Sharp SGH-T519 manual Safety Precautions, Repair Precaution

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1. Safety Precautions

1-1. Repair Precaution

Repair in Shield Box, during detailed tuning. Take specially care of tuning or test,

because specipicty of cellular phone is sensitive for surrounding interference(RF noise).

Be careful to use a kind of magnetic object or tool,

because performance of parts is damaged by the influence of manetic force.

Surely use a standard screwdriver when you disassemble this product, otherwise screw will be worn away.

Use a thicken twisted wire when you measure level.

A thicken twisted wire has low resistance, therefore error of measurement is few.

Repair after separate Test Pack and Set because for short danger (for example an overcurrent and furious flames of parts etc) when you repair board in condition of connecting Test Pack and tuning on.

Take specially care of soldering, because Land of PCB is small and weak in heat.

Surely tune on/off while using AC power plug, because a repair of battery charger is dangerous when tuning ON/OFF PBA and Connector after disassembing charger.

Don't use as you pleases after change other material than replacement registered on SEC System.

Otherwise engineer in charge isn't charged with problem that you don't keep this rules.

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SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

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Contents GSM Telephone Contents PCB Diagrams Block Diagrams Code No. GH68-12034A 2006 . Rev.1.0 Repair Precaution Safety PrecautionsESDElectrostatically Sensitive Devices Precaution General Introduction SpecificationGSM General Specification SpecificationPower GSM850 Control GSM TX power classPower GSM850 Control Level Edge TX Power LevelMain Function Product FunctionRF Circuit Description of SGH-T519 Circuit DescriptionBaseband Circuit description of SGH-D407 Power AMP PAM400WM8955LUCD401 Samsung Proprietary-Contents may change without notice Calibration Program Test Command & Test ProcedureTx Power Tune up Procedure Samsung Proprietary-Contents may change without notice Samsung Proprietary-Contents may change without notice Array course control Pre-requsite for Downloading Downloading Binary FilesS/W Downloader Program Samsung Proprietary-Contents may change without notice Select theFlash&Verify Browse #1234# Cellular phone Exploded View Exploded View and its PartslistCellular phone Parts list CBF INTERFACE-DATA Link Cable Disassembly Disassembly and Assembly instructionsDetach a LCD from LCD braket Assembly Absorber PBA Solder the intenna Place the camera SCREW.4 Point IC-POSI.FIXED REG Main Electrical Parts ListIC-POWER Supervisor 2007-000157 R428 2007-007316 R304 CER,CHIP 2203-000254 C213 2203-005061 C451 2203-006121 C306 2203-006423 C301 TA,CHIP OSCILLATOR-VCTCXO Power on Flow Chart of Troubleshooting10-2 Flow Chart of Troubleshooting 10-3 YES END Initial10-5 Voltage is 2.8V at C306? Sim Part10-7 LCD Display part 10-9 10-10 Microphone Part 10-12 YES Speaker Part10-14 Flow Chart of Troubleshooting 10-15 Receiver Part Flow Chart of Troubleshooting 10-17 Camera part 10-19 Flow Chart of Troubleshooting 10-20 10-1-9. Mp3 part 10-22 Flow Chart of Troubleshooting 10-23 Flow Chart of Troubleshooting 10-24 GSM900 RX 10-2. RFFlow Chart of Troubleshooting 10-26 GSM1800 RX GSM1900 RX GSM850 RX GSM850 / GSM900 TX Flow Chart of Troubleshooting 10-31 DCS1800 & PCS1900 TX 10-33 Fpcvol PCB Diagrams140 Block Diagrams Reference Abbreviate Reference data