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Samsung SGH-X620 Service Manual

Gsm telephone
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GSM TELEPHONE
GSM TELEPHONE
SGH-X620
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CONTENTS

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  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-X620 CONTENTS GSM TELEPHONE Specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. August. 2005 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: GH68-08050A BASIC.

  • Page 3: Specification

    5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl Sensit ivit y -102dBm -100dBm - 100dBm TDMA Mux Cell Radius 35Km 1- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung' s authorization...

  • Page 4: Gsm Tx Power Class

    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 1- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung' s authorization...

  • Page 5: Circuit Description

    6.5dBm and fed into Power Amplifier(U102). The PA output power and power ramping are well controlled by Auto Power Control circuit. We use offset PLL below table. 2- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung' s authorization...
  • Page 6 (PWM) and FET to modulate the intensity of a series of LED’ s or to control a DC/DC converter that drives LCD backlight. This phone (SGH-X620) use PWM control to contrast the backlight brightness. - Clock Generato The Clock Generator (CG) generates all clocks for internal and external usa ge.
  • Page 7 PCF50601 to enable PCF50601. Twelve key LEDs are use the "VDD_KEY" as supply voltage. "FLIP" informs the status of folder (open or closed) to the OM6359. This uses the hall effect IC, A321ELH-SAMSUNG. A magnet under main LCD enables A321ELH-SAMSUNG.
  • Page 8 The radio is completely ad j ustment free and does only req u ire a minimum of small and low cost external components. The radio can tune the European-, U S- and Japan FM bands. 2- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used with out Samsung' s authorization...
  • Page 9 3-1. Exploded View QMW02 QVO01 QFR01 QCK01 QAU01 QKP01 QME01 QVK01 QLC01 QMI03 QCA02 QMP01 QCR05 QAN02 QMO01 QCA01 QRE01 QRF03 QCW01 QIF01 QRF01 QCR21 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Exploded Views And Parts List

    　 UNIT-VOLUME KEY;SGH-X620,SSV4018P088 GH59-02113A QVO01 　 MEC-VOLUME KEY;SGH-X620,EU,-,-,-,-,S GH75-07455A QRE01 　 MEC-REAR CASE;SGH-X620,EU,-,-,-,-,SI GH75-06383A 　 QRF03 PMO-EAR JACK COVER;SGH-X620,PC+ELAST GH72-21956A QCW01 MEC-CAMER WINDOW;SGH-X620,EU,-,-,-,- GH75-07587A 　 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 11: Sec Code

    MPR-BOHO VINYL M/WIN;SGH-X620,SP100, GH74-16997A MPR-TAPE INTENNA CAMERA;SGH-X620,TES GH74-16999A MPR-TAPE INSULATE CAMERA;SGH-X620,3M GH74-17225A MPR-TAPE INSULATE VOLUME;SGH-X620,3M GH74-17226A MPR-BOHO VINYL M/WIN A;SGH-X620,ST-5 GH74-17308A MPR-BOHO VINYL CAM WIN A;SGH-X620,ST GH74-17309A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 3-3. Test Jig (GH80-01909A) 3-3-1. RF Test Cable 3-3-2. Test Cable 3-3-3. Serial Cable (GH39-00283A) (GH39-00217A) 3-3-4. Power Supply Cable 3-3-5. DATA CABLE 3-3-6. TA (GH39-00219A) (GH44-00184G) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Electrical Parts List

