Samsung SGH-X820 Service Manual
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Samsung SGH-X820 Service Manual

Samsung SGH-X820 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
SGH-X820
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  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-X820 GSM TELEPHONE CONTENTS Safety Precautions Specification Product Function Array course control Exploded View and Parts List Disassembly and Assembly instructions MAIN Electrical Parts List Block Diagrams PCB Diagrams 10. Flow Chart of Troubleshooting 11. Reference data...

  • Page 2: Safety Precautions

    C o n t e n t s 1. Safety Precautions 1-1. Repair Precaution ................1-1 1-2. ESD(Electrostatically Sensitive Devices) Precaution ......1-2 2. Specification 2-1. GSM General Specification ..............2-1 2-2. GSM Tx Power Class ..............2-2 3. Product Function 3-1. Main Function ................3-1 4.
  • Page 3 C o n t e n t s 10. Flow Chart of Troubleshooting 10-1. Baseband 10-1-1. Power ON ................10-1 10-1-2. Initial ..................10-4 10-1-3. Sim Part ................10-6 10-1-4. Charging Part ................10-8 10-1-5. Microphone Part ..............10-9 10-1-6. Speaker Part ................10-11 10-1-7. LCD ..................10-13 10-1-8.

  • Page 4: Repair Precaution

    ● 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 5: Esd(Electrostatically Sensitive Devices) Precaution

    ● 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 6: Gsm General Specification

    2. Specification 2-1. GSM General Specification GSM900 E G S M 9 00 DCS1800 PC S1 90 0 Ph ase 1 Ph ase 2 Ph ase 1 Freq. Band[MHz] 890~915 880~915 1710~1785 1850~1910 Uplink/Downlink 935~960 925~960 1805~1880 1930~1990 0~124 & ARFCN range 1~124 512~885...

  • Page 7: Gsm Tx Power Class

    Speclflcation 2-2. 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±2 dBm 26±3 dBm 26±3 dBm 27±2 dBm 24±3 dBm 24±3 dBm 25±2 dBm...

  • Page 8: Main Function

    -Camera and camcorder -Image editor -Music player -Bluetooth -Photo printing -Phone to TV -Image editor -File viewer -Web browser -Java -Offline mode -Multimedia Message Service (MMS) -E-mail SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Array Course Control

    4. Array course control Test Jig (GH80-03307A) Test Cable (GH39-00478A) RF Test Cable (GH39-00182A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 10: Software Downloading

    • Three binary files for downloading X820. – X820XXYY.s3 : Main source code binary. 4-2. Pre-requsite for Downloading • Downloader Program(OptiFlash.exe) • X820 Mobile Phone • Data Cable • Binary files SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 11: S/W Downloader Program

    2. Select the “Options” -> “Settings” -> “Generic” -> “Specify hardware platform”. Choose hardware platform for the downloader file setting. Set the everything else as the default values which are shown below SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 However, OptiFlash will use a slower speed if either the PC’s or the phone’s serial hardware is incapable of handling the selected speed SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 Make sure that not to change the reserved memory regions. In case of X820 the reserved regions are -0x20000010 – 0x2000ffff -0x21ff0000– 0x21ff1fff -0x29000000 – 0x30000000 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 7. After finishing downloading, Certain memory resets should be done to guarantee the normal performance. 8. 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 15: Cellular Phone Exploded View

    5-1. Cellular phone Exploded View QKP01 QME01 QMI03 QFR01 QCK01 QVO01 QMI07 QLC01 QCR05 QMP01 QSP02 QCA02 QAN02 QVK01 QCA01 QRF03 QRE01 QCR06 QSC01 QSC02 QBA01 QCW01 QRF01 QBA00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 16: Cellular Phone Part List

    MEC-VOLUME KEY GH75-09581A QFR01 　 MEC-CASE FRONT GH75-09579A 　 QMI03 RMO-COVER MIC HOLDER GH73-06452A QRE01 　 MEC-CASE REAR GH75-09580A 　 QRF03 PMO-COVER EAR JACK GH72-29073A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 GH74-22928A MPR-CUSHION INDUCTOR-3 GH74-23850A MPR-VINYL BOHO LCD GH74-24623A MPR-VINYL BOHO REAR-2 GH74-25033A MPR-VINYL BOHO EAR DECO GH74-25298A AS-LCD WINDOW GH81-03179A AS-TAPEKEYPAD GH81-04637A AS-LCD TAPE GH81-04638A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 18: Disassembly

    2) Handle the HOOK with care, and check No 2) Handle the HOOK with care, and check No bending the board and front/rear cover bending the board and front/rear cover SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 2) Separate CAMERA MODULE 1) LCD glass and LDI are easy to break. ※ caution Separate LCD module slowly with care 1) Camera FPCB is easy to break SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 20: Assembly

    3) Press the KEYPAD not to be detached ※ caution ※ caution 1) Check the MIC FPCB is OK 1) Check the KEY PAD is OK SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 PCB guide and FPCB at the same time ※ caution 1) SPK FPCB has to be inserted to the SILK 1)Solder INTENNA pad. line 2) Put the blue tape on the connector SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 Bosses and the Holders 1) Handle the MIC F-PCB with care. This ※ caution FPCB tears easily. 1) Check everything is proper place SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 1) Tighten the REAR SCREWS (4 POINT) 1) Check there is no gap between Front and 2) Put the SCREW CAPS rear case 3) PUT the RF COVER SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 24: Lcd Kit Disassembly

    Disassembly and Assembly instructions 6-3. LCD KIT Disassembly 1) Separate LCD and Main window as the picture ※ caution 1) Handle with care. No scratch 1) DONE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Lcd Kit Assembly

    ※ caution ※ caution 1) Handle with care LCD CONN itself and dust. 1) Handle with care LCD CONN itself and dust. 1) DONE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 26: Main Electrical Parts List

    C-CER,CHIP 2203-006423 C201 C-CER,CHIP 2203-006423 C202 C-CER,CHIP 2203-006194 C203 C-CER,CHIP 2203-006423 C204 C-CER,CHIP 2203-006194 C205 C-CER,CHIP 2203-006423 C206 C-CER,CHIP 2203-006194 C207 C-CER,CHIP 2203-006194 C208 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 C-CER,CHIP 2203-006423 C327 C-CER,CHIP 2203-002709 C331 C-CER,CHIP 2203-006838 C332 C-CER,CHIP 2203-006423 C333 C-CER,CHIP 2203-006562 C334 C-CER,CHIP 2203-006562 C335 C-CER,CHIP 2203-006257 C336 C-CER,CHIP 2203-006423 C337 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 C-CER,CHIP 2203-005682 C378 C-CER,CHIP 2203-005682 C379 C-CER,CHIP 2203-005682 C380 C-CER,CHIP 2203-005482 C384 C-CER,CHIP 2203-006642 C388 C-CER,CHIP 2203-006642 C389 C-CER,CHIP 2203-006194 C391 C-CER,CHIP 2203-006562 C394 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 C-CER,CHIP 2203-006257 C455 C-CER,CHIP 2203-005719 C459 C-CER,CHIP 2203-002709 C460 C-CER,CHIP 2203-005481 C461 C-CER,CHIP 2203-000812 C462 C-CER,CHIP 2203-005719 C463 C-CER,CHIP 2203-005481 C464 C-CER,CHIP 2203-000812 C465 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 DIODE-SWITCHING 0404-001262 D302 DIODE-SCHOTTKY 3710-002363 IFC402 SOCKET-INTERFACE 2703-002910 L101 INDUCTOR-SMD 2703-002200 L102 INDUCTOR-SMD 2703-002793 L103 INDUCTOR-SMD 2703-002198 L107 INDUCTOR-SMD 2703-002597 L108 INDUCTOR-SMD 2703-002597 L109 INDUCTOR-SMD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 R-CHIP 2007-009314 R118 R-CHIP 2007-008483 R124 R-CHIP 2007-008542 R126 R-CHIP 2007-008045 R130 R-CHIP 2007-008045 R131 R-CHIP 2007-008542 R134 R-CHIP 2007-008516 R136 R-CHIP 2007-008542 R142 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 R-CHIP 2007-008483 R331 R-CHIP 2007-008055 R332 R-CHIP 2007-000171 R409 R-CHIP 2007-000171 R410 R-CHIP 2007-008588 R412 R-CHIP 2007-008588 R413 R-CHIP 2007-009084 R415 R-CHIP 2007-008419 R418 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 R-CHIP 2007-008588 R473 R-CHIP 2007-007489 R474 R-CHIP 2007-007590 R475 R-CHIP 2007-007014 R476 R-CHIP 2007-000173 R479 R-CHIP 2007-000173 R480 R-CHIP 2007-008542 R481 R-CHIP 2007-000171 R482 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 U401 IC-CODEC 1201-002233 U402 IC-AUDIO AMP 1203-003523 U403 IC-POSI.FIXED REG. 1201-002147 U404 IC-VIDEO AMP 1001-001231 U405 IC-ANALOG SWITCH 1001-001410 U406 IC-ANALOG SWITCH 1204-002138 U407 IC-MELODY SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 0406-001223 ZD309 DIODE-TVS 0406-001223 ZD310 DIODE-TVS 0403-001547 ZD402 DIODE-ZENER 0403-001411 ZD406 DIODE-ZENER 0406-001190 ZD407 DIODE-TVS 0406-001190 ZD408 DIODE-TVS 0406-001254 ZD409 DIODE-TVS 0406-001254 ZD410 DIODE-TVS 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 36: Block Diagrams

