Sony KDL-40EX645 / KDL-46EX641 / KDL-46EX645 / KDL-50EX645 / KDL-55EX645 Service Manual ▷ View online
KDL-40EX645/46EX641/46EX645/50EX645/55EX645 16
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO VIDEO
No Video
Backlights
turned on?
Unplug LVDS
connector at
TCON while unit
is running. This
may need to be
done more than
once
Any flashes
seen on
screen?
screen?
Yes
No
Any OSD
graphics
present?
No
Main Board*
No
LCD Panel*
Yes
Yes
Main Board*
LCD Panel*
NO VIDEO FLOWCHART
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 18
.
KDL-40EX645/46EX641/46EX645/50EX645/55EX645 17
SECTION 3 - FLOW CHARTS AND DIAGRAMS
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 18
.
Video Distortion
Is distortion
across entire
screen?
Any horizontal
lines?
No
No
Yes
Yes
Improper of
missing colors?
Yes
Main Board*
No
Vertical lines
or bars?
No
Yes
Lines move
when wide-mode
changed?
Yes
No
LCD Panel*
TCON Board*
Main Board*
LCD Panel*
Any single or
isolated vertical
lines?
Yes
LCD Panel*
More than 1
vertical band?
No
Yes
LCD Panel*
TCON Board*
VIDEO DISTORTION FLOWCHART
KDL-40EX645/46EX641/46EX645/50EX645/55EX645
18
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.
*
Items marked with an asterisk are not stocked since
they are seldom required for routine service. Expect
some delay when ordering these components.
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.
SECTION 4 - DISASSEMBLY/PART NUMBER INFORMATION
TABLE-TOP STAND REMOVAL
A Remove 3 screws from the Table-Top Stand, then lift up the LCD TV and gently place it face down onto a soft cloth.
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
(Check the Sony Authorized Servicer Portal at
http://www.sony.com/asp
website for any additional service related issues).
1
4-415-089-01
STAND, HEAD (ML9)
2
4-298-271-01
NECK TP (M)
3
4-415-102-01
STAND, BASE TP (ML)
(KDL-40EX645 ONLY)
3
4-415-097-01
STAND, BASE TP (L)
(KDL-46EX641/46EX645 ONLY)
3
4-444-059-01
STAND, BASE TP (50NK2)
(KDL-50EX645 ONLY)
3
4-415-092-01
STAND, BASE TP (LL)
(KDL-55EX645 ONLY)
1
2
3
Soft Cloth
A
▲
4-421-427-01
SCREW, +PSW M5X16 LOCK
(SCREWS TO ATTACH HEAD BRACKET AND STAND BASE TO NECK)
(SCREWS TO ATTACH TABLE-TOP STAND TO LCD TV)
For product protection and safety reasons, Sony strongly recommends
that you use the screws provided with the TV.
CAUTION: These screws cannot be used to secure the TV to
the Wall Mount Brackets.
KDL-40EX645/46EX641/46EX645/50EX645/55EX645
19
SECTION 4 - 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 at
http://www.sony.com/asp
website for any additional service related issues).
REAR COVER REMOVAL
ALL MODELS EXCEPT KDL-50EX645
CAUTION:
Hold down the Rear Cover as shown in the steps below to avoid deforming or damaging the hooks in the Rear
Cover and Bezel.
The portion of the Rear Cover near the Switch Unit is very fragile. When lifting this section, support the area to avoid
breaking the cover.
Trying to remove the Rear Cover as shown in this illustration will break the hooks securing it to the Bezel.
Rear Cover hook
Bezel hook
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
A To avoid damaging the AC Power Supply
Cord, remove 1 screw from the AC Cover
and disconnect the AC Power Cord.
Hold the
Power Supply Cord
Power Supply Cord
B Remove the remaining screws from the
Rear Cover.
18 from KDL-40EX645
20 from KDL-46EX641/46EX645
22 from KDL-55EX640
C Gently hold down the Rear Cover from the
center, then carefully start to lift the Rear
Cover from the bottom to create clearance
between the Bezel and the Rear Cover.
D Gently hold down the Rear Cover as shown in the steps below, then grasp the inside bottom corner and carefully lift
the Rear Cover to release the hooks.
USE CAUTION
to avoid breaking this
area of the Rear Cover
to avoid breaking this
area of the Rear Cover
E Lift the Rear Cover from the bottom and
push forward to release the top hooks.
51
4-409-316-02
REAR COVER (40NK2)
[52]
(KDL-40EX645 ONLY)
51
4-409-325-01
REAR COVER (46NK2)
[52]
(KDL-46EX641/46EX645 ONLY)
51
4-409-328-01
REAR COVER (55NK2)
[52]
(KDL-55EX645 ONLY)
52
4-409-322-01
BRACKET, VESA (NK2)
!
53
1-839-679-11
CORD, POWER (WITH CONNECTOR)
54
4-299-528-01
AC COVER
△
4-256-393-01
SCREW, +PSW M3X6 W12
□
2-580-639-01
SCREW, +BVTP 4X12 TYPE2 IT-3
◇
4-159-298-01
SCREW, +PSW M4X10
●
4-400-043-01
JOINT, SCREW
(SCREWS USED WHEN STAND IS ATTACHED. NOT USED WITH WALL
MOUNTS)
○
7-685-646-79
SCREW, +BVTP 3X8 TYPE2 IT-3
ALL MODELS EXCEPT KDL-50EX645
52
51
54
53
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