Sony KDL-40EX725 Service Manual ▷ View online
KDL-40EX725 39
SECTION 5 - FLOW CHARTS AND DIAGRAMS
Is Audio
Present?
Check
HP Audio Output
No
Missing or Distorted Audio
Is Audio
Missing or Distorted
on
All Inputs?
No
Yes
Yes
Check
Speaker Resistance at
(across Speakers)
& Connections
8 ohms
&
Connections
OK?
No
Check
AU12V from Power Supply
Is
12V
Present?
Yes
Yes
Replace
Speaker(s)
No
No
Yes
Is
External Device
& connection OK?
Repair External
Device
Check
External Device
and Connections
Swap Devices and
connections
Replace
Main Board
Replace
Power Supply
Board
Replace
Main Board
Replace
Main Board
FIGURE 5-6. AUDIO ERROR
KDL-40EX725
40
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 6 - DISASSEMBLY/PART NUMBER INFORMATION
TABLE-TOP STAND ASSEMBLY REMOVAL
A Remove 3 screws from Table-Top Stand Assembly
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
1
A-1823-142-A
STAND, HEAD(ML9)
2
4-259-180-02
NECK (ML9)
3
A-1823-143-A
STAND, BASE(ML2)
4
4-259-541-01
USER SCREW ST
(SCREWS TO ATTACH HEAD STAND AND BASE STAND TO NECK)
5
2-580-608-01
SCREW, +PSW M5X16
(SCREWS TO ATTACH TABLE-TOP STAND TO LCD TV)
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
B Lift up TV set to detach from Table-Top Stand Assembly
C Gently place the LCD TV set face down onto a soft cloth
1
2
3
5
4
4
A
C
Soft Cloth
B
KDL-40EX725
41
SECTION 6 - 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.
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REAR COVER AND AC COVER REMOVAL
CAUTION:
Do not damage the Power Board Connector and Power Supply Cord when removing the Rear Cover.
Refer to
“Removing the Power Cord from the Rear Cover” on page A-1
for complete instructions.
A Remove 4 screws from Rear Cover
B Remove 2 screws from Rear Cover
C Remove 1 screw and release clips from AC Cover to detach from Rear Cover
(Refer to
“Appendix A - Removing the Rear Cover” on page A-1
)
D Remove 2 screws from Rear Cover
E Remove 1 screw from Terminal Area position
F Remove 7 screws from Rear Cover
G Gently lift up Rear Cover from bottom side to detach from Bezel
4-256-393-01
SCREW, +PSW M3X6 W12
7-685-648-79
SCREW, +BVTP 3X12 TYPE2 IT-3
2-580-639-01
SCREW, +BVTP 4X12 TYPE2 IT-3
4-257-907-01
JOINT, STAND
4-268-126-02
SCREW, ORNAMENTAL M6X12
51
4-266-604-13
REAR COVER BARE (40 SYR)
52
4-266-269-01
COVER, AC (M)
51
52
A
C
B
D
F
G
E
KDL-40EX725
42
SECTION 6 - 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.
SWITCH UNIT AND SPEAKERS REMOVAL
A Lift up Switch Unit and disconnect 1 connector to detach from Bezel
B Lift up AC Power Cord and disconnect 1 connector to detach from LCD Panel
C Slide-out right side Speaker to detach from Bezel
D Slide-out left side Speaker to detach from Bezel
D Slide-out left side Speaker to detach from Bezel
101
1-489-582-41
SWITCH UNIT
102
1-858-594-12
LOUDSPEAKER (3X15CM)
103
1-838-270-12
POWER-SUPPLY CORD (WITH CONN.)
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
REF. NO.
PART NO.
DESCRIPTION
[ASSEMBLY INCLUDES]
101
102
103
102
A
C
B
D
Click on the first or last page to see other KDL-40EX725 service manuals if exist.