Magnavox 19MF339B manuals

Magnavox 19MF339B Service Manual (250 pages)

Brand: Magnavox | Category: Unknown | Size: 9.65 MB |

English

Table of contents

SERVICE MANUAL

1

IMPORTANT SAFETY NOTICE

2

TABLE OF CONTENTS

3

SPECIFICATIONS

4

IMPORTANT SAFETY PRECAUTIONS

5

Precautions during Servicing

7

Safety Check after Servicing

8

STANDARD NOTES FOR SERVICING

9

Example :

11

<Incorrect>

12

<Correct>

12

1. Disassembly Flowchart

13

2. Disassembly Method

13

[2] Rear Cabinet

14

[1] Stand Assembly

14

4-3 A91N3DC

15

TV Cable Wiring Diagram

16

[22MF339B/F7, LC225SSX]

17

4-7 A9170DC

19

“Circuit Board Assembly.”

21

Service mode:

21

1. Purity Check Mode

22

2. VCOM Adjustment

22

3. White Balance Adjustment

23

HOW TO INITIALIZE THE LCD TV

24

FIRMWARE RENEWAL MODE

25

TROUBLESHOOTING

26

8-2 A91N3TR

27

8-3 A91N3TR

28

8-4 A91N3TR

29

[ Video Signal Section ]

30

8-6 A91N3TR

31

[ Audio Signal Section ]

32

8-8 A91N3TR

33

8-9 A91N3TR

34

BLOCK DIAGRAMS

35

9-2 A91N3BLV

36

Video Block Diagram

36

JACK CBA

36

Audio Block Diagram

37

A91N3BLA

37

A91N3BLD

38

A9AN3BLD

39

Inverter Block Diagram

40

A91N3BLINV

40

A9170BLINV

41

Power Supply Block Diagram

42

A91N3BLP

42

A9170BLP

43

Standard Notes

44

Indicates that the voltage

45

A91N3SCM1

46

Main 1/4 Schematic Diagram

46

A91N3SCM2

47

Main 2/4 Schematic Diagram

47

A91N3SCM3

48

A91N3SCM4

49

Main 4/4 Schematic Diagram

49

A9170SCM1

50

A9170SCM2

51

A9170SCM3

52

A9170SCM4

53

A91N3SCJ

54

A91N3SCF

55

A91N3SCD1

56

A91N3SCD2

57

A91N3SCD3

58

A91N3SCD4

59

A91N3SCD5

60

A9AN3SCD1

61

A9AN3SCD2

62

A9AN3SCD3

63

A9AN3SCD4

64

A9AN3SCD5

65

BA94N0F01013

66

CAUTION ! :

67

BA9170F01011

68

CAUTION !

69

BA94N0F01021-A

70

Jack CBA Top View

70

Jack CBA Bottom View

71

BA94N0F01021-B

72

BA94N0F01021

72

LC7NWF11-1

73

A91N3WI12-1

74

WIRING DIAGRAM

75

EXPLODED VIEWS

76

See Electrical Parts List

77

13-3 A91N3PEX

78

13-4 A9170PEX

79

PACKI NG

95

ACCESSORIES

95

MECHANICAL PARTS LIST

100

ELECTRICAL PARTS LIST

101

CONNECTORS

102

TRANSISTORS

103

RESISTORS

103

JACK ASSEMBLY

105

FUNCTION CBA(MJC-B)

106

JUNCTION-B CBA(MJC-D)

107

JUNCTION-C CBA(MJC-E)

107

JUNCTION-A CBA(MJC-C)

107

JACK CBA(MJC-A)

162

DIGITAL MAIN CBA UNIT

206

MAIN CBA

206

REVISION HISTORY

250

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