    C-CER, C HIP 2203-005482 C151 C-CER, C HIP 2203-000679 C152 C-CER, C HIP 2203-000278 C153 C-CER, C HIP 2203-000233 C154 C-CER, C HIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 14 C-CER, C HIP 2203-006257 C315 C-CER, C HIP 2203-005482 C316 C-CER, C HIP 2203-006053 C317 C-CER, C HIP 2203-000425 C318 C-CER, C HIP 2203-006208 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 15 C-CER, C HIP 2203-000679 C424 C-CER, C HIP 2203-000679 C426 C-CER, C HIP 2203-000679 C427 C-CER, C HIP 2203-005061 C428 C-CER, C HIP 2203-000386 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 16 C-CER, C HIP 2203-006399 C529 C-CER, C HIP 2203-005482 C530 C-CER, C HIP 2203-005480 C531 C-CER, C HIP 2203-005482 C532 C-CER, C HIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 17 2703-001259 L405 INDUCTOR-SMD 2703-001259 L501 CORE-RERRITE 3301-001105 L503 INDUCTOR-SMD 2703-001673 L504 INDUCTOR-SMD 2703-002206 L505 INDUCTOR-SMD 3301-001756 L506 INDUCTOR-SMD 3301-001756 L507 INDUCTOR-SMD 3301-001756 LED400 0601-001819 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 18 R127 R-CHIP 2007-007306 R128 R-CHIP 2007-000140 R129 R-CHIP 2007-007314 R130 R-CHIP 2007-007314 R131 R-CHIP 2007-007314 R132 R-CHIP 2007-007314 R133 R-CHIP 2007-000140 R134 R-CHIP 2007-000171 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 19 R411 R-CHIP 2007-002970 R412 R-CHIP 2007-002970 R413 R-CHIP 2007-002970 R414 R-CHIP 2007-002970 R415 R-CHIP 2007-002970 R416 R-CHIP 2007-002796 R417 R-CHIP 2007-000140 R418 R-CHIP 2007-000148 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 20 R-CHIP 2007-008531 R550 R-CHIP 2007-008531 R551 R-CHIP 2007-008531 R552 R-CHIP 2007-000171 TH200 THERMISTOR-NTC 1404-001221 U100 FILTER-ASM 2911-000008 U101 IC-TRANSCEIVER 1205-002327 U102 IC-POWER AMP 1201-002075 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...
  • Page 21 DIODE-TVS 0406-001121 Z D 403 DIODE-TVS 0406-001190 Z D 404 DIODE-TVS 0406-001190 Z D 405 DIODE-TVS 0406-001201 Z D 500 DIODE-Z E NER 0403-001387 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...

  • Page 22: Electrical Parts List

    Electrical Parts List 4-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung' s authorization...

  • Page 23: Block Diagrams

    DCS: Pout= 33.0 dBm Eff = 55% VDD2 (1.35V min 3.45V max , 150mA ) VDD3 (1.35V min 3.45V max , 100mA ) VDD4 (1.35V min 3.45V max , 150mA ) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 (CHARGER IC) chip) HA(1:2) VCC_TX_BURST LD(0:15) (Memory power) INTEL MEMORY Li-Ion Battery LDO2 NOR FLASH (MV3018 power) (Standard) CAMERA 128Mbit DUAL LDO (Camera power) SDRAM 64Mbit SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Pcb Diagrams

    6. PCB Diagrams 6-1. PCB Top Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 26: Pcb Bottom Diagram

    PCB Diagrams 6-2. PCB Bottom Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 27: Flow Chart Of Troubleshooting

    Check for the clock at C142 = 13MHz (related to U101) Y e s Check the initial operation Y e s 7- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 28 AVDD TP300 VDD_KEY VDD3 VDD2 VDD1 V_ISUP VDD_KEY_ON C333 C332 C331 C334 C335 C336 C338 C339 C337 POWER MANAGERMENT UNIT(PMU IC) 7- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 29 (memory CE) OK ? Y e s Check the circuit around LCD & U203 (Short or not solder) Y e s 7- 3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 30 KBIO(5) KBIO5 KBIO(4) KBIO4 KBIO(3) KBIO3 KBIO(2) KBIO2 KBIO(1) KBIO1 KBIO(0) KBIO0 SIMIO KBIO(0:7) SIMCLK IT_PMU AUDIO_SW2 BUSENABLE SYSOL3 GPRS MODEM 7- 4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 31 Flow Chart of Troubleshooting 7- 5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 32: Charging Part

    CHG_ O N signal Y e s Check the U303 pin8 Resolder or replace U303 ¡ Ö 4.2V Y e s 7- 6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 33 ZD301 C340 VBAT U303 2 _PPR IREF 7 3 _CHG IMIN 4 _EN GND 5 CHG_ON C342 R316 R314 CHARGER IC 7- 7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 34: Sim Part

