Samsung SGH-D720 Service Manual
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Samsung SGH-D720 Service Manual

Samsung SGH-D720 Service Manual

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MITs TELEPHONE
MITs TELEPHONE
SGH-D720
CONTENTS
1.
Specification
2.
Flow Chart of Troubleshooting
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
PCB Diagrams
6.
Block Diagrams

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Summary of Contents for Samsung SGH-D720

  • Page 1 MITs TELEPHONE SGH-D720 MITs TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded Views and Parts List Electrical Parts List PCB Diagrams Block Diagrams...

  • Page 2: Specification

    1. SGH-D720 Specification 1-1. GSM General Specification G S M9 0 0 E GS M 9 0 0 D CS 1 80 0 PC S1 9 0 0 Ph ase 1 Ph as e 2 P ha se 1 F r eq . B an d [M Hz]...

  • Page 3: Gsm Tx Power Class

    SGH-D720 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±...

  • Page 4: Flow Chart Of Troubleshooting

    2. SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1.Baseband 2-1-1. Power ON 'Power On' does not work Check the current consumtion more than Downloader again 100mA Check the Vbat(battery+ O ) Charge the Battery Voltage more than 3.3V Check the pin...
  • Page 5 SGH-D720 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 6 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams VDD_18D VDD_18D VDD_15D VDD_30D L102 C101 VDD_30D R101 VDD_15D VDDSHV1_1 VDDA VDDSHV1_2 C102 VDD_1 VDDSHV2 VDD_SHV2 C103 VDD_2 VDDSHV3 VDD_3 VDDSHV4_1 R102 VDD_4 VDDSHV4_2 VDD1 VDDSHV4_3 VDD2_1 VDDSHV4_4 VDDSHV5_1 R1 VDD2_2 VDD2_3...
  • Page 7 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams VBAT V_IN VRTC C601 C602 R604 TR600 VDD_30D PWR_HOLD U610 D600 JIG_ON R608 RTC_nALARM TR602 ON_SW_SENSE D601 R605 TR603 C608 C609 PWR_ON_AP R609 V_IN VDD_18D VDD_30D U605 VOUT1 U606 VOUT2 9 nBAT_LOW...
  • Page 8 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-2. Initial Initial Failure Check the pin 2 of Check U606 U606 is "High" UCP400 pin B14 (C406) Check the U500 and C516 = 3.0V UCP400 pin C16 (C410, C411) Check the U500 and C517 = 1.8V...
  • Page 9 SGH-D720 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 10 SGH-D720 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 11 SGH-D720 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 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams VCC_1.8A VCCD VRTC VCC_1.8A C410 C411 C406 C407 A(22) VCC_1.8A VCCD R401 VREF TP400 A(23) CLK13M_TR TR_RST R404 D(0:15) A6 XCP_D0 D(0) D(1) XCP_D1 D(2) XCP_D2 D(3) XCP_D3 TRST ARM_TRSTN D(4) XCP_D4...

  • Page 13: Sim Part

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-3. Sim Part Phone can't access SIM card Check the pin 1 of Check the circuit related to SIM500 Voltage = 3V Check the SIM resolder or change connector's SIM500 (SIM500) Check the circuit around SIM500...

  • Page 14: Camera Part

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-4. Camera Part Camera does not work Check Camera FPCB Change Camera Module Check the Voltage Pin 5, 6 of U603 Change U603 (Pin5=1.5V,Pin6=2.8V) Check Pin 18 of CN801 Check R122 (Frequency = 24Mhz)
  • Page 15 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 16: Charging Part

