Sony KDL-32BX355 / KDL-40BX455 / KDL-46BX455 Service Manual ▷ View online
KDL-32BX355/40BX455/46BX455 13
SECTION 3 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect
Shutdown.
Standby LED
Blinking
No
Yes
No
Yes
2X
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*
Main Board*
PROTECTION SHUTDOWN FLOWCHART
*For Part Number information, refer to
“Section 4 - Disassembly/Part Number Information” on page 16
.
KDL-32BX355/40BX455/46BX455 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
Inverter Board
or 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-32BX355/40BX455/46BX455 15
SECTION 3 - FLOW CHARTS AND DIAGRAMS
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*
Main Board*
LCD Panel*
Any single or
isolated vertical
lines?
Yes
LCD Panel*
More than 1
vertical band?
No
Yes
LCD Panel*
VIDEO DISTORTION FLOWCHART
*For Part Number information, refer to
“Section 4 - Disassembly/Part Number Information” on page 16
.
KDL-32BX355/40BX455/46BX455
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: 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 AND REAR COVER REMOVAL
A Gently place TV face down onto a soft cloth and remove 3 screws from Table-Top Stand.
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
1
4-423-357-01
REAR COVER (32APOT)
[2]
(KDL-32BX355 ONLY)
1
4-423-358-01
REAR COVER (40APOT)
[2]
(KDL-40BX455 SN# 8500001 - 8970000 ONLY)
1
4-423-358-02
REAR COVER (40APOT)
[2]
(KDL-40BX455 SN# 8970001 - 9000000 ONLY)
1
4-423-359-01
REAR COVER (46APOT)
[2]
(KDL-46BX455 ONLY)
2
4-410-252-01
BRACKET, VESA (APOT)
3
X-2584-208-1
STAND ASSEMBLY (32APOT)
(KDL-32BX355 ONLY)
3
X-2584-209-1
STAND ASSEMBLY (40APOT)
(KDL-40BX455 ONLY)
3
X-2584-210-1
STAND ASSEMBLY (46APOT)
(KDL-46BX455 ONLY)
▲
2-580-608-01
SCREW, +PSW M5X16
(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.
△
2-580-640-01
SCREW, +BVTP2 4X16
●
2-580-592-01
SCREW, +PSW M3X8
○
4-159-298-01
SCREW, +PSW M4X10
3
2
1
B Remove screws from Rear Cover.
15 from KDL-32BX355 Only
17 from KDL-40BX455 Only
19 from KDL-46BX455 Only
CAUTION: Do not damage the Power
Board Connector and AC Power Cord when
removing the Rear Cover.
C Carefully lift Rear Cover from bottom side and push
forward to release top hooks.
D Hold Power Supply Cord while lifting up
Rear Cover, then pass Power Supply Cord
through Rear Cover opening.
Do not pull the AC Power Cord or damage
the connector on the Power Board.
Click on the first or last page to see other KDL-32BX355 / KDL-40BX455 / KDL-46BX455 service manuals if exist.