Analysis and Maintenance of the Power Circuit for a New Type of Display

Author: Colin
Publisher:
Publish Date: 2004-01-01
Features: The power circuit can provide various power voltages required for the operation of the display, so the power circuit has a relatively high power consumption in the entire system, and its failure rate is also very high. With the development of display technology, new displays mostly adopt multiple power circuits to supply power to different loads. Compared to previous small-screen displays, their circuit structures are much more complex, and the repair difficulty is also much higher. Many display repair personnel and radio enthusiasts have a limited understanding of the control methods of the power circuits in new displays. During repairs and analysis, they often encounter many difficulties, and even when faced with relatively simple problems, they are often helpless. In response to this situation, this book was organized and compiled. The content of this book is novel, highlights new technologies and new circuits, integrates circuit analysis and fault repair, and also provides a large number of key test point waveform diagrams. It is very suitable for display repair personnel to learn and reference.
This book takes the popular large-screen displays currently on the market, such as Philips, Panasonic, ViewSonic, Sony, Samsung, Haier, Founder, and LG displays, as examples, and introduces in detail the working principles of the power circuit, key point waveform diagrams, and common fault repair methods. To help repair personnel master more information, this book's appendix provides data on multi-terminal regulators for new displays, parameters of common display power switch transistors, parameters and replacements of common display voltage-stabilizing diodes, and a comprehensive list of markings and representative models of surface-mount transistors from ROHM and PANASONIC companies.
The content of this book is easy to understand and can be read by display designers, repair personnel, and enthusiasts.