KLV-32D300A, KLV-40D300A, KLV-46D300A (serv.man2) - Sony TV Service Manual (repair manual). Page 3

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Safety Check Out/Leakage Test ............................................ 3
Caution Handling ...................................................................... 4
Lead free information ............................................................... 4
Self Diagnostic Function ........................................................ 5
Basic Troubleshooting ............................................................. 8

1-1.

Rear Cover Removal .................................................. 20

1-2.

Vesa Bracket Assembly Removal .............................. 22

1-3.

H1 Board Removal .................................................... 24

1-4.

U2 Board Removal .................................................... 24

1-5.

G1H Board Removal (KLV-32D300A) ..................... 25

1-6.

G3 and D1 Boards Removal (KLV-40/46D300A) .... 26

1-7.

BH Board Removal .................................................... 26

1-8.

DTT Shield, UT and BG1 Boards Removal ............. 27

1-9.

D2 Board Removal (KLV-46D300A) ........................ 28

1-10. Inlet, AC (with noise filter) Removal

(KLV-32D300A) ........................................................ 28

1-11. Inlet, AC (with noise filter) Removal

(KLV-40/46D300A) ................................................... 29

1-12. Speaker, H3 and H4 Boards Removal ....................... 30
1-13. LCD Panel Removal .................................................. 31

2-1.

Overall View (KLV-32D300A) .................................. 33

2-2.

"32 Top of G1H (1) .................................................... 33

2-3.

"32 Bottom of G1H (2) .............................................. 33

2-4.

"32 Around of AC Inlet (3) ........................................ 34

2-5.

"32 Around T-Con (4) ................................................ 34

2-6.

"32 Around Left SP (5) .............................................. 34

2-7.

"32 Around Bottom of Panel Centre (6) .................... 34

2-8.

Overall View (KLV-40D300A) .................................. 35

2-9.

"40 Top of G3 and D1 Board (7) ............................... 35

2-10. "40 Bottom of G3 Board (8) ...................................... 35
2-11. "40 Around of BH Board and T-Con (9) ................... 36
2-12. "40 Around Bottom of Panel Centre (10) ................. 36
2-13. "40 Around Left Speaker (11) ................................... 36
2-14

Overall View (KLV-46D300A) .................................. 37

2-15. "46 Top of G3 and D1 Board (12) ............................. 37
2-16. "46 Around Right Speaker (13) ................................. 37
2-17. "46 Around BH Board and T-Con (14) ..................... 38
2-18. "46 Around Bottom of Panel Centre (15) ................. 38
2-19. "46 Around D2 Board (16) ........................................ 38
2-20. "46 Around Right Speaker (17) ................................. 38
2-21. "46 Vesa (18) .............................................................. 39
2-22. Common LVDS Over View ....................................... 39
2-23. 32 Inch LVDS ASSY ................................................. 39
2-24. 40, 46 Inch LVDS Assy ............................................. 39
2-25. 32 Inch LVDS Attention ............................................ 40
2-26. 40, 46 Inch LVDS Attention ...................................... 40

3-1.

How to enter Service Mode ....................................... 42

3-2.

Accessing the Service Adjustment Menus ................ 42

3-3.

Resetting the User menu-Factory Reset .................... 43

3-4.

White Balance Adjustment ........................................ 43

3-5.

Adjustment with External Control Sequence
(ESC jig with PC) ...................................................... 44

3-6.

Gamma Adjustment ................................................... 46

3-7.

White Balance Adjustment ........................................ 46

3-8.

Panel Replacement ..................................................... 48

3-9.

Board Replacement .................................................... 48

4-1.

Block Diagram ........................................................... 49
4-1-1. H1, H3, H4 Block Diagrams .......................... 49
4-1-2. UT Block Diagram .......................................... 49

4-2.

Circuit Boards Location ............................................ 50

4-3.

Schematic Diagram Information ............................... 50
4-3-1. BG1, BH, D1, D2, G1H, G3 and U2 Boards
Schematic Diagram .................................................... 51
4-3-2. H1 and H4 Boards Schematic Diagram ......... 52
4-3-3. H3 Board Schematic Diagram ........................ 53
4-3-4. UT Board Schematic Diagram ....................... 54

4-4.     Printed Wiring Boards ............................................. 57

4-5.     Semiconductors......................................................... 60

5-1.

Rear Cabinet and Stand Assy .................................... 62

5-2.

Frame and Cover ........................................................ 64

5-3.

Chassis-1 .................................................................... 65

5-4.

Chassis-2 .................................................................... 66

5-5.

H3, H4 Boards and Speaker ...................................... 67

5-6.

Bezel Assy and LCD Panel ........................................ 68

5-7.

Connector (KLV-32D300A) ...................................... 69

5-8.

Connector (KLV-40/46D300A) ................................. 70

6. ELECTRICAL PARTS LIST .............................................. 72