SAMSUNG Proprietary-Contents may change without notice
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1. General Description
The SCH-811 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:
E
IS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum
Cellular System
E
IS-96A : Speech Service Option 1 Standard for Dual-Mode Wideband Spread Spectrum Cellular Systems
E
IS-98A : Standards for Dual-Mode Wideband Spread Spectrum Cellular Mobile Station
E
IS-126 : Mobile Station Loopback Service Options Standard
SCH-811 is composed of main handset, rapid charger, three batteries (1600 mAh, 1000 mAh, 550mAh), hands-
free kit, car adaptor, and travel charger. Hands-Free Kit is designed to be operated in full-duplex mode taking
turn-around delay between the phone and the system into account.
Summary of Contents for SCH-811
Page 2: ...Samsung Electronics Co Ltd GH68 00398A 1999 3 REV 1 0 ELECTRONICS ...
Page 84: ...9 1 Cellular Phone 9 1 1 Main PCB LOGIC B D 9 PCB Diagrams ...
Page 85: ...9 1 Cellular Phone 9 1 2 Main PCB LOGIC B D ...
Page 86: ...9 1 Cellular Phone 9 1 3 Main PCB RF B D ...
Page 87: ...9 1 4 LCD FPC ...
Page 88: ...9 2 Desk Top rapid Charger PCB Top View ...
Page 89: ...Bottom View ...
Page 90: ...9 3 Hands Free kit 1 PCB Top View ...
Page 91: ...Bottom View ...
Page 92: ...9 4 Cradle 1 PCB Top View ...
Page 93: ...9 5 TC PCB Top View Bottom View ...
Page 94: ...9 6 CLC PCB Top View Bottom View ...
Page 98: ...10 4 Travel Charger Block Diagram ...
Page 102: ...10 5 Main Circuit Diagram 1 3 ...
Page 103: ...Main Circuit Diagram 2 3 ...
Page 104: ...Main Circuit Diagram 3 3 ...
Page 105: ...LCD FPC Circuit Diagram ...
Page 106: ...10 7 Hands Free kit 1 Circuit Diagram data ...
Page 107: ...Hands Free kit 1 Circuit Diagram audio ...
Page 108: ...Car Adaptor 1 Circuit Diagram ...
Page 109: ...10 8 Cradle 1 Circuit Diagram ...
Page 110: ...10 9 Travel Charger Circuit Diagram ...
Page 111: ...10 10 CLC Cigarette Lighter Charger Circuit Diagram ...