LG LG RU-23LZ21 [SM] free download

File name LG_RU-23LZ21_[SM].pdf

website:http://biz.LGservice.com e-mail:http://www.LGEservice.com/techsup.html LCD TV SERVICE MANUAL CHASSIS : ML-027C MODEL : RU-23LZ21 CAUTION BEFORE SERVICING THE CHASSIS, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. ST MONO DUAL DPM STEREO Oct.,2003 P/NO : 3828VD0140K Printed in Korea 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 Zenith commercially available discharging wrist strap device, which should be Electronics Corporation. All components should be replaced only with types removed for potential shock reasons prior to applying power to the unit under identical to those in the original circuit and their physical location, wiring, and test. lead dress must conform to original layout upon completion of repairs. If any 2. After removing an electrical assembly equipped with ES devices, place the fuse (or Fusible Resistor) in this TV receiver is blown, replace it only with the assembly on a conductive surface such as an ESD mat, to prevent factory specified fuse type and rating. When replacing a high wattage resistor electrostatic charge buildup or exposure of the assembly. (Oxide Metal Film Resistor, over 1W), keep the resistor 10mm away from PCB. 3. Use only a grounded-tip soldering iron to solder or unsolder ES devices. Always keep wires away from high voltage or high temperature parts. 4. Use only an anti-static solder removal device. Some solder removal devices not classified as "anti-static" can generate electrical charges sufficient to Special components are also used to prevent shock and fire hazard. damage ES devices. These components are indicated by