Sharp 28HW-53H manuales

Manuales del propietario y guías del usuario para Televisores y monitores Sharp 28HW-53H.
Ofrecemos 1 manuales en pdf Sharp 28HW-53H para descargar gratis por tipos de documentos: Especificaciones


Sharp 28HW-53H Especificaciones (80 paginas)


Marca: Sharp | Categoria: Televisores y monitores | Tamaño: 6.05 MB |

 

Tabla de contenidos

DA100 (50Hz) and

1

DA50W Chassis

1

Repair Notes

1

Contents

2

Page 3 of 80

3

Page 4 of 80

4

Figures

5

Page 6 of 80

6

Introduction

7

Product Specifications

8

IC Identification

9

Note 2 - Second NVM Fitting

11

Note 3 IC1801 Types

11

Note 4 – IC801 Types

11

Dolby Pro Logic PWB

12

Power Supply

13

Revision 3

14

Page 14 of 80

14

Circuit Operation

15

Figure 6: Q701 Gate Waveform

16

Standby Power Supply

17

Degauss Circuit

18

Figure 8: Degauss Circuit

18

+5V Supply Generation

19

+3.3V Supply Generation

19

Figure 11: Location of R792

20

Figure 12: Location of R623

20

Page 21 of 80

21

Page 22 of 80

22

Page 24 of 80

24

Page 25 of 80

25

Page 26 of 80

26

Horizontal Stage

27

Page 28 of 80

28

Page 29 of 80

29

Page 30 of 80

30

Page 31 of 80

31

East/West Circuit

32

Page 33 of 80

33

Page 34 of 80

34

CRT PWB

36

Class D Output Stages

37

Vertical Stage

38

Page 39 of 80

39

Page 40 of 80

40

Page 41 of 80

41

Faults in the Vertical Stage

42

On Board Circuit Operation

43

Page 44 of 80

44

Page 45 of 80

45

Page 46 of 80

46

Figure 47: Pro-Logic PWB

47

Page 48 of 80

48

Revision 2

48

Figure 49: Dolby Pro-Logic

49

PWB Connector

49

Control and Communication

50

Reset Operation

51

Figure 51: Reset Timing

51

Protection - Microprocessor

52

AV Link

53

EPROM’s and NVM’s

54

Blanking the NVM

54

NVM Programming Jig

55

Analogue Front End

56

Page 57 of 80

57

Page 58 of 80

58

Faults Connected to the VDP

59

Figure 57: Position of C824

59

Picture Rotation

60

Scan Velocity Modulator

61

Page 62 of 80

62

Preventative Maintenance

63

Servicing Tips

64

Page 65 of 80

65

Page 66 of 80

66

Error Codes

67

Part Changes

68

Service Mode

69

Geometry Adjustments

70

G2 Setting

70

G2 Adjustment

70

Grey Scale Adjustment

71

Voltage Tables

72

IC1001 – Microprocessor

73

IC702 - Primary Control

77

IC501 - Vertical Output

78

IC1003 - NVM

78

IC2401 - Megatext

79

IC201 - IF

80





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