Samsung SGH SGH-A737 Service Manual Download Page 37

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SAMSUNG Proprietary-Contents may change without notice

Flow Chart of Troubleshooting

9-3

This Document can not be used without Samsung's authorization

9-1-2. System Initial

Check the clock generation

circuit (related to U402 and

TCX100)

Check the

PM401

YES

Check the Audio part

Check the LCD part

Check the OSC400

END

Sound operation OK ?

LCD Display OK ?

Initial Failure

The pin #9 of

PM401

" Low --> High" ?

Check the Sleep X-tal signal's

at C426

Check the clock signal's

at R142

Summary of Contents for SGH SGH-A737

Page 1: ...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 efrcom ...

Page 2: ...be punished under applicable International and or domestic law 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 ...

Page 3: ... Use a thicken twisted wire when you measure level A thicken twisted wire has low resistance therefore errors of measurement are 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 and weak...

Page 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...

Page 5: ...5MHz 80MHz Mod Bit rate Bit Period 270 833kbp s 3 692us 270 833kbp s 3 692us 270 833kbp s 3 692us 270 833kbp s 3 692us 3 84Mcps 3 84Mcps Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Frame length 10ms Slot length 0 667ms Frame length 10ms Slot length 0 667ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK 0 3GMSK QPSK HQPSK QPSK HQPSK MS Power 33dBm 5dB m 33dBm 5...

Page 6: ...1 8 4 dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level GSM850 GSM900 5 33 2 dBm 6 31 2 dBm 7 29 2 dBm 8 27 2 dBm 9 25 2 dBm 10 23 2 dBm 11 21 2 dBm 12 19 2 dBm 13 17 2 dBm 14 15 2 dBm 15 13 2 dBm 16 11 3 dBm 17 9 3 dBm 18 7 3 dBm 19 5 3 dBm TX Power 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 ...

Page 7: ... 2 0 z Video Telephony Streaming z USB 2 0 z WAP2 0 JAVA2 0 MPEG4 z MIDP 2 0 CLDC 1 1 z SOS Message Auto Time Setting z GPRS EDGE class 10 z MMS EMS z BT Braodcom BCM2045 z Battery 900mAH 553443 z Weight 92 8 g z Memory 1Gb NAND 512Mb SDRAM z Camera 1 3M LSI z LCD 2 0 QCIF TFT AMLCD z Size 99 5x47x14 8mm z Band GSM850 900 1800 1900 W850 1900 z BB Qualcomm MSM6260 PM6650 z RF Qualcomm RTR6275 RFR62...

Page 8: ...SAMSUNG Proprietary Contents may change without notice Operation Instruction and Installation 3 2 This Document can not be used without Samsung s authorization ...

Page 9: ...t notice 4 Array course control 4 1 This Document can not be used without Samsung s authorization DATA CABLE GH39 00859B RF Test Cable GH39 00468A 4 1 Software Adjustments Power Supply Cable Serial Cable Test Cable GH39 00886A Test Jig GH80 03308A ...

Page 10: ...rogram SGH L737 Mobile Phone Data Cable Binary file 4 2 2 S W Downloader Program Load the binary download program by executing the downloader V5 30 1 Select the connected serial port and the rate of speed 2 Select the check box the mode you want to download if the boot file wanted check boot change if the binary file wanted check only modem Rsrc1 Rsrc2 Factory FS FOTA 3 Select the file s what you ...

Page 11: ...d without Samsung s authorization 5 Exploded View and Parts List 5 1 Cellular phone Exploded View QMW01 QFR01 QVO01 QCR32 QMP01 QCR06 QSC14 QBA01 QFU01 QSP01 QCA01 QPC01 QLC01 QCR12 QFL01 QCK01 QKP01 QKP02 QME02 QME00 QSH01 QAN02 QRE01 QCR06 QRF01 QSC13 QBA00 QSD01 QCR78 QIF01 QME01 QCR79 ...

Page 12: ... V2 GH98 06429A QKP02 ASSY KEYPAD SUB BLU CIN V2 GH98 06430A QLC01 LCD SGH A737 MODULE GH07 01129A QME02 KEY FPCB SUB KEY FPCB GH59 04517A QMP01 PBA MAIN SGH A737 GH92 03748A QMW01 ASSY COVER MAIN WINDOW GH98 04772A QPC01 MEA FPCBKIT GH97 08157A QRF01 ASSY COVER RF GH98 06646A QSC13 RMO RUBBER SCREW CAP REAR L GH73 10815A QSC14 TAPE FRONT SHEET GH74 35980A QSH01 ICT SHIELD CAN GH70 02941A QSP01 AS...

