Samsung STH-N375 Manual de usuario

SERVICETDMA MOBILETELEPHONE STH-N375ManualTDMA MOBILE TELEPHONE CONTENTS1. Trouble Shooting2. Electrical Parts List3. Exploded Views and Parts L

SAMSUNG Proprietary-Contents may change without notice1-8STH-N375 Trouble ShootingNReplace U301Case TDMA mode:setup basestation for RX testAmplitude:-

SAMSUNG Proprietary-Contents may change without notice1-9STH-N375 Trouble Shooting2-3.Transmitter Section (Offline test)NReplace U203NReplace U203NRep

SAMSUNG Proprietary-Contents may change without notice1-10STH-N375 Trouble Shooting13Replace U101YYNeed to checkV_RF2=3.0V orReplace U3012YU301_59(RF

SAMSUNG Proprietary-Contents may change without notice1-11STH-N375 Trouble Shooting3YNeed to checkV_DRV_CELL=3.0V, U112 orReplace U305U305 Gainaround

SAMSUNG Proprietary-Contents may change without notice3-13. STH-N375 Exploded View and its Parts List1. Cellular phone Exploded View134576891113131512

SAMSUNG Proprietary-Contents may change without notice3-2STH-N375 Exploded view and its Part ListFRONT COVERSPEAKERKEY PADMAIN PBALCDMIC HOLDERMICSHIE

STH-N375 Exploded view and its Part ListSAMSUNG Proprietary-Contents may change without notice3-33. Test Jig (GH80-00614A)4. TC (GH44-00145G) 110VMexi

SAMSUNG Proprietary-Contents may change without notice4-14. STH-N375 Block Diagrams1. Base Band Part Block Diagram.MODPLLSynthesizerPowerManagementPRE

SAMSUNG Proprietary-Contents may change without notice4-2STH-N375 Block diagrams2. Radio Part Block DiagramRSSIAGC OUTMODD5204-22/D5205(U101/U203)PREA

SAMSUNG Proprietary-Contents may change without notice5-15. STH-N375 PCB Diagrams1. Main PCB Top DiagramAU201C104C107C109C111C130C133C134C135C136C137C

©Samsung Electronics Co.,Ltd. May. 2002Printed in Korea.Code No.: GH68-02790ABASIC.ELECTRONICS

SAMSUNG Proprietary-Contents may change without notice5-22. Main PCB Bottom DiagramSTH-N375 PCB diagramsANT301BT201C101C102C103C105C106C108C110C112C11

SAMSUNG Proprietary-Contents may change without notice6-16. STH-N375 Circuit Description & Circuit DiagramsSTH-N375/N371 provides the AMPS and the

SAMSUNG Proprietary-Contents may change without notice6-2STH-N375 Circuit Description & Circuit DiagramsFigure1. BEC interface and block diagram

SAMSUNG Proprietary-Contents may change without notice6-3STH-N375 Circuit Description & Circuit DiagramsTable1. ARM Memory MapARM Memory MapARM Ad

SAMSUNG Proprietary-Contents may change without notice6-4STH-N375 Circuit Description & Circuit Diagrams1-3. IF INTERFACE CHIP (IFC: U101)The IFC

SAMSUNG Proprietary-Contents may change without notice6-5STH-N375 Circuit Description & Circuit DiagramsThe IFC (Ul 01) is mainly consist of IF in

SAMSUNG Proprietary-Contents may change without notice6-6STH-N375 Circuit Description & Circuit Diagrams2. RF Section2-1.IntroductionFor playing e

SAMSUNG Proprietary-Contents may change without notice6-7STH-N375 Circuit Description & Circuit DiagramsAMPS (Limiting and Discrimination)The down

SAMSUNG Proprietary-Contents may change without notice6-8STH-N375 Circuit Description & Circuit Diagrams2-5. Radio component controlU101 monitors

SAMSUNG Proprietary-Contents may change without notice6-9NOTE: THE RESISTOR FOR OPT BEADN375_IFICC124100NFC190100NFR162 20R115560K,1%SPK101SPKHA-1312V

SAMSUNG Proprietary-Contents may change without notice1-11. STH-N375 Trouble Shooting1. Baseband Section1-1. Program No RunningNNeed to checkQ107, Q1

STH-N375 Circuit diagramsSAMSUNG Proprietary-Contents may change without notice6-10NOTE: BOOT SHOULD BE PULLED LOW FOR CABLE DETECTION16ENTERBOARD_HOL

SAMSUNG Proprietary-Contents may change without notice6-11STH-N375 Circuit diagramsTL6TL550TL40.3TL2TL31.3Z[OHM] L[mm]TL45065TL3(1608)1.193.950TL1TL1T

NNSAMSUNG Proprietary-Contents may change without notice1-2STH-N375 Trouble Shooting1-2. Abnormal LCD Module, Vibrator & Speaker OperationYNNeed t

SAMSUNG Proprietary-Contents may change without notice1-3STH-N375 Trouble Shooting1-3. Abnormal Buzzer operationNNeed to check Q207, D201, U101STARTYY

SAMSUNG Proprietary-Contents may change without notice1-4STH-N375 Trouble Shooting1-4. Abnormal external Ear_Mic Jack operationSTARTYYHock Up Ear_Mic

SAMSUNG Proprietary-Contents may change without notice1-5STH-N375 Trouble Shooting2. RF Section2-1. Call processing and Online TestNDONESTARTYYNormal

SAMSUNG Proprietary-Contents may change without notice1-6STH-N375 Trouble Shooting2-2. Receiver Section (Offline test)1YYNNeed to checkU105, Q102YNNee

SAMSUNG Proprietary-Contents may change without notice1-7STH-N375 Trouble Shooting2NNAMPSTDMANReplace U301ReplaceF301Need to check OSC301, neighbor pa