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Samsung SGH-X300 Service Manual

Samsung mobile phone service manual
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GSM TELEPHONE
GSM TELEPHONE
SGH-X300
CONTENTS
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  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-X300 GSM TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded Views and Parts List Main Electrical Parts List PCB Diagrams Block Diagrams ※ Disassembling Manual ※ Assembling Manual...
  • Page 2 ⓒ This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable International and/or domestic law. Code No.: GH68-09643A 2006. 03. Rev.1.0...

  • Page 3: Specification

    1. SGH-X300 Specification 1-1. GSM General Specification GSM900 E G S M 9 00 DCS1800 PC S1 90 0 Ph ase 1 Ph ase 2 Ph ase 1 Freq. Ban d [M Hz ] 89 0~ 91 5 88 0~ 91 5...

  • Page 4: Gsm Tx Power Class

    SGH-X300 Speclflcation 1-2. GSM Tx Power Class TX Power TX Power TX Power GSM900 DCS1800 PCS1900 control level control level control level 33±2 dBm 30±3 dBm 30±3 dBm 31±2 dBm 28±3 dBm 28±3 dBm 29±2 dBm 26±3 dBm 26±3 dBm 27±2 dBm...

  • Page 5: Flow Chart Of Troubleshooting

    Flow Chart of Troubleshooting 2. SGH-X300 1. Baseband 2-1-1. Power ON 'Power ON' does not work check the current consumption Download again >= 100mA Check the Voltage of the Battery Charge the battery >= 3.3V Check the pin C152, Check C153,C155,C168 of "Power On"...
  • Page 6 SGH-X300 Flow Chart of Troubleshooting VCCD VCCA C200 C201...
  • Page 7 SGH-X300 Flow Chart of Troubleshooting 2-1-2. Initial Initial Failure check the pin RSTB of U300 is Check U300 LOW? Check check the pin CKI of U300 is 13Mhz? R103,R107,R200,C130 Check the clock signal check at pin #3 of OSC100 OSC100...
  • Page 8 SGH-X300 Flow Chart of Troubleshooting R103 R104 C130 13MHZ_BB CLK13M_TR R106 C131 CLK13M_MC R107 CLK13M_YMU VCC_1.8A VCCD VRTC C305 C306 C307 C308 VCC_1.8A VCCD VREF CLK13M_TR TR_RST DSP_TDO...

  • Page 9: Sim Part

    SGH-X300 Flow Chart of Troubleshooting 2-1-3. Sim Part "Insert SIM" is displayed on the LCD The voltage is 2.8V Check the U200 at the pin#1 of CN200 Is there any signal Check the U200 & U300 pin #2,3,4 of CN200?
  • Page 10 SGH-X300 Flow Chart of Troubleshooting...

  • Page 11: Microphone Part

    SGH-X300 Flow Chart of Troubleshooting 2-1-4.Microphone Part * Call with Sim before testing. MicroPhone does not work Check the soldered Resolder microphone status of microphone Check the reference Resolder or change voltage on mic path R414 ¡ Ö 2.0V Is microphone OK?
  • Page 12 SGH-X300 Flow Chart of Troubleshooting R401 C400 C401 V410 C402 C403 MICOUTP MIC+ R402 L400 MICINP MIC+ C404 R404 C405 C406 MIC1 MICINN L401 R406 C407 MICOUTN VCCA C408 V411 R408 C409 R409 R410 R412 C411 C412 R413 R414 R415...

  • Page 13: Speaker Part

    SGH-X300 Flow Chart of Troubleshooting 2-1-5. Speaker Part There is no sound from speaker Check the connection status of LCD connector reconnect CN800 CN800 Are there any signal at the speaker pad on LCD Replace the speaker module PCB? Check R403, R405 of Check U600 U400.
  • Page 14 SGH-X300 Flow Chart of Troubleshooting 2-10...

