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SA-WNT3
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32
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Service Manual
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sa-wnt3.pdf
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Sony SA-WNT3 Service Manual ▷ View online

25
SA-WNT3
SECTION  5
EXPLODED  VIEWS
Note:
•  -XX and -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 ser-
vice. Some delay should be anticipated 
when ordering these items.
•  The mechanical parts with no reference 
number in the exploded views are not sup-
plied.
•  Color Indication of Appearance Parts Ex-
ample:
  KNOB, BALANCE (WHITE) . . . (RED)
   
 
↑ 
   
 
Parts Color  Cabinet’s Color
• Abbreviation
  AR  
: Argentina model
  AUS   : Australian model
  CND  : Canadian model
  E3 
: 240V AC area in E model
  EA 
: Saudi Arabia model
  LA9 
: Latin-American model
  RU 
: Russian model
  SP 
: Singapore model
 TW  : 
Taiwan 
model
5-1.  OVERALL  SECTION
• Rear view
The components identifi ed  by  mark 
or dotted line with mark 
0 are critical for 
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque 
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
Note: If wire (fl at type) is replaced, install it after bending 
it in the same form as that before replacement.
  1 
4-874-614-12  SCREW (1) (3.5X14), TAPPING
  2 
3-906-887-11  SCREW (+BTP) (DIA. 3) (BZN-N)
  3 
1-828-309-51  WIRE (FLAT TYPE) (9 CORE)
  4 
1-828-780-51  WIRE (FLAT TYPE) (26 CORE)
  5 
4-571-115-01  CUSHION, COVER (SZ-SW)
   
 
  6 
1-492-700-61  RF MODULATOR (WS001)
  7 
4-547-311-01  BUTTON, POWER (SZ-SW)
  8 
4-547-310-01  PANEL, REAR (SZ-SW)
  #1 
7-685-646-71  SCREW +BVTP 3X8 TYPE2 IT-3
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
not supplied
not supplied
not supplied
(SUB KEY board)
SUB MAIN section
subwoofer cabinet section
#1
1
5
6
4
3
7
8
1
2
2
2
not supplied
not supplied
not supplied
Ver. 1.2
26
SA-WNT3
5-2.  SUB  MAIN  SECTION
A
A
52
53
not supplied
not supplied
not supplied
54
51
#1
#3
#1
#2
#2
(AEP, UK, RU, AUS)
  51 
A-2082-274-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(US, CND)
  51 
A-2082-276-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AEP)
  51 
A-2082-277-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(UK)
  51 
A-2082-278-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(RU)
  51 
A-2082-279-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(E3)
  51 
A-2082-280-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(EA)
  51 
A-2082-281-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AUS)
  51 
A-2082-282-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(SP)
  51 
A-2082-283-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(TW)
  51 
A-2082-284-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(LA9)
  51 
A-2082-285-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AR)
0 52 
4-966-267-12  BUSHING (FBS001), CORD
0 53 
1-834-966-42  POWER-SUPPLY CORD (AEP, RU, E3, SP, LA9)
0 53 
1-835-068-21  CORD, POWER (AUS)
0 53 
1-837-308-12  CORD, POWER-SUPPLY (US, CND)
0 53 
1-837-312-11  CORD, POWER-SUPPLY (AR)
0 53 
1-837-345-11  CORD, POWER-SUPPLY (TW)
0 53 
1-839-999-21  POWER-SUPPLY CORD (UK, EA)
0 54 
1-474-602-12  REGULATOR, SWITCHING (3L405W)
  #1 
7-685-646-71  SCREW +BVTP 3X8 TYPE2 IT-3
  #2 
7-685-645-71  SCREW +BVTP 3X6 TYPE2 IT-3
  #3 
7-685-647-71  SCREW +BVTP 3X10 TYPE2 IT-3
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
Note 1: When the complete SUB MAIN board is re-
placed, refer to “NOTE OF REPLACING THE 
IC7203 ON THE SUB MAIN BOARD AND THE 
COMPLETE SUB MAIN BOARD” on page 4.
Note 2: When the SWITCHING REGULATOR (3L405W) 
board is replaced, spread the bond referring to 
“BOND FIXATION OF ELECTRIC PARTS” on 
page 4.
Ver. 1.2
27
SA-WNT3
5-3.  SUBWOOFER  CABINET  SECTION
#1
#1
105
105
105
105
101
102
103
104
103
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
(SUB LED board)
  101 
X-2590-875-1  CLOTH FRAME ASSY (SZ-SW)
  102 
4-547-305-01  PANEL, FRONT (SZ-SW)
  103 
4-238-407-02  SCREW (1) (4X20), +BV TAPPING
 104 
1-859-081-11 LOUDSPEAKER 
(16CM)-081-11
 105 
2-682-469-11 FOOT 
(SW)
  #1 
7-685-646-71  SCREW +BVTP 3X8 TYPE2 IT-3
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
28
SA-WNT3
SECTION  6
ELECTRICAL  PARTS  LIST
When indicating parts by reference num-
ber, please include the board name.
Note:
•  Due to standardization, replacements in 
the parts list may be different from the 
parts specifi ed in the diagrams or the com-
ponents used on the set.
•  -XX and -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 ser-
vice. Some delay should be anticipated 
when ordering these items.
• RESISTORS
  All resistors are in ohms.
 METAL: 
Metal-fi lm resistor.
  METAL OXIDE: Metal oxide-fi lm resistor.
 F: 
nonfl ammable
• CAPACITORS
 uF: 
μF
• COILS
 uH: 
μH
• SEMICONDUCTORS
  In each case, u: 
μ, for example:
 uA. 
. : 
μA. . , uPA. . , μPA. . , 
 uPB. 
μPB. . , uPC. . , μPC. . , 
 uPD. 
μPD. .
• Abbreviation
 AR  : 
Argentina 
model
 AUS : 
Australian 
model
  CND  : Canadian model
  E3 
: 240V AC area in E model
  EA 
: Saudi Arabia model
  LA9 
: Latin-American model
  RU 
: Russian model
  SP 
: Singapore model
 TW  : 
Taiwan 
model
The components identifi ed by mark 
or dotted line with mark 
0 are critical for 
safety.
Replace only with part number specifi ed.
Les composants identifi és par une marque 
0 sont critiques pour la sécurité.
Ne les remplacer que par une pièce por-
tant le numéro spécifi é.
   