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-5. Charging Part Abnormal charging part Check the pin 21,22 of Check IFC300 IFC300 is Vbat Check the pin 4, 19 of IFC300 Check IFC300 is GND 2-13 SAMSUNG Proprietary-Contents may change without notice...
  • Page 17 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams VDD_USB VBAT C302 VDD_30D VCCD R301 R302 PUEN U304 DXIN USB_DP DXOUT VBUS DYIN DYOUT USB_DM R351 OMAP_TRST R355 OMAP_TMS R353 OMAP_TDI R354 OMAP_TCK R352 OMAP_TDO R315 DEBUG_TXD R317 DEBUG_RXD BP_VF R356...
  • Page 18 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-6 Audio-Microphone Part Microphone does not work Check the assembled Reassemblage microphone status of microphone. Check the reference resolder or change voltage on mic path (R259,C223,R223,C231,R233) C231=1.9V Is microphone ok? Check U500...
  • Page 19 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-7. Audio-Receiver Part receiver does not work Check the connection Resolder and check the board status spk to to board connector CN101/CN800 Check the Change or resolder R236, R239 R236, R239 Is receiver ok?
  • Page 20 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams VDD_30CD VDD_30D C202 C201 UCD203 H6 DBVDD VXCLK BT_BCLK J7 DCVDD C204 C203 VXFS BT_SYNC G9 PVDD IIS_LRCK F9 HPVDD BCLK IIS_SCLK A6 AVDD VXDOUT BT_DOUT C9 HP/SPKRGND ADCDAT IIS_SDI A8 SPKRVDD...
  • Page 21 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 22: Speaker Part

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-8. Speaker Part Speaker does not work Check the connection Resolder and check the board to board connector status spk to CN101 Check the Check UCD203 pin4 of U201 = 'LOW' #4,6,16,18 of...
  • Page 23 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams V_IN U201 C252 NO2 10 CODEC_EAR_L COM2 9 EAR_R HEADSET_GND IN2 8 COM1 EAR_L NC2 7 EAR_SEL CODEC_EAR_L 11 12 13 14 C238 CODEC_EAR_R EAR_R 2-20 SAMSUNG Proprietary-Contents may change without notice...
  • Page 24 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-9. LCD LCD does not Display First, Check the connection of CN103 and LCD Have a some problem of Replace a connector connector (CN103) Check the connection of Display a LCD and the solder-...
  • Page 25 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams LCD_30D C110 CN103 35 NC LED_GND 33 33 LED_GND LED_VCC 31 31 LED_VCC LCD_nRESET LCD_SDI 28 28 LCD_SCLK 26 26 LCD_CS LCD_VSYNC 24 24 LCD_HSYNC 22 22 LCD_VCLK LCD_VDEN 20 20 LCD_R4...
  • Page 26 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams V_IN D101 ZD101 L101 U101 C122 _SHDN LCD_BACKLIGHT RSET C104 R114 C105 2-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 28: Alert Tone

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-10. ALERT TONE Abnormal Alert tone Alert tone-On in "Profile" Menu and then Check the Volume-Bar Check the Solder-Status Resoder or Change the of 2 Speaker. wrong Speaker(s) solder? Play a MP3(Ring...

  • Page 29: Bluetooth Part

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-1-11. Bluetooth Part BT connection disable Check BT function ON Enable BlueTooth Check VDD_30D is Check U605 and change around 3V #9pin of U605(C606) Check 13MHz Clock on Check OSC901 and change C909 Check "High"...
  • Page 30 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 32: Gsm Receiver

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2.RF 2-2-1. GSM Receiver CONTINUOS RX ON RF INPUT : 62CH Cell power : -50dBm CHECK NORMAL CONDITION catch the channel? R702,C709,L708 contact RFS700 F703 CHECK pin13 ≥ -65dBm? resolder or change...

  • Page 33: Dcs Receiver

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2-2. DCS Receiver CONTINUOS RX ON CHECK NORMAL CONDITION RF INPUT : 698CH catch the channel? R702,C709, L708 contact Cell power : -50dBm RFS700 F703 CHECK pin13 ≥ -65dBm? resolder or change...

  • Page 34: Pcs Receiver

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2-3. PCS Receiver CONTINUOS RX ON RF INPUT : 661CH CHECK NORMAL CONDITION catch the channel? Cell power : -50dBm R702, C709, L708 contact RFS700 F703 CHECK pin13 ≥ -65dBm? resolder or change...

  • Page 35: Gsm Transmitter

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2-4. GSM Transmitter CONTINUS TX ON U500 F703 pin 13 MS TX level 19 F703 check & pin 11 : 2.8V about 2~5dBm? CH : 62 change RBW : 100KHz VBW : 100KHz...

