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Model
KDL-32BX320 KDL-32BX321 KDL-32BX420 KDL-32BX421 KDL-40BX420 KDL-40BX421 KDL-46BX420 KDL-46BX421
Pages
80
Size
6.34 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-32bx320-kdl-32bx321-kdl-32bx420-kdl-32bx421-kd.pdf
Date

Sony KDL-32BX320 / KDL-32BX321 / KDL-32BX420 / KDL-32BX421 / KDL-40BX420 / KDL-40BX421 / KDL-46BX420 / KDL-46BX421 Service Manual ▷ View online

KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421 40
SECTION 6 - DISASSEMBLY/PART NUMBER INFORMATION
NOTE: Les composants identifies per un trame et 
une marque 
!
 sont critiques pour la securite. 
Ne les remplacer que par une piece portant le 
numero specifie.
NOTE: The components identified by shading 
and 
!
 mark are critical for safety. Replace only 
with part number specified. 
NOTE: The components identified by a red outline and a   mark contain 
confidential information. Specific instructions must be adhered to whenever 
these components are repaired and/or replaced. 
See Appendix A: Encryption Key Components in the back of this manual. 
(Check the Sony Authorized Servicer Portal a
www.sony.com/asp
 for any additional service related issues for this model.)
E
J
F
M
A
B
C
D
I
L
G
K
H
KDL-40BX420/40BX421 ONLY
 
FOR THE FOLLOWING SERIAL # RANGES: 
 
KDL-40BX420/40BX421  6000001 - 7400000 
A   Remove 7 screws from Rear Cover
B   Remove 1 screw from Side Bracket position
C   Remove 1 screw from Terminal Area position
D   Remove 4 screws from Rear Cover
E   Gently lift up Rear Cover from bottom side to detach from Bezel
F   Lift up AC Power Cord and disconnect 1 connector from G14 Board  
to detach from Under Cover
G   Remove 1 screw from Under Cover
H   Remove 1 screw from Left Speaker Bracket to detach from Bezel
I   Remove 2 screws from Speaker to detach from Left Speaker Bracket
J   Release clips and disconnect 1 connector to detach H Board  
from LED Guide
K   Remove 1 screw from Right Speaker Brackets to detach  
from Bezel
L   Remove 2 screws from Speaker to detach from  
Right Speaker Bracket
M   Lift up Switch Unit and disconnect  
1 connector to detach from Bezel
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
 
201 
4-270-695-11 
REAR COVER (GW40)   
[202]
 
 
 
(KDL-40BX420 ONLY)
 
 
 
(KDL-40BX421 MX ONLY)
 
201 
4-270-695-01 
REAR COVER (GW40)   
[202]
 
 
 
(KDL-40BX421 US/CND ONLY)
 
202 
4-266-658-01 
BRACKET, VESA (M6) (GW)
!
  203 
1-838-981-11 
POWER SUPPLY CORD (WITH CORE)
 
204 
4-264-314-01 
COVER, UNDER (GW37)
 
205 
4-264-316-01 
BRACKET, SP (GW40L)
 
206 
4-264-315-01 
BRACKET, SP (GW40R)
 
207 
1-858-572-11 
LOUDSPEAKER (4.0X10.0CM)
 
208 
1-857-898-21 
H BOARD, MOUNTED
 
209 
1-489-627-11 
SWITCH UNIT
 
 
7-685-647-79 
SCREW, +BVTP2 3X12
 
 
7-685-648-79 
SCREW, +BVTP 3X12 TYPE2 IT-3
 
 
2-580-640-01 
SCREW, +BVTP2 4X16
 
 
4-159-298-01 
SCREW, +PSW M4X10
208
209
201
207
207
204
202
206
205
203
FOR THE FOLLOWING SERIAL # RANGES: 
KDL-40BX420/40BX421   6000001 - 7400000
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421 41
SECTION 6 - DISASSEMBLY/PART NUMBER INFORMATION
NOTE: Les composants identifies per un trame et 
une marque 
!
 sont critiques pour la securite. 
Ne les remplacer que par une piece portant le 
numero specifie.
NOTE: The components identified by shading 
and 
!
 mark are critical for safety. Replace only 
with part number specified. 
NOTE: The components identified by a red outline and a   mark contain 
confidential information. Specific instructions must be adhered to whenever 
these components are repaired and/or replaced. 
See Appendix A: Encryption Key Components in the back of this manual. 
(Check the Sony Authorized Servicer Portal a
www.sony.com/asp
 for any additional service related issues for this model.)
E
J
F
M
A
B
C
D
I
L
G
K
H
 
