Samsung PS42B430P2WXXH Service Manual

PrecautionSamsung Electronics 1-31-3 Static Electricity Precautions1. Some semi-conductive ("solid state") devices arevulnerable to static electricity. These devices are knownas ESD. ESD includes the integrated circuit and the fieldeffect transistor. To avoid any materials damage fromelectrostatic shock, follow the instructions describedbelow.2. Remove any static electricity from your body byconnecting the earth ground before handling anysemi-conductive parts or assemblies. Alternatively,wear a dischargeable wrist-belt. (Make sure to removeany static electricity before connecting the power source- this is a safety instruction for avoiding electric shock)3. Remove the ESD assembly and place it on a conductivesurface such as aluminum foil to prevent accumulatingstatic electricity.4. Do not use any Freon-based chemicals. Such chemicalswill generate static electricity that causes damage to theESD.5. Use only grounded-tip irons for soldering purposes.6. Use only anti-static solder removal devices. Most solderremoval devices do not support an anti-static feature.A solder removal device without an anti-static featurecan store enough static electricity to cause damage tothe ESD.7. Do not remove the ESD from the protective box until thereplacement is ready. Most ESD replacements arecovered with lead, which will cause a short to the entireunit due to the conductive foam, aluminum foil or otherconductive materials.8. Remove the protective material from the ESDreplacement lead immediately after connecting it to thechassis or circuit assembly.9. Take extreme caution in handling any uncovered ESDreplacements. Actions such as brushing clothes or liftingyour leg from the carpet floor can generate enough staticelectricity to damage the ESD.CAUTIONThese servicing instructions are for use by qualifiedservice personnel only.To reduce the risk of electric shock do not perform anyservicing other than that contained in the operatinginstructions unless you are qualified to do so.