Samsung SCH-2500 service manual free download

File name Samsung SCH-2500 service manual.pdf

PORTABLE CELLULAR TELEPHONE SCH-2500 Series SERVICE Manual PORTABLE CELLULAR TELEPHONE CONTENTS 1. General Introduction 2. Specification 3. Installation 4. Nam Programming 5. Circuit Description 6. Trouble shooting 7. Exploded Views and its Parts List 8. Electrical Parts List 9. PCB Diagrams 10. Block Diagrams 11. Circuit Diagram SAMSUNG Proprietary - Contents may change without notice Samsung Electronics Co.,Ltd. GH68-00621A 1999. 9. Rev. 1.0 1. General Introduction The SCH-25XX DBTM phone functions as analog phone working in AMPS (Advanced Mobile Phone Service) mode, digital cellular phone working in CDMA (Code Division Multiple Access) 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 Triple mode and Dual band in compliance with ANSI J-STD-008 and TIA/EIA IS- 98A. MS(Mobile Station) meets the specifications of the below; ANSl J-STD-008 : Personal Station-base Station Compatibility Requirements for 1.8 to 2.0 GHz CDMA PCS. ANSl 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 Systems. TlA/ElA lS-95A : Mobile Station-Base Station Compatibility Standard for Dual-Mode Wideband Spread Spectrum Cellular System. IS-96A : Speech Service Option 1 Standard for Dual-Mode Wideband Spread-Spectrum Cellular Syatems. IS-98A : Standard for Dual-Mode Wideband Spread Spectrum Cellular Mobile Station. IS-126 : Mobile Station Loopback Service Options Standard. SCH-25XX is composed of main handset, rapid charger, cradle, two batteries (1000 mAh, 1600 mAh), hand- free kit, 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. SAMSUNG Proprietary - Contents may change without notice 1-1 General Introduction Memo 1-2 SAMSUNG Proprietary - Contents may change without notice 2. SPECI