FOR THE FOLLOWING SERIAL # RANGES: 
 
KDL-40BX420/40BX421  3000001 - 5500000
A   Remove 7 screws from Rear Cover
B   Remove 1 screw from Side Bracket position
C   Remove 1 screw from Terminal Area position
D   Remove 4 screws from Rear Cover
E   Gently lift up Rear Cover from bottom side to detach from Bezel
F   Lift up AC Power Cord and disconnect 1 connector from G14 Board 
to detach from Under Cover
G   Remove 1 screw from Under Cover
H   Remove 1 screw from Left Speaker Bracket to detach from Bezel
I   Remove 2 screws from Speaker to detach from Left Speaker Bracket
J   Release clips and disconnect 1 connector to detach H Board  
from LED Guide
K   Remove 1 screw from Right Speaker Brackets to detach  
from Bezel
L   Remove 2 screws from Speaker to detach from  
Right Speaker Bracket
M   Lift up Switch Unit and disconnect  
1 connector to detach from Bezel
 
251 
4-288-560-11 
REAR COVER (GF40)
 
 
 
(KDL-40BX420 ONLY)
 
 
 
(KDL-40BX421 MX ONLY)
 
251 
4-288-560-01 
REAR COVER (GF40)
 
 
 
(KDL-40BX421 US/CND ONLY)
 
252 
4-266-658-01 
BRACKET, VESA (M6) (GW)
!
  253 
1-838-981-11 
POWER SUPPLY CORD (WITH CORE)
 
254 
4-264-314-01 
COVER, UNDER (GW37)
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
258
259
251
257
257
254
252
256
255
253
 
255 
4-264-316-01 
BRACKET, SP (GW40L)
 
256 
4-264-315-01 
BRACKET, SP (GW40R)
 
257 
1-858-572-11 
LOUDSPEAKER (4.0X10.0CM)
 
258 
1-895-019-11 
H BOARD, MOUNTED
 
259 
1-489-627-11 
SWITCH UNIT
 
 
7-685-647-79 
SCREW, +BVTP2 3X12
 
 
7-685-648-79 
SCREW, +BVTP 3X12 TYPE2 IT-3
 
 
2-580-640-01 
SCREW, +BVTP2 4X16
 
 
4-159-298-01 
SCREW, +PSW M4X10
FOR THE FOLLOWING SERIAL # RANGES: 
KDL-40BX420/40BX421 3000001-5500000
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421 42
SECTION 6 - DISASSEMBLY/PART NUMBER INFORMATION
NOTE: Les composants identifies per un trame et 
une marque 
!
 sont critiques pour la securite. 
Ne les remplacer que par une piece portant le 
numero specifie.
NOTE: The components identified by shading 
and 
!
 mark are critical for safety. Replace only 
with part number specified. 
NOTE: The components identified by a red outline and a   mark contain 
confidential information. Specific instructions must be adhered to whenever 
these components are repaired and/or replaced. 
See Appendix A: Encryption Key Components in the back of this manual. 
E
J
F
M
A
B
C
D
I
L
G
K
H
KDL-46BX420/46BX421 ONLY
 
FOR THE FOLLOWING SERIAL # RANGES: 
 
KDL-46BX420/46BX421  6000001 - 7400000
A   Remove 8 screws from Rear Cover
B   Remove 1 screw from Side Bracket position
C   Remove 1 screw from Terminal Area position
D   Remove 4 screws from Rear Cover
E   Gently lift up Rear Cover from bottom side to detach from Bezel
F   Lift up AC Power Cord and disconnect 1 connector from G3 Board to detach 
from Under Cover
G   Remove 1 screw from Under Cover
H   Remove 1 screw from Left Speaker Bracket to detach from Bezel
I   Remove 2 screws from Speaker to detach from Left Speaker Bracket
J   Release clips and disconnect 1 connector to detach  
H Board from LED Guide
K   Remove 1 screw from Right Speaker Brackets 
 to detach from Bezel
L   Remove 2 screws from Speaker to detach  
from Right Speaker Bracket
M   Lift up Switch Unit and disconnect  
1 connector to detach from Bezel
 
301 
4-270-697-11 
REAR COVER (GW46)   
[302]
 
 
 
(KDL-46BX420 ONLY)
 
301 
4-270-697-01 
REAR COVER (GW46)   
[302]
 
 
 
(KDL-46BX421 ONLY)
 
