KDL-40NX720, KDL-40NX723, KDL-46NX720, KDL-46NX723, KDL-55NX720, KDL-55NX723, KDL-60NX720, KDL-60NX723 - Sony TV Service Manual (repair manual). Page 3

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

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