Sony KDL-40EX640 / KDL-46EX640 / KDL-55EX640 Service Manual ▷ View online
KDL-40EX640/46EX640/55EX640 13
SECTION 3 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect
Shutdown.
Standby LED
Blinking
No
Yes
No
Yes
2X
Main Board*
3X
5X
No
Yes
LCD Panel*
6X
Yes
7X
No
Immediately
After a While
Check room
temperature and
ventilation around
unit
Power Supply
Board*
Main Board*
“SONY” logo
appears before
shutdown?
Yes
No
LCD Panel*
Power Supply
Board*
PROTECTION SHUTDOWN FLOWCHART
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 16
.
KDL-40EX640/46EX640/55EX640 14
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 16
.
KDL-40EX640/46EX640/55EX640 15
SECTION 3 - FLOW CHARTS AND DIAGRAMS
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 16
.
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-40EX640/46EX640/55EX640
16
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-40EX640 ONLY)
3
4-415-097-01
STAND, BASE TP (L)
(KDL-46EX640 ONLY)
3
4-415-092-01
STAND, BASE TP (LL)
(KDL-55EX640 ONLY)
▲
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.
1
2
3
Soft Cloth
A
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