  • Page 15: Lcd Backlight

    SGH-X300 Flow Chart of Troubleshooting 2-1-6. LCD backlight Backlight does not work Backlight ON "TIME" Select backlight "15 sec" mode mode in the menu? Check conecting between PBA and LCD Check FPCB conector Check U701 pin #8 = Check the LCD...
  • Page 16 SGH-X300 Flow Chart of Troubleshooting 2-2. RF 2-2-1. GSM Rx CONTINOUS RX ON RF INPUT : 62CH AMP : -50dbm Normal condition Check ANT, R101,R102,C104,L102 catch the channel ? Check U102 Resolder or change pin 12 ¡ Ã CN100, L101, L102, C100, C105, C106...
  • Page 17 SGH-X300 Flow Chart of Troubleshooting 2-13...
  • Page 18 SGH-X300 Flow Chart of Troubleshooting 2-2-2. DCS Rx CONTINOUS RX ON RF INPUT : 698CH AMP : -50dbm Normal condition catch the Check ANT,R101,R102,C104,L102 channel ? Check U102 Resolder or change pin 12 ¡ Ã CN100, L101, L102, C100, C105, C106...
  • Page 19 SGH-X300 Flow Chart of Troubleshooting 2-15...
  • Page 20 SGH-X300 Flow Chart of Troubleshooting 2-2-3. PCS Rx CONTINOUS RX ON RF INPUT : 660CH AMP : -50dbm Normal condition catch the Check ANT,R101,R102,C104,L102 channel ? Check U102 Resolder or change pin 12 ¡ Ã CN100, L101, L102, C100, C105, C106...
  • Page 21 SGH-X300 Flow Chart of Troubleshooting 2-17...
  • Page 22 SGH-X300 Flow Chart of Troubleshooting 2-18...
  • Page 23 SGH-X300 Flow Chart of Troubleshooting 2-2-4. GSM Tx CONTINUS TX ON CONDITION TX POWER DAC : 554 CODE Check U101 Check and Check U101 APPLIED pin 15 : about change pin 6 : 2.8V ? CH : 62ch 2~3 dbm?
  • Page 24 SGH-X300 Flow Chart of Troubleshooting 2-20...
  • Page 25 SGH-X300 Flow Chart of Troubleshooting 2-2-5. DCS/PCS Tx CONTINUS TX ON CONDITION TX POWER DAC : 560 CODE Check U101 Check and APPLIED Check U101 pin 15 : about change CH : 698CH(DCS), pin 6 : 2.8V ? 2~3 dbm?
  • Page 26 SGH-X300 Flow Chart of Troubleshooting 2-22...

  • Page 27: Exploded Views And Parts List

    QVO01 QFU01 QKP01 QME01 QMI01 QLC01 QSP01 QMP01 QMO01 QVK01 QHI01 QAN05 QFL01 QCR05 QAN02 QRF03 QCR20 QSC01 QRE01 QMW02 QIF01 QCR21 QRF01 QBA01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 QVO01 　 PMO-VOLUME KEY GH72-27403A QFL01 　 MEC-CASE F/LOWER(EU/BLK) GH75-08749A QHI01 MEC-HINGE ASSY GH75-09442A 　 QRE01 　 MEC-CASE REAR(EU/BLK) GH75-08747A 　 QRF03 PMO-COVER EAR GH72-27401A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 MPR-VINYL BOHO LCD GH74-19660A MPR-TAPE EMI PBA 1 GH74-21765A MPR-TAPE EMI PBA 2 GH74-21766A MPR-TAPE EMI PBA 3 GH74-21767A MPR-TAPE INSULATION JTAG GH74-21768A MPR-TAPE INSULATION PBA GH74-21769A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 3-2. Test Jig (GH80-03304A) 3-3-1. RF Test Cable 3-3-5. DATA CABLE 3-3-3. Serial Cable (GH39-00283A) (GH39-00127A) 3-3-4. Power Supply Cable 3-3-2. Test Cable 3-3-6. TA (GH39-00304A) (GH44-00954A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 31: Main Electrical Parts List

