Samsung SGH-L770 Service Manual
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Samsung SGH-L770 Service Manual

Samsung SGH-L770 Service Manual

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UMTS TELEPHONE
SGH-L770
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UMTS TELEPHONE

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Summary of Contents for Samsung SGH-L770

  • Page 1: Table Of Contents

    UMTS TELEPHONE SGH-L770 CONTENTS UMTS TELEPHONE 1. Safety Precautions 2. Specification 3. Product Function 4. Array course control 5. Exploded View and Parts list 6. MAIN Electrical Parts List 7. Disassembly and Assembly Instructions 8. Block Diagrams 9. PCB Diagrams 10.
  • Page 2 China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com 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. 2008. 05 Rev.1.0...

  • Page 3: Safety Precautions

    ● Don't use as you pleases after change other material than replacement registered on SEC System. Otherwise engineer in charge isn't charged with problem that you don't keep this rules. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 4 ● You must maintain electric contact between ESD and place due to be set up until ESD is connected completely to the proper place or a circuit board. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Specification

    0 pcl ~ 15 pcl Power class 3 Sensitivity -102 dBm -100 dBm -100 dBm -106.7dBm T DM A M u x Cell Radius 35 Km 2 Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 6: Gsm Tx Power Class

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

  • Page 7: Product Function

    - Bluetooth CSR V2.0 support - External memory support - 2M camera support - RF support band : GSM 900 + DCS1800 + PCS 1900 + WCDMA2100 (band1) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 8: Array Course Control

    4. Array course control Test Jig (GH80-03307A) Serial Cable RF Test Cable Test Cable (GH39-00397A) (GH39-01106A / GH39-01104A) Power Supply Cable DATA CABLE (GH39-00922A) (GH44-01702A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Software Downloading

    - L770XXYY.fls : Main source code binary 4-2. Pre-requsite for Downloading ㆍ Driver Program(FlashUsb.sys) ㆍ Downloader Program(FlashTool_E2.exe) ㆍ L770 Mobile Phone ㆍ Data Cable ㆍ Binary files SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 Array course control 4-3. USB Driver Installation Guide SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 Array course control 4-4. Flash Tool Usage Guide SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 Array course control SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 After finishing downloading, Certain memory resets should be done to guarantee the normal performance. Confirm the downloaded version name and etc. : *#1234# Full Reset : *2767*3855# SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 16: Exploded View And Parts List

    QCR05 QKP02 QCA02 QCR47 QAR01 QMP01 QMO01 QME02 QME01 QLC01 QAN06 QCA01 QSH01 QPC01 QMI03 QSP01 QAN02 QRF01 QFL01 QRE01 QCR05 QHI01 QCR06 QBA01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 17: Cellular Phone Parts List

    PMO KEY-VOLUME GH72-45846B QFU01 ASSY CASE-SLIDE UPPER(OPEN/BLK GH98-07224B QMW01 ASSY COVER-WINDOW MAIN(OPEN) GH98-07225A QFR01 ASSY CASE-FRONT GH98-07228B QIF01 PMO COVER-IF GH72-45844B QSD01 PMO COVER-MICRO SD GH72-45845B SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 18: Main Electrical Parts List

