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File name LG 29FU1RL CW91A.pdf

Internal Use Only North/ Latin America Europe/Africa Asia/Oceania http://aic.lgservice.com http://eic.lgservice.com http://biz.lgservice.com tu2522 tu2522 tu2522 tu2522 tu2522 tu2522 COLOR TV tu2522 MANUAL tu2522 SERVICE CHASSIS : CW91A MODEL : 29FU1RL/RG MODEL : 29FU1RL/RG-TK tu2522 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. tu2522 tu2522 P/NO : MFL62077307 May., 2010 Printed in China tu2522 CONTENTS Contents ...2 Safety Precautions...3 Specifications...4 Adjustment Instructions ...5 T rouble Shooting...10 Printed circuit board...14 Block Diagram ...16 Exploded View...18 SVC. Sheet... 522 tu2522 tu2522 tu25 522 tu2522 tu2522 tu25 522 tu2522 tu2522 tu25 Copyright©2010 LG Electronics.Inc. All right reserved. Only for training and service purposes. -2- LGE Internal Use Only SAFETY PRECAUTIONS IMPORT ANT SAFETY NOTICE Many electrical and mechanical parts in this chassis have special safety-related characteristics. These parts are identified by in the Schematic Diagram and Replacement Parts List. It is essential that these special safety parts should be replaced with the same components as recommended in this manual to prevent X-RADIATION, Shock, Fire, or other Hazards. Do not modify the original design without permission of manufacturer. General Guidance An isolation Transformer should always be used during the servicing of a receiver whose chassis is not isolated from the AC power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal injury from electrical shocks. Before returning the receiver to the customer, always perform an AC leakage current check on the exposed metallic parts of the cabinet, such as antennas, terminals, etc., to be sure the set is safe to operate without damage of electrical shock. 522 tu2522 Leakage Current Cold Check(Antenna Cold Check) tu2522 tu25 It will also protect the receiver and it's components from being damaged by accidental shorts of the circuitry that may be inadvertently introduced during the service operation. If any fuse