DOWNLOAD Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual ↓ Size: 5.85 MB | Pages: 74 in PDF or view online for FREE

Model
KDL-40NX720 KDL-40NX723 KDL-46NX720 KDL-46NX723 KDL-55NX720 KDL-55NX723 KDL-60NX720 KDL-60NX723
Pages
74
Size
5.85 MB
Type
PDF
Document
Service Manual
Brand
Device
TV
File
kdl-40nx720-kdl-40nx723-kdl-46nx720-kdl-46nx723-kd.pdf
Date

Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual ▷ View online

SEGMENT.:  3a-1
MODEL
KDL-40NX720
KDL-40NX723
PART NO. :  9-888-129-0
KDL-46NX720 
KDL-46NX723
KDL-55NX720
KDL-55NX723
KDL-60NX720
KDL-60NX723
NO
SUFFIX
DATE
SUPP/CORR
DESCRIPTION
1
-01
2011/2
--
1st Issue
SEGMENT 3 1
MODEL
COMMANDER
DEST
SEGMENT.:  3a-1
KDL-40NX720
RM-GD019
SOGUL , South Africa,Singapore, Indonesia,
Vietnam, Phillipines, India, Thailand, Malaysia
MODEL
COMMANDER
DEST
KDL-55NX720
RM-GD019
SOGUL , South Africa,Singapore, Indonesia,
Vietnam., Phillipines, Thailand, Malaysia
p
y
Australia, New Zealand, Hong Kong
KDL-40NX723
RM-GD019
Saudi Arabia, Nigeria
KDL-46NX720
RM-GD019
SOGUL , South Africa,Singapore, Indonesia,
Vietnam., Phillipines. India, Thailand, Malaysia
,
p
,
,
y
Australia, New Zealand, Hong Kong
KDL-55NX723
RM-GD019
Saudi Arabia, Nigeria
KDL-60NX720
RM-GD019
SOGUL , South Africa,Singapore, Indonesia,
Vietnam., Phillipines. Thailand, Malaysia
KDL 60NX723
Australia, New Zealand, Hong Kong
KDL-46NX723
RM-GD019
Saudi Arabia, Nigeria
KDL-60NX723
RM-GD019
Saudi Arabia, Nigeria
TABLE OF CONTENTS
Section Title 
Page
Section Title 
Page
KDL- 40, 46, 55, 60 NX720
RM-GD019
KDL- 40, 46, 55, 60 NX723
RM-GD019
1. SAFETY NOTES 
1-1.
Caution Handling of LCD Panel ...........…………….............................
3
1-2.  
Safety Check Out ......................................……………........................
3
1-3. Leakage Test ......................................................................................
3
1-4. 
How to Find a Good Earth Ground……………………………………….
4
1-5. Warning and Caution ..........................................................................
4
4. SERVICE ADJUSTMENTS 
4-1. Accessing Self Diagnostic Menu ......................................................... 32
4-2. Accessing Service Mode ....................................................................
33
4-3. 
Transistion of .each module in Service Mode...................................... 34
4-4. Change data by Service Model (Chassis & VPC module)
34
4-5. Change data by Service Model (Digital Service Mode)
35
1-6. 
Lead Free Information ........................................................................
4
1-7. Handling the FLEXIBLE FLAT CABLE (FFC) 
5
1-8. 
How to release Cover AC ...................................................................
6
1-9. 
Information on Frenel Lens .................................................................
7
1-10. 
Attachment method Neck to Stand Base 
7
2 SELF DIAGNOSTIC FUNCTION
4-6. 
White Balance Adjustment................................................................... 36
4-7. 
Restore White Balance........................................................................ 37
4-8. Change Emitter Output........................................................................ 37
4-9. Viewing Vcom Test Pattern.................................................................
38
4-10. REC 
Setting......................................................................................... 39
4-10. Set 
to 
Shipping Condition....................................................................
40
4-11. Remote 
Commander 
Function............................................................. 40
2. SELF DIAGNOSTIC FUNCTION 
2-1. 
Overview of Control Buttons ...............................................................
8
2-2. LED 
Display Specification ...................................................................
8
2-3. LED 
Display Control ...........................................................................
8
2-4. LED 
Pattern 
........................................................................................
8
2-5. Standby Led Error Display ..................................................................
9
2-6. Triage Chart ........................................................................................ 10
4-12. 
Index Flow of Service Control.............................................................. 40
5. DIAGRAMS 
5-1. Block 
Diagram ....................................................................................
42
