Samsung SGH-E250D страница 48 Скачать руководство пользователя

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SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

This Document can not be used without Samsung's authorization

9-23

9-15. DCS Transmitter

U106 pin 4,5,6,7

>= 0.2Vp

U103 pin1
<= -4dBm

U103 pin18

>= 25dBm

F100 pin8

>= 25dBm

TX ON (5Level)

Yes

Check +VBAT or PAM

control signal

Resolder or Change U103

Check

U103pin2,3,5,6,8+

Vbatt pin4,OK?

Yes

U106 pin 16,17,29,

32,36

>=2.8Vpin10>=1.8

Yes

Resolder U106

Check UCP200

END

Yes

Check & Resolder

U106,C117,L123,C126

Resolder or Change U103

Check ANT Switch

control circuit

Change or Resolder F100

Check F100

pin9= H (2.6V),

pin 11 = L

Resolder RFS100,C101

F100 Pin13

>= 25dBm

Содержание SGH-E250D

Страница 1: ...ety Precautions 2 Specification 3 Product Function 4 Array course control 5 Exploded View and Parts List 6 MAIN Electrical Parts List 7 Block Diagrams 8 PCB Diagrams 9 Flow Chart of Troubleshooting 10 Reference data 11 Disassembly and Assembly Instructions ...

Страница 2: ...d or domestic law Samsung Electronics Co Ltd 2007 12 Rev 1 0 ⓒ Country Web Site North America service samsungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe europe samsungportal com China china samsungportal com Asia asia samsungportal com Mideast Africa mea samsungportal com GSPN Global Service Partner Network ...

Страница 3: ...worn away Use a thicken twisted wire when you measure level A thicken twisted wire has low resistance therefore error of measurement is few Repair after separate Test Pack and Set because for short danger for example an overcurrent and furious flames of parts etc when you repair board in condition of connecting Test Pack and tuning on Take specially care of soldering because Land of PCB is small a...

Страница 4: ...ined your body before you touch semiconductor or parts with semiconductor There are ways that you touch an earthed place or wear static electricity prevention string on wrist Use earthed soldering steel when you connect or disconnect ESD Use soldering removing tool to break static electricity otherwise ESD will be damaged by static electricity Don t unpack until you set up ESD on product Because m...

Страница 5: ...spacing 45MHz 45MHz 95MHz 80MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class 5pcl 19pcl 5pcl 19pcl 0pcl 15pcl 0pcl 15pcl Sensitivity 102dBm...

Страница 6: ... control level DCS1800 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 10 10 4 dBm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level PCS1800 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 10 10 4 dBm 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 ...

Страница 7: ...ization Main Function SlimSlide Design Intenna VGA Camera Bluetooth V 2 0 Stereo Bluetooth Headset Mobile Tracker SOS Messaging Large 2 0 65K Color TFT Display SMS MMS E Mail WAP 2 0 Java MIDP 2 0 MP3 AAC MP4 3GPP Decoding Video Recording and Messaging GSM GPRS Class 10 Triple Band GSM900 DCS PCS 64 Poly Speaker Phone Voice Clarity ...

Страница 8: ...SAMSUNG Proprietary Contents may change without notice Product Function 3 2 This Document can not be used without Samsung s authorization ...

Страница 9: ...ge without notice 4 Array course control 4 1 This Document can not be used without Samsung s authorization Software Adjustments RF CABLE GH39 00397A Power Supply Cable Serial Cable CSA LL64151 A Test Jig GH80 03306A Test Cable GH39 00499A ...

Страница 10: ...der V1 0 Lite For PNX5230 exe E250 Mobile Phone Data Cable Binary file TFS file 4 2 S W Downloader Program Load the binary download program by executing the OneNAND Downloder V1 0 Lite For PNX5230 exe 1 Select the connected serial port and the rate of speed 2 Select the check box the mode you want to download if the binary file wanted check only BIN if the tfs file wanted check only TFS if all the...

Страница 11: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 3 This Document can not be used without Samsung s authorization 3 Select the file s what you want to download ...

Страница 12: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 4 This Document can not be used without Samsung s authorization ...

Страница 13: ...ment can not be used without Samsung s authorization 5 1 Cellular phone Exploded View QFU01 QKP02 QKP01 QMW01 QME03 QME02 QFR01 QCW01 QCA05 QCR17 QSC05 QSC06 QSP01 QMO01 QLC01 QCA01 QSD01 QHI01 QIF01 QFL01 QFR02 QME01 QBR04 QMI03 QMI01 QAN02 QMP01 QRE01 QSC13 QRF01 QBA00 QCR03 QBA01 QVO01 QCR03 QME11 ...

