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File name Panasonic TC-26LX20_TC-32LX20_TC-22LR30 Chassis LH-34 LCD Tv Training Manual.pdf

PASC050803TG1 B19 Technical Guide LCD High Definition TV Models, TC-26LX20, TC-32LX20 and Combo Model TC-22LR30 LH-34 Chassis Functional Overview, Circuit Description and Troubleshooting Panasonic Services Company National Training Table of Contents Objective ... 1 Features ... 2 LCD Technology... 2 Dynamic Image Balancing... 3 3D Y/C Separation ... 3 LCD High Definition TV Model Differences ... 4 Differences between Models ... 4 Circuit Board Layout... 5 TC-22LR30 Circuit Boards... 5 Circuit Board Interconnection... 6 System Control Block ... 7 A Board (TC-22LR30) ... 9 H Board (TC-26/32LX20) ... 10 K board (TC-22LR30, TC-26/32LX20) ... 11 A Board (TC-26/32LX20) ... 12 Power Supply ... 13 Power Supply (TC-22LR30) ... 13 P Board - Primary Power... 14 AP Board - Secondary Power ... 15 Tuner / FIP Power Supply (AP Board)... 16 Over Current Protection Shutdown Circuits ... 17 14-Volt Power Down Detect Circuit ... 18 Over Voltage Protection _ AC Shutdown Latch Circuit ... 19 Power Supply (TC-26/32LX20)...