Samsung SPH-A940 Service Manual
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Samsung SPH-A940 Service Manual

Samsung SPH-A940 Service Manual

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CDMA TELEPHONE
CDMA TELEPHONE
SPH-A940
CONTENTS
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  • Page 1: Table Of Contents

    CDMA TELEPHONE SPH-A940 CONTENTS CDMA TELEPHONE General Introduction Circuit Description Installation NAM Programming Product Support Tools Test Procedure Flow Chart of Troubleshooting Exploded Views and Parts List Block Diagram Electrical Parts List PCB Diagrams...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. November. 2005 Printed in Korea. This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Code No.: GH68-08774A International and/or domestic law. BASIC.

  • Page 3: General Introduction

    For CDMA/PCS mode, The SPH-A940 supports Release A of the CDMA2000 1X standard. The SPH-A940 is the first 2 mega pixel camera phone with 2x optical zoom and auto focus of Samsung for North America that works on North American CDMA networks.
  • Page 4 General Introduction SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Circuit Description

    - Charging Time : Standard (1100mAh) 2.5 ~ 3 Hrs , Extended (1700mAh) 3.5 ~ 4 Hrs - Charging Mode : ① Charging ② Completion SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 : -40°C to +85°C) Universal Serial Bus Interface SPH-A940 supports a Universal Serial Bus(USB) interface by the MSM6500, to provide an efficient interconnection between the mobile phone and a Personal Computer(PC). The MSM6500's USB interface is designed to comply with the Universal Serial Bus Specification, Revision 2.0.
  • Page 7 In addition, CCP can download the compressed image to either store the original RGB data or transfer the image to the LCD. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 8: Audio Part

    The voice signal from the microphone is filtered and amplified by the internal OP-AMP and is converted to PCM data by the internal CODEC in the MSM. And then these signals are applied to the the MSM(U101)'s internal vocoder. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 2.5W RMS output directly from the VBATT supply. It is a high efficiency audio amplifier for mobile applications. The gain of amplifier in SPH-A940 set to 4(V/V) . The output generated in SAPA1D2 is intended to drive two speakers.
  • Page 10 Receiver band. Power Amp Power amplifier module(U404:ACPM-7833-DC1) amplifiers signal to be sent to the base station through the antenna. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 The VCO's output frequency is changed by control voltage. The PLL in S1M8690X generates this control signal and this signal is changed into DC control voltage by R-C Loop filter. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 Receiver band. It also matches LNA input in receiving part and PAM(U403:ACPM-7813) output in transmitting part with the Intenna. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 13 The TX IF AGC amp in S1M8690X controls gain of AGC to deliver power level to be needed at Driver amp. Its control voltage varies from 0.2V to 2.5V. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 RF Band Pass Filter(Rx RF SAW Filter) The RF BPF(F303:DG75BS1) passes only a specific frequency(1575.42±1MHz) from the signal received from the satellite. The bandwidth is 2 MHz. 2-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 15: Installation

    Specifications using DTC (Desktop Charger) Standard Battery Extended Battery Battery Type (Li-ion, 1000mAh) (Li-ion, 1700mAh) Charging < 5 hours < 5 hours GH43-02160A GH43-02161A SEC Code SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 Installation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 17: Nam Programming

    Enter the number modify the international mobile station True IMSI MCC identity 3. Network Setting -5 True IMSI NMSID Enter the number True IMSI NMSID 000000006034 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 Home SID Reg – home system ID Home Sys Reg 3. Network Setting -13 Forgn SID Reg Foreign SID Reg – foreign system ID Forgn SID Reg SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 To modify the index, Slot Cycle Index Enter the number select Edit 6. Service Programming Code Service Programming Enter the number Code 000000 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 NAM Programming SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 21: Product Support Tools

    IMPORTANT INFORMATION Purpose The Product Support Tool (PST) offers you the ability to interface with the SAMSUNG mobile phone using a PC. With this tool you can program the phones network system requirements and functionality, data, and download software upgrades. This document supports SamsungPST(Samsung Product Support Tool).