 
SUB KEY BOARD  
 
   
 
*************   
 
   
 
 
 
 
   
 
< CAPACITOR >   
 
   
 
 
 
 
* C7010 
1-118-035-11  CERAMIC CHIP  0.1uF 
10% 
25V
* C7011 
1-118-035-11  CERAMIC CHIP  0.1uF 
10% 
25V
   
 
 
 
 
   
 
< CONNECTOR >  
 
   
 
 
 
 
  CN7010  1-784-861-51  CONNECTOR, FFC (LIF (NON-ZIF)) 9P   
  CN7011  1-785-466-51  CONNECTOR, FFC/FPC 7P   
 
   
 
 
 
 
   
 
< RESISTOR >   
 
   
 
 
 
 
 R7010  1-218-990-81 SHORT 
CHIP  0 
 
 R7011  1-218-990-81 SHORT 
CHIP  0 
 
   
 
 
 
 
   
 
< SWITCH > 
 
 
   
 
 
 
 
  S7010 
1-798-284-11  TACTILE SWITCH (?/1)    
  S7011 
1-798-284-11  TACTILE SWITCH (SECURE LINK) 
 
*************************************************************
   
 
SUB LED BOARD  
 
   
 
*************   
 
   
 
 
 
 
   
 
< CONNECTOR >  
 
   
 
 
 
 
  CN7000  1-580-056-21  PIN, CONNECTOR (SMD) 3P   
 
   
 
 
 
 
   
 
< DIODE > 
 
 
   
 
 
 
 
  D7001 
6-502-843-01  DI    CL-165HR/HG5-D-T 
 
 
   
 
 
 
 
   
 
< RESISTOR >   
 
   
 
 
 
