File name LCD LG 15LC1RB-ZG CHASSIS CL-81.pdfwebsite:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html
LCD TV SERVICE MANUAL
CHASSIS : CL-81
MODEL : 15LC1R-ZG
CAUTION
BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
CONTENTS
CONTENTS ... 2 PRODUCT SAFETY ...3 DISASSEMBLY ...6 SPECIFICATION ...7 ADJUSTMENT INSTRUCTION ...12 SERVICE OSD ...14 SVC REMOCON ...15 TROUBLE SHOOTING ...16 BLOCK DIAGRAM...20 WIRING DIAGRAM ...22 EXPLODED VIEW ... 23 REPLACEMENT PARTS LIST ... 25 SVC. SHEET ...
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SAFETY PRECAUTIONS
IMPORTANT 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 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. 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 (or Fusible Resistor) in this TV receiver is blown, replace it with the specified. When replacing a high wattage resistor (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. Keep wires away from high voltage or high temperature parts.
Leakage Current Hot Check (See below Figure)
Plug the AC cord directly into the AC outlet. Do not use a line Isolation Transformer during this check. Connect 1.5K/10watt resistor in parallel with a 0.15uF capacitor between a known good earth ground (Water Pipe |