Samsung GT-B7620 Service Manual
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Samsung GT-B7620 Service Manual

Samsung GT-B7620 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
GT-B7620(B7620U common)
1. Safety Precautions
2.
Specification
3. Product Function
4. Array course control
5.
6.
7.
8.
9.
10. Reference data
11.
CONTENTS

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Summary of Contents for Samsung GT-B7620

  • Page 1: Table Of Contents

    GSM TELEPHONE GT-B7620(B7620U common) GSM TELEPHONE CONTENTS 1. Safety Precautions Specification 3. Product Function 4. Array course control Exploded View and Parts list MAIN Electrical Parts List Block Diagrams PCB Diagrams Chart of Troubleshooting 10. Reference data Disassembly and Assembly...

  • Page 2: Exploded View And Parts List

    PMO KEY-VOLUME DOUBLE GH72-54551A QCK02 PMO DECO-KEY CAMERA GH72-54552A QCK01 PMO KEY-CAMERA DOUBLE GH72-54553A QCK03 PMO KEY-GA_HOLD GH72-54554A QCW01 PMO CASE-WIN CAMERA 5MEGA GH72-54556A QAN02 INTENNA-GT_B7620 GH42-02150A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 3: Main Electrical Parts List

    ISA1000 1003-002185 U304,U307,U604 NLSV1T34AMX1TCG 1003-002234 U203 TWL1200ZQCR 1009-001035 U602 HED58XXU12 1201-002147 U603 OPA360AIDCKR 1201-002581 F202 ALM-1412 1201-002733 U503 MAX9877EWP 1201-002740 PAM101 TQM7M5012 1201-002888 U103 SKY77187 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 4 AVLC5S01100 1405-001200 VR807,VR808,VR810 AVLC5S01100 1405-001200 VR811,VR813,VR817 AVLC5S01100 1405-001200 VR818 AVLC5S01100 2007-001119 R509,R515 RC1005J681CS 2007-001295 R623 RC1005J390CS 2007-001306 R431,R432 MCR01MZP5J151 2007-003014 R417 TSR16GJ244V 2007-007131 R407 RC1005F133CS SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 ERJ1GENJ104X 2007-008057 R625 MCR006YZPJ151 2007-008263 R409 ERJ2RKF3001X 2007-008354 R425 ERJ2RKF224X 2007-008419 R105,R113,R114,R115 ERJ1GEJ102C 2007-008419 R116,R401,R649 ERJ1GEJ102C 2007-008420 R326,R328 RMC-1/20-330JPA 2007-008483 R339,R706,R803,R804 RMC1/20473JPA 2007-008483 R805,R806,R807 RMC1/20473JPA SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 ERJ1GEF222C 2007-009420 R104 RK73H1HTTC1202F 2007-009766 R106,R108 RC0603J5R1CS 2007-009805 R205,R206 RC0603F510CS 2007-009807 R317 ERJ1GEF9102C 2007-009838 R412 RK73H1HTTC1203F 2007-009954 R418 MCR006YZPF6802 2007-009964 R636 MCR01MZP5F44R2 2007-009969 R410 MCR006YZPF1201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 7 GRP0335C1E270JD01E 2203-005719 C1005 GRP0335C1E390JD01E 2203-005725 C103,C107,C116,C117 GRP0335C1E220JD01E 2203-005725 C118,C129,C131,C132 GRP0335C1E220JD01E 2203-005725 C133,C142,C154,C159 GRP0335C1E220JD01E 2203-005729 C541,C542,C543,C544 CL03C150JAGC 2203-005732 C114,C121,C203,L125 GRP0335C1E680JD01E 2203-005734 C1016 GRM0335C1E820JD01D 2203-005736 C1022,C1023,C104 GRP0335C1E101JD01E SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 GRM33X5R104K6.3 2203-006423 C125,C148,C153,C158 GRM33X5R104K6.3 2203-006423 C163,C303,C306,C309 GRM33X5R104K6.3 2203-006423 C312,C314,C321,C323 GRM33X5R104K6.3 2203-006423 C324,C325,C326,C331 GRM33X5R104K6.3 2203-006423 C335,C337,C338,C340 GRM33X5R104K6.3 2203-006423 C342,C345,C348,C350 GRM33X5R104K6.3 2203-006423 C351,C424,C425,C429 GRM33X5R104K6.3 2203-006423 C430,C431,C432,C442 GRM33X5R104K6.3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 CL05A225KQ5NSNC 2203-006838 C511,C707 CL05A225KQ5NSNC 2203-006839 C201,C401,C618,C619 CL03A104KP3NNNC 2203-006839 C620,C635 CL03A104KP3NNNC 2203-006841 C213,C218,C222,C515 CV05X5R105K16AH 2203-006841 C517,C518,C520,C521 CV05X5R105K16AH 2203-006841 C522,C524 CV05X5R105K16AH 2203-006872 C417,C418,C419,C452 GRM155R60J225ME15D 2203-006872 C465 GRM155R60J225ME15D SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 CIH05T4N7SNC 2703-002309 L407,L408 CIH05T82NJNC 2703-002314 L101 CIH05T47NJNC 2703-002544 L116 LQW15AN8N2H00D 2703-002708 C152 LQW15AN1N5C00D 2703-002793 L110 LQP03TN5N6J00D 2703-002795 C170,L104 LQP03TN22NG00D 2703-002842 L114 LLV0603-F2N2S 2703-002858 C187,L113,L117,L119 HK0603-4N7S-T SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 SAYFP897MCA0B00 2910-000070 F107 SAYFP1G95AA0B00 2910-000073 F105 ACMD-7407-SG1 2911-000128 MOD101 LMSP43QL-771 3301-001342 L601 ACZ1005M-152-T 3301-001729 L201 BLM15AG102SN1D 3301-001756 L203,L301,L501 BLM15HG102SN1D 3301-001778 L801,L802,L803,L804 BLM03AG241SN1D 3301-001778 L805,L806 BLM03AG241SN1D SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 R408,R424,R439,R647 ORT-P RES-Z0603-SHORT-P RES-Z1005-SH R517,R518 ORT-P RES-Z1005-SHORT-P Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list. 6-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Block Diagrams