5-1-1. BAT-L .................................................................................................
42
5-2. Connector 
Diagram……………………………………….. ..................... 43
5-2-1
KDL-40NX720/723
43
3. TROUBLE SHOOTING 
3-1.
Power Problem ...................................................................................
11
3-2.
Standby LED Blinking
11
3-2-1. 2 Times Blinking........................................………………….................
11
3-2-2. 3 Times Blinking........................................………………….................
12
3-2-3 4 Times Blinking
13
5-2-1.  KDL-40NX720/723............................................................................... 43
5-2-2. KDL-46NX720/723............................................................................... 44
5-2-3. KDL-55NX720/723............................................................................... 45
5-2-4. KDL-60NX720/723............................................................................... 46
5-3. Wire 
Dressing ..................................................................................... 47
5-3-1. KDL-40NX720/723............................................................................... 47
5-3-2. KDL-46NX720/723............................................................................... 48
5 3 3
KDL 55NX720/723
49
3 2 3. 4 Times Blinking........................................………………….................
13
3-2-4. 4 Times Blinking.......................................…………………..................
13
3-2-5. 5 Times Blinking........................................………………….................
14
3-2-6. 6 Times Blinking........................................………………….................
15
3-2-7. 6 Times Blinking........................................………………….................
15
3-2-8. 7 Times Blinking........................................………………….................
16
3-2-9. 8 Times Blinking........................................………………….................
16
3 2 10 10
1
5-3-3.  KDL-55NX720/723............................................................................... 49
5-3-4. KDL-60NX720/723............................................................................... 50
5-4. 
Circuit Board Location ........................................................................
52
5-4-1. KDL-40NX720/723............................................................................... 52
5-4-2. KDL-46NX720/723............................................................................... 52
5-4-3. KDL-55NX720/723............................................................................... 46
5-4-4. KDL-60NX720/723............................................................................... 52
3-2-10. 10 Times Blinking. ........................................………………….............
17
3-3.
Power (Green) Led Blinking................................................................. 17
3-4.
No Picture............................................................................................ 19
3-5.
No Sound…………………………………………………………………… 20
3-6.
TV Commander and Buttons Malfunction............................................ 20
3-7.
Network Malfunction............................................................................
23
3-8.
Camera Malfunction............................................................................. 25
6. DISASSEMBLY, EXPLODED VIEWS AND OTHER PARTS 
6-1. KDL-40NX720/723............................................................................... 53
6-2. KDL-46NX720/723............................................................................... 56
6-3. KDL-55NX720/723............................................................................... 59
6-4. KDL-60NX720/723............................................................................... 62
6-6.
Other Parts .....................................................……………………….... 65
3 8.
Camera Malfunction............................................................................. 25
3-9.
3D Malfunction..................................................................................... 26
3-10.
HDD-Rec Malfunction.......................................................................... 27
3-11.
Skype Troubleshooting........................................................................ 29
3-12.
Troubleshooting Reference.................................................................
30
6 6. 
Other Parts .....................................................……………………….... 65
6-6-1. KDL-40NX720/723 .............................................................................. 65
