Sony KDL-40NX720 / KDL-46NX720 / KDL-55NX720 / KDL-60NX720 Service Manual ▷ View online
KDL-40NX720/46NX720/55NX720/60NX720 47
SECTION 5 - FLOW CHARTS AND DIAGRAMS
STANDBY LED BLINKING
Protect
Shutdown.
Standby LED
Blinking
No
Yes
No
Yes
2X
Main Board
3X
4X
No
Yes
5X
Yes
6X
No
7X
Imediately
LCD Panel
TCON
LCD Panel
Yes
No
After a while
Main Board
Check ventilation
G4 Board (40")
G5 Board (46")
G6 Board (55/60")
G4 Board (40")
G5 Board (46")
G6 Board (55/60")
G4 Board (40")
G5 Board (46")
G6 Board (55/60")
G4 Board (40")
G5 Board (46")
G6 Board (55/60")
FIGURE 5-4. 2 PROTECTION SHUTDOWN FLOWCHART
KDL-40NX720/46NX720/55NX720/60NX720 48
SECTION 5 - FLOW CHARTS AND DIAGRAMS
NO PICTURE
No Video
Backlights
turned on?
Unplug LVDS
connector with
unit off. Turn unit
back on
Test patterns
display on
screen?
Yes
No
TCON
(LCD Panel)
Sony logo
appears
momentarily?
No
Main Board
No
TCON
(LCD Panel)
Yes
Yes
Main Board
FIGURE 5-5. NO VIDEO ERROR
KDL-40NX720/46NX720/55NX720/60NX720 49
SECTION 5 - 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)
FIGURE 5-6. VIDEO DISTORTION
KDL-40NX720/46NX720/55NX720/60NX720
50
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 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]
(Check the Sony Authorized Servicer Portal at
http://www.sony.com/asp
website for any additional service related issues.)
1
4-267-497-01
STAND, HEAD(ML9)
(ALL MODELS EXCEPT KDL-60NX720)
1
4-267-504-01
STAND, HEAD(3L9)
(KDL-60NX720 ONLY)
2
4-259-180-02
NECK (ML9)
(KDL-40NX720 ONLY)
2
4-259-183-02
NECK (L9)
(KDL-46NX720 ONLY)
2
4-259-186-02
NECK (LL9)
(KDL-55NX720 ONLY)
2
4-259-187-01
NECK (3L9)
(KDL-60NX720 ONLY)
3
4-267-544-01
STAND, BASE (ML1)
(KDL-40NX720 ONLY)
3
4-267-547-01
STAND, BASE(L1)
(KDL-46NX720 ONLY)
3
4-267-550-01
STAND, BASE(LL1)
(KDL-55NX720 ONLY)
3
4-267-551-01
STAND, BASE(3L1)
(KDL-60NX720 ONLY)
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)
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
2-580-608-01
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
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