    V R F V P A C V R F 7 7 3 3 1 S K Y V P A C P A M SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Block Diagrams MAIN SPEAKER EAR PHONE SPK- MIC- MIC+ SPK+ BLUETOOTH HEADSET SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 38: Pcb Diagrams

    9. PCB Diagrams CN401 U104 TCX101 D301 CN301 ANT101 ANT103 ZD304 CON101 ZD408 PAM101 ZD410 U401 ZD409 TA448 ZD406 V303 TP303 V302 TP304 TP307 U403 U312 TP309 V304 V305 TP308 U309 U202 U305 CN305 V418 OSC200 TA457 SIM301 CN303 V401 BTC400 9- 1...
  • Page 39 PCB Diagrams TP205 TP206 TP204 TP202 TP201 TP203 TP200 U201 U407 U303 U308 U105 TA456 9- 2...

  • Page 40: Power On

    10. Flow Chart of Troubleshooting 10-1 BASEBAND 10-1-1. Power ON 'Power On' does not work Check the current Download again consumption more than 100mA Check the VBAT Charge the Battery more than 3.3V ① Check the VLDO7_1.8V Check U300 C312 of U300 is more than 1.8V ②...
  • Page 41 Flow Chart of Troubleshooting 10-2...
  • Page 42 Flow Chart of Troubleshooting C309 VBAT VDD34 VDD12 D301 UP_CLK SIMCLK UP_RST SIMRST UP_IO P10 C338 SIMDATA SIM_IO SIM_IO VRTC_1.5V SIM_RST SIM_RST SIM_CLK SIM_CLK VIB_DRV VSIM VSIM VRTC LED2_DRV VCCD_1.8V_PSC VCCA_2.9V VRF_2.9V VCCD_2.9V VLDO1_1.5V LED1_DRV RING_DRV F13 VIB_DRV VLDO_7 R300 VLDO_6 VL5S_B C9 VCCB_2.9V...

  • Page 43: Initial

    Flow Chart of Troubleshooting 10-1-2. Initial Initial Failure ① Check VCCD, VCCD_1.8V of U300 Check U300 "High" when the phone is boot on` ② Check the HP_CORE_1.6V of Check U305 U305 is "High" ③ LCD display is O.K? Check CN305 and LCD part Sound is O.K? Check audio part...
  • Page 44 Flow Chart of Troubleshooting VLCD_3.3V VCCD_2.9V CN305 LCD_D(4) LCD_D(13) LCD_D(3) LCD_D(2) LCD_D(14) LCD_D(1) 10 10 LCD_D(15) LCD_D(0) 13 13 14 14 LED+_12V LCD_D(12) 17 17 18 18 LCD_D(11) MLCD_CS LCD_D(10) L_ADS 21 21 22 22 LCD_D(9) LCD_WEN LCD_D(8) 26 26 LCD_D(7) 27 27 LCD_D(6)

  • Page 45: Sim Part

    Flow Chart of Troubleshooting 10-1-3. Sim Part Phone can't access SIM card ① Check the pin 1 of Check the circuit related to SIM301 U300 Voltage = 3V ② Check the SIM connector's resolder or change (SIM301) SIM301 connector's to SIM card ③...
  • Page 46 Flow Chart of Troubleshooting SIM301 VSIM SIM_RST SIM_CLK SIM_IO C304 11 11 C305 C306 C307 C308 10-7...