  • Page 22: Getting Started

    Normal Download. 1. Connect PC and SPH-A940 with usb cable 2. Check com port of SAMSUNG CDMA Modem. To check on Com port, first you go to my computer->property->Hardware->Device Manager ->Modem->Samsung USB Modem. Then go to property of Samsung USB Modem, and then click on Modem tab. You may see the port number, which is assigned for Samsung USB Modem.
  • Page 23 Product Support Tools 4. Run Samsung PST. 5. Change PST's comport setting ( Setup COM Setting ) same as com port of 'SAMSUNG cdma modem' 6. Select SPH-A940 and then click SW(Software Download) tab. 7. Select 'Emergency" in software download option.
  • Page 24 Backup Items 1. Select Item to backup in 'Item option' list. 2. Select 'backup' in 'Backup or Restore' list. 3. Click "Start Backup of Restore" icon. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 25: Test Procedure

    ● Test Jig ● Test Cable ● CDMA Mobile Station Test Set HP8285A, HP8960, CMD-80, etc ● Spectrum Analyzer(include CDMA Test Mode) HP8596E, 6-2 Configuration of Test SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 RF CABLE (1.4dB Loss for CDMA, 2.1dB Loss for PCS, 1.8dB Loss for GPS) BNC CONNECTOR (RF) DATA CABLE Plug Connect to SPH-A940 Dsub 25PIN CONNECTOR (DATA) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 6-3-3 Dsub 25 PIN CONNECTOR PIN DESCRIPTION (TEST CABLE 1, BACK SIDE) Dsub CONN. Dsub CONN. DATA DESCRIPTION DATA DESCRIPTION PIN NO. PIN NO. 24,25 (SHORT) VBATT VBATT 5,6 (SHORT) HP_PWR DP_RX_DATA RX_AUDIO DP_TX_DATA TX_AUDIO SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 0 ≤ N ≤ 1199 F=0.05 × N + 1850.00 FREQUENCY F ; FREQUENCY 0 ≤ N ≤ 1199 F=0.05 × N + 1930.00 FREQUENCY (PCS) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 C. The command "0 2 2" is mode and channel change "2 0 3 6 3" Channel number Mode:CDMA Push the [OK] key to save. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 G. "0 1 1" : Carrier_On. H. "0 1 4" : CDATA. I. "0 9 2" : PA_RANGE_1. J. "0 1 9" : Adjust RF power level. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 : Gated Power - at least 20dB Gated Time - Rising Time : below 6 ㎲ Falling Time : below 6 ㎲ Burst Time : below 1.25 ㎳ SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 : Gated Power - at least 20dB Gated Time - Rising Time : below 6 ㎲ Falling Time : below 6 ㎲ Burst Time : below 1.247 ㎳ SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 33: Flow Chart Of Troubleshooting

    U203 Check CON203 and it's pin41=high? neighboring circuits Check C219 = C220,C222,C223,C224,C225,C226 2.7V? and U203's neighboring circuits C172 Check OSC302,U107 and it's 19.2MHz? neighboring circuits SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 V_MOTOR (3.1V) USB_VPO OUT9 V_LED (3.3V) USB_VMO C218 19 18 D202 C229 C230 C231 C232 V_BUS VPULL U204 C240 DXIN DXOUT VBUS VPULL DYIN DYOUT SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 V503's pin6 neighboring circuits Change LCD Check HEA501, F500, F501 LCD Display Replace HEA501, F502,F503,and F500, F501 F502,F503 and it's Short=? it's neighboring circuits Change LCD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 R eplace receiver Check CN201 Check mic path from pin20, 22 MIC is OK? CN201 to U101 and it's signal on? neighboring circuits. Check KEY FPCB SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 (2.7V) V_LED VBATT L203 CN201 SCAN6 KEYSENSE0 SCAN5 KEYSENSE1 SCAN4 KEYSENSE2 SCAN3 KEYSENSE3 SCAN2 SCAN1 HALL_FOLDER ON_SW MIC- SCAN7 M_MIC SCAN0 V208 V207 V205 V206 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 VREFL VREFR R238 L204 SPK_L+ SPK_R+ VOPL VOPR SPK_R- VOML VOMR L205 SPK_L- L207 C253 C254 C255 C256 L208 S3.6 C258 C257 C259 C260 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 Flow Chart of Troubleshooting 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Flow Chart of Troubleshooting 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 DVGA value Adjust DVGA by Call OK? Check OK? program S1M8690X(U400) Tx Path Check Adjust TX by Check OK? program Check RFR6000(U302), FER OK? MSM6500(U101) 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 46: Gps Mode

