Samsung SGH-E250 User manual

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 Diagrams
8. PCB Diagrams
9. Flow Chart of Troubleshooting
10. Reference data

CONTENTS
1. Safety Precautions
1-1. Repair Precaution......................................................................................................1-1
1-2. ESD(Electrostatically Sensitive Devices) Precaution...............................................1-2
2. Specification
2-1. GSM General Specification.......................................................................................2-1
2-2. GSM Tx Power Class...............................................................................................2-2
3. Product Function
4. Array course control
4-1. Sofrware Adjustments................................................................................................4-1
4-2. Sofrware Downloading .............................................................................................4-2
5. Exploded View/Disassembly & Assembly Instructions
5-1. Cellular phone Exploded View..................................................................................5-1
5-2. Cellular phone Parts list............................................................................................5-2
5-3. Disassembly & Assembly Instructions......................................................................5-4
6. MAIN Electrical Parts List
7. Block Diagrams
7-1. Base Band Block Diagram........................................................................................7-1
7-2. RF Block Diagram.....................................................................................................7-2
8. PCB Diagrams

CONTENTS
9. Flow Chart of Troubleshooting
9-1. Pown on.....................................................................................................................9-1
9-2. Initial...........................................................................................................................9-3
9-3. Charging Part.............................................................................................................9-5
9-4. SIM Part.....................................................................................................................9-7
9-5. Microphone Part.........................................................................................................9-9
9-6. Speaker Part(Melody)..............................................................................................9-11
9-7. Key Data Input........................................................................................................9-13
9-8. Receiver Part...........................................................................................................9-14
9-9. Back Light(for Color Main LCD).............................................................................9-15
9-10. Key Back Light......................................................................................................9-17
9-11. Camera Part...........................................................................................................9-19
9-12. GSM Receiver........................................................................................................9-21
9-13. GSM Transmitter....................................................................................................9-22
9-14. DCS Receiver........................................................................................................9-23
9-15. DCS Transmitter....................................................................................................9-24
9-16. PCS Receiver.........................................................................................................9-25
9-17. PCS Transmitter.....................................................................................................9-26
9-18. Bluetooth Part........................................................................................................9-28
9-19. Radio Part..............................................................................................................9-30
10. Reference data

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. Bit rate/
Bit Period 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us 270.833kbps 3.692us
Time Slot
Period/Frame
Period
576.9us
4.615ms 576.9us 4.615ms 576.9us 4.615ms 576.9us 4.615ms
Modulation 0.3GMSK 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -102dBm -100dBm -100dBm
TDMA Mux 888 8
Cell Radius 35Km 35Km 2Km -

Speclflcation
2-2
TX Power
control level GSM900
533±2dBm
631±2dBm
729±2dBm
827±2dBm
925±2dBm
10 23±2 dBm
11 21±2 dBm
12 19±2 dBm
13 17±2 dBm
14 15±2 dBm
15 13±2 dBm
16 11±3 dBm
17 9±3dBm
18 7±3 dBm
19 5±3 dBm
TX Power
control level DCS1800
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
TX Power
control level PCS1800
030±3dBm
128±3dBm
226±3dBm
324±3dBm
422±3dBm
520±3dBm
618±3dBm
716±3dBm
814±3dBm
912±4dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm
2-2. GSM Tx Power Class

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 Headset
-Mobile Tracker & SOS Messaging
-Large 2.0" 65K Color TFT Display
-SMS/MMS/E-Mail
-WAP 2.0 / Java MIDP 2.0
-MP3,AAC,MP4,3GPPDecoding
-Video Recording and Messaging
-GSM/GPRS Class 10
-Triple Band(GSM900/DCS,PCS)
-64 Poly
-Speaker Phone
-Voice Clarity

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. Software Adjustments
Power Supply Cable
Serial Cable(CSA LL64151-A)
Test Jig (GH80-03306A) Test Cable (GH39-00499A)

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 for Downloading
• Downloader Program(OneNAND Downloder V1.2 Lite For PNX5230.exe)
• E250 Mobile Phone
• Data Cable
• Binary file, TFS file
4-2-2. S/W Downloader Program
■Load the binary download program by executing the
“OneNAND Downloder V1.2 Lite For PNX5230.exe”
1. Select the connected serial port and therateofspeed
2. Select the check box, the mode you want to download.
- if the binary file wanted, check only 'BIN'
- if the tfs file wanted, check only 'TFS'
- if all the files wanted, check 'BIN+TFS'
1
2

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Array course control
4-3
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3. Select the file(s) what you want to download

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Array course control
4-4
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5-1
This Document can not be used without Samsung's authorization
5. Exploded View/Disassembly&Assembly Instructions
5-1. Cellular phone Exploded View
QFU01
QKP02
QKP01
QMW01
QME03
QME02
QFR01
QCW01
QCA05
QCR17
QSC05
QSC06
QSP01
QMO01
QLC01
QCA01
QSD01
QHI01
QIF01
QFL01
QME01
QBR03
QMI03
QMI01
QAN02
QMP01
QRE01
QSC13
QRF01
QBA00
QCR03
QBA01
QVO01
QCR03
QMP02

