LG RT-23LZ40 Service Manual free download

File name RT-23LZ40 Service Manual.pdf

website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL CHASSIS : ML-027C MODEL : RT-23LZ40 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. R CONTENTS CONTENTS ... 2 PRODUCT SAFETY ...3 SPECIFICATION ...4 DESCRIPTION OF CONTROLS ... 7 ADJUSTMENT INSTRUCTION...11 TROUBLE SHOOTING ...14 BLOCK DIAGRAM...15 PRINTED CIRCUIT BOARD ...16 WIRING DIAGRAM ...20 EXPLODED VIEW ... 21 EXPLODED VIEW PARTS LIST ...22 REPLACEMENT PARTS LIST ... 23 SVC. Sheet ... PRODUCT SAFETY IMPORTANT SAFETY NOTICE 1. Immediately before handling any semiconductor component or This manual was prepared for use only by properly trained audiovisual service semiconductor-equipped assembly, drain off any electrostatic charge on the technicians. When servicing this product, under no circumstances should the body by touching a known earth ground. Alternatively, obtain and wear a original design be modified or altered without permission from LG Electronics commercially available discharging wrist strap device, which should be Inc. All components should be replaced only with types identical to those in the removed for potential shock reasons prior to applying power to the unit under original circuit and their physical location, wiring, and lead dress must conform test. to original layout upon completion of repairs. If any fuse (or Fusible Resistor) in 2. After removing an electrical assembly equipped with ES devices, place the this TV receiver is blown, replace it only with the factory specified fuse type and assembly on a conductive surface such as an ESD mat, to prevent rating. When replacing a high wattage resistor (Oxide Metal Film Resistor, over electrost