Samsung SGH-T439 service manual free download

File name Samsung SGH-T439 service manual.pdf

GSM TELEPHONE SGH-T439 UMTS TELEPHONE CONTENTS 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View and Parts List 6. MAIN Electrical Parts List 7. Block Diagrams 8. PCB Diagrams 9. Flow Chart of Troubleshooting 10. Reference data 11. Disassembly and Assembly Instructions GSPN (Global Service Partner Network) Country Web Site North America service.samsungportal.com Latin America latin.samsungportal.com CIS cis.samsungportal.com Europe europe.samsungportal.com China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. 2007. 10. Rev.1.0 1. Safety Precautions 1-1. Repair Precaution Repair in Shield Box, during detailed tuning. Take specially care of tuning or test, because specificity 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 magnetic 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 disassembling 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. 1-1 SAMSUNG Proprietar