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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: