Samsung SGH-C400 User manual

GSM TELEPHONE
SGH-C400
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

Samsung Electronics Co.,Ltd.
2006. 09 Rev.1.0
ⓒ
This Service Manual is a property of Samsung Electronics Co.,Ltd.
Any unauthorized use of Manual can be punished under applicable
International and/or domestic law.

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. Pre-requsite for Downloading...........................................................4-2
4-2. S/W Downloader Program................................................................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
8. PCB Diagrams

CONTENTS
9. Flow Chart of Troubleshooting
9-1. Pown on.......................................................................................9-1
9-2. Initial............................................................................................9-5
9-3. SIM Part.......................................................................................9-7
9-4. Charging Part................................................................................9-9
9-5. Microphone Part...........................................................................9-12
9-6. Speaker Part...............................................................................9-14
9-7. Camera Part................................................................................9-16
9-8. RF
9-8-1. GSM900 Rx..............................................................................9-20
9-8-2. DCS Rx....................................................................................9-22
9-8-3. PCS Rx....................................................................................9-24
9-8-4. GSM900 Tx..............................................................................9-26
9-8-5. PCS/DCS Tx.............................................................................9-28
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
    
              
          
        
             
             
   
          
               
 
                   
         
                  
        

SAMSUNG Proprietary-Contents may change without notice
2. Specification
2-1
This Document can not be used without Samsung's authorization
EGSM 900
Phase 2 DCS 1800 Phase 1 PCS 1900 Phase 1
Freq. Band[MHz]
Uplink/Downlink 880~915 925~960 1710~1785 1805~1880 1850~1910 1930~1960
ARFCN range 975~1023
1~124 512~885 512~810
Tx/Rx spacing 45MHz 95MHz 80MHz
Mod. Bit rate/
Bit Period 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
Modulation 0.3GMSK 0.3GMSK 0.3GMSK
MS Power 33dBm~5dBm 30dBm~0dBm 30dBm~0dBm
Power Class 5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl
Sensitivity -102dBm -100dBm -100dBm
TDMA Mux 8 8 8
Cell Radius 35Km 2Km 2Km
Operating
Temperature -20°C ~ +50°C
2-1. GSM General Specification

SAMSUNG Proprietary-Contents may change without notice
Specification
2-2
This Document can not be used without Samsung's authorization
2-2. GSM Tx Power Class
TX Power
control level EGSM900
5 33±2 dBm
6 31±2 dBm
7 29±2 dBm
8 27±2 dBm
9 25±2 dBm
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
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
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 PCS1900
0 30±3 dBm
1 28±3 dBm
2 26±3 dBm
3 24±3 dBm
4 22±3 dBm
5 20±3 dBm
6 18±3 dBm
7 16±3 dBm
8 14±3 dBm
9 12±4 dBm
10 10±4 dBm
11 8±4dBm
12 6±4 dBm
13 4±4 dBm
14 2±5 dBm
15 0±5 dBm

SAMSUNG Proprietary-Contents may change without notice
3.  
3-1
This Document can not be used without Samsung's authorization
 
- Tri Band(900/1800/1900)
-FR+EFR+HR
-GPRSClass10
-16Poly
-Intenna
- SMS,MMS,WAP1.2
- Phonebook 500ea

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
Software Downloading
Power Supply Cable
Serial Cable(CSA LL64151-A)
Test Jig (GH80-03304A) Data cable (GH39-00127A)

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-2
This Document can not be used without Samsung's authorization
4-1. Pre-requsite for Downloading
• Downloader Program (OptiFlash.exe for SGH-C400 )
• SGH-C400 Mobile Phone
• Data Cable
• Binary file
4-2. S/W Downloader Program
■Load the binary download program by executing the “OptiFlash.exe”
■Connect data cable to Mobile phone
1. Options / Settings
1) COM Port
- select COM Port and Transfer Speed (921600)
2) Flash and Verify
- Check the Reserved Memory Regions ( )
3) Generic
- Select Check box
□Differences Only (for minor change)
□Erase All Unused Regions (for fully renewing)
2.File / Open
- Select the binary file (*.s3)

SAMSUNG Proprietary-Contents may change without notice
Array course control
4-3
This Document can not be used without Samsung's authorization
3. Click "Flash" and write down "yes"
then "OK"
4. Power on the mobile phone

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. Cellular phone Exploded View
QFU01
QME03
QLC01
QCA01
QHI01
QFL01
QCR05
QSC01
QMW02
QME11
QRF03
QVO01
QME01
QRF01
QCR08
QFR01
QMI03
QKP01
QMI01
QMP01
QAN05
QAN02
QRE01
QIF01
QCR05
QBA00
QBA01
QSP01
QMO01
QCW01

