Cover image for Complete projection TV troubleshooting & repair
Title:
Complete projection TV troubleshooting & repair
Author:
Desposito, Joseph.
Personal Author:
Publication Information:
Indianapolis, IN : Prompt Publications, [1998]

©1998
Physical Description:
xiv, 184 pages : illustrations ; 28 cm
General Note:
"61134"--Cover.

Includes index.
Language:
English
Added Author:
ISBN:
9780790611341
Format :
Book

Available:*

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Status
Central Library TK6642 .D38 1998 Adult Non-Fiction Non-Fiction Area-Oversize
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Central Library TK6642 .D38 1998 Adult Non-Fiction Non-Fiction Area-Oversize
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Summary

Summary

This book can save you the money and hassle of projection TV repair by showing you how to fix it yourself. The perfect tool to help every professional technician, enthusiastic hobbyist, or do-it-yourselfer to accomplish this goal. Includes a case study for the Mitsubishi VS-458RS.


Table of Contents

Chapter 1 Overview of Projection TV Circuitsp. 1
1.1 Tuner/Demodulator Circuitsp. 3
1.2 Video Circuitsp. 3
1.3 Horizontal Circuitsp. 5
1.4 Vertical Circuitsp. 5
1.5 High-Voltage Circuitsp. 5
1.6 The CRTsp. 6
1.7 Microprocessor Circuitsp. 7
1.8 Projection TV Controlsp. 7
1.9 Remote Control Circuitsp. 8
1.10 Power Supply Circuitsp. 8
Chapter 2 Tools and Test Equipmentp. 11
2.1 The Workbenchp. 13
2.2 Weight-Bearing Bench or Tablep. 14
2.3 Toolsp. 14
2.4 General Test Equipmentp. 17
2.5 Specialized Test Equipmentp. 20
2.6 Miscellaneousp. 25
Chapter 3 Projection TV Typesp. 27
Chapter 4 Safety Proceduresp. 31
4.1 Grounding the CRT Anodep. 33
4.2 Discharging Power Supply Capacitorsp. 34
4.3 More Grounding Considerationsp. 34
Chapter 5 Making Measurementsp. 37
5.1 Making Voltage and Current Measurementsp. 39
5.2 Resistance Measurementsp. 40
Chapter 6 Practical Repair Techniquesp. 45
6.1 Disassembly and Re-Assemblyp. 47
6.2 Handling the Projection TVp. 51
6.3 Replacing Componentsp. 51
6.4 Repairing Cracked Solder Jointsp. 53
Chapter 7 Determining the Problemp. 55
7.1 Preliminary Troubleshootingp. 57
7.2 Checking the High-Voltage Sectionp. 59
7.3 Checking the Power Supplyp. 60
7.4 Checking Picture Qualityp. 62
7.5 Checking Projection TV Controlsp. 62
Chapter 8 Troubleshooting Tuner/Demodulator Circuitsp. 65
8.1 The Tuner/Demodulatorp. 68
8.2 AFT and AGC Circuitsp. 68
8.3 The Frequency Synthesizerp. 74
Chapter 9 Troubleshooting Video Circuitsp. 75
9.1 The Video Circuitsp. 78
9.2 Checking the Video Circuitsp. 79
9.3 Checking On-Screen Display (OSD) Circuitsp. 81
Chapter 10 Troubleshooting Horizontal Circuitsp. 8
10.1 The Horizontal Oscillatorp. 85
10.2 Horizontal Drive Circuitsp. 87
10.3 Horizontal Output Transistorp. 87
10.4 Horizontal Controlsp. 89
10.5 A Typical Problemp. 90
Chapter 11 Troubleshooting Vertical Circuitsp. 91
11.1 The Vertical Oscillatorp. 93
11.2 Vertical Controlsp. 93
11.3 Troubleshooting Vertical Circuitsp. 95
Chapter 12 Troubleshooting High-Voltage Circuitsp. 97
12.1 Checking the Horizontal Output Transistorp. 99
12.2 Checking the High-Voltage (Flyback) Transformerp. 101
12.3 Screen and Focus Voltagesp. 102
Chapter 13 Troubleshooting the CRTsp. 105
13.1 Overview of a CRTp. 107
13.2 Troubleshooting the CRTp. 109
Chapter 14 Audio Circuitsp. 11
Chapter 15 Troubleshooting Microprocessor Circuitsp. 121
15.1 Checking the Microprocessorp. 123
15.2 Checking the Digital-to-Analog Converterp. 123
Troubleshootingp. 125
Chapter 16 Picture-In-Picture Circuitsp. 125
Chapter 17 Troubleshooting Projection TV Controlsp. 129
17.1 Checking Analog Controlsp. 131
17.2 Checking Digital Controlsp. 132
17.3 Checking the Pincushion Controlp. 133
17.4 Checking the Brightness and Contrast Controlsp. 133
17.5 Checking the Focus Controlp. 133
17.6 Adjusting the Gray Scale Backgroundp. 134
Chapter 18 Troubleshooting Remote Control Circuitsp. 135
18.1 Troubleshooting the Handheld Remote Control Unitp. 137
18.2 Troubleshooting the Remote Control Receiverp. 139
Chapter 19 Troubleshooting Power Supply Circuitsp. 141
19.1 Linear Power Suppliesp. 143
19.2 Switch Mode Power Suppliesp. 144
Chapter 20 Miscellaneousp. 149
20.1 Locating Spare Partsp. 151
20.2 Service Manualsp. 152
Chapter 21 Repair Tips and Techniquesp. 153
21.1 A Straightforward Repairp. 155
21.2 A Dead TVp. 155
21.3 A Shorted Deflection Yokep. 155
21.4 Speaker Problemsp. 156
21.5 Leaking Coolantp. 156
21.6 A Tuner Problemp. 157
21.7 A Convergence Problemp. 158
21.8 A Blurred Picturep. 158
21.9 A Horizontal Line Across the Screenp. 159
Appendix A Case Study: Mitsubishi Model VS-458RSp. 161
Appendix B Company Listingsp. 173
Indexp. 177

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