KDS-70R2000 - Sony TV Service Manual (repair manual). Page 3

Caution ................................................................

3

Specifications ......................................................

4

Connectors ..........................................................

6

Self Diagnostic Software ....................................

7

2. GENERAL ...................................................................

10

3-1.

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

24

3-2.

Pillar Removal  ....................................................

24

3-3.

Terminal Cover Removal  ...................................

24

3-4.

Chassis Assembly Removal  ..............................

24

3-5.

FXE, TUE Boards  .............................................

25

3-6.

S1 Board  ............................................................

25

3-7.

AG, B2 and G Block Assembly  ........................

25

3-8.

DC Motor SFF21C/C-NP ..................................

26

3-9.

Power Supply Block ...........................................

27

3-10. DC  Motor SFF24A/C-NP ..................................

27

3-11. DC Motor SFF22B/C-NP ..................................

28

3-12. Cover Unit ..........................................................

28

3-13. Lamp Guide (F) ..................................................

29

3-14. Screen Frame Block Assembly ...........................

29

3-15. Optics Block Assembly ......................................

31

3-16. Mirror Cover Block Assembly ...........................

32

3-17. T1, S2 Boards .....................................................

32

4-1.

Picture Distortion Correction Mechanism ..........

33

4-1-1. V-TRAP Correction 1 .......................................

33

4-1-2. V-TRAP Correction 2 .......................................

33

4-1-3. Picture Rotation Correction 1 ............................

33

4-1-4. Picture Rotation Correction 2 ............................

33

4-2.

Electrical Adjustment by Remote Commander ...

33

4-2-1. Method of Setting the Service Adjustment

          Mode ..................................................................

33

4-2-2.Service Mode Adjustment .................................

33

4-2-3. Memory Write Confirmation Method ...............

34

4-2-4. Adjusting Buttons and Indicator .......................

34

4-3.

Test Reset ............................................................

34

4-4.

H/V Center Confirmation and Adjustment .........

34

5-1.

Block Diagram (1) ..............................................

35

Block Diagram (2) ..............................................

36

Block Diagram (3) ..............................................

37

Block Diagram (4) ..............................................

38

Block Diagram (5) ..............................................

39

Block Diagram (6) ..............................................

40

Block Diagram (7) ..............................................

41

Block Diagram (8) ..............................................

42

Block Diagram (9) ..............................................

43

Block Diagram (10) ............................................

44

Block Diagram (11) ............................................

45

Block Diagram (12) ............................................

46

Block Diagram (13) ............................................

47

5-2.

Frame Schematic Diagram ..................................

48

5-3.

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

49

5-4.

Schematic Diagrams ...........................................

49

AG Board Schematic Diagram ...........................

50

B2 Board Schematic Diagram .............................

57

C Board Schematic Diagram ...............................

69

FXE Board Schematic Diagram ..........................

80

G Schematic Diagram .........................................

85

H2B, H3, H4 Boards Schematic Diagrams ........

87

S1, S2, T1  Boards Schematic Diagrams   .........

87

TUE Board Schematic Diagram ..........................

88

UE Board Schematic Diagram ............................

89

5-5.

Printed Wiring Boards ........................................

93

AG Printed Wiring Board  .................................

93

B2 Printed Wiring Board   ..................................

95

C Printed Wiring Board   ....................................

97

FXE Printed Wiring Board  ...............................

98

G Printed Wiring Board  ....................................

99

H2B, H3, H4 Printed Wiring Boards  ................ 101

S1, S2, T1 Printed Wiring Boards   .................... 101

TUE Printed Wiring Board   ............................... 102

UE Printed Wiring Board  ................................. 103

5-6.

Semiconductors .................................................. 104

6-1.

Screen, Covers   .................................................. 108

6-2.

Bottom Block-1 ................................................... 109

6-3.

Bottom Block-2 ................................................... 110

6-4.

Main Chassis Assembly ..................................... 111

7. ELECTRICAL  PARTS  LIST .................................. 112

SAFETY-RELATED COMPONENT WARNING !!

COMPONENTS IDENTIFIED BY SHADING AND MARKED

  

 

 ON

THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE
PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE
THESE COMPONENTS WITH SONY PARTS WHOSE PART
NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.

WARNING !!

AN ISOLATION TRANSFORMER SHOULD BE USED DURING
ANY SERVICE WORK TO AVOID POSSIBLE SHOCK HAZARD
DUE TO LIVE CHASSIS, THE CHASSIS OF THIS RECEIVER IS
DIRECTLY CONNECTED TO THE POWER LINE.