Sharp SGH-F250 manual ESDElectrostatically Sensitive Devices Precaution

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Safety Precautions

1-2. ESD(Electrostatically Sensitive Devices) Precaution

Several semiconductor may be damaged easily by static electricity. Such parts are called by ESD (Electrostatically Sensitive Devices), for example IC,BGA chip etc. Read Precaution below.

You can prevent from ESD damage by static electricity.

Remove static electricity remained your body before you touch semiconductor or parts with semiconductor. There are ways that you touch an earthed place or wear static electricity prevention string on wrist.

Use earthed soldering steel when you connect or disconnect ESD.

Use soldering removing tool to break static electricity. , otherwise ESD will be damaged by static electricity.

Don't unpack until you set up ESD on product. Because most of ESD are packed by box and aluminum plate to have conductive power,they are prevented from static electricity.

You must maintain electric contact between ESD and place due to be set up until ESD is connected completely to the proper place or a circuit board.

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SAMSUNG Proprietary-Contents may change without notice

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Contents GSM Telephone Country Web Site Safety Precautions Repair PrecautionESDElectrostatically Sensitive Devices Precaution Specification GSM General SpecificationGSM Tx Power Class TX Power GSM850 DCS1800 PCS1800 Control levelProduct Function Main FunctionProduct Function Array course control Software AdjustmentsRF CABLEGH39-00599A Test CABLE-0.4MGH39-01020A Test CABLE-1.5MGH39-01022ASoftware Downloading Pre-requsite for DownloadingSamsung Proprietary-Contents may change without notice Exploded View and Parts List Cellular phone Exploded ViewCellular phone Parts List SEC CodeQFU01 Assy CASE-SLIDE Upper BAG PE Main Electrical Parts List Status2007-000162 R218 Chip SNA 2203-005050 C403 TA,CHIP CRYSTAL-SMD SOCKET-INTERFACE Samsung Proprietary-Contents may change without notice Block Diagrams BaseBand Solution Block DiagramRF Solution Block Diagram PCB Diagrams - Main top view- Main bottom view Flow Chart of Troubleshooting Power OnFlow Chart of Troubleshooting Samsung Proprietary-Contents may change without notice Initial Samsung Proprietary-Contents may change without notice Charging Part Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Sim Part Samsung Proprietary-Contents may change without notice Microphone Part Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Speaker PartMelody Spkp & Spkn HighSamsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Key Data Input Back Light for Color Main LCD Key Back Light Camera part Radio part Samsung Proprietary-Contents may change without notice GSM Receiver RX onDCS Receiver PCS Receiver Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice GSM Transmitter MODULE100DCS Transmitter PCS Transmitter Samsung Proprietary-Contents may change without notice Bluetooth part Samsung Proprietary-Contents may change without notice Reference data Reference Abbreviate10-2 Disassembly and Assembly Instructions Disassembly InstructionsFpcb Connector Samsung Proprietary-Contents may change without notice Assembly Instructions Hook Samsung Proprietary-Contents may change without notice