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Exploded View/Disassembly&Assembly Instructions
5-2
This Document can not be used without Samsung's authorization
5-2. Cellular phone Parts list
Design LOC Description Sec Code
QAN02 INTENNA-SGH E250 GH42-00985A
QBA00 ASSY CASE-BATTERY GH98-03586A
QBA01 INNER BATTERY PACK-750MAH,BLK, GH43-02483A
QBR03 ASSY BRACKET-KEYPAD GH98-02620A
QCA01 UNIT-CAMERA MODULE GH59-03619A
QCA05 PMO-DECO MIRROR GH72-34243A
QCR03 SCREW-MACHINE 6001-001811
QCR03 SCREW-MACHINE 6001-001811
QCR17 SCREW-MACHINE 6001-001460
QCW01 PCT-COVER WINDOW CAMERA GH72-34247A
QFU01 ASSY CASE-SLIDE UPPER GH98-02259A
QKP01 ASSY KEYPAD-MAIN(EU/SIL) GH98-02264A
QKP02 ASSY KEYPAD-SUB(EU/SIL) GH98-02263A
QME01 UNIT-KEY FPCB GH59-03615A
QME03 MEA-SLIDE FPCBKIT GH97-06873A
QMI01 MICROPHONE-ASSY GH30-00309A
QMI03 RMO-RUBBER MIC GH73-08308A
QMP01 PBA MAIN-SGH E250 MAIN GH92-03188A
QRE01 ASSY CASE-REAR GH98-02262A
QRF01 MPR-TAPE RF SHEET GH74-27453A
QSC05 RMO-RUBBER SCREW SLIDE L GH73-08309A
QSC06 RMO-RUBBER SCREW SLIDE R GH73-08310A
QSC13 RMO-RUBBER SCREW REAR GH73-08311A
QVO01 PMO-VOLUME KEY GH72-34246A
QLC01 LCD-SGH E250 MODULE GH07-01018A
QMW01 ASSY COVER-WINDOW MAIN GH98-02619A
QSP01 SPEAKER 3001-002061
QMO01 MOTOR DC-SCHF509 GH31-00249A
QMP02 PBA SUB-SGH E250 PCB GH92-03393A
QME02 UNIT-METAL DOME GH59-03617A
QFR01 ASSY CASE-F/C+S/L GH98-02261A
QFL01 ASSY CASE-SLIDE LOWER GH98-02260A
QHI01 ASSY HINGE-PUSH ROD GH98-03165A
QIF01 PMO-COVER IF GH72-34244A
QSD01 PMO-COVER M SD GH72-34245A

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Exploded View/Disassembly&Assembly Instructions
5-3
This Document can not be used without Samsung's authorization
Description Sec Code
BAG PE 6902-000634
ADAPTOR-SGHE690,SIL,EU,A_TYPE GH44-01361B
UNIT-20P,EARPHONE,SIL,B-TYPE GH59-03848B
LABEL(P)-WATER SOAK GH68-02026A
LABEL(P)-WATER SOAK GH68-02026A
MANUAL USERS-XEG GERMAN GH68-12415A
LABEL(R)-MAIN(EU) GH68-12733A
BOX-UNIT(EU) GH69-04558A
CUSHION-CASE(EU) GH69-04565A
RMO-RUBBER SIM GH73-08686A
MPR-BOHO VINYL MAIN WIN GH74-16880A
MPR-INSU TAPE GH74-27455A
MPR-INSU TAPE GH74-27456A
MPR-ELEC TAPE GH74-27457A
MPR-ELEC TAPE GH74-27495A
MPR-TAPE LABEL GH74-28874A
MPR-INSU TAPE GH74-29298A
MPR-SPONGE GH74-29496A
MPR-TAPE S UPPER GH74-29611A
MPR-VINYL BOHOREAR GH74-29677A
MPR-VINYL BOHO MAIN STA GH74-29774A

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Exploded View/Disassembly&Assembly Instructions
5-4
This Document can not be used without Samsung's authorization
1) Be careful of body damage and scretch
2) Be careful of transforming the rear cover
1) Be careful of body damage and scretch
1) Be careful of damaging F-PCB 1) Be careful of damaging components
1) Remove the RF Sheet,SCREW Cover of rear
2) Unscrew 5 screws
11) Remove the volumn Key
2) Disassemble the connector
2
31) Open the T-Flash, power cover
2) Lift main board
3) Detach the LCD Connector after slide down
41) Separate board from the set
5-3. Disassembly and Assembly Instructions
―Disassembly

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Exploded View/Disassembly&Assembly Instructions
5-5
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1) Be careful of damaging FPCB detaching Volumn Key
Fpcb
2) Be careful of body damage and scretch
1) Be careful of body damage and scretch
5 6
7 8
1) Remove the EMI tape 1) Detach the Volumn Key Fpcb
2) Disassemble key-can from the point of
the picture
1) Disassemble the key-pad 1) Unscrew 2 screws

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Exploded View/Disassembly&Assembly Instructions
5-6
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1) Be careful of body damage and scretch 1) Be careful of cutting wire
2) Be careful of body damage and scretch
1) Be careful of body damage and scretch
2) Be careful of damaging F-PCB
1) Be careful of body damage and scretch
2) Be careful of damaging camera F-PCB
9 10
11 12
1) Unscrew 4 screws
2) Disassemble the upper with a couple of
thumbs pressing the point of picture
1) Match the hole of LOWER and FRONT
holding up the slide
2) Draw out the FPCB from the hole
1) Remove the tape covering FPCB Connector
2) Disassemble FPCB after lifting Connector
1) Disassemble Speaker, Motor
2) Remove the tape on the Camera Connector
3) Disassemble the Camera taking down the
top of the camera

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Exploded View/Disassembly&Assembly Instructions
5-7
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1) Be careful of body damage and scretch
2) Be careful of sticking between two sides tape and
LCD
13 1) Disassemble from upper after lifting
lightly the upside of the Sub PBA
2) Disassemble SPK, MOT, CAMERA
1) Disassemble Sub Key Pad
15