Страница 14: ...PPER VOD GH98 03300A QHI01 ASSY HINGE PUSH ROD GH98 03165A QIF01 PMO COVER IF GH72 34244A QKP01 ASSY KEYPAD MAIN EU SIL GH98 02264A QKP02 ASSY KEYPAD SUB VOD SIL GH98 03535A QLC01 ELA ETC E250LCD MODULE GH96 02628B QME01 KEY FPCB MAIN KEY PBA GH59 04760A QME02 DOME SHEET 10KEY SUB GH59 05007A QME03 MEA SLIDER FPCB KIT E250D GH97 08172A QME11 ASSY ETC LCD SUB PBA GH59 04854A QMI01 MICROPHONE ASSY G...

Страница 15: ... TAPE GH74 27455A MPR INSU TAPE GH74 27456A MPR TAPE LABEL GH74 28874A MPR SPONGE GH74 29496A MPR VINYL BOHO MAIN GH74 30340A MPR VINYL BOHO SUB KEYPAD GH74 31218A TAPE S UPPER GH74 34678A MPR ELEC TAPE GH74 27495A MPR GASK TAPE GH74 28782A MPR REMOVE TAPE LCD GH74 13804A MPR TAPE GH74 27509A MPR ELEC TAPE GH74 27457A TAPE GASK GH74 18462A LABEL R WATER SOAK GH68 09361A MANUAL USERS VODA GERMAN GH...

Страница 16: ...01 IC POSI FIXED REG SA 1203 003737 U402 IC POSI FIXED REG SA 1203 003737 U404 IC POSI FIXED REG SA 1203 003737 U405 IC POSI FIXED REG SA 1203 004382 U403 IC POWER SUPERVISOR SA 1204 002688 U501 IC DEMODULATOR SA 1205 002942 U102 IC TRANSCEIVER SA 1205 003082 UCP200 IC COMM CONTROLLER SA 1205 003283 U106 IC TRANSCEIVER SA 1404 001221 VR600 THERMISTOR NTC SA 2007 000140 R103 R CHIP SA 2007 000140 R...

Страница 17: ... CHIP SA 2007 003001 R524 R CHIP SA 2007 007014 R303 R CHIP SA 2007 007014 R309 R CHIP SA 2007 007107 R418 R CHIP SA 2007 007107 R602 R CHIP SA 2007 007142 R415 R CHIP SA 2007 007142 R419 R CHIP SA 2007 007142 R505 R CHIP SA 2007 007142 R613 R CHIP SA 2007 007317 R413 R CHIP SA 2007 007318 R408 R CHIP SA 2007 007334 R502 R CHIP SA 2007 007489 R105 R CHIP SA 2007 007528 R513 R CHIP SA 2007 007528 R...

Страница 18: ...0386 C541 C CER CHIP SA 2203 000386 C542 C CER CHIP SA 2203 000425 C215 C CER CHIP SA 2203 000425 C222 C CER CHIP SA 2203 000425 C416 C CER CHIP SA 2203 000425 C417 C CER CHIP SA 2203 000425 C605 C CER CHIP SA 2203 000628 C537 C CER CHIP SA 2203 000679 C515 C CER CHIP SA 2203 000679 C516 C CER CHIP SA 2203 000679 C538 C CER CHIP SA 2203 000812 C119 C CER CHIP SA 2203 000812 C202 C CER CHIP SA 2203...

Страница 19: ...5482 C221 C CER CHIP SA 2203 005482 C307 C CER CHIP SA 2203 005482 C309 C CER CHIP SA 2203 005482 C312 C CER CHIP SA 2203 005482 C428 C CER CHIP SA 2203 005482 C513 C CER CHIP SA 2203 005482 C514 C CER CHIP SA 2203 005482 C519 C CER CHIP SA 2203 005482 C520 C CER CHIP SA 2203 005482 C531 C CER CHIP SA 2203 005483 C502 C CER CHIP SA 2203 005717 C612 C CER CHIP SA 2203 005717 C613 C CER CHIP SA 2203...

Страница 20: ...R CHIP SA 2203 006562 C429 C CER CHIP SA 2203 006562 C430 C CER CHIP SA 2203 006562 C504 C CER CHIP SA 2203 006562 C506 C CER CHIP SA 2203 006562 C606 C CER CHIP SA 2203 006824 C131 C CER CHIP SA 2203 006825 C432 C CER CHIP SA 2203 006838 C100 C CER CHIP SA 2203 006838 C102 C CER CHIP SA 2203 006838 C103 C CER CHIP SA 2203 006842 C111 C CER CHIP SA 2203 006901 C431 C CER CHIP SA 2404 001226 TA503 ...

