Page 1: Table Of Contents
GSM TELEPHONE SGH-X670 CONTENTS GSM TELEPHONE Specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting Exploded and assembling View...
Page 2 ⓒ Samsung Electronics Co.,Ltd. April. 2006 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.: GH68-09954A BASIC.
Page 3: Specification
5pcl ~ 19pcl 0pcl ~ 15pcl 0pcl ~ 15pcl Sensit ivit y - 102dBm -102dBm - 100dBm - 100dBm TDMA Mux Cell Radius 35Km 35Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 4: Gsm Tx Power Class
11±5 dBm 8±4dBm 8±4dBm 9±5 dBm 6±4 dBm 6±4 dBm 7±5 dBm 4±4 dBm 4±4 dBm 5±5 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 5 14±3 dBm 9±5 dBm 12±4 dBm 12±4 dBm 7±5 dBm 10±4 dBm 10±4 dBm 5±5 dBm 8±4dBm 8±4dBm 6±4 dBm 6±4 dBm 4±4 dBm 4±4 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 6 Specification SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 7: Circuit Description
LO suppression, quadrature phase error, quadrature amplitude balance and low noise floor specification. Output matching/balun components drive a standard 50 ohms single ended load. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 8 The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) and FET to modulate the intensity of a series of LEDs or to control a DC/DC converter that drives LCD backlight. This phone (SGH-X670) use PWM control to contrast the backlight brightness. - Clock Generator The Clock Generator (CG) generates all clocks for internal and external usage.
Page 9 There is Stereophonic analog output for Headphone. 2-2-9. Memory(UME303) This system uses Samsung's memory, KAP17VG00M. The KAP17VG00M is a Multi Chip Package Memory which combines 256Mbit Synchronous Burst Multi Bank NOR Flash Memory and 256Mbit NAND Flash and 128Mbit Synchronous Burst UtRAM.
Page 10 MHz to 90 MHz) to IF.Preset tuning to receive Japanese TV audio up to 108 MHz, raster 100 kHz. and is connected to PCF5213EL1 of I2C. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 11 QVO01 QFU01 QRF03 QKP01 QLC01 QSP01 QMO01 QCA02 QME01 QCA01 QMI01 QMP01 QVK01 QAN05 QFL01 QCR05 QAN02 QSC01 QCR04 QRE01 QMW02 QIF01 QCR06 QRF01 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 12: Exploded Views And Parts List
　 MEA-LCD MODULE KIT(X670) GH97-05644A QFR01 　 MEC-CASE FRONT GH75-08686A 　 QCK01 PMO-CAMERA KEY GH72-27155A 　 QMI03 RMO-MIC HOLDER GH73-06436A 　 QVO01 PMO-VOLUME KEY GH72-27156A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 13 GH74-22611A MPR-GASKET UPPER GH74-22612A MPR-TAPE CONDUCTION DOME SHEET GH74-22613A MPR-TAPE INSULATION HALL IC GH74-22614A MPR-TAPE INSULATION J TAG GH74-22615A MPR-VINYL BOHO SUB GH74-22719A MEC-HANGER GH75-03673B SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 14 3-3-2. RF Test Cable 3-3-3. Test Cable 3-3-4. Serial Cable (GH39-00283A) (GH39-00337A) (CSA LL64151-A) 3-3-5. Power Supply Cable 3-3-7. TA 3-3-6. DATA CABLE (GH44-00482A) (GH39-00331A] SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 15: Electrical Parts List
2203-000679 C301 C-CER,CHIP 2203-005482 C302 C-CER,CHIP 2203-005482 C303 C-CER,CHIP 2203-000438 C304 C-CER,CHIP 2203-006348 C305 C-CER,CHIP 2203-005482 C306 C-CER,CHIP 2203-000438 C307 C-CER,CHIP 2203-005993 C308 C-CER,CHIP 2203-005482 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 16 2203-005393 C606 C-CER,CHIP 2203-005482 C607 C-CER,CHIP 2203-000278 C612 C-CER,CHIP 2203-005393 C615 C-CER,CHIP 2203-000386 C616 C-CER,CHIP 2203-005344 C617 C-CER,CHIP 2203-000386 C618 C-CER,CHIP 2203-006047 C619 C-CER,CHIP 2203-000254 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 17 DIODE-TVS 0406-001231 D714 DIODE-TVS 0406-001231 D715 DIODE-TVS 0406-001231 EAR600 JACK-PHONE 3722-002082 F101 DUPLEXER-ASM 2911-000018 F102 FILTER-EMI SMD 2901-001254 F103 FILTER-SAW 2904-001553 F700 FILTER-EMI SMD 2901-001286 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 18 2007-000172 R109 R-CHIP 2007-000566 R110 R-CHIP 2007-003001 R111 R-CHIP 2007-000566 R113 R-CHIP 2007-000932 R114 R-CHIP 2007-000932 R115 R-CHIP 2007-000171 R116 R-CHIP 2007-000140 R117 R-CHIP 2007-001288 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 19 2007-000758 R503 R-CHIP 2007-000162 R504 R-CHIP 2007-000148 R505 R-CHIP 2007-007334 R506 R-CHIP 2007-000152 R508 R-CHIP 2007-000170 R509 R-CHIP 2007-000170 R510 R-CHIP 2007-007573 R511 R-CHIP 2007-000137 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 20 IC-CMOS LOGIC 0801-003025 U305 IC ASIC-SGHX670 GH13-00036A U400 IC-POWER SUPERVISOR 1203-003882 U401 IC-POSI.FIXED REG. 1203-003531 U402 IC-DC/DC CONVERTER 1203-003974 U500 DIODE-TVS 0406-001188 U501 FILTER-EMI SMD 2901-001315 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 21 1108-000062 V400 VARISTOR 1405-001082 V401 DIODE-TVS 0406-001231 V500 THERMISTOR-NTC 1404-001221 VR100 VARISTOR 1405-001082 ZD500 DIODE-ZENER 0403-001547 ZD501 DIODE-ZENER 0403-001427 ZD502 DIODE-TVS 0406-001201 ZD601 DIODE-TVS 0406-001104 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 22 Electrical Parts List SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 23: Block Diagrams