  • Page 36: Dcs Transmitter

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2-5. DCS Transmitter CONTINUS TX ON U500 MS TX level 12 F703 pin 13 F703 check & CH : 698 pin 9 : 2.8V about 2~5dBm? change RBW : 100KHz VBW : 100KHz...

  • Page 37: Pcs Transmitter

    SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-2-6. PCS Transmitter CONTINUS TX ON U500 MS TX level 12 F703 pin 13 F703 check & pin 9 : 2.8V about 2~5dBm? CH : 661 change RBW : 100KHz VBW : 100KHz...
  • Page 38 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 SGH-D720 Flow Chart of Troubleshooting and Circuit Diagrams 2-36 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 40: Exploded Views And Parts List

    QVO04 QKP01 QME02 QMP02 QVK01 QMI01 QCR49 QAN02 QME03 QFL02 QME01 QMO01 QHI01 QCA01 QCR06 QFL01 QRF01 QSC04 QIF01 QCR12 QRE01 QGI01 QBA01 QBA00 QCR21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 41: Cellular Phone Parts List

    　 MEC-FRONT COVER;SGH-D720,OPEN,-,-,-, GH75-06719A 　 QCR12 SCREW-MACHINE;PH,+,M1.4,L2.5,ZPC(BLK 6001-001530 　 QMI03 RMO-MIC HOLDER RFONT;SGH-D720,URETHA GH73-04818A QRE01 　 MEC-REAR COVER;SGH-D720,OPEN,-,-,-,- GH75-06720A 　 QGI01 MEC-MMC CARD COVER;SGH-D720,SEC,PC,- GH75-07808A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 42: Sec Code

    MPR-TAPE SUB CONN TOP;SGH-D720,3M 85 GH74-17805A MPR-TAPE MAIN CONN TOP;SGH-D720,3M 8 GH74-17806A MPR-TAPE FPCB ADHESION;SGH-D720,DTD2 GH74-17807A MPR-BOHO VINYL MAIN WIN;SGH-D720,STA GH74-17811A MPR-BOHO VINYL REAR DECO;SGH-D720,ST GH74-18070A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 3-3. Test Jig (GH80-03309A) 3-3-1. RF Cable 3-3-2. Test Cable 3-3-3. Serial Cable (GH39-00397A) (GH39-00414A) 3-3-4. DATA Cable 3-3-5. Power Supply Cable 3-3-6. TC (GH39-00326A) (GH44-00701A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 44: Electrical Parts List

    C-CER,CHIP GH74-15599A MPR-TAPE REAR TOP L 2203-006141 C814 C-CER,CHIP GH74-15600A MPR-TAPE REAR TOP R 2203-006194 C125 C-CER,CHIP GH74-15601A MPR-TAPE REAR MID L 2203-006194 C238 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 Q301 TR-SMALL SIGNAL 2203-006399 C118 C-CER,CHIP 0501-002202 Q302 TR-SMALL SIGNAL 2203-006399 C129 C-CER,CHIP 0504-001113 Q303 TR-DIGITAL 2203-006399 C207 C-CER,CHIP 0504-001113 TR101 TR-DIGITAL 2203-006399 C208 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 1205-002433 U700 IC-TRANSCEIVER 2404-001225 C816 C-TA,CHIP 1205-002624 U900 IC-DATA COMM./GEN. 2404-001225 C819 C-TA,CHIP 1205-002719 UCD203 IC-CODEC 2404-001274 C307 C-TA,CHIP 1209-001219 U402 IC-SENSOR 2404-001274 C601 C-TA,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 BEAD-SMD 2007-000162 R604 R-CHIP 3301-001438 L101 BEAD-SMD 2007-000162 R605 R-CHIP 3301-001438 L401 BEAD-SMD 2007-000162 R608 R-CHIP 3301-001438 L801 BEAD-SMD 2007-000162 R804 R-CHIP 3301-001534 F301 BEAD-SMD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 PCB-FPCB 2007-003010 R803 R-CHIP GH59-02152A UNIT-METAL DOME(SLIDE) 2007-007014 R337 R-CHIP GH75-06712A MEC-SLIDE UPPER 2007-007107 R226 R-CHIP 6001-001530 SCREW-MACHINE 2007-007107 R231 R-CHIP GH71-05298A NDC-LCD BRACKET V2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 2007-008483 R333 R-CHIP GH61-00119A SPRING ETC-HINGE 2007-008483 R342 R-CHIP GH70-00475A IPR-HINGE SHAFT 2007-008483 R401 R-CHIP GH70-00476A IPR-HINGE GUIDE FRAME 2007-008483 R404 R-CHIP GH71-05012A NPR-SHAFT CONNECTOR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 C708 C-CER,CHIP 1203-002368 U101 IC-DC/DC CONVERTER 2203-000233 C711 C-CER,CHIP 1203-003768 U103 IC-POSI.FIXED REG. 2203-000233 C719 C-CER,CHIP 1405-001082 V110 VARISTOR 2203-000233 C724 C-CER,CHIP 1405-001082 V112 VARISTOR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 C-CER,CHIP GH41-00896A PCB-SGHD720 LCD 2203-000995 C809 C-CER,CHIP GH72-22126A PMO-JOG KEY V2 2203-001239 C233 C-CER,CHIP GH74-15262A MPR-LCD INSULATION TAPE 2203-001385 C713 C-CER,CHIP GH74-15263A MPR-SHIELD MAIN CONN SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 2203-005065 C613 C-CER,CHIP GH68-07013A MANUAL-WEEE CARD 2203-005065 C614 C-CER,CHIP GH68-07771A MANUAL-QRG 2203-005065 C615 C-CER,CHIP GH68-07857A MANUAL-INSTALLATION CARD 2203-005288 C715 C-CER,CHIP GH68-70545A MANUAL-WARRANTY 2203-005288 C722 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 53: Pcb Diagrams