 
 R7000  1-216-813-11 METAL 
CHIP  220 
5%  1/10W
 R7002  1-216-808-11 METAL 
CHIP  82 
5%  1/10W
*************************************************************
   
A-2082-274-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(US, CND)
   
A-2082-276-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AEP)
   
A-2082-277-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(UK)
   
A-2082-278-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(RU)
   
A-2082-279-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(E3)
  Ref. No. 
Part No. 
Description 
Remark
  Ref. No. 
Part No. 
Description 
Remark
   
A-2082-280-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(EA)
   
A-2082-281-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AUS)
   
A-2082-282-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(SP)
   
A-2082-283-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(TW)
   
A-2082-284-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(LA9)
   
A-2082-285-A  SUB MAIN BOARD, COMPLETE (for SERVICE) 
(AR)
   
 
************************
   
 
 
 
 
   
 
< CAPACITOR >   
 
   
 
 
 
 
 C7100  1-116-874-11  CERAMIC 
CHIP 10uF 
10%  35V
 C7101  1-118-399-11  CERAMIC 
CHIP 0.0022uF 10%  50V
 C7102  1-116-711-11  CERAMIC 
CHIP 22uF 
20%  16V
 C7103  1-116-711-11  CERAMIC 
CHIP 22uF 
20%  16V
 C7104  1-116-874-11  CERAMIC 
CHIP 10uF 
10%  35V
   
 
 
 
 
 C7105  1-118-361-11  CERAMIC 
CHIP 0.1uF 
10%  50V
 C7108  1-116-736-11  CERAMIC 
CHIP 1uF 
10%  10V
 C7109  1-116-736-11  CERAMIC 
CHIP 1uF 
10%  10V
 C7110  1-112-806-11  ELECT 
CHIP  47uF 
20%  50V
 C7111  1-117-681-11  ELECT 
CHIP  100uF  20%  16V
   
 
 
 
 
 C7119  1-118-386-11  CERAMIC 
CHIP 0.1uF 
10%  16V
 C7120  1-118-361-11  CERAMIC 
CHIP 0.1uF 
10%  50V
 C7200  1-164-849-11 CERAMIC 
CHIP 9PF 
0.5PF  50V
 C7201  1-118-391-11  CERAMIC 
CHIP 0.01uF  10%  50V
 C7202  1-118-395-11  CERAMIC 
CHIP 0.0047uF 10%  50V
   
 
 
 
 
 C7203  1-118-391-11  CERAMIC 
CHIP 0.01uF  10%  50V
 C7204  1-164-849-11 CERAMIC 
CHIP 9PF 
0.5PF  50V
 C7206  1-118-395-11  CERAMIC 
CHIP 0.0047uF 10%  50V
* C7207 
1-116-720-11  CERAMIC CHIP  10uF 
20% 
6.3V
 C7208  1-118-395-11  CERAMIC 
CHIP 0.0047uF 10%  50V
   
 
 
 
 
* C7209 
1-116-720-11  CERAMIC CHIP  10uF 
20% 
6.3V
 C7210  1-118-388-11  CERAMIC 
CHIP 0.047uF  10%  25V
 C7211  1-118-388-11  CERAMIC 
CHIP 0.047uF  10%  25V
* C7212 
1-116-720-11  CERAMIC CHIP  10uF 
20% 
6.3V
 C7213  1-118-386-11  CERAMIC 
CHIP 0.1uF 
10%  16V
   
 
 
 
 
 C7214  1-164-858-11 CERAMIC 
CHIP 22PF 
5%  50V
* C7215 
1-116-735-11  CERAMIC CHIP  1uF 
10% 
16V
* C7216 
1-116-735-11  CERAMIC CHIP  1uF 
10% 
16V
* C7217 
1-116-720-11  CERAMIC CHIP  10uF 
20% 
6.3V
SUB LED
SUB MAIN
SUB KEY
Note: When the complete SUB MAIN board is replaced, refer to 
“NOTE OF REPLACING THE IC7203 ON THE SUB MAIN 
BOARD AND THE COMPLETE SUB MAIN BOARD” on page 4.
Ver. 1.2
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