    CN300 pin 2 = " H (SIM _ R ST) " ? Y e s Check the SIM Card Y e s 7- 8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 35 Flow Chart of Troubleshooting 7- 9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 36: Microphone Part

    Resolder the R416 , R417 , R419 , R420 , from U202 to MIC C427 and U505 Y e s Check the MIC Replace the MIC Y e s 7- 10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 37 C425 C424 C426 R417 C427 MIC_P C428 C409 R418 U504 MIC400 C429 U505 MIC_N C432 R419 C433 U508 R420 MIC MODULE 7- 11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 38 Speaker Contact in Check the speaker Contact proper position? Y e s Is Speaker working ? Change the Speaker Y e s 7- 12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 39 VREF C509 C511 C512 C513 C508 AMP_P C514 C515 VBAT C516 C518 C517 R517 R518 C519 R519 C520 LINE_OUT MELODY IC 7- 13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 40: Key Data Input

    Y e s When one of the keys is Replace the PBA pushed, KBIO signal is OK ? Y e s 7- 14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 41: Receiver Part

    Resolder or replace U510 U510 pin 8 , 12 = 1.5 ? Y e s Is Receiver working? Replace the Receiver Y e s 7- 15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 42 Check the U200 F504 pin 2 , 3 , 4 is OK ? Y e s Replace the LCD Module Y e s 7- 16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 43 Flow Chart of Troubleshooting 7- 17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 44: Key Back Light

    Check the PMU related to " V DD _ K E Y " C336 = " H " ? Y e s 7- 18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 45: Camera Part

    R202 = 26MHz ? 26MHz and R202 Y e s is there another problem? Y e s Replace the camera module 7- 19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 46 YD(7) F501 HSYNC VSYNC CAMERA_RESET PCLK C_SCL C_SDA F502 CN501 CAMERA_PD C500 R507 MCLK F503 C502 C503 C504 U511 SEMCO CAMERA(AU60E) 7- 20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 47: Fm Radio Part

    Check the R522 = 2 .8V? Y e s Check U202 pinF4 U503 TP507 = H ? Y e s Replace U503 7- 21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 48 C546 I2CSPIVDD EAR_LM_R I2C_SPI_SEL EARSPK_R C4 VDD EARSPK_L EARSPK_COM A1 SDA R534 TP504 PHONE_IN ID_ENB E2 CBYPASS R536 C540 FM RADIO 7- 22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 49 Flow Chart of Troubleshooting 7- 23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 50: Gsm Receiver

    U101, RF26MHz part, R104 , R105 R129 , R 130 , R 131 , R132 > = 1V Y e s Check U202 7- 24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 51 Flow Chart of Troubleshooting 7- 25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 52: Gsm Transmitter

    R e sol d e r U 1 01 or check Tx c p o (R 1 2 7 ) Chec k U 2 0 2 E N D 7- 26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 53: Dcs Receiver

    Y e s R104 , R105 R129 , R 130 , R 131 , R132 > = 1V Y e s Check U202 7- 27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 54 Flow Chart of Troubleshooting 7- 28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 55 Flow Chart of Troubleshooting 7- 29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 56: Dcs Transmitter

    R e sol d e r U 1 01 or check Tx c p o (R 1 2 7 ) Chec k U 2 0 2 E N D 7- 30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 57 Flow Chart of Troubleshooting 7- 31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 58: Pcs Receiver

    U101, RF 26MHz part, R104 , R105 R129 , R 130 , R 131 , R132 > = 1V Y e s Check U202 7- 32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 59 Flow Chart of Troubleshooting 7- 33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

  • Page 60: Pcs Transmitter

    R e sol d e r U 1 01 or check Tx c p o (R 1 2 7 ) Chec k U 2 0 2 E N D 7- 34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 61 Flow Chart of Troubleshooting 7- 35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...
  • Page 62 Flow Chart of Troubleshooting Transmitter & Receiver 7- 36 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung ' s authorization...

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