    IC-MULTI REG. 1204-002746 U503 IC-TUNER 1205-003099 U201 IC-TRANSCEIVER 1205-003235 U101 IC-DATA COMM./GEN. 1205-003325 U302 IC-DATA COMM./GEN. 1404-001165 TH201 THERMISTOR-NTC 1405-001082 VR601 VARISTOR 1405-001082 VR603 VARISTOR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 R-CHIP 2007-000171 R506 R-CHIP 2007-000171 R700 R-CHIP 2007-001316 R210 R-CHIP 2007-007107 R204 R-CHIP 2007-007107 R325 R-CHIP 2007-007107 R417 R-CHIP 2007-007132 R432 R-CHIP 2007-007311 R314 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 R-CHIP 2007-008052 R436 R-CHIP 2007-008054 R703 R-CHIP 2007-008054 R704 R-CHIP 2007-008054 R705 R-CHIP 2007-008054 R707 R-CHIP 2007-008055 R207 R-CHIP 2007-008055 R209 R-CHIP 2007-008055 R416 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 R-CHIP 2007-008483 R423 R-CHIP 2007-008483 R424 R-CHIP 2007-008483 R428 R-CHIP 2007-008483 R431 R-CHIP 2007-008483 R440 R-CHIP 2007-008483 R445 R-CHIP 2007-008486 R430 R-CHIP 2007-008516 R112 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 R-CHIP 2007-009111 R321 R-CHIP 2007-009167 R415 R-CHIP 2007-009315 R203 R-CHIP 2007-009408 R501 R-CHIP 2007-009408 R507 R-CHIP 2007-009409 R714 R-CHIP 2007-009409 R734 R-CHIP 2007-009419 R420 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 C-CER,CHIP 2203-005234 C213 C-CER,CHIP 2203-005234 R106 C-CER,CHIP 2203-005281 R104 C-CER,CHIP 2203-005281 R107 C-CER,CHIP 2203-005288 C208 C-CER,CHIP 2203-005383 R103 C-CER,CHIP 2203-005482 C319 C-CER,CHIP 2203-005482 C320 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 C-CER,CHIP 2203-005736 C556 C-CER,CHIP 2203-005736 C557 C-CER,CHIP 2203-005736 C558 C-CER,CHIP 2203-005736 C701 C-CER,CHIP 2203-005736 C702 C-CER,CHIP 2203-005736 C712 C-CER,CHIP 2203-005736 C722 C-CER,CHIP 2203-005740 C707 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 C-CER,CHIP 2203-006260 C427 C-CER,CHIP 2203-006260 C502 C-CER,CHIP 2203-006260 C508 C-CER,CHIP 2203-006305 C137 C-CER,CHIP 2203-006307 C610 C-CER,CHIP 2203-006348 C442 C-CER,CHIP 2203-006423 C121 C-CER,CHIP 2203-006423 C127 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 C-CER,CHIP 2203-006423 C602 C-CER,CHIP 2203-006423 C606 C-CER,CHIP 2203-006423 C704 C-CER,CHIP 2203-006423 C706 C-CER,CHIP 2203-006423 C713 C-CER,CHIP 2203-006423 C716 C-CER,CHIP 2203-006423 C717 C-CER,CHIP 2203-006423 C719 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 2203-006562 C603 C-CER,CHIP 2203-006562 C604 C-CER,CHIP 2203-006562 C607 C-CER,CHIP 2203-006562 C700 C-CER,CHIP 2203-006562 C703 C-CER,CHIP 2203-006562 C710 C-CER,CHIP 2203-006647 C223 C-CER,CHIP 2203-006648 C307 C-CER,CHIP 6-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 2203-006872 C438 C-CER,CHIP 2203-006872 C709 C-CER,CHIP 2404-001381 TA400 C-TA,CHIP 2404-001381 TA402 C-TA,CHIP 2404-001381 TA537 C-TA,CHIP 2404-001397 TA711 C-TA,CHIP 2404-001406 TA201 C-TA,CHIP 2404-001506 TA102 C-TA,CHIP 6-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 2703-002961 L704 INDUCTOR-SMD 2703-002961 L705 INDUCTOR-SMD 2703-002961 L706 INDUCTOR-SMD 2703-002961 L707 INDUCTOR-SMD 2703-002961 L708 INDUCTOR-SMD 2703-003125 L202 INDUCTOR-SMD 2703-003125 L206 INDUCTOR-SMD 2703-003196 L501 INDUCTOR-SMD 6-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 CONNECTOR-CARD EDGE 3709-001487 CN701 CONNECTOR-CARD EDGE 3710-002523 IFC601 SOCKET-INTERFACE 3711-005873 HEA702 HEADER-BOARD TO BOARD 3711-006329 BTC701 HEADER-BATTERY 3711-006782 HEA701 HEADER-BOARD TO BOARD 4302-001184 M401 BATTERY-LI(2ND) 6-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 FPC707 ICT-ON-BOARD CLIP GH70-02367A FPC708 ICT-ON-BOARD CLIP Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list. 6-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 32: Disassembly And Assembly Instructions

    1) Notice the both INTENNA and INTENNA scratched. CARRIER not be damaged. 2) Notice the rear case not be deformed. 2) Notice the SLIDE FPCB not be damaged. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 1) Notice the rear case should not be damaged or Connector. Then Separate them from PBA. scratched. ※ Caution 2) Must use the disassembly apparatus. 1) Notice the FPCB not be damaged. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 Exploded View and Parts List 1) Separate UPPER into LCD Module, UPPER, SUB KEY PAD. ※ Caution 1) Notice the UPPER & LCD Module not be damaged SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 1) Notice the FPCB not be damaged. ※ Caution 2) Make sure CAMERA MODULE is exactly in place. 1) Notice the FPCB not be damaged. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 ※ Caution 2) Make sure no gap between the front and rear 1) Make sure the KEY FPCB CONNECTION. case. 2) Keep the guide line SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Exploded View and Parts List 1) Screw 6 points on the rear case. ※ Caution 1) Notice the rear case should not be damaged or scratched. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 38: Block Diagrams