Страница 21: ...659 L111 BEAD SMD SA 3301 001729 L500 BEAD SMD SA 3301 001729 L501 BEAD SMD SA 3301 001729 L507 BEAD SMD SA 3301 001729 L508 BEAD SMD SA 3301 001729 L509 BEAD SMD SA 3705 001358 CN101 CONNECTOR COAXIAL SA 3709 001344 CD600 CONNECTOR CARD EDGE SA 3709 001400 SIM400 CONNECTOR CARD EDGE SA 3710 002465 IFC500 SOCKET INTERFACE SA 3711 005578 HEA300 HEADER BOARD TO BOARD SA 3711 005747 HDC600 HEADER BOA...

Страница 22: ...BT DCL FSC DU DD BT_INT Audio APM LM4946SQ VBAT HFR_P HFR_N EAR1 EAR2 SPK_P SPK_N EARSPK_R EARSPK_COM EARSPK_L MOTOR Hall IC HED52A1U11 VDD_IO_HIGH SLIDE CAM_D 0 7 VSYNC HSYNC PCLK CAM_EN C LDO XC6401FF20 VBAT V_CAM18 V_CAM28 MCLK S_RST SUB VBAT M LDO R1114D331D VIB_EN VDD_VIB VDD_IO_LOW VDD_IO_HIGH LCD 2 0 QQVGA LD_D 0 15 L_RS LCD_CS LCD_WR LCD_RST CLKBURST PHONE MEMORY KAP29VG00M D444 oneNAND 25...

Страница 23: ...Block Diagrams 7 2 ...

Страница 24: ...SAMSUNG Proprietary Contents may change without notice 8 PCB Diagrams 8 1 This Document can not be used without Samsung s authorization Top ...

Страница 25: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 8 2 This Document can not be used without Samsung s authorization Bottom ...

Страница 26: ...es not work Change the Battery END No Yes C420 VISA 2 7V Check the PMU related to VINT No Yes Check the Clock at C416 32KHZ Resolder OSC400 No Yes C400 VDD_IO_LOW_1 8V C405 VDD_IO_HIGH_2 9V H Check the related circuit No Yes L400 VDD_GSM_CORE_1 2V 1 8V Check the VDD_GSM_CORE_1 2V circuit No Yes Check for the clock at C110 26MHz Check the clock generation circuit related to U106 No Yes Check the in...

Страница 27: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 2 ...

Страница 28: ...roubleshooting This Document can not be used without Samsung s authorization 9 3 9 2 Initial UCP200 pin C11 RSTON H Initial Failure Check the circuit related to reset END No Yes UCP200 pin F1 RSTEXTn H OK Yes Yes No change UCP200 Check the 16bit data signal memory CE Yes ...

Страница 29: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 4 ...

Страница 30: ... not be used without Samsung s authorization 9 5 9 3 Charging Part Check the U403 pin 38 4 9V Abnormal charging part END No Yes U403 pin 34 AUX_ON L No Yes Check the U403 pin 46 1 4V No Yes Check the circuit related to V_EXT_CHARGE Check the circuit related to AUX_ON signal Resolder or replace U403 Yes ...

Страница 31: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 6 ...

Страница 32: ...ed without Samsung s authorization 9 7 9 4 Sim Part SIM400 pin 4 5 H Phone can t access SIM Card Resolder or replace U403 Check the SIM Card END No Yes Yes Yes No Check the Clock After Power ON Check SIMCLK Signal on pin3 of SIM400 in a few second Yes No Replace PBA After SIM card insert SIM400 pin 2 H SIMRST Yes ...

Страница 33: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 8 ...

Страница 34: ...e used without Samsung s authorization 9 9 9 5 Microphone Part Check the connection from MIC Check the circuit from UCP200 to MIC Resolder MIC Resolder the C514 C520 R516 R519 END No Yes Yes Yes Yes No Check F500 PIN 8 H No Check the JACK_IN signal Microphone does not work Yes Check the MIC No Replace the MIC ...

Страница 35: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 10 ...

Страница 36: ...art Melody U500 pin 7 2 9V Speaker does not work Check the Clock signal at Pin 3 of U106 26MHz Check the clock generation circuit related to U106 and U103 No Yes No Resolder or replace U500 Yes U500 pin 15 17 1 8V When U500 operate Resolder U500 No Yes No END Is Speaker working Change the Speaker Yes Yes HDC600 pin 2 3 1 8V When U500 operate Resolder HDC600 No Yes ...