302 
4-266-658-01 
BRACKET, VESA (M6) (GW)
!
  303 
1-838-981-11 
POWER SUPPLY CORD (WITH CORE)
 
304 
4-266-609-01 
COVER, UNDER (GW46)
 
305 
4-266-611-01 
BRACKET, SP (GW46L)
 
306 
4-266-610-01 
BRACKET, SP (GW46R)
 
307 
1-858-572-11 
LOUDSPEAKER (4.0X10.0CM)
 
308 
1-857-898-21 
H BOARD, MOUNTED
 
309 
1-489-627-11 
SWITCH UNIT
 
 
7-685-647-79 
SCREW, +BVTP2 3X12
 
 
7-685-648-79 
SCREW, +BVTP 3X12 TYPE2 IT-3
 
 
2-580-640-01 
SCREW, +BVTP2 4X16
 
 
4-159-298-01 
SCREW, +PSW M4X10
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
308
309
301
307
307
304
302
306
305
303
(Check the Sony Authorized Servicer Portal a
www.sony.com/asp
 for any additional service related issues for this model.)
FOR THE FOLLOWING SERIAL # RANGES: 
KDL-46BX420/46BX421  6000001 - 7400000
KDL-32BX320/32BX321/32BX420/32BX421/40BX420/40BX421/46BX420/46BX421 43
SECTION 6 - DISASSEMBLY/PART NUMBER INFORMATION
NOTE: Les composants identifies per un trame et 
une marque 
!
 sont critiques pour la securite. 
Ne les remplacer que par une piece portant le 
numero specifie.
NOTE: The components identified by shading 
and 
!
 mark are critical for safety. Replace only 
with part number specified. 
NOTE: The components identified by a red outline and a   mark contain 
confidential information. Specific instructions must be adhered to whenever 
these components are repaired and/or replaced. 
See Appendix A: Encryption Key Components in the back of this manual. 
A
C
F
H
I
G
E
B
K
J
D
A (MAIN) BOARD, G13/G14/G3 (POWER SUPPLY) BOARD AND LCD 
PANEL REMOVAL
KDL-32BX320/32BX321 ONLY
 
FOR THE FOLLOWING SERIAL # RANGES: 
 
KDL-32BX320/32BX321  6000001 - 7400000
A   Remove 4 screws and disconnect 5 connectors from A Board to detach from MB Brackets
B   Release 2 clips and slide-out Side Bracket to detach from A Board
C   Remove 4 screws and disconnect 3 connectors from G13 Board to detach from PSU 
Brackets
D   Remove 2 screws from MB Brackets to detach from Bezel
E   Remove 2 screws from MB Brackets to detach from PSU Bracket Left
F   Remove 2 screws from Vesa Brackets to detach from PSU Brackets
G
  Remove 4 screws from PSU Brackets to detach from  
LCD Panel and Top Frame
H   Remove 2 screws from Bottom Frame to detach from  
LCD Panel
I   Remove 2 screws from Top Frame to detach from  
LCD Panel
J   Slide-out 2 Panel Brackets to detach from Bezel
K   Carefully lift up LCD Panel to remove from Bezel
 
351 
4-270-690-11 
BEZEL (GW32)
 
352 
4-264-319-01 
SUPPORT, PANEL(C) (GW)
 
353 
NA 
LCD PANEL
 
 
FOR ALL LCD PANEL AND TCON BOARD PART NUMBER
 
 
INFORMATION REFER TO THE LCD PANELS SERVICE MANUAL
 
354 
4-264-318-01 
BRACKET, SIDE (US) (GW)
356
357
355
354
353
351
352
(Check the Sony Authorized Servicer Portal a
www.sony.com/asp
 for any additional service related issues for this model.)
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
 
REF. NO.  
PART NO. 
DESCRIPTION 
[ASSEMBLY INCLUDES]
       355 
1-857-903-21 
A BOARD, COMPLETE
  
AFTER REPLACING THE MAIN BOARD OR THE LCD PANEL, 
 
 
YOU MUST UPDATE THE SOFTWARE TO THE LATEST VERSION.
 
356 
1-474-297-12 
G13 BOARD, COMPLETE
*  357 
4-266-636-01 
BRACKET, VESA (GW32)
 
 
2-580-640-01 
SCREW, +BVTP2 4X16
 
 
2-580-592-01 
SCREW, +PSW M3X8
 
 
2-580-599-01 
SCREW, +PSW M4X6
FOR THE FOLLOWING SERIAL # RANGES: 
KDL-32BX320/32BX321 
6000001 - 7400000
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