  • Page 47: Charging Part

    Flow Chart of Troubleshooting 10-1-4. Charging Part Abnormal charging part ① Battery Contact at Battery Check BTC400 BTC400? ② Charger input of Check the IFC402 IFC402 ? VCCD_1.8V USB_5V VEXT VBAT ZD407 IFC402 R457 R420 EAR_MICP EAR_MICN EAR_R EAR_L EAR_SWITCH JACK_IN EAR_CHECK TV_OR_SDS...

  • Page 48: Microphone Part

    Flow Chart of Troubleshooting 10-1-5. Microphone Part Microphone does not work Check the assembled status of Reassemblage microphone microphone. Check the reference resolder or change voltage on mic path (R442, R442=2.4V TA456,C455,R445) Is microphone ok? Check U300 10-9...
  • Page 49 Flow Chart of Troubleshooting VCCA_2.9V RIGHT_LOP RIGHT_LOM SPK_P LEFT_LOP SPK_N LEFT_LOM R442 CSP_MICP MONO_LOP CSP_MICN MONO_LOM MICDET U408 R309 MICBIAS YMU_EAR_R TA456 C455 R445 MIC3R YMU_EAR_L MIC3L MFP3 C467 MFP2 MIC+ MFP1 C475 MFP0 C468 LINE2RP C335 MIC- LINE2RM R409 AOUTBP LINE2LP R410...

  • Page 50: Speaker Part

    Flow Chart of Troubleshooting 10-1-6. Speaker Part Speaker does not work Is the terminal of check the specker connector Speaker OK? CN401 ① Change or resolder Check the CN401 pin4, 5 o f CN4 01 "HIGH" ② Check the circuit around U406 Change or resolder around U406...
  • Page 51 Flow Chart of Troubleshooting VBAT L404 L405 VIB_DRV L406 SPK_P_CON L407 SPK_N_CON C499 CN401 VBAT SPK_N_CON SPK_N_OUT R449 AOUTAN U406 SPK_P_OUT R443 R468 AOUTAP AMP_EN SPK_P_CON C489 C454 C463 C459 10-12...
  • Page 52 Flow Chart of Troubleshooting 10-1-7. LCD LCD does not Display First, Check the connection of CN305 and LCD ① Have a some problem of Replace a connector (CN305) connector (CN305) ② Check of U201 Backlight does work (pin 7) ③ check the data line from Check U401...
  • Page 53 Flow Chart of Troubleshooting VCAM_2.8V VCCD_2.9V C404 C403 C400 TV_EN VCAM_EN VCAM_2.8V R413 R412 VDDS TRST MCLK C_MSCK R417 HREF C_HS VSYNC C427 R481 C_VS CAM_RESET C_RST RTCK VCCD_1.8V HP_CORE_1.6V PCLK C_PCLK CAM_SDA C_SDA L400 CAM_SCL C_SCK STROBE CAM_D(0) CAM_D(0:7) C_D_0 C_PWDN CAM_D(1)
  • Page 54 Flow Chart of Troubleshooting VBAT L201 U201 R207 2 GND LED 7 LED+_12V R206 CTRL LCD_BACKLIGHT_EN 4 GND VIN 5 R210 C216 C215 C214 10-15...

