Instruction/ maintenance manual of the product SGH-E250 Samsung
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GSM TELEPHONE SGH-E250 GSM TELEPHONE CONTENTS 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View/Disassembly and Assembly Instructions 6. MAIN Electrical Parts List 7. Block Diagr ams 8. PCB Diagrams 9.
CONTENTS 1. Safety Precautions 1-1. Repair Precaution ........................... ............................................................ ...............1-1 1-2. ESD(Electrostatically Sensitive Dev ices) Precaution.... ...........................
CONTENTS 9. Flow Chart of Troubleshooting 9-1. Pown on.................... .............................................................................. ................... 9-1 9-2. Initial................ .............................. .............
SAMSUNG Proprietary-Contents may change without notice 1. 1-1 This Document can not be used without Samsung's authorization .
SAMSUNG Proprietary-Contents may change without notice S 1-2 This Document can not be used without Samsung's authorization .
2. Specification 2-1 2-1. GSM General Specification GSM900 Phase 1 EGSM 900 Phase 2 DCS1800 Phase 1 PCS1900 Freq. Band[MHz] Uplink/Downlink 890~915 935~960 880~915 925~960 1710~1785 1805~1880 1850~1910 1930~1990 ARFCN range 1~124 0~124 & 975~1023 512~885 512~810 Tx/Rx spacing 45MHz 45MHz 95MHz 80MHz Mod.
Speclflcation 2-2 TX Power control level GSM900 53 3 ± 2 d B m 63 1 ± 2 d B m 72 9 ± 2 d B m 82 7 ± 2 d B m 92 5 ± 2 d B m 10 23±2 dBm 11 21±2 dBm 12 19±2 dBm 13 17±2 dBm 14 15±2 dBm 15 13±.
SAMSUNG Proprietary-Contents may change without notice 3. Product Function 3-1 This Document can not be used without Samsung's authorization Main Function -SlimSlide Design Intenna -VGA Camera -Bluetooth V.2.0 -Stereo Bluetooth Head set -Mobile Tracker & SOS Messaging -Large 2.
SAMSUNG Proprietary-Contents may change without notice Product Function 3-2 This Document can not be used without Samsung's authorization.
SAMSUNG Proprietary-Contents may change without notice 4. Array course control 4-1 This Document can not be used without Samsung's authorization 4-1.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-2 This Document can not be used without Samsung's authorization 4-2. Software Downloading 4-2-1. Pre-requsite f or Downloading • Downloader Program( OneNAND Downloder V1.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-3 This Document can not be used without Samsung's authorization 3 . Select the file(s) what you want to do wnload.
SAMSUNG Proprietary-Contents may change without notice Array course control 4-4 This Document can not be used without Samsung's authorization.
SAMSUNG Proprietary-Contents may change without notice 5-1 This Document can not be used without Samsung's authorization 5. Exploded View/Disassembly&Assembly Instructions 5-1.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-2 This Document can not be used without Samsung's authorization 5-2.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Dis assembly&Assembly Instruc tions 5-3 This Document can not be used without Samsung's authorization Description Sec Code.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-4 This Document can not be used without Samsung's authorization 1) Be careful of body .
SAMSUNG Proprietary-Contents may change without notice Exploded View/Dis assembly&Assembly Instruc tions 5-5 This Document can not be used without Samsung's authorization 1) Be careful of dam.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-6 This Document can not be used without Samsung's authorization 1) Be careful of body .
SAMSUNG Proprietary-Contents may change without notice Exploded View/Dis assembly&Assembly Instruc tions 5-7 This Document can not be used without Samsung's authorization 1) Be careful of bod.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-8 This Document can not be used without Samsung's authorization 1) Be careful of damag.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Dis assembly&Assembly Instruc tions 5-9 This Document can not be used without Samsung's authorization 1) Be careful of bod.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-10 This Document can not be used without Samsung's authorization 1) Be careful of dama.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Dis assembly&Assembly Instruc tions 5-11 This Document can not be used without Samsung's authorization 1) Be careful of da.