5. Block Diagrams 5-1. RF Solution Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 24: Base Band Solution Block Diagram
Block Diagrams 5-2. Base Band Solution Block Diagram 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 the +VDD_GSM_CORE circuit = 1.8V? Check for the clock at C312 Check the clock generation circuit (related to U100) = 26MHz Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 28 AUX_ON C423 C424 32KHz_DIGIT PON_TX +VDD_IO_LOW REF_ON SIMRST C425 SIMCLK R406 MIC_BIAS +VDD_IO_HIGH +VDD_IO_HIGH RSTON IT_PMU U302 C312 R313 SIMIO 26M_CLK R314 R315 OUTY 26M_DIGIT SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 29 Q300 pin 4 (RSTON) ="H" Check the circuit related to reset Is UCP200 R214, R215 Check the UCP200 Check the 16bit data signal & memory CE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 30 EXT1 GPIOA29 GPIOA31 CHG_ON USBCN USBCN USBDM USBDM USB Interface USBDP USBDP +VDD_IO_LOW +VDD_IMAGE +VDD_IO_HIGH +VDD_IO_LOW R307 Q300 R309 LCD_RESET RSTON S_RST S_RST_IMAGE LEVEL SHIFT SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 31 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 32: Charging Part
Resolder or replace U502 Check the circuit related to U502 pin 3 = "L"? AUX_ON signal Check the U502 pin 10 Resolder or replace U502 ≒ 4.2V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 33 C505 R512 BAT 10 CRDL 5.0V ICDL +VBUS 3 _PPR GND 8 AUX_ON USBON 7 _CHG END_OF_CHG USB_CHG_ON IMIN CHG_ON C506 R514 R515 BATTERY CHARGING SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 34: Sim Part
Check SIMCLK Signal on Check the Clock pin3 of SIM400 in a few After SIM card insert, Replace PBA SIM400 pin 2 = "H(SIM_RST)"? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 35 SIM_RST _SIMRSCD SIMEN GPO3 V401 GPO2 C417 C418 C419 C420 C421 GPO1 GND 49 GND 51 NC 53 TP400 AUX_ON 32KHz_DIGIT PON_TX REF_ON SIMRST SIMCLK SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 36: Microphone Part
L600, L601, U600 from UCP200 to MIC Check R605, R625 Check the JACK_IN, JACK_EN signal = ' H' ? Check the MIC Replace the MIC 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 37 C612 L606 EARSPK_L L607 R611 R612 HFR_N L608 EARSPK_R 15 G R625 JACK_IN EAR_ADC C616 L603 C615 C617 D600 D601 ZD601 Typical 3.7V VBAT 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 38 Resolder U602 Check the C705, C706 Check the board to board Check LCD MODULE SPK+, SPK- Connector = Operate Is Speaker working? Change the Speaker 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 39 3 NO2 AMP_N AMP_P C302 C303 C301 4 COM2 SPK_N VBAT C304 C305 R302 R303 C306 C307 R304 R305 EARP_HF R306 C311 MELODY IC 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 40 Flow Chart of Troubleshooting 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 41: Receiver Part
Change the Board to Board Connector SPK +,- PAD = 1.5V? Check the soldering of the Modify the speaker wire soldering spaeaker wire Is Receiver working? Replace the Speaker 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 42: Key Data Input
When one of the keys is Check the D702~D715 Direction. pushed, & Replace Volume Key FPCB or Camera Key FPCB or Replace the PBA KEY_ROW(0,4), KEY_COL(0,4) signal is OK? 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 43 KEY_ROW(3) V_UP R719 R720 KEY_ROW(4) V_DOWN KEY_ROW(3) R716 KEY_COL(1) V_COMMON R717 KEY_COL(0) SIDE_KEY CAMERA_KEY ONKEYN D700 D701 D702 D703 D704 D705 END_KEY VOLUME_KEY CAMERA_KEY 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 44 Change the board to board IC3 pin 2 = H ? Connector Check the IC3 & the related circuit IC3 PIN 5 ≥ VBAT? Replace the LCD Module 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 45 Flow Chart of Troubleshooting 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 46: Key Back Light
