Sony KDL-40R450A / KDL-46R450A Service Manual ▷ View online
KDL-40R450A/46R450A 17
SECTION 3 - REPAIR INFORMATION
REPLACING THE POWER SUPPLY BOARD
1. Remove screws to detach Bracket, then unhook Power Cord from Rear
Cover clip.
2. Remove 7 screws from Power Supply Board.
3. Tilt board to reach Power Cord connector and disconnect.
4. Disconnect all the remaining connectors to detach from the Rear Cover.
5. Install the new Power Supply Board.
6. Update the Software.
After ALL repairs UPDATE the SOFTWARE to the latest version.
Instructions are included with the Software package on the
Instructions are included with the Software package on the
Sony
Authorized Service Portal
website.
a. Insert the USB device with the latest Software into the TV.
b. Press
POWER
to turn on the TV.
c. Wait until the Software update is complete.
REMOVING THE SWITCH UNIT
1. Lift the black locking bar and pull FFC cable to release.
2. Locate gap between Switch Unit and Rear Cover, pull upwards to detach.
3. Install the new Switch Unit.
REMOVING THE SPEAKERS
1. Pull Speakers up and disconnect the connectors to detach.
KDL-40R450A/46R450A 18
SECTION 3 - REPAIR INFORMATION
REMOVING THE BEZEL AND H BOARD ASSEMBLY
1. Remove screws and detach the Power Cord bracket.
2.
Remove 4 screws from Speaker Baffle and 1 screw from Bracket Stand.
3.
Firmly lift up the Speaker Baffle to release from the bottom of the TV. Tilt
upward and place on Rear Cover.
upward and place on Rear Cover.
4.
Remove Harness Assembly from Speaker Baffle to fully release it from
Rear Cover.
Rear Cover.
5. Disconnect H Board connector.
6. Gently turn the TV over and then increase gap between the LCD Panel
and Bezel to detach.
7. Carefully lift up and unhook the Bezel to separate.
CAUTION: To avoid damaging the LCD Panel, use caution when pulling
the Bezel apart from the Double-Sided Tape.
KDL-40R450A/46R450A 19
Components not identified by a part number or description
are not stocked because they are seldom required for routine
service.
The component parts of an assembly are indicated by the reference numbers in
the far right column of the parts list and within the dotted lines of the diagram.
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)
SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
KDL-40R450A/46R450A
1
4-459-446-01
LOWER COVER (COVER, UNDER - 40FANF) (KDL-40R450A ONLY)
1
4-459-473-01
LOWER COVER (COVER, UNDER - 46FANF) (KDL-46R450A ONLY)
2
4-459-511-01
PLASTIC, STAND (ML1F)
3
1-858-888-11
LOUD SPEAKER (L) 40X100MM
4
4-459-445-01
BRACKET, SP (40FANF)
(KDL-40R450A ONLY)
4
4-459-472-01
BRACKET, SP (46FANF)
(KDL-46R450A ONLY)
5
1-895-371-11
A BOARD, COMPLETE
AFTER REPLACING THE MAIN BOARD, YOU MUST
UPDATE THE SOFTWARE TO THE LATEST VERSION.
6
4-459-477-01
BRACKET, STAND A (40FANF)
7
4-459-475-01
BRACKET, VESA (FANF)
(KDL-40R450A ONLY)
7
4-459-475-11
BRACKET, VESA (FANF)
(KDL-46R450A ONLY)
! 8
1-846-638-11
POWER-SUPPLY CORD
(KDL-40R450A ONLY)
! 8
1-846-638-31
POWER-SUPPLY CORD
(KDL-46R450A ONLY)
9
1-858-888-21
LOUD SPEAKER (R) 40X100MM
10
1-474-487-11
GL4 BOARD, COMPLETE
(KDL-40R450A ONLY)
10
1-474-488-11
GL5 BOARD, COMPLETE
(KDL-46R450A ONLY)
11
1-492-329-11
SWITCH UNIT
12
4-459-474-01
BRACKET, VESA TOP A (46FANF) (KDL-46R450A ONLY)
13
A-1932-053-A
BEZEL (40FANFB MR)
(KDL-40R450A ONLY)
13
A-1932-061-A
BEZEL (46FANFB MR)
(KDL-46R450A ONLY)
14
NA
LCD PANEL
FOR ALL LCD PANEL AND TCON BOARD PART NUMBER
INFORMATION REFER TO THE LCD PANELS SERVICE MANUAL.
REF. NO.
PART NO.
DESCRIPTION
13
10
12
12
9
1
2
7
6
7
8
5
4
6
3
11
14
H Board
is included
with the Bezel
KDL-40R450A/46R450A 20
SECTION 4 - EXPLODED VIEW/PART NUMBER INFORMATION
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)
CONNECTORS
KDL-40R450A
REF. NO.
PART NO.
DESCRIPTION
KDL-46R450A
REF. NO.
PART NO.
DESCRIPTION
51
1-910-107-50
FFC CABLE 40 MB-KEY 6P
52
1-910-107-47
CONNECTOR ASSEMBLY 40/46 PSU-LED
53
1-910-107-44
GROUND CABLE 40 MB-PSU (M)
54
1-910-107-46
GROUND CABLE 40 MB-S0URCE
55
1-910-107-48
(LVDS) FFC CABLE 40 MB-TCON 51P
56
1-910-107-49
FFC CABLE 40 MB-IR 10P
57
1-910-107-43
CONNECTOR ASSEMBLY 40 MB-SP LR 4P
58
1-910-107-42
CONNECTOR ASSEMBLY 40 MB-PSU 14P
59
1-910-107-45
GROUND CABLE 40 MB-PSU (L)
101
1-910-107-67
FFC CABLE 46 MB-KEY 6P
102
1-910-107-47
CONNECTOR ASSEMBLY 40/46 PSU-LED
103
1-910-107-62
GROUND CABLE 46 MB-PSU (M)
104
1-910-107-64
GROUND CABLE 46 MB-S0URCE
105
1-910-107-65
(LVDS) FFC CABLE 46 MB-TCON 51P
106
1-910-107-61
CONNECTOR ASSEMBLY 46 MB-SP LR 4P
107
1-910-107-66
FFC CABLE 46 MB-IR 10P
108
1-910-107-60
CONNECTOR ASSEMBLY 46 MB-PSU 14P
109
1-910-107-63
GROUND CABLE 46 MB-PSU (L)
51
58
59
54
55
56
53
52
57
101
108
109
104
105
107
103
102
106
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