  • Page 55: Camera

    Flow Chart of Troubleshooting 10-1-8. Camera Camera does not work Check the connection of SLC103 and CAMERA Module Check camera FPCB Change camera module and check of CN301 and CN301 Check the voltage pin 9,10 of U311 Change U311 (Pin 9 : 2.8V Pin 10 :1.5V) Check pin23 of CN301 Check...
  • Page 56 Flow Chart of Troubleshooting VBAT VCAM_1.5V VCAM_2.8V VCAM_2.8V_A C398 L301 U311 1 VIN VOUT1 10 R329 VOUT2 VCAM_EN R330 3 BYP POR 8 CAM_RESET 5 SET GND 6 R331 1112 1314 15 C342 C390 C339 C341 C391 C340 VCAM_2.8V VCAM_1.5V VCAM_2.8V_A CN301 CAM_D(0)

  • Page 57: Gsm Receiver

    Flow Chart of Troubleshooting 10-2. RF 10-2-1. GSM Receiver CONTINUOS RX ON RF INPUT : 62CH Cell power : -50dBm CHECK NORMAL CONDITION c atch the channel ? C101 CON101 U102 CHECK pin6 ≥ -65dBm? resolder or change U102 U102 CHECK pin12,13 ≥...

  • Page 58: Dcs Receiver

    Flow Chart of Troubleshooting 10-2-2. DCS Receiver CONTINUOS RX ON RF INPUT : 698CH Cell power : -50dBm CHECK NORMAL CONDITION c atch the channel? C101 contact CON101 U102 CHECK pin6 ≥ -65dBm? resolder or change U102 CHECK U102 pin10,11 ≥ - resolder or change C132,L110,L111 U100 CHECK...

  • Page 59: Pcs Receiver

    Flow Chart of Troubleshooting 10-2-3. PCS Receiver CONTINUOS RX ON RF INPUT : 698CH Cell power : -50dBm CHECK NORMAL CONDITION c atch the channel? C101 contact CON101 U102 CHECK pin6 ≥ -65dBm? resolder or change U102 U102 CHECK pin8,9 ≥ -65dBm? resolder or change U100 CHECK C134,L112,L113...
  • Page 60 Flow Chart of Troubleshooting 10-21...
  • Page 61 Flow Chart of Troubleshooting 10-22...

  • Page 62: Gsm Transmitter

    Flow Chart of Troubleshooting 10-2-4. GSM Transmitter U102 p in 6 U300 CONTINUS TX ON U102 a bout check & CONDITION pin 4 : 2.8V 2~5dBm? change MS TX level 19 CH : 62 PAM101 pin7 RBW : 100KHz 3~6dBm? U102, C101 VBW : 100KHz check &...

  • Page 63: Dcs Transmitter

    Flow Chart of Troubleshooting 10-2-5. DCS Transmitter U102 p in 6 U300 CONTINUS TX ON U102 a bout check & pin 2 : 2.8V CONDITION 2~3dBm? change MS TX level 12 CH : 698 PAM101 pin14 RBW : 100KHz 3~4dBm? U102,C101 check &...

  • Page 64: Pcs Transmitter

    Flow Chart of Troubleshooting 10-2-6. PCS Transmitter U102 p in 6 U300 CONTINUS TX ON U102 a bout check & CONDITION pin 2 : 2.8V 2~3dBm? change MS TX level 12 CH : 660 PAM101 pin2 RBW : 100KHz 3~4dBm? U102,C101 VBW : 100KHz check &...
  • Page 65 Flow Chart of Troubleshooting 10-26...

  • Page 66: Bluetooth Part

    Flow Chart of Troubleshooting 10-2-7. Bluetooth Part BT connection disable Check BT function ON Enable BT function Check the voltage of Check U105 and change C150 is around 1.8V Check 32KHz Clock on Check U101 or U101 Initial part Check the Resolder or change assembled status of AN102...
  • Page 67 Flow Chart of Troubleshooting 10-28...
  • Page 68 Flow Chart of Troubleshooting VBAT VBT_1.8V U105 1 STBY VBT_EN VOUT 4 C149 R124 C150 ANT102 VBT_1.8V PCM_OUT PCM_OUT PIO_0 PCM_SYNC PCM_SYNC PIO_1 PCM_IN PCM_IN PIO_2 PCM_CLK PCM_CLK PIO_3 U101 PIO_4 UART_RTS PIO_5 BT_TXD UART_RX PIO_6 BT_RXD UART_TX PIO_7 UART_CTS VDD_REG RESETB VDD_IO...

  • Page 69: 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...
  • Page 70 ⓒ 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.: GH68-10799A 2006. 06. Rev.1.0...

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