    5. SGH-D720 PCB Diagrams 5-1.Main ANT_S ANT_G D201 U201 CN802 FLASH_PAD CN801 RFS700 FLASH_PAD+ U603 F701 F702 U802 F100 SIM500 U601 F804 F806 F805 F803 TP905 UCP100 F900 OSC901 V312 TR101 Q303 OSC100 OSC101 V313 D100 V315 U304 BTC300 ZD301...
  • Page 54 SGH-D720 PCB Diagrams D202 U402 OSC401 TP402 TP401 U500 R250 TP400 TR500 CN800 TP500 U302 F801F802 F304 U610 ZD601 U205 ZD304 TR602 V304 V301 V300 V309 LED301 LED303 TP921 TP910 TP911 TP923 TP912 TP924 TP913 TP925 TP914 TP920 V316 TP919...
  • Page 55 SGH-D720 PCB Diagrams 5-2. LCD LED106 LED108 SOFT1 SOFT2 LED101 LED104 HOME LED103 LED102 LED107 LED105 SEND END_PWR CN200 5- 3...
  • Page 56 SGH-D720 PCB Diagrams SPK_L +_PA D SPK_L_PAD RCV_PAD RCV+_PAD SPK_R +_PAD SPK_R_PAD ZD101 V112 V200 CN101 5- 4...

  • Page 57: Block Diagrams

    6. SGH-D720 Block Diagrams CSP2200B GSM:925MHz~960MHz TRIDENT (GEMINI) Antenna DCS:1805MHz~1880MHz CHANNEL BASE BAND FILTER PCS:1930MHz~1990MHz DSP16000 100KHz 1 / 2 SI4205 ARM7TDMI LMSP54HA-348 SERIAL DATA GSM:890MHz~915MHz INTERFACE DCS:1710MHz~1785MHz PCS:1850MHz~1910MHz SKY77328 OMAP1610 TX VCO TOF1300MPI4KRA ( 13MHz) MultiMedia Processor TXPOWER AUDIO...
  • Page 58 SGH-D720 Block Diagrams TRIDENT II Flash Memory CMOS CAMERA 32.768 1 MEGA PIXEL OMAP161 TR09WQTKE 128M x 32M Add/Dat (FLASH +RAM) Emulation & Debug CC4V-T1 LRS18C8A Key Matrix PDA_WAKEUP MMC-Micro Card PH_WAKEUP/PH_ACTIVE/PDA_ACTIV RF Block E/PH_OFF_RDY 12MHz CX-4025S(12MHz) Add/Dat SIM control 32.768KHz...
  • Page 59 ⓒ 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.: GH68-06923A 2005. 09. Rev.1.0...

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