAMIC
220PF
10%
50V
<CONNECTOR>
CN303
1-785-088-11 PIN, CONNECTOR 6P
<IC>
IC301
8-759-299-54 IC  LM3886TF
<RESISTOR>
R306
1-249-435-11 CARBON
33K
5%
1/4W
*************************************************************
SWITCH
MAIN
POWER IC
The components identified by mark 
0
 or
dotted line with mark 
0
 are critical for
safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifié.
9
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
SA-WM20
MISCELLANEOUS
**************
0 T1
1-435-879-11 TRANSFORMER, POWER (US,MX,CA)
0 T1
1-435-880-11 TRANSFORMER, POWER (AEP,UK,MY,SP)
0 T1
1-435-881-11 TRANSFORMER, POWER (E)
*************************************************************
ACCESSORIES & PACKING MATERIALS
*******************************
1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
1-769-329-21 CORD, CONNECTION (PIN-PIN)
1-769-433-21 CORD, SPEAKER
4-233-869-11 MANUAL, INSTRUCTION
 (ENGLISH,FRENCH)(US,CND,UK)
4-233-869-21 MANUAL, INSTRUCTION
(ENGLISH,FRENCH,GERMAN,ITALIAN)(AEP)
4-233-869-31 MANUAL, INSTRUCTION
(DUTCH,SPANISH,SWEDISH,POLISH)(AEP)
4-233-869-41 MANUAL, INSTRUCTION
(PORTUGUESE,DANISH,FINNISH,RUSSIAN)
(AEP)
4-233-869-51 MANUAL, INSTRUCTION
(ENGLISH,FRENCH,SPANISH,CHINESE)
(E,MX,MY,SP)
4-235-237-01 FOOT
The components identified by mark 
0
 or
dotted line with mark 
0
 are critical for
safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
 sont critiques pour la sécurité.
Ne les remplacer que par une piéce portant
le numéro spécifié.
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