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

  • Page 39: Pcb Diagrams

    C308 C312 C306 R321 R319 R31 7 R318 R316 VR603 R604 R606 R645 R608 VR602 R609 TP_SDRAM_BC0 R64 3 R644 TP_NAND_CSn C601 R440 TP_SDRAM_RASn FPC706 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 C213 D404 R110 L111 D5016 C121 C610 C101 R117 TA402 C138 C426 R427 C135 C132 C111 R109 R10 6 C107 R107 C202 R200 C214 R104 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 41: Chart Of Troubleshooting

    R416 C323 R330 R412 R435 C321 R415 C434 VRTC C422 C313 C403 C303 L403 C401 C402 M401 M401 C436 L401 C706 TA400 R430 C439 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 <Board/LCD (Reassemble) Battery connector contact is poor, Be pressed battery connector contact (insert tweezers into bat connector and pull up 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 VBAT C410 C411 CH_SOURCE C426 C412 C413 C414 C415 C416 C417 C418 CH_CNTRL C409 C421 C422 C423 C419 SENSE_IN1 C424 SENSE_IN2 CHARGE_UC C427 C420 10-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 44: Audio Part

    Check the E/P amp input / output Check U504 (EARAMP2.5V, EARAMP_ C552, C553 / R641, R642 Check U302 Change U302 (VAUDIOA_2.5, VAUDIOB_2.5) Change the board 10-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 45: Flow Chart Of Troubleshooting

    C610 ZD603 25 25 R530 C515 C517 C310 R507 C307 VR606 C545 R711 VR603 R604 R606 R645 R608 VR602 R609 R64 3 R644 C601 10-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 46: Microphone Part

    Check soldering of the IF connector After resoldering, check a sound Check the voltage level of ear-mic bais After check existence of another part, Check PMIC 10-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 R309 R307 R308 C550 C558 C553 C549 C702 R707 C551 C557 R531 C309 C552 C514 R530 C515 C517 C310 R507 C307 VR606 C545 10-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 Re-solder or change >13dBm C200, DUF201 Re-solder or change MOD101 Check MOD101 output power CR, check C115 > 1.4V >13dBm C116 < 0.4V, C117 < 0.4V 10-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 Q202 > -51dBm Check #1 of Q202 =1.8V Check the pin #1 of F202 Resolder or Change L212,C219 >-51dBm Check F202 & C217,C220 resolder or change 10-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 PCN_RX PCS_RX GSM850|EGSM_TX PCS_RX CTRL3 GSM850_RX BF_2G_VC3 GSM850_RX CTRL2 D5016 BF_2G_VC2 EGSM_RX EGSM_RX C202 CTRL1 BF_2G_VC1 R200 WCDMA_ANT WCDMA2100 C214 C115 C116 C117 R104 10-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 51: Fm Radio Part

    Check RTC CLK at TP303 and check B.B or RTC the frequency is 37.768Khz battery(M401) Check I2C control SDA, SCL signal is comming Check the R514, R515 10-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 R515 FM_RADIO_SCL FM_RADIO_SDA C446 R436 R515 C523 R514 C525 R512 C519 L504 C556 L501 Q401 Q501 C524 R511 R428 L505 C442 ZD405 L110 D404 10-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 53: Camera Part

    HSYNC : F705, CAM_D(0) : F704 Check the camera I2C line Check I2C (SCL, SDA) R32 : SDL, R31 : SDA Change the camera module 10-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 L500 C520 C704 L704 L705 L706 R313 R309 R307 R308 C539 C550 C503 R703 C558 C553 C549 C512 C505 C702 C708 R707 C547 C325 10-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 55: Lcd Part

    L500 C520 C704 L704 L705 L706 R313 R309 R307 R308 C539 C550 C503 R703 C558 C553 C549 C512 C505 C702 C708 R707 C547 C325 10-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 56: Bluetooth Part

    4. Using equipment, change BT chip cf. BT chip ball size is very small you'd better consious this point 5. If no more check point change MPU or PBA 10-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 C132 C134 L110 C131 C247 R447 C451 C556 Q401 Q501 C524 R113 C246 C123 ZD405 TP108 L110 R114 R110 L111 C121 C138 C426 C132 10-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 58: Reference Data

    PS : Pilot Symbol QPSK: Quadrature Phase Shift Keying RS : Reed-Solomon SI : Service Information TDM : Time Division Multiplexing TS : Transport Stream 11-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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