Sony KDL-32HX755 / KDL-40HX755 / KDL-46HX755 / KDL-55HX755 Service Manual ▷ View online
KDL-32HX755/40HX755/46HX755/55HX755 16
SECTION 3 - FLOW CHARTS AND DIAGRAMS
Video Distortion
Is distortion
across entire
screen?
Any horizontal
lines?
No
No
Yes
Yes
Improper or
missing colors?
Yes
Main Board*
No
Vertical lines
or bars?
No
Yes
Lines
move when
wide-mode
changed?
Yes
No
TCON*
(LCD Panel)
Main Board*
LCD Panel*
Any single or
isolated vertical
lines?
Yes
LCD Panel*
More than 1
vertical band?
No
Yes
TCON*
(LCD Panel)
VIDEO DISTORTION
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 18
.
KDL-32HX755/40HX755/46HX755/55HX755 17
SECTION 3 - FLOW CHARTS AND DIAGRAMS
NO 3D VIEWING
LOCATED ON LOWER BEZEL NEAR SONY LOGO
3D Not Working
Use video or still
camera to view IR
LED’s on IR
transmitter
IR LED’s lighting?
No
Double images
displayed on
screen?
Yes
Main Board*
No
Yes
Press “3D” button on
remote commander
and select
“Simulated 3D”
SYNC EMITTER
LED’s
Shutter Glasses
View image with
known working
pair of shutter
glasses.
Double images
become one?
Yes
3D OK
No
3D IR Emitter
Board*
NO 3D FLOWCHART
*For Part Number information, Refer to
“Section 4 - Disassembly/Part Number Information” on page 18
.
KDL-32HX755/40HX755/46HX755/55HX755
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: 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]
1
A-1869-137-A
HEAD PACKING (M9)
(KDL-32HX755 ONLY)
1
A-1869-136-A
HEAD PACKING (ML9)
(KDL-40HX755/46HX755/55HX755 ONLY)
2
A-1869-142-A
NECK TP(M)
3
A-1869-141-A
STAND, BASE TPF (M)
(KDL-32HX755 ONLY)
3
A-1869-140-A
STAND, BASE TPF (ML)
(KDL-40HX755 ONLY)
3
A-1869-139-A
STAND, BASE TPF (L)
(KDL-46HX755 ONLY)
3
A-1869-138-A
STAND, BASE TPF (LL)
(KDL-55HX755 ONLY)
▲
4-421-427-01
SCREW, +PSW M5X16 LOCK
(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
KDL-32HX755/40HX755/46HX755/55HX755
19
SECTION 4 - DISASSEMBLY/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: Encryption Key Components in the back of this manual.
REAR COVER REMOVAL
CAUTIONS:
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]
51
4-418-664-41
REAR COVER (32 ZEU) A
[52]
(KDL-32HX755 ONLY)
51
4-419-377-41
REAR COVER (40 ZEU) A
[52]
(KDL-40HX755 ONLY)
51
4-419-379-41
REAR COVER (46 ZEU) A
[52]
(KDL-46HX755 ONLY)
51
4-297-474-01
REAR COVER BARE (55 ZEU)
[52]
(KDL-55HX755 ONLY)
52
4-297-468-01
BRACKET, VESA
53
4-400-419-01
LABEL, SIDE TERMINAL (32ZEU)
(KDL-32HX755 ONLY)
ORDER THIS PART WHEN REPLACING THE REAR COVER
53
4-400-427-01
LABEL, SIDE TERMINAL
(KDL-40HX755/46HX755/55HX755 ONLY)
ORDER THIS PART WHEN REPLACING THE REAR COVER
54
4-400-432-11
LABEL, UNDER TERMINAL
ORDER THIS PART WHEN REPLACING THE REAR COVER
* 55
4-297-989-01
AC COVER
!
56
1-846-001-11
CORD, POWER (WITH CONNECTOR)
△
4-159-298-01
SCREW, +PSW M4X10
■
7-685-648-79
SCREW +BVTP 3X12 TYPE2 IT-3
□
2-580-639-01
SCREW, +BVTP 4X12 TYPE2 IT-3
◆
4-400-043-01
JOINT, SCREW
(SCREWS USED WHEN STAND IS ATTACHED -
NOT USED WITH WALL MOUNTS)
◇
4-256-393-01
SCREW, +PSW M3X6 W12
52
51
55
56
53
54
A To avoid damaging the AC Power Supply Cord,
remove the screw from the AC Cover and
disconnect the AC Power Cord.
Hold the
Power Supply Cord
B Remove the remaining screws from the Rear
Cover.
19 from KDL-32HX757/40HX757 Only
21 from KDL-46HX757/55HX757 Only
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 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
E Lift the Rear Cover from the bottom and push
forward to release the top hooks.
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