SAMSUNG Proprietary-Contents may change without notice Exploded View/Disassembly&Assembly Instructions 5-12 This Document can not be used without Samsung's authorization.
SAMSUNG Proprietary-Contents may change without notice 6. MAIN Electrical Parts List 6-1 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS ANT60.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-2 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS C317 C-C.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-3 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS C519 C-C.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-4 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS L105 IND.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-5 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS R401 R-C.
SAMSUNG Proprietary-Contents may change without notice Main Electrical Parts List 6-6 This Document can not be used without Samsung's authorization Design LOC Description SEC Code STATUS TA500 C-.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's auth orization 7. Block Diagrams 7-1 7-1. Base Band Block Diagram.
SAMSUNG Proprietary-Contents may change without notice Block Diagrams 7-2 This Document can not be used wit hout Samsung's authorization 7-2. RF Block Diagram.
SAMSUNG Proprietary-Contents may change without notice 8. PCB Diagrams 8-1 This Document can not be used without Samsung's authorization Top.
SAMSUNG Proprietary-Contents may change without notice PCB Diagrams 8-2 This Document can not be used without Samsung's authorization Bottom.
SAMSUNG Proprietary-Contents may change without notice 9 . Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-1 9-1. Power On Check the Bat tery Volt age is more than 3.4V ' Powe r On ' does not wor k Change t he Battery END No Yes C420(VISA) = 2.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-2.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-3 9-2.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-4.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-5 9-3. Charging Part Check the U403 pin 38 >4 . 9 V Abnormal charging part END No Yes U403 pin 34(AUX_ON) =" L " ? No Yes Check the U403 pin 46 ≒1 .
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-6.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-7 9-4.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-8.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-9 9-5.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-10.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-11 9-6. Speaker Part(Melody) U500 pi n 7 = 2.9 V? Speaker d oes not work U500 pin 15,17 ≒ 1.8V? (When U500 operate) Resolder U500 No Yes No Resolder or replace U500 Yes HDC600 pin 2,3 ≒ 1.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-12.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-13 9-7.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-14 9-8.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-15 9-9.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-16.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-17 9-10. Key Back Light U906 pin6 = "H"? Check the U906 r elate d to "VDD_ KEY" END No Yes Yes Main Key LED does not work U906 pin3 = 3.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-18.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-19 9-11.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-20.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-21 9-12. GSM Receiver Check ANT Switch control circuit Resolder F100 Check & Resolder C117,L123,C126 And PMU Part Resolder U102 RX ON RF input : CH center freq : +67.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-22 9-13.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-23 9-14.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-24 9-15.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-25 9-16.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-26 9-17.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-27.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-28 9-18. Bluetooth part F404 pin 2 ≥ -4dB Bluetooth d oes not work C319, C318 (+position), is ≥ 1.
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-29.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-30 9-19. Radio part R524, R529, C533 ≥2 . 8 V Radio does not work R523, R525,C531, C532 ≥2 .
SAMSUNG Proprietary-Contents may change without notice Flow Chart of Troubleshooting This Document can not be used with out Samsung's authorizat ion 9-31.
SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung's authorizat ion Flow Chart of Troubleshooting 9-32.
SAMSUNG Proprietary-Contents may change without notice 10. Reference data 10-1 This Document can not be used without Samsung's authorization Reference Abbreviate ― AAC : Advanced Aud io Coding.
SAMSUNG Proprietary-Contents may change without notice Reference data 10-2 This Document can not be used without Samsung's authorization.
Samsung Electronics Co.,Ltd. 2006. 12. Rev.1.0 ⓒ This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual ca n be punished und er applicable International and/or domestic l aw.
An important point after buying a device Samsung SGH-E250 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Samsung SGH-E250 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Samsung SGH-E250 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Samsung SGH-E250 you will learn all the available features of the product, as well as information on its operation. The information that you get Samsung SGH-E250 will certainly help you make a decision on the purchase.
If you already are a holder of Samsung SGH-E250, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Samsung SGH-E250.
However, one of the most important roles played by the user manual is to help in solving problems with Samsung SGH-E250. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Samsung SGH-E250 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
