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Audio international PA-7500A manuals

Owner’s manuals and user’s guides for Audio amplifiers Audio international PA-7500A.
We providing 3 pdf manuals Audio international PA-7500A for download free by document types: Installation Manual, Troubleshooting Guide, Instruction Manual


Audio international PA-7500A Installation Manual (12 pages)


Brand: Audio-international | Category: Audio amplifiers | Size: 0.07 MB |

 

Table of contents

Document Revision History

2

Reference Documents

2

Service Bulletin List

2

Table of Illustrations

2

Table of Contents

3

PA-7500A

4

Cabin Audio Amplifier

4

6.0 Reference Drawings

12

Audio international PA-7500A Troubleshooting Guide (12 pages)


Brand: Audio-international | Category: Audio amplifiers | Size: 0.09 MB |

 

Table of contents

Guide to Installation &

1

Operations

1

Revision History

2

Applicable Documents

2

Service Bulletin List

3

List of Illustrations

3

Table of Contents

4

PA-7500A

5

Cabin Audio Amplifier

5

Audio international PA-7500A Instruction Manual (202 pages)


Brand: Audio-international | Category: Audio amplifiers | Size: 1.43 MB |

 

Table of contents

Instruction Manual

1

1720/1721

1

070-5846-07

1

WARRANTY

3

Table of Contents

5

List of Figures

9

List of Tables

11

General Safety Summary

12

Symbols and Terms

13

Section 1

19

Accessories

20

Safety Information

21

Specifications

21

Table 1- 1: Signal input

22

Table 1- 2: Vector mode

22

Operating Instructions

27

Section 2

29

MISCELLANEOUS

31

Rear-Panel Connectors

32

VECTORSCOPE

33

INPUT Switching

34

REF Switching

35

LINE SELECT

35

OPERATOR’S CHECKOUT PROCEDURE

36

Color bar signal

37

Mod staircase

37

Measurement Applications

43

Color Measurements

44

F*=U--iV

45

Measurement of C olor

47

Differential Gain and

50

Phase Measurements

50

X Y Measurements

52

Looking at Incidental

53

Carrier Phase Modulation

53

Service Safety Summary

57

Installation

59

Section 3

61

Auxiliary Connector

63

Mechanical Installation

64

Cabinet Securing Screws

67

Custom Installation

69

Theory of Operation

71

Section 4

73

Block Diagram

74

Gain Cell

75

Chrominance Processing

75

Demodulators

76

Output Amplifiers

76

CRT Blanking

76

Circuit Descriptions

77

Reference Switch

79

PAL Phasing

82

DIAGRAM 3 DEMODULATOR

83

XY Input A mps

86

Deflection Amplifiers

86

Center Dot C omparators

86

DIAGRAM 5 MICROPROCESSOR

87

DIAGRAM 6 CONTROL CIRCUIT

89

Trace Rot ation

90

Graticule Illumination

90

Post Regulators

90

Line Rectifier and

91

Pulse Width

92

Modulator

92

Output Filters

92

HV Osc and Error

94

Section 5

99

Auxiliary Equipment

101

12345678

102

9101112131415

102

Performance Check Procedure

104

1720/1721 (rear)

105

Black burst

105

75Ω Termination

105

1410--Series (rear)

105

Checks and Adjustments

108

GND GND GND

112

Adjustment Procedure

115

Front-Panel Presets

116

A3 Main Bd

119

Maintenance

125

Section 6

127

Visual Inspection

128

Static-Sensitive

128

Components

128

Performance Checks and

129

Readjustments

129

Troubleshooting

130

Parts Lists

131

Major Assembly

131

Interconnection

131

General Troubleshoot ing

132

Techniques

132

Power Supply

134

Procedure

134

Introduction

134

Low Volts Supply

135

Serial Port and LED Driver

140

Diagnostics

140

Corrective Maintenance

141

Bezel Removal

142

Graticule Light Removal

143

CRT Removal

144

Removal of the CRT

144

Replacement of t he CRT

144

Removing the Rear Panel

145

Removing the Front Panel

146

Circuit Board

146

Removing the Main Board

147

Removing the Power

148

Supply Board

148

Repackaging

149

Section 7

153

Ordering

154

Replaceable Electrical Parts

155

Column Descriptions

158

Mfr. Code

159

(Column 6)

159

Mfr. Part No. (Column 7)

159

Replaceable Mechanical Parts

191




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