R701 R702 R703 R705 R706 R707 R704 R708 R709 R710 R711 LED700 LED701 LED705 LED706 LED702 LED703 LED707 LED708 LED704 LED709 LED710 LED711 KEY_LED 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 47: Camera Part
IC2 Pin 5 = 1.8V? Check U302(pin2, pin4) related to R314 = 26MHz? 26Mhz and R314 Is there another problem? Replace the camera module 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 48 Flow Chart of Troubleshooting 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 49 DVSS SVDD DVSS DVSS DVSS C319 C320 C321 C322 C323 26M_DIGIT LCD_MAIN_CS LCD_SUB_CS L_WR +VDD_IO_HIGH +VDD_IO_HIGH U302 C312 R313 26M_CLK R314 R315 OUTY 26M_DIGIT 7-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 50 "FM Radio" function does not work Insert the Earphone or Change the Check the Insert Earphone Earphone R624 = 2.9V Check the U400 Replace the U603 7-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 51 TP601 DGND VAFL TP602 C626 DGND VAFR DGND RFGND 32KHz_OUT FREQIN VREFDIG R619 INTCON1 XTAL INTCON2 R_INT INTX L605 LOOPSW MPXOUT R621 C628 C627 7-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 52 Flow Chart of Troubleshooting 7-13. BLUETOOTH BLUETOOTH does not work Check the UCP200 R316 = 'H' Replace U301 Replace ANT300 7-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 53 RXD2 UART_TxD TP314 BT_RST RESETB PCMCLK TP315 PCM_IN TP316 X_IN PCM_OUT TP317 PCM_SYNC AIO0 RF_IO PIO0 PIO1 PIO2 PIO3 PIO4 PIO5 PIO8 BLUE TOOTH 7-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 54: Gsm Receiver
Check & Resolder Check U102 U102 pin7,8,9,10 U102, R108 R107 pin28,pin31>=2.7V >= 1V RF26MHz, RF PSU Part Resolder U102 C140, C141 >= 1V Check UCP200 7-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 55: Gsm Transmitter
Check U102 Check & Resolder U102 pin7,8,9,10 pin28,pin31 >=2.7V U102, R108 R107 >= 1V RF26MHz, RF PSU Part Resolder U102 Check UCP200 7-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 56: Dcs Receiver
Check & Resolder Check U102 U102 pin7,8,9,10 U102, R108 R107 pin28,pin31 >=2.7V >= 1V RF26MHz, RF PSU Part Resolder U102 C140, C141 >= 1V Check UCP200 7-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 57: Dcs Transmitter
Check U102 Check & Resolder U102 pin7,8,9,10 pin28,pin31 U102, R108 R107 >= 1V >=2.7V RF26MHz, RF PSU Part Resolder U102 Check UCP200 7-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 58: Pcs Receiver
Check & Resolder Check U102 U102 pin7,8,9,10 U102, R108 R107 pin28,pin31 >=2.7V >= 1V RF26MHz, RF PSU Part Resolder U102 C140, C141 >= 1V Check UCP200 7-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 59: Pcs Transmitter
Check U102 U102 pin7,8,9,10 Check & Resolder pin28,pin31 >= 1V U102, R108 R107 >=2.7V RF26MHz, RF PSU Part Resolder U102 Check UCP200 7-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 60 Flow Chart of Troubleshooting 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 7-36 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 63: Exploded And Assembling View
Take out the Ear Cover and separate the Separate the Folder Ass'y and the Rear. LCD Connector. Separate the PBA and the Folder Ass'y. Remove the Tape. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 64 Detach the Folder Screw Cap and loosen the Disassemble the Folder from the bottom. Folder Screw. Separate the Folder Lower and Folder Upper. Separate the Folder Lower and the LCD Ass'y. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 65: Assembling Procedure
Resolder the Mic. and the Conducted Tape(1 POINT). PAPER TAPE Bond the Motor and Speaker after Attach the Paper Tape. resoldering with attention to polarity. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 66 Attach the Insulated Tape and Lower. Sponge on the LCD Ass'y. Attach the Sub Window on the Folder Assemble the Folder from the top. Upper. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 67 Assemble the Folder and the Front. Insert the Keypad. Attach the Tape to prevent indraft of Assemble the Intenna on the Rear dust. and tighten the Screw. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
Page 68 Exploded and assembling View Insert the PBA and join the LCD Assemble the Folder Ass'y and the Connector. Rear. Tighten the Rear Screws. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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