    7. Block Diagrams 7-1. Main Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 14: Pcb Diagrams

    8. PCB Diagrams IFC801 HY07-AB0700 3722-002840 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 PCB Diagrams SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 16: Chart Of Troubleshooting

    TA801 > 3.1V Check the battery Check the voltage of C451 Check the C451, TA801 C451 = 3.0V D401, R426, R427 & R428 Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 VBAT BTC801 TA801 ZD801 D801 D401 VOVP_5.0V IF_CON_SENSE_USB VREG_MSMP_2.6V R426 R427 R428 U408 VCC_COIN VMOVI_3V VRTC_3.0V_S3C VALIVE_1.2V_S3C VOTGI_1.2V_S3C VSD_VCC_3V VOTG_3.3V_S3C VCC_3.0V_PDA VKEY_LED_3.3V SET1 SET2 SET3 PWREN BUCK1 PWRON BUCK2 PWRHOLD BUCK3 LDO1 AP_N_RST_IN LDO1 LDO2 LDO3 ONO\ LDO2 VIBTONE_EN RSO\ LDO3 LDO4 LDO4...
  • Page 18 Check the Frequency R429 = 32.768KHz Check OSC302 Check OSC601 C629 = 12MHz Check LCD part LCD Display OK? Sound operation OK? Check Speaker part SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 VCC_3.0V_PDA U410 R436 PS_HOLD 3 INB OUTY 4 AP_N_RST_IN AP_PS_HOLD VCOIN_3.0V OSC302 2 3 4 5 8 910 C342 XTAL_12MHZ_IN R635 XTAL_12MHZ_OUT C628 C629...
  • Page 20 T-Flash Breakdown Voltage of C458 < 3V Check U411 There is any signal at Check T/SIM801, ZD802 & ZD803 Pin 6 in T/SIM801 Replace T/SIM801 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 VREG_USIM_3.0V VBAT VREG_RFRX1_2.1V VCOIN_3.0V R439 C403 C465 R408 OUT1 OUT2 OUT3 U402 LDO4 OUT4 OUT5 VTFLASH_3V VREG_USIM_3.0V VCC_3.0V_PDA C801 R801 R802 R803 R804 R805 R806 R807 T/SIM801 SD_DAT2_OUT DAT2 SD_DAT3_OUT CD|DAT3 SD_CMDOUT SD_CLKOUT SD_DAT0_OUT DAT0 SD_DAT1_OUT DAT1 SIM_RST SIM_CLK RESERVED SIM_IO RESERVED SD_DET...
  • Page 22 SIM CARD Breakdown Voltage of C403 < 3V Check U402 There is any signal at Check T/SIM801, ZD802 & ZD803 Pin 11 in T/SIM801 Replace T/SIM801 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 VREG_USIM_3.0V VBAT VREG_RFRX1_2.1V VCOIN_3.0V R439 C403 C465 R408 OUT1 OUT2 OUT3 U402 LDO4 OUT4 OUT5 VTFLASH_3V VREG_USIM_3.0V VCC_3.0V_PDA C801 R801 R802 R803 R804 R805 R806 R807 T/SIM801 SD_DAT2_OUT DAT2 SD_DAT3_OUT CD|DAT3 SD_CMDOUT SD_CLKOUT SD_DAT0_OUT DAT0 SD_DAT1_OUT DAT1 SIM_RST SIM_CLK RESERVED SIM_IO RESERVED SD_DET...
  • Page 24 5V when charging Check U401's pin #11 Check the U802 is about 5V when charging Check U401's pin #4, #11 Check the U401 is "LOW" when charging SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 VUSB_5.0V VBAT VOVP_5.0V VCC_3.0V_PDA MAX8845Z C413 SAFEOUT R404 CHG_ING_N R407 TA_ISET SETI BATT U401 DETBAT _ABO TP_CHG CHG_EN C461 R409 R410...