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. Cellular phone Parts list
QAN02 INTENNA-SGHC400 GH42-00965A
QAN05 ASSY MEC-INTENNA CONN RUBBER GH75-08200A
QBA00 ASSY CASE-BATTERY GH98-02268A
QBA01 INNER BATTERY PACK-750MAH BLK GH43-02489A
QCA01 UNIT-CAMERA GH59-03371A
QCR05 SCREW-MACHINE 6001-001478
QCR05 SCREW-MACHINE 6001-001478
QCR08 SCREW-MACHINE 6001-001456
QCW01 PCT-WINDOW CAMERA GH72-33398A
QFL01 ASSY CASE-FOLDER LOWER GH98-01683A
QFR01 ASSY CASE-FRONT GH98-01684A
QFU01 ASSY CASE-CASE FOLDER UPPER(TI GH98-01917A
QHI01 ASSY MEC-HINGE(CAN TYPE) GH75-04662A
QIF01 PMO-COVER IF GH72-32906A
QKP01 ASSY KEYPAD-(CHE/BLK) GH98-01686A
QLC01 ELA UNIT-SGHC406 LCD MODULE KI GH96-02368A
QME01 UNIT-METAL DOME GH59-03351A
QME03 PCB-SGHC406CON TO CON GH41-01306A
QMI01 MICROPHONE-ASSY-6.25MM GH30-00178F
QMI03 RMO-RUBBER MIC GH73-04805A
QMO01 MOTOR DC-SGHC406 GH31-00270A
QMP01 A/S MATERIAL ASSY-PBA MAIN GH82-02013A
QMW02 PCT-WINDOW MAIN GH72-32980A
QRE01 ASSY CASE-REAR GH98-01685A
QRF01 MPR-TAPE COVER RF GH74-25341A
QRF03 PMO-COVER EAR JACK GH72-32907A
QSC01 MPR-TAPE COVER SCREW GH74-25342A
QSP01 SPEAKER 3001-002012
QVO01 ASSY KEY-VOLUME GH98-02013A

SAMSUNG Proprietary-Contents may change without notice
Exploded View/Disassembly&Assembly Instructions
5-3
This Document can not be used without Samsung's authorization
ADAPTOR-SGHE715 TA(JAPAN) GH44-00643A
RMO-RUBBER CAMERA CHIP GH73-07630A
RMO-RUBBER CODEC CHIP GH73-07631A
RMO-RUBBER MAIN CHIP GH73-07632A
RMO-RUBBER MEMORY CHIP GH73-07633A
MPR-TAPE GASKET DOME SHEET GH74-25344A
MPR-TAPE GASKET IF FRONT GH74-25345A
MPR-INSU TAPE GH74-26147A
LABEL(P)-WATER SOAK GH68-02026A
MPR-VINYL BOHO DECO REAR GH74-26518A
MPR-BOHO VINYL LCD CONN GH74-15350A
MPR-TAPE GASKET LCD GH74-25372A
MPR-SPONGE MOTOR GH74-25381A
MPR-TAPE LCD FPCB GH74-26060A
MPR-INSU TAPE GH74-19260A
MPR-TAPE WINDOW MAIN GH74-25438A
MPR-F/LOWER BOHO VINYL GH74-05004A
MPR-TAPE FRONT FPC GH74-26057A
MPR-TAPE LCD TOP GH74-26059A
MPR-VINYL BOHO DECO FOLDER UPP GH74-26517A
MPR-INSU TAPE, UPPER TOP GH74-26690A
MPR-VINYL BOHO MAIN WIN GH74-26719A
MPR-VINYL BOHO DECO REAR GH74-26518A
MANUAL USERS-LTNENGLISH GH68-11685A
MANUAL USERS-LTN SPANISH GH68-11686A
BAG PE 6902-000634
LABEL(R)-MAIN(LTN) GH68-11763C
CUSHION-CASE(NEW-1) GH69-04326A
LABEL(P)-MIAMI GH68-12219A
BOX-UNIT(LTN) GH69-04480B
UNIT-EARPHONE ,SIL GH59-03624A

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 not to make scratch and molding damage!
1) Be careful not to make scratch and molding damage!
2) Should unlock bottom part of the Rear cover first,
and next, mid part etc...
1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!
1) Unscrew a Rear Cover(There are 4 points)
1
1) Lift up the Rear Cover by unlocking two
hooks on the bottom side.
2
3
1) Release the LCD CON TO CON.
4
1) with the folder being opened, Separate
the PBA.
5-3. Disassembly&Assembly Instructions
― Disassembly

SAMSUNG Proprietary-Contents may change without notice
Exploded View/Disassembly&Assembly Instructions
5-5
This Document can not be used without Samsung's authorization
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage the LCD CON TO CON!
(Con to con FBCB is torn very easily)
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage the LCD CON TO CON!
(Con to con FBCB is torn very easily)
1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage!
5 6
7 8
1) Disassemble KEY PAD, DUST PROTECT
TAPE and SIDE KEY.
1) Remove the two SCREW CAPS and Unscrew
the UPPER COVER
1) With grabbing Folder using one hand, Pull
back Front Cover using the other hand.
1) Unlock the bottom side of the Folder Ass'y
(There are hooks both side -Left and Right)

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 not to make scratch and molding damage!
2) Be careful not to damage the Motor Wire!
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage the SPK Wire!
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage the CON TO CON!
1) Be careful not to make scratch and molding damage!
2) Be careful not to damage the Camera FBCB
5 6
7 8
1) Disassemble MOTOR.
1) Disassemble LCD Module.
1) Disassemble SPK.
1) Disassemble Camera