    3. OSC302 Check : 19.2MHz START GPS U405 Logic Check pin1 pin6 pin9 GPS RF GPS L Path Check F303 Check GPS_NV_ITEM Adjust by program Check OK? 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 Flow Chart of Troubleshooting 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 Flow Chart of Troubleshooting 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 7-3 Tx 7-3-1 CDMA/PCS mode CDMA/PCS Abnormal Transmitter section Check S1M8690X(U400) Check Check P_OUTB(C414) S1M8690X(U400) C_OUT(C430) pin30(R403) RF OUT Level Check PCS:PA(U404) CDMA:PA(U403) Output Level 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 Flow Chart of Troubleshooting 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 Flow Chart of Troubleshooting 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 Flow Chart of Troubleshooting 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 & Optical and U502 HIOVDD(R522), Zoom is OK? R eplace Camera module Check Camera V_FLASH_5V Check U211 Flash is OK? (C210) R eplace Flash FPCB 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 D_CAM(6) D_CAM(7) 22 22 21 21 MV_CAM_SCL 26 26 R542 27 27 HREF R543 30 30 PCLK R544 VSYNC MV_CAM_SDA R540 M_CAM_SDA R541 M_CAM_SCL 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 V_FLASH_5V C211 S3.6 C210 L200 C275 U211 ILED 5 FLASH- 7 EN1 CAM_FLASH_ON 8 EN2 GND 13 FLASH_PULSE R202 R203 C200 C209 R205 R204 7-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 Flow Chart of Troubleshooting 7-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 Check PMIC 2.7DV_BT (C341) OK? U203 (L319) R eplace OSC303 Check Check PMIC BT module 2.7DV_BT, U203 (pin 25) OK? 1.8DV_BT(L316) R eplace U306 7-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 ASAP_RX 30 AUX_PCM_DIN_BT BLUE_CLK_EN BT_CLK_EN BT_RESET RESET_N 1 GND BLUE_HOST_WAKE 9 HOST_WAKE BLUE_WAKE BT_WAKE REG_CTRL 24 GND R324 SLEEP_XTAL_OUT LPO_IN 35 GND TX_PU_TDD_N R325 7-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Flow Chart of Troubleshooting 7-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 Flow Chart of Troubleshooting 7-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 61: Exploded Views And Parts List

    QSC14 QRE02 QCR43 QCW08 QCR12 QFU03 QSC12 QSC11 QAN02 QCW03 QRH01 QCR08 QRF03 QRE01 QFL01 QCW04 QVO01 QSC08 QCR16 QIF01 QRF01 QSC04 QCR53 QMW02 QBA01 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 62: Parts List

    QRH01 MEC-ROTARY HINGE GH75-06361A 　 QCW08 ICT-ROTARY HINGE WASHER GH70-00364A QFR01 　 MEC-FRONT COVER GH75-06351A 　 QRF03 PMO-EAR COVER GH72-23362A 　 QCW04 PMO-TFR COVER GH72-19109A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 63 MPR-BOHO VINYL F/L C GH74-17104A MPR-TAPE MAIN SHIELD GH74-17105A MPR-TAPE KEY MOD FPCB GH74-17168A MPR-TAPE ZIP TYPE CON GH74-17178A MPR-BOHO VINYL CAM LENSD GH74-17472A PAA ETC-SPH A940(XAR) GH99-11282A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 64: Test Jig

    Exploded views and Parts List 8-3 DM Cable(GH39-00129A) 8-4 Test JIG 8-6 Test Jig Cable(GH39-00399A) 8-5 RF Cable(GH39-00397A) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 65: Block Diagram

    Cell PA 6100 Bluetooth Module PCS PA UART, VC-TCXO PCM I/F 6500 Cell Cell 6000 6000 Camera Memory 1024MB NAND + 512MB SDRAM GPS LNA SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 66: Electrical Parts List

