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Samsung SGH-E300 Service Manual

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SERVICE
GSM TELEPHONE
GSM TELEPHONE
SGH-E300
Manual
CONTENTS
1.
Specification
2.
Flow Chart of Troubleshooting
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
Block Diagrams
6.
PCB Diagrams

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Summary of Contents for Samsung SGH-E300

  • Page 1 GSM TELEPHONE SGH-E300 Manual SERVICE GSM TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams...

  • Page 2: Specification

    Power Cl a ss 5pcl ~ 15pcl 5pcl ~ 19pcl 0pcl ~ 15pcl Sensit ivit y - 102dBm -102dBm - 100dBm TDMA Mux Cell Radius 35Km 35Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 3: Gsm Tx Power Class

    14±3 dBm 15±2 dBm 12±4 dBm 13±2 dBm 10±4 dBm 11±3 dBm 8±4dBm 9±3dBm 6±4 dBm 7±3 dBm 4±4 dBm 5±3 dBm 2±5 dBm 0±5 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Flow Chart Of Troubleshooting

    Check the clock signal at pin4 of Check the clock generation OSC801 circuit Freq=13MHz ? Vrms≥300mV ? Vpp is around 900mVpp ? Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 2. Initial Initial Failure Check the signal at the pin 19 of U102 is Check U102 "High" when the phone is boot on Check the pin 25 of Check the U701 U100 is "High"...

  • Page 6: Charging Part

    SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 4. Charging Part Abnormal charging part Check the pin 17, 18 of CN300 is Replace TA,Check CN300 TA_VEXT>4? Check the pin 2 of Check the Q102 Q102 is "low"? Check the pin 3 of Check the Q100 Q100 is "low"?
  • Page 7 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams ( Picture 1) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams (Picture 2) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams (Picture 3) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Microphone Part

    SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 5. Microphone Part Microphone does not work check the soldered Resolder microphone status of microphone. Check the reference Resolder or change voltage on mic path R424,C431,R413,C410,R408,R411 C431 ≒ 2.5 V Is microphone ok? Check U701 6.
  • Page 11 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 12: Camera Part

    SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 7. Camera Part "Camera" function dose not work Check the connect Connect the camera module CN201 U1002 PIN 9,10 = 2.8V? Check U1002 and C1022,C1021 R1020 = 25MHz Check U1001 and OSC1000...
  • Page 13 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 2-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 2.RF 1. EGSM RX CONTINUOUS RX ON RF INPUT : 62CH NORMAL CONDITION CHECK AMP : -50dBm catch the channel? ANT701,L905 contact ? F900 CHECK C900, F901 pin8 ≥ -65dBm ? resolder or change...
  • Page 15 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 2. DCS RX CONTINUOUS RX ON RF INPUT : 698CH AMP : -50dBm CHECK NORMAL CONDITION catch the channel? ANT701,L905 contact ? F900 CHECK C900, F901 pin8 ≥ -65dBm ? resolder or change...
  • Page 16 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 3. EGSM TX CONTINUS TX ON CONDITION F900 F900 pin 13 : U702,U703 pin1 : 2.8 V? TX POWER DAC: 600 CODE APPLIED about 2~3 dBm? check & change CH : 62...
  • Page 17 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams 5. DCS TX F900 pin 13 : CONTINUOUS TX ON CONDITION F900 U702,U703 about 2~3 dBm? CH : 698CH(DCS) pin6 : 2.8 V? check & change TX POWER CODE: 520 CODE Aplied...
  • Page 18 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams (Picture 1) 2-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams (Picture 2) 2-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 SGH-E300 Flow Chart of Troubleshooting and Circuit Diagrams (Picture 3) 2-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 3. SGH-E300 Exploded View and its Parts list 1. Cellular phone Exploded View QFR01 QFU01 QVO01 QKP01 QCA01 QMP01 QLC66 QVK01 QSP01 QMI01 QME02 QMO02 QAN01 QIF02 QCK01 QRE01 QFL01 QCR06 QSC03 QCR04 QMW01 QRF01 QSC05 QSC08 QBA21 SAMSUNG Proprietary-Contents may change without notice...
  • Page 22 GH30-00062A QIF02 IF COER GH73-01394A QCK01 CAMKEY GH75-04735A QAN01 ANTENNA GH42-00362A QRE01 REAR COVER GH75-03868A QRF01 RF COVER GH72-14790A QCR06 SCREW 6001-001155 QBA21 BATTERY GH43-01234A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 3. Test Jig ( GH80-00865A ) 3-1. RF Test Cable 3-2. Test Cable 3-3. Serial Cable (GH39-00090A) (GH39-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE 3-6. TA (GH39-00159A) (GH44-00184A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 24: Electrical Parts List

    R102,R606 1209-001219 U602 2007-007200 R702,R703 2007-000070 L905 2007-007306 R904 2007-000138 R804 2007-007308 R607,R608 2007-000140 R304,R305,R306,R307 2007-007766 R802 2007-000140 R308,R309,R310,R312 2203-000233 C1011,C1013,C118 2007-000140 R313,R420,R424 2203-000233 C429,C801,C802 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 F901 2203-005061 C404,C409,C417,C507 3709-001229 CN101 2203-005061 C608,C706,C432 3710-001816 CN300 2203-005065 C410,C423,C705 3711-005212 CN201 2203-005138 C233,C250 3722-002082 CN400 2203-005234 C912,C913,C914,C915 4302-001130 M101 2203-005480 C607,C708,C709 1205-002433 U800 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 SGH-E300 Electrical Parts List SEC Code Design LOC GH09-00025A U601 GH13-00020A U1001 NEW-F000001 F900 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 27: Block Diagrams

    π/ 2 Si 4205 DSP16000 SERIAL DATA, SERIAL DATA ARM7TDMI CLK, INTERFACE GSM:890MHz~915MHz D E T DCS:1710MHz~1785MHz TCVCXO 13 MHz A F C C L K SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 DAIRN DAIDO 32.768KHz DAIDI JTAG/ICE KEYBOARD Audio Part JTAG/ICE Audio FLASH FLASH SRAM SRAM B'D B'D conn. (16M) (16M) (64M) (64M) Keypad CAMERA Memory part SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 29: Pcb Diagrams

    Q100 C805 R804 L903 U102 U101 C915 C107 L900 C914 R425 C413 C913 C911 C430 C118 C912 C203 R203 C102 C105 C104 C103 C804 LED217 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 2. Main Bottom Diagram CN203 LED213 LED214 C255 C253 C216 SEND U401 R112 LEFT Q104 C415 C411 C206 MIC401 Q102 RIGHT R103 C205 END_PWD LED211 SIDE LED212 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. AUG..2004 Printed in Korea. This Service Manual is a property of Samsung Electronics Co.,Ltd. Code No.: GH68-05427A Any unauthorized use of Manual can be punished under applicable International and/or domestic law. BASIC.

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