Samsung SCH-211 service manual free download

File name Samsung SCH-211 service manual.pdf

CDMA PORTABLE CELLULAR TELEPHONE SCH-211 Manual SERVICE CDMA PORTABLE CELLULAR TELEPHONE CONTENTS 1. General Introduction 2. Specification 3. Installation 4. NAM Programming CDMA 5. Circuit Description SEND END 1 2 6. Troubleshooting ABC 3 DEF 4 GHI 5 JKL 6 MNO 7 PQRS 8 TUV 9 WXYZ 7. Exploded Views and Parts List 0 OPER PWR CLR OK MENU 8. PCB Diagrams 9. Electrical Parts List 10. Block & Circuit Diagrams ELECTRONICS Samsung Electronics Co.,Ltd. GH68-00335A Specification 1 Samsung Electronics - Contents may change without notice. 1. General Introduction The SCH-211 cellular phone functions as both analog cellular phone working in AMPS (Advanced Mobile Phone Service) mode and digital cellular phone working in CDMA (Code Division Multiple Access) mode. CDMA type digital mode applies DSSS (Direct Sequential Spread spectrum) mode which first came to be used in the military. The DSSS reduces channel cross talk and allow to use one frequency channel by multiple users in the same specific area, resulting in increase of channel capacity to about ten times compared to that of analog mode currently used. Soft/Softer Handoff, Hard Handoff, and Dynamic RF Power Control technologies are combined into this phone to reduce the call drop while usage. CDMA digital cellular network consists of MSO (Mobile Switching Office), BSC (Base Station Controller), BTS (Base Station Transmission System), and MS (Mobile Station). MS meets the specifications of the below: