panasonic TC-22LH1 Technical Guide free download

File name TC-22LH1 Technical Guide.pdf

Technical Guide TC-22LH1 LCD Television Technology, Troubleshooting, & Adjustments Panasonic Services Company National Training Center Produced by Gerald Gaimo & Jean Magloire Panasonic Services Company National Training Department Secaucus, NJ Warning This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death. Table Of Contents 2 Introduction ... 5 Chapter 1 Technology Explanation ... 7 1.1 Properties of Liquid Crystals ... 7 1.2 LCD Basic Reflective Assembly... 8 1.3 Backlighting vs. Reflective ... 8 1.4 Color ... 9 1.5 LCD Addressing Technology ... 10 1.6 Backlighting ... 11 1.7 Inverter Power Supply ... 11 1.8 High Voltage Power Supply ... 12 1.9 Test and Measurement... 13 1.10 Features ... 14 Chapter 2 Circuit Descriptions... 16 Block Diagram Overview ... 18 Chapter 3 Video Circuit Explanations ... 20