  • Page 26 Enable BT Function Check U202's pin #15 (Vbat), Check the U202 pin #39 (1.8V) Check BT ANT ANT203 reassemble change Exchange BT Module (U202) 9-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 ANT203 VBAT L208 R207 C224 L204 C214 C216 C215 C217 BT_PCM_DO AUD_IN BT_PCM_DI BT_UART_TXD AUD_OUT HCI_RX BT_UART_RXD HCI_TX BT_PCM_CLK BT_UART_RTS AUD_CLK HCI_CTS BT_PCM_SYNC BT_UART_CTS AUD_FSYNC HCI_RTS BT_EN WLAN_SDIO_D0 BT_EN SDIO_D0|SPI_DOUT TP213 WLAN_SDIO_D1 BT_DBG SDIO_D1 WLAN_SDIO_D2 SDIO_D2 COMBO_38.4M_CLK WLAN_SDIO_D3 FAST_CLK SDIO_D3|SPI_CS CLK32K_COMBO18 U202 WLAN_SDIO_CLK...
  • Page 28 Flow Chart of Troubleshooting VCOMBO_1.8V C212 R205 COMBO_38.4M_CLK C211 R206 OSC201 VCOMBO_1.8V VCOMBO_1.8V VBAT U204 VOUT CLK_REQ C223 C222 9-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 Is the assemble status if Replace slide FPCB connector slide FPCB connector OK? Is the assemble status of Resolder or change receiver receiver OK? 9-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 C534 R519 EARSPK_R CODEC_OUT_L INA1 C535 CODEC_OUT_R EARSPK_L INA2 U503 C536 INB1 INB2 C537 C538 BIAS AUDIO_SDA AUDIO_SCL C539 C540 C543 C544 C541 C542 9-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Is the assemble ststus of speaker module OK? Change speaker module Is there any signal at Check U502 C534,C535? Is there ant signal at C543, Check U503 C544? 9-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 C534 R519 EARSPK_R CODEC_OUT_L INA1 C535 CODEC_OUT_R EARSPK_L INA2 U503 C536 INB1 INB2 C537 C538 BIAS AUDIO_SDA AUDIO_SCL C539 C540 C543 C544 C541 C542 9-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 Change MIC module The voltage of Check the path around MIC bias circuit R513 is about 1.6V? Is there any signal Check U502 at R501,R505? 9-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 R509 C519 TA502 R513 MIC_P C525 M_MIC_P C526 M_MIC_N MIC_N C527 R514 ZD501 ZD502 C502 R501 CODEC_MIC+ CP_MIC+ C505 C506 R505 CODEC_MIC- CP_MIC- C513 9-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Replace or chagne IFC800 Check mic path and bias circuit Does Mic of headset work? Does ear phone if headset Check ear speaker path work? 9-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 L809 JTAG_IF_CON_SENSE C804 IF_TXD BOOT_MODE BOOT IF_RXD JTAG_TXD JTAG_RXD 1 DM VBUS 6 VBAT 3 USB_ID NC 4 R815 C805 U803 IF_CON_SENSE_USB Q801 R816 9-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 37: Key Data Input