Страница 37: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 12 ...

Страница 38: ...ing This Document can not be used without Samsung s authorization 9 13 9 7 Key Data Input When one of the keys is pushed is it displayed on LCD Check the Dome sheet Key Pad END No Yes Yes Check Initial Operation When one of the keys is pushed KBIO signal is OK Replace the PBA No Yes ...

Страница 39: ...ce This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 14 9 8 Receiver Part Is Receiver working Resolder UCP200 or Change PBA END No Yes Yes Receiver does not work No Replace the Receiver Yes Is Receiver working ...

Страница 40: ...shooting This Document can not be used without Samsung s authorization 9 15 9 9 Back Light for Color Main LCD Is LCD Contrast set on high level in the Menu Set LCD Contrast on high level END No Yes Yes Backlight does not work HDC600 PIN 23 H Resolder HDC600 or change PBA No Yes ...

Страница 41: ...ce This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 16 9 10 Key Back Light U401 U404 pin6 H Check the U401 U404 related to VDD_KEY END No Yes Yes Main Key LED does not work U401 U404 pin3 3 3V Change U401 U404 ...

Страница 42: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 17 ...

Страница 43: ...art of Troubleshooting 9 18 9 11 Camera part Camera function does not work Yes No Reconnect the camera module Check the Camera connector on LCD module Yes HDC600 Pin21 H No Resolder HDC600 or change PBA Yes C310 26MHz No Check U106 pin8 related to 26MHz and U603 Yes Is there another problem END Replace the camera module Yes ...

Страница 44: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 19 ...

Страница 45: ...nter freq 67 7kHz Amp 50dBm Yes F100 Pin13 65dBm No Resolder CN101 C103 L102 Yes Check ANT Switch control circuit F100 1 2 68dBm Check F100 pin9 pin11 L No No Yes Yes Resolder F100 No Resolder C108 C109 L105 U106 pin 24 70dBm pin 25 70dBm Yes No U106 pin 16 17 29 32 36 2 8V U106 pin 4 5 6 7 0 2Vp p No Check Resolder C117 C123 C126 RF26MHz RF PSU Part Yes Yes Resolder U106 Check UCP200 END ...

Страница 46: ...M control signal Resolder or Change U103 Check U103pin 2 3 5 6 8 Vbatt pin4 OK Yes U106 pin 16 17 29 32 36 2 8Vpin10 1 8 Yes Resolder U106 Check UCP200 END No Yes Yes Check U106 C117 C126 L123 U106 pin 4 5 6 7 0 2Vp p Resolder or Change L101 Check ANT Switch control circuit Change or Resolder F100 U103 pin7 4dBm U103 pin12 30dBm F100 pin10 30dBm Check F100 pin11 H 2 6V Pin9 L TX ON 5Level Resolder...

Страница 47: ...k UCP200 No No No No No Yes Yes Yes Yes Yes Yes Resolder U106 Check Resolder U102 C117 C123 C126 RF26MHz RF PSU Part U106 pin 16 17 29 32 36 2 8V pin10 1 8V Resolder C104 C122 L104 Resolder F100 Check ANT Switch control circuit U106 pin 35 70dBm pin 36 70dBm U106 pin 4 5 6 7 0 2Vp p F100 3 4 68dBm RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No END Resolder CN101 C103 L102 F100 Pin13 65dBm ...

Страница 48: ...0 pin8 25dBm TX ON 5Level No No No No No No Yes Yes Yes Yes Yes Check VBAT or PAM control signal Resolder or Change U103 Check U103pin2 3 5 6 8 Vbatt pin4 OK Yes U106 pin 16 17 29 32 36 2 8Vpin10 1 8 Yes Resolder U106 Check UCP200 END No No Yes Yes Check Resolder U106 C117 L123 C126 Resolder or Change U103 Check ANT Switch control circuit Change or Resolder F100 Check F100 pin9 H 2 6V pin 11 L Res...

Страница 49: ... center freq 67 7kHz Amp 50dBm Yes F100 Pin13 65dBm No Resolder CN101 C103 L102 Yes F100 5 6 68dBm Check F100 pin10 pin12 L No No Check ANT Switch control circuit Yes Yes Resolder F100 U106 pin 20 70dBm pin 21 70dBm No Resolder C112 C120 L105 Yes U106 pin 16 17 29 32 36 2 8Vpin10 1 8 U106 pin 4 5 6 7 0 2Vp p No No Check Resolder U102 C117 C123 C126 Yes Yes Resolder U106 Check UCP200 END ...

