File name LG 29FU1RL CW91A.pdfInternal Use Only
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COLOR TV tu2522 MANUAL tu2522 SERVICE
CHASSIS : CW91A
MODEL : 29FU1RL/RG MODEL : 29FU1RL/RG-TK
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CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
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P/NO : MFL62077307
May., 2010 Printed in China
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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...
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Copyright©2010 LG Electronics.Inc. All right reserved. Only for training and service purposes.
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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.
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Leakage Current Cold Check(Antenna Cold Check)
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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 |