    Power Key NG? Power Key Breakdown? Change Key Domesheet Change Domesheet Qwerty Key NG? Breakdown? check the element related (especially register in key colume lines) 9-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 C708 = 3.0V Check U705 C713 = 1.8V C709 = 2.8V Check Mclk & Pclk Check the R711 & R712 Replace the New Camera 9-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 CAM_MCLK 25 25 R712 R711 CAM_M(1) CAM_M(0) CAM_M(3) CAM_M(2) 31 31 CAM_M(5) CAM_M(4) 33 33 CAM_M(7) CAM_M(6) NC NC 35 36 C715 C721 C714 9-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 Check camera FPCB and Re-connect the camera FPCB connector C104 = 1.8V Check U101 C105 = 3.0V Replace the New Camera Replace the New slide FPCB 9-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 CAM_VSYNC 10 10 CAM_SDA 12 12 CAM_D(3) CAM_PCLK 13 13 14 14 CAM_D(2) CAM_D(1) CAM_D(7) 17 17 18 18 CAM_D(0) CAM_D(6) CAM_MCLK CAM_D(5) CAM_D(4) 9-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 Check L202, L203, F202 (2.7V)@ L202 Check the Voltage Check MSM6290 (2.7V)@ R202 Check the function Resolder error parts after Changing GPS LNA (F202) 9-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 L203 ANT201 ANT202 L202 GLNA_ON C204 R202 F202 F201 L206 C206 C220 R203 RX_GPS RF_IN FILT_OUT C208 C210 R203 C220 C208 L20 2 L203 9-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Pin 4 : HIGH 12,13 MOD101 Pin 5 : HIGH Pin 6 : LOW U101 Pin 50,51 Resolder or change L102,L103,L104 >= -75dBm Change U101 & UCP301 9-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Pin 5 : LOW Pin 6: LOW Resolder or change MOD101 U101 Pin 55 Resolder or change C120 >= 5dBm Check U101 & UCP301 9-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Pin 4 : LOW 14,15 MOD101 Pin 5 : HIGH Pin 6 : LOW U101 Pin 48,49 Resolder or change L105,L106,L107 >= -75dBm Change U101 & UCP301 9-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 Pin 5 : LOW Pin 6: LOW Resolder or change MOD101 U101 Pin 55 Resolder or change C115 >= 5dBm Check U101 & UCP301 9-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 48: Dcs Receiver

    16,17 Pin 5 : LOW >= -70dBm Pin 6 : LOW U101 Pin 46,47 Resolder or change L108,L109,L110 >= -75dBm Change U101 & UCP301 9-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 49: Dcs Transmitter

    Pin 5 : LOW Pin 6: LOW Resolder or change MOD101 U101 Pin 56 Resolder or change C118 >= 5dBm Check U101 & UCP301 9-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 50: Pcs Receiver

    Pin 4 : HIGH Pin 5 : LOW Pin 6 : LOW U101 Pin 44,45 Resolder or change L111,L112,L113 >= -75dBm Change MOD101 & UCP301 9-35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 51: Pcs Transmitter

    Pin 5 : LOW Pin 6: LOW Resolder or change MOD101 U101 Pin 56 Resolder or change C118 >= 5dBm Check U101 & UCP301 9-36 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 VDDA2 GPCS_INN RX_PCS1900_P VDDA2 GPCS_INP VTUNE_GPS VDDA2 VDDA1 GPS_IN RX_GPS PRX_QP WDRXLB PRX_QN WDRXHB1 PRX_IN WDRXHB2 PRX_IP WPRXSE1 DRX_QP VDDA2 DRX_QN WPRXSE2 DRX_IP WPRXSE1_OUT 9-37 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 Flow Chart of Troubleshooting L113 L110 L107 C142 C125 C124 C123 C141 C130 C128 C122 9-38 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 54: Wcdma 2100 Receiver

    Pin 5 : LOW Pin 6 : HIGH F107 Pin 6 Resolder C1010,C1011,L127 >= -75dBm F107 Pin 1 Resolder or change >= -75dBm C1016,C1018,L128 Change MOD101,F107,UCP301 9-39 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 55: Wcdma 2100 Transmitter