Страница 50: ...0 pin8 25dBm TX ON 5Level No No No No No No Yes Yes Yes Yes Yes Check VBAT or PAM control signal Resolder or Change U103 Check U103pin2 3 5 6 8 Vbatt pin4 OK Yes U106 pin 16 17 29 32 36 2 8Vpin10 1 8 Yes Resolder U106 Check UCP200 END No No Yes Yes Check Resolder U106 C117 L123 C126 Resolder or Change U103 Check ANT Switch control circuit Change or Resolder F100 Check F100 pin9 H 2 6V pin 11 L Res...

Страница 51: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 26 ...

Страница 52: ...K Binary Phase Shift Keying CA Conditional Access CDM Code Division Multiplexing C I Carrier to Interference DMB Digital Multimedia Broadcasting EN European Standard ES Elementary Stream ETSI European Telecommunications Standards Institute MPEG Moving Picture Experts Group PN Pseudo random Noise PS Pilot Symbol QPSK Quadrature Phase Shift Keying RS Reed Solomon SI Service Information TDM Time Divi...

Страница 53: ...SAMSUNG Proprietary Contents may change without notice Reference data 10 2 This Document can not be used without Samsung s authorization ...

Страница 54: ...ul of transforming the rear cover 1 Be careful of body damage and scretch 1 Be careful of damaging F PCB 1 Be careful of damaging components 1 Remove the RF Sheet SCREW Cover of rear 2 Unscrew 5 screws 1 1 Remove the volumn Key 2 Disassemble the connector 2 3 1 Open the T Flash power cover 2 Lift main board 3 Detach the LCD Connector after slide down 4 1 Separate board from the set 11 1 Disassembl...

Страница 55: ...ed without Samsung s authorization 1 Be careful of damaging FPCB detaching Volumn Key Fpcb 2 Be careful of body damage and scretch 1 Be careful of body damage and scretch 5 6 7 8 1 Remove the EMI tape 1 Detach the Volumn Key Fpcb 2 Disassemble key can from the point of the picture 1 Disassemble the key pad 1 Unscrew 2 screws ...

Страница 56: ...careful of damaging F PCB 1 Be careful of body damage and scretch 2 Be careful of damaging camera F PCB 9 10 11 12 1 Unscrew 4 screws 2 Disassemble the upper with a couple of thumbs pressing the point of picture 1 Match the hole of LOWER and FRONT holding up the slide 2 Draw out the FPCB from the hole 1 Remove the tape covering FPCB Connector 2 Disassemble FPCB after lifting Connector 1 Disassembl...

Страница 57: ...1 4 This Document can not be used without Samsung s authorization 1 Be careful of body damage and scretch 2 Be careful of sticking between two sides tape and LCD 13 1 Disassemble from upper after lifting lightly the upside of the Sub PBA 2 Disassemble SPK MOT CAMERA 1 Disassemble Sub Key Pad 15 ...

Страница 58: ... 1 Be careful of body damage and scretch 2 Be careful of damaging F PCB 1 Be careful of damaging F PCB 1 2 3 4 1 Joint the Sub Key Pad 1 Assemble Sub PBA inserting the bottom of the board 2 Assemble CAMERA SPK MOT after inserting camera FPCB 1 Insert FPCB CON TO CON 2 Attach conserving TAPE 1 Match the hole pulling down lightly the SLIDE ASSY like picture 2 Insert FPCB 11 2 Assembly Instructions ...

Страница 59: ... authorization 1 Be careful of body damage and scretch 1 Be careful of body damage and scretch 1 Be careful of body damage and scretch 1 Check up the fitting between key pad and REAR 7 8 1 Insert both screw caps in each direction 1 Assemble the key pad in FRONT 7 8 1 Assemble SLIDE ASSY part 2 Assemble from the bottom side 1 Screw down 4 screws ...

Страница 60: ...e careful of damaging F PCB 1 Check up whether tape color is same with SET color or not 1 Be careful of damaging BGA components 1 Be careful of body damage and scretch 10 9 1 Attach the EMI tape 1 Assemble the key can 2 Check up the attaching FPCB in Volumn Key side 11 12 1 Assemble the FPCB with main board 1 Open the T Flash Power Cover 2 Assemble the main board ...

Страница 61: ...y Instructions 11 8 This Document can not be used without Samsung s authorization 1 Be careful of damaging BGA components 1 Be careful of body damage and scretch 13 1 Insert the Volumn Key 2 Assemble the Key Connector 1 Screw down 5screws 2 Attach RF Sheet SCREW Cover of rear 14 ...

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