Confidential and proprietary-the contents in this service guide subject to change without prior noticeDistribution, transmission, or infringement of any content or data from this document without Samsung’s written authorization is strictly prohibited.1.Safety Precautions1-2. ESD(Electrostatically Sensitive Devices) PrecautionMany semiconductors and ESDs in electronic devices are particularly sensitive to static discharge andcan be easily damaged by it. We recommend protecting these components with conductive anti-staticbags when you store or transport them.Always use an anti-static strap or wristband and remove electrostatic buildup or dissipatestatic electricity from your body before repairing ESDs.Ensure that soldering irons have AC adapter with ground wires and that the ground wires are properlyconnected.Use only desoldering tools with plastic tips to prevent static discharge.Properly shield the work environment from accidental electrostatic discharge before openingpackages containing ESDs.The potential for static electricity discharge may be increased in low humidity environments,such as air-conditioned rooms. Increase the airflow to the working area to decrease thechance of accidental static electricity discharges.