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PORTABLE CELLULAR
TELEPHONE
SCH-3500 Series
SERVICE Manual
PORTABLE CELLULAR TELEPHONE CONTENTS
1. General Introduction
2. Specification
3. Installation
4. NAM Programming
5. Product Support Tools
6. Circuit Description
7. Test Procedure
8. Trouble Shooting
9. Exploded Views and Parts List
ABC DEF
10. Block Diagram
GHI JKL MNO
PQRS WXYZ
11. Electrical Parts List
TUV
SPACE
12. PCB Diagrams
13. Circuit Diagrams
1. General Introduction
The SCH-3500 DBDM(Dual Band Dual Mode) phone functions as both analog phone working in AMPS
(Advanced Mobile Phone Service) mode and digital phone working in PCS (Personal Communication Service)
mode.
The following standards and minimum performance standards shall be met or exceeded by each subscriber
unit.
Air Interface
The Subscriber Unit shall be Dual mode and Dual band in compliance with ANSI J-STD-008 and TIA/EIA IS-
95A(Analog).
ANSI J-STD-008 : Personal Station-Base Station Compatibility Requirements for 1.8 to 2.0 GHz CDMA PCS.
ANSI J-STD-018 : Recommended Minimum Performance Requirements for 1.8 to 2.0 GHz CDMA Personal
Stations.
CDG Ref. Document #27 : High Rate Speech Service Option for Wideband Spread Spectrum System.
TIA/EIA IS-96A : Speech Service Option 1 Standard for Dual mode Wideband Spread Spectrum Cellular
Systems.
TIA/EIA IS-125 : Recommended Minimum Performance standards for Digital Cellular Wideband Spread
Spectrum Speech Service Option1.
TIA/EIA IS-126-A : Mobile Station Loop back Service Option standard.
TIA/EIA IS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread
Spectrum Cellular Systems;for the analog air interface.
TIA/EIA IS-98A : Recommended Minimum Performance Requirements for 1.8 to 2.0 GHz CDMA Personal
Stations.
CDMA Receiver/Transmitter Specifications and Requirements
The Subscriber Unit shall comply with ANSI J-STD-008 and meet or exceed TIA/EIA IS-98A. The Subscriber
Unit shall comply with Personal Station Class II.
Analog Receiver/Transmitter Specifications and Requirements
The Subscriber Unit shall comply with TIA/EIA IS-95A and meet or exceed TIA/EIA IS-95. The Subscriber Unit
shall comply with Mobile Station Power Class III (600 mW).
SAMSUNG Proprietary-Contents may change without notice
1-1
2. Specification
2-1 General
Frequency Range PCS Mode AMPS Mode
Transmitter 1850 ~ 1910 MHz 824 ~ 849 MHz
Receiver 1930 ~ 1990 MHz 869 ~ 894 MHz
Channel Spacing 1.25 MHz 30 kHz
Number of Channels 1200 832
Duplex Spacing 80 MHz 45 MHz
Frequency Stability (FRX - 80 MHz)