    2203-006091 C143 C-CER,CHIP 2203-000812 C144 C-CER,CHIP 2203-000812 C145 C-CER,CHIP 2203-000812 C146 C-CER,CHIP 2203-006091 C147 C-CER,CHIP 2203-005061 C149 C-CER,CHIP 2203-005061 C-CER,CHIP 2203-005065 C150 C-CER,CHIP 2203-005061 10-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 67 2203-001652 C214 C-CER,CHIP 2203-000585 C215 C-CER,CHIP 2203-006201 C216 C-CER,CHIP 2203-000585 C217 C-CER,CHIP 2203-006201 C218 C-CER,CHIP 2203-000438 C219 C-CER,CHIP 2203-005664 C-CER,CHIP 2203-000995 C220 C-CER,CHIP 2203-005664 10-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 68 C263 C-CER,CHIP 2203-000233 C264 C-CER,CHIP 2203-000438 C265 C-CER,CHIP 2203-005061 C266 C-CER,CHIP 2203-000254 C267 C-CER,CHIP 2203-000812 C268 C-CER,CHIP 2203-000438 C269 C-CER,CHIP 2203-000438 C270 C-TA,CHIP 2404-001381 10-3 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 69 C346 C-CER,CHIP 2203-006093 C347 C-CER,CHIP 2203-005482 C348 C-CER,CHIP 2203-000233 C349 C-CER,CHIP 2203-000254 C350 C-CER,CHIP 2203-006201 C354 C-CER,CHIP 2203-000438 C355 C-CER,CHIP 2203-005050 C356 C-CER,CHIP 2203-000233 10-4 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 70 C441 C-CER,CHIP 2203-000885 C442 C-CER,CHIP 2203-005480 C443 C-CER,CHIP 2203-006190 C445 C-CER,CHIP 2203-001072 C446 C-CER,CHIP 2203-000940 C447 C-CER,CHIP 2203-000254 C448 C-CER,CHIP 2203-000679 C449 C-CER,CHIP 2203-005061 10-5 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 71 C539 C-TA,CHIP 2404-001105 C540 C-CER,CHIP 2203-006093 C541 C-CER,CHIP 2203-006093 C542 C-CER,CHIP 2203-005061 C543 C-TA,CHIP 2404-001105 C544 C-CER,CHIP 2203-000254 C545 C-CER,CHIP 2203-000628 C546 C-CER,CHIP 2203-000386 10-6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 72 HEA50 HEADER-BOARD TO BOARD 3711-005550 HEA50 HEADER-BOARD TO BOARD 3711-005618 HEA50 HEADER-BOARD TO BOARD 3711-005728 CONNECTOR-FPC/FFC/PIC 3708-001880 SOCKET-BOARD TO BOARD 3710-002042 L100 BEAD-SMD 3301-001342 10-7 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 73 L507 BEAD-SMD 3301-001342 L508 BEAD-SMD 3301-001342 L509 INDUCTOR-SMD 2703-002768 L510 INDUCTOR-SMD 2703-002768 OSC10 CRYSTAL-SMD 2801-004353 OSC10 RESONATOR-CERAMIC 2802-001182 OSC30 OSCILLATOR-VCO 2806-001348 OSC30 OSCILLATOR-VCTCXO 2809-001277 10-8 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 74 R170 R-CHIP 2007-000140 R173 R-CHIP 2007-000141 R174 R-CHIP 2007-001341 R175 R-CHIP 2007-000171 R179 R-CHIP 2007-000162 R-CHIP 2007-007131 R180 R-CHIP 2007-000171 R-CHIP 2007-000171 R-CHIP 2007-000151 10-9 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 75 R310 R-CHIP 2007-000172 R311 R-CHIP 2007-000171 R312 R-CHIP 2007-000140 R313 R-CHIP 2007-001298 R314 R-CHIP 2007-000171 R318 R-CHIP 2007-000138 R324 R-CHIP 2007-000165 R325 R-CHIP 2007-000169 10-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 76 IC-POSI.FIXED REG. 1203-003787 U201 IC-VOL. DETECTOR 1203-003408 U202 FET-SILICON 0505-001889 U203 IC-POWER SUPERVISOR 1203-003495 U204 DIODE-ARRAY 0407-001038 U205 IC-AUDIO AMP 1201-002241 U208 IC-CMOS LOGIC 0801-002661 10-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 77 1405-001119 V501 VARISTOR 1405-001119 V503 VARISTOR 1405-001119 V504 VARISTOR 1405-001119 V505 VARISTOR 1405-001082 V507 VARISTOR 1405-001082 V508 VARISTOR 1405-001082 VARISTOR 1405-001082 ZD201 DIODE-ZENER 0403-001547 10-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 78: Pcb Diagrams

    11. PCB Diagrams 11-1. Main PCB Top Diagram 11-1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 79 PCB Diagrams 11-2. Main PCB Bottom Diagram 11-2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

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