    2203-006183 C213 C-CER,CHIP 2203-006562 C214 C-CER,CHIP 2203-006562 C215 C-CER,CHIP 2203-006562 C216 C-CER,CHIP 2203-006562 C217 C-CER,CHIP 2203-006562 C218 C-CER,CHIP 2203-000254 C219 C-CER,CHIP 2203-005061 C220 C-CER,CHIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 2203-000278 C420 C-CER,CHIP 2203-005482 C421 C-CER,CHIP 2203-000330 C422 C-CER,CHIP 2203-000330 C424 C-CER,CHIP 2203-000254 C425 C-CER,CHIP 2203-001405 C501 C-CER,CHIP 2203-000940 C502 C-TA,CHIP 2404-001415 C503 C-CER,CHIP 2203-005061 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 C-CER,CHIP 2203-000854 CON100 CONNECTOR-COAXIAL 3705-001358 D714 DIODE-TVS 0406-001210 D715 DIODE-TVS 0406-001210 D716 DIODE-TVS 0406-001210 EAR400 JACK-EAR PHONE 3722-002356 F100 DUPLEXER-FEM 2911-000030 F800 FILTER-EMI SMD 2901-001311 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 0601-002037 LED710 0601-002037 LED711 0601-002037 LED712 0601-002037 LED713 0601-002037 LED714 0601-002037 LED715 0601-002037 OSC100 CRYSTAL-SMD 2801-004426 OSC300 CRYSTAL-SMD 2801-003856 R101 R-CHIP 2007-001298 R102 R-CHIP 2007-002970 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 2007-000143 R315 R-CHIP 2007-000140 R401 R-CHIP 2007-000162 R402 R-CHIP 2007-007107 R403 R-CHIP 2007-007142 R404 R-CHIP 2007-000174 R405 R-CHIP 2007-000148 R406 R-CHIP 2007-000174 R407 R-CHIP 2007-007142 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 2007-003004 R704 R-CHIP 2007-003004 R705 R-CHIP 2007-003004 R706 R-CHIP 2007-003004 R707 R-CHIP 2007-003004 R708 R-CHIP 2007-003004 R709 R-CHIP 2007-003004 R710 R-CHIP 2007-003004 R711 R-CHIP 2007-000138 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 IC-CMOS LOGIC 0801-000796 U400 IC-ANALOG SWITCH 1001-001371 U401 IC-VOLTAGE COMP. 1202-001068 U500 IC-MELODY 1204-002161 U501 IC-ANALOG SWITCH 1001-001231 U502 IC-AUDIO AMP 1201-002348 U503 IC-TUNER 1204-002510 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 0406-001231 VR800 VARISTOR 1405-001082 ZD400 DIODE-TVS 0406-001104 ZD800 DIODE-ZENER 0403-001547 ZD801 DIODE-ZENER 0403-001427 ZD802 DIODE-TVS 0406-001190 ZD803 DIODE-TVS 0406-001190 ZD804 DIODE-TVS 0406-001190 ZD805 DIODE-ZENER 0403-001547 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 39: Pcb Diagrams

    5. SGH-X300 PCB Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 SGH-X300 PCB Diagrams 5 - 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 41: Block Diagrams

    6. SGH-X300 Block Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 42: Disassembling Manual

    Disassembling Manual 1) After connector we disjointing PBA. 2) Remove the foreign object projection Tape. 1) It uses assembly stick and the HOOK of the right side lower part confidential talk it disjoints with the outer side which it will call. 1) Loosen a screw this four point form Rear.
  • Page 43 1) By using a assembly stick we disjoint between Folder Upper and lower (it's same process right and left) 1) Remove a Motor tape by using a pinset. 1) Remove a EMI tape by using a pinset. 1) Be care of scratch and molding damage. 1) Be care of scratch and molding damage.

  • Page 44: Assembling Manual

    Assembling Manual 1) Inter a Motor and Speaker and pushing. 1) Wire must not rid on LCD bracket guide. The wire arrangement must be like this picture. 1) Be care of wire arrangement and damage. 1) Be care of wire arrangement and damage. 1) Insert the FPCB at hole and fixed LCD.
  • Page 45 1) Insert Folder hinge into Front. 1) Sticking the foreign object projection Tape by using a pinset. 1) Inter a PBA into the Front and assembling connector. 2) Insert Keypad and Side Key. 1) Be care of scratch and molding damage. 1) Be care of scratch and molding damage.

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