    Resolder or change F107,C1017,C1019 >= 15dBm ,C1020 U104 Pin 2 Resolder or change U104 >= 15dBm U101 Pin 59 Resolder or change F106 >= 15dBm Check U101 9-40 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 Pin 5 : LOW Pin 6 : HIGH F105 Pin 6 Resolder C176,C177,L123 >= -75dBm F105 Pin 1 Resolder or change >= -75dBm L124,C187,C188 Change MOD101,F105,UCP301 9-41 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 Resolder or change F105,C183,C198 >= 15dBm U104 Pin 2 Resolder or change >= 15dBm U104 U101 Pin 59 Resolder or change F104 >= 15dBm Check U101 9-42 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 Pin 5 : LOW Pin 6 : HIGH F103 Pin 6 Resolder C152,L116 >= -75dBm F103 Pin 1,8 Resolder or change >= -75dBm C157,C169,L120 Change MOD101,F103,UCP301 9-43 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Resolder or change F102,L122,L118,C174 >= 15dBm U102 Pin 4 Resolder or change F102 >= 15dBm U100 Pin 58 Resolder or change F102 >= 15dBm Check U101 9-44 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 WCDMA_RXM_900 F103 C176 C177 WCDMA_RXM_2100 C143 TRX_WCDMA1900 L115 L123 WCDMA_RXP_2100 C146 F101 F105 L124 WCDMA_RX_1900 3 TX C187 4 5 7 8 9 C188 9-45 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 L110 L107 C142 C125 C1009 C124 C123 C141 C130 C128 C122 C1014 U104 C1012 F106 C1022 C1023 C179 R110 U103 C182 C186 C195 C196 9-46 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 62: Charging Part

    Check the U401's pin #11 Check the U802 is about 5V when charging? Check the U401's pin #4, #10 is "Low" when charging? check the U401 9-47 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 63 Flow Chart of Troubleshooting VUSB_5.0V VOVP_5.0V VCC_3.0V_PDA VBAT C413 R404 CHG_ING_N R407 U401 SETI TA_ISET BATT DETBAT _ABO TP_CHG CHG_EN R409 R410 C461 9-48 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 64 Flow Chart of Troubleshooting 9-30. Radio part Radio does not work check VCC_3.0V_PDA on L201 Resolder or Replace L201 Is it 3.0V? Resolder the U201 9-49 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 65 Flow Chart of Troubleshooting 9-50 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 66: Disassembly And Assembly Instructions

    1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 11-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 67 ) Slowly and cautiously, detach the slide FPCB 1) Beware that you do not damage Slide FPCB 1) Beware that you do not damage Slide FPCB 11-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 68 1) Disassembled the front and slide ass'y 1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 11-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 69 1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 11-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 70 1) Draw out the sub key / TSP FPCB from from the upper slide FPCB connector 1) Beware that you do not damage FPCB 1) Beware that you do not damage FPCB 11-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 71 1) cautiously, detach the LCD from the 1) Disassembled upper ass'y and slide FPCB upper's TSP pannel 1) Be careful not to make scratch and molding damage! 11-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 72 1) Disassembled upper ass'y and TSP 2) Detach ahead of the top of TSP from upper cautiously 1) Be careful not to make scratch and molding damage! 11-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 73 ) Separate the sub key from the upper 1) Disassembled sub keypad and upper Push the hook 1) Be careful not to make scratch and molding damage! 11-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 74 1) Set a upper ass'y and TSP 1) Attach the TSP to the upper Attach Guide : Top of upper 1) Be careful not to make scratch and molding damage! 11-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 75 1) Insert slide FPCB into LCD connector 2) After insert it, Close the connecter cover 2) Beware that you do not damage slide FPCB 11-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 76 1) Set a upper ass'y and lower 2) After insert it, Close the connector cover Insert guide line 2) Beware that you do not damage FPCB 11-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 77 1) Attach the screw cap 2point 1) Be careful not to make scratch and molding damage! 1) Be careful not to make scratch and molding damage! 11-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 78 1) Assemble the upper ass'y and front 1) Set a front ass'y and qwerty keypad Fit the hinge 1) Be careful not to make scratch and molding damage! 11-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 79 1) Be careful not to make scratch and molding damage! 2) Beware that you do not damage slide FPCB 1) Set a front ass'y and PBA 1) Assemble the PBA and front ass'y 11-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 80 1) Set a front ass'y and rear 1) Assemble the front ass'y and rear First assemble point (right) 1) Be careful not to make scratch and molding damage! 11-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 81 1) Be careful not to make scratch and molding damage! 1) Drivers 5 screws on the rear 1) Be careful not to make scratch and molding damage! 11-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 82 www.s-manuals.com...

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Gt-b7620u

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