6-6-2. KDL-46NX720/723 .............................................................................. 66
6-6-3. KDL-55NX720/723………………………………………….....................
67
6-6-4. KDL-60NX720/723……………………………. ..............................…… 68
-2-
SAFETY NOTES
SECTION 1
KDL- 40, 46, 55, 60 NX720
RM-GD019
KDL- 40, 46, 55, 60 NX723
RM-GD019
1-1. Caution Handling of LCD Panel
When repairing the LCD Panel, make sure you are grounded with a wrist band.
When repairing the LCD Panel on the wall, the panel must be secured using the 4 
mounting holes on the rear cover.
1) Do not press the panel or frame edge to avoid the risk of electric shock.
2) Do not scratch or press on the panel with any sharp objects.
3)Check all control knobs, shields, covers, ground straps and mounting 
hardware have been replaced. Be absolutely certain you have replaced all 
the insulators.
4) Look for unauthorized replacement parts, particularly transistors that were 
installed during a previous repair. Point them out to the customer and 
recommend their replacement.
3) Do not leave the module in high temperature or in areas of high humidity for 
an extended period of time.
4) Do not expose the LCD panel to direct sunlight.
5) Avoid contact with water. It may cause short circuit within the module.
6) Disconnect the AC power when replacing the backlight (CCFL) or
inverter circuit. (High voltage occurs at the inverter circuit at 650Vrms)
) Al
l
h LCD
l i h
f l h
i l
5) Look for parts which, though functioning show obvious signs of deterioration. 
Point them out to the customer and recommend their replacement.
6) Check the line cords for cracks and abrasion.  Recommend the replacement 
of any such line cord to the customer.
7) Check the antenna terminals, metal trim, metallized knobs, screws and all 
other exposed metal parts for AC leakage. Check leakage test as described 
7) Always clean the LCD panel with a soft cloth material.
8) Use care when handling the wires or connectors of the inverter circuit.  
Damaging the wires may cause a short circuit.
9) Protect the panel from ESD to avoid damaging the electronic circuit
(C-MOS).
10) During the repair, DO NOT leave the Power On or Burn-in period for more than 
1 hour while the TV is face down on a cloth
next.
8. For safety reasons, repairing the Power board and/or Inverter board is prohibited.
1-3. Leakage Test
The AC leakage from any exposed metal part to earth ground and from all exposed 
metal parts to any exposed metal part having a return to chassis must not exceed
1 hour while the TV is face down on a cloth.
metal parts to any exposed metal part having a return to chassis must not exceed 
0.5mA (500 microamperes).
Leakage current can be measured by any one of the three methods:-
1. A commercial leakage tester such as the SIMPSON 229 or RCA WT-540A. 
Follow the manufacturers instructions to use those instructions.
2. A battery-operated AC milliampmeter. The DATA PRECISION 245 digital  
multimeter is suitable for this job
multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or battery  
operated AC voltmeter. The 'limit' indication is 0.75V so analog meters must  
have an accurate low voltage scale. The SIMPSON'S 250 and SANWA 
SH-63TRD are examples of passive VOMs that are suitable. Nearly all  
battery operated digital multimeters that have a 2 VAC range are suitable. 
(see Figure 1.)
Figure 1 TV is face down on a cloth during reparing
1-2. Safety Check-Out
After correcting the original service problem, perform the following safety checks 
before releasing the set to the customer:-
1) Check the area of your repair for unsoldered or poorly soldered connections.  
(
g
)
Figure 1. TV is face down on a cloth during reparing
Check the entire board surface for solder splashes and bridges.
2) Check the interboard wiring to ensure that no wires are pinched or contact 
high-wattage resistors.
Figure 2. AC voltmeter to check AC leakage
-3-
Page of 74
Display

Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual ▷ Download

  • DOWNLOAD Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual ↓ Size: 5.85 MB | Pages: 74 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 in PDF for free, which will help you to disassemble, recover, fix and repair Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 TV. Information contained in Sony KDL-40NX720 / KDL-40NX723 / KDL-46NX720 / KDL-46NX723 / KDL-55NX720 / KDL-55NX723 / KDL-60NX720 / KDL-60NX723 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.