Samsung CS29Z40ZQTXNWT Service Manual

Also see for CW-29Z404N: Owner's instructions Owner's instructions

1-3 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 ass'ys. Alternatively, wear adischargeable wrist-belt.(Make sure to remove any static electricity beforeconnecting the power source - this is a safety instructionfor avoiding electric shock)3. Remove the ESD ass'y and place it on a conductivesurface such as aluminum foil to prevent accumulatingstatic electricity.4. Do not use any Freon-based chemicals.Such chemicals will generate static electricity thatcauses damage to the ESD.5. Use only grounded-tip irons for soldering purposes.6. Use only anti-static solder removal devices.Most solder removal devices do not support ananti-static feature. A solder removal device without ananti-static feature can store enough static electricity tocause damage to the 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 ass'y.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.Precaution1-4 Samsung ElectronicsCAUTIONThese servicing instructions are for use byqualified service personnel only.To reduce the risk of electric shock do notperform any servicing other than that contained in theoperating instructions unless you are qualified to do so.