Page 13: ...15187A MANUAL USERS PARENTAL CONTROL GH68 15816A MANUAL USERS NAPSTER QSG GH68 15817A MANUAL USERS QSG ENGLISH GH68 15818A MANUAL USERS ATT ENGLISH GH68 15819A MANUAL USERS ATT SPANISH GH68 15820A BOX SPACE AT T GH69 05279A BOX UNIT ATT GH69 05553A CUSHION CASE NEW GH69 06002A PMO LOCKER INTENNA GH72 43452A TAPE MAIN WINDOW GH74 34303A TAPE INSU FRONT EMI GH74 34304A VINYL BOHO UPPER OUT GH74 3522...

Page 14: ...SAMSUNG Proprietary Contents may change without notice Exploded View and Parts List 5 4 This Document can not be used without Samsung s authorization ...

Page 15: ...A C109 C CER CHIP 2203 000233 SA C110 C CER CHIP 2203 005682 SA C111 C CER CHIP 2203 005682 SA C112 C CER CHIP 2203 000854 SA C118 C CER CHIP 2203 005725 SA C119 C CER CHIP 2203 005682 SA C120 C CER CHIP 2203 005777 SA C121 C CER CHIP 2203 005777 SA C122 C CER CHIP 2203 005682 SA C123 C CER CHIP 2203 006423 SA C124 C CER CHIP 2203 006194 SA C131 C CER CHIP 2203 005659 SA C132 C CER CHIP 2203 00565...

Page 16: ...ER CHIP 2203 005727 SA C157 C CER CHIP 2203 006123 SA C158 C CER CHIP 2203 006123 SA C160 C CER CHIP 2203 005739 SA C161 C CER CHIP 2203 005736 SA C162 C CER CHIP 2203 005725 SA C163 C CER CHIP 2203 005725 SA C164 C CER CHIP 2203 005725 SA C165 C CER CHIP 2203 000438 SA C166 C CER CHIP 2203 006423 SA C171 C CER CHIP 2203 006194 SA C172 C CER CHIP 2203 006194 SA C173 C CER CHIP 2203 005682 SA C174 ...

Page 17: ...R CHIP 2203 005736 SA C211 C CER CHIP 2203 005729 SA C213 C CER CHIP 2203 002677 SA C214 C CER CHIP 2203 005552 SA C215 C CER CHIP 2203 005444 SA C216 INDUCTOR SMD 2703 001751 SA C218 C CER CHIP 2203 005446 SA C220 C CER CHIP 2203 000386 SA C221 INDUCTOR SMD 2703 001752 SA C222 C CER CHIP 2203 001239 SA C223 C CER CHIP 2203 005682 SA C231 C CER CHIP 2203 006123 SA C232 C CER CHIP 2203 006123 SA C2...

Page 18: ...CER CHIP 2203 006620 SNA C259 C CER CHIP 2203 005993 SA C260 C CER CHIP 2203 006423 SA C261 C CER CHIP 2203 005682 SA C262 C CER CHIP 2203 006399 SA C263 C CER CHIP 2203 005682 SA C264 C CER CHIP 2203 006399 SA C265 C CER CHIP 2203 005682 SA C266 C CER CHIP 2203 005732 SA C267 C CER CHIP 2203 005732 SA C268 C CER CHIP 2203 000438 SA C300 C CER CHIP 2203 006668 SA C303 C CER CHIP 2203 006462 SA C30...

Page 19: ...CER CHIP 2203 006399 SA C328 C CER CHIP 2203 006423 SA C329 C CER CHIP 2203 006194 SA C330 C CER CHIP 2203 006423 SA C331 C CER CHIP 2203 006423 SA C332 C CER CHIP 2203 006194 SA C333 C CER CHIP 2203 006423 SA C334 C CER CHIP 2203 006194 SA C335 C CER CHIP 2203 006423 SA C336 C CER CHIP 2203 006423 SA C337 C CER CHIP 2203 006194 SA C338 C CER CHIP 2203 006194 SA C339 C CER CHIP 2203 006423 SA C340...

Page 20: ...CER CHIP 2203 006423 SA C409 C CER CHIP 2203 006305 SA C410 C CER CHIP 2203 006399 SA C411 C CER CHIP 2203 006305 SA C412 C CER CHIP 2203 006399 SA C413 C CER CHIP 2203 006305 SA C414 C CER CHIP 2203 006399 SA C415 C CER CHIP 2203 006399 SA C416 C CER CHIP 2203 006824 SA C417 C CER CHIP 2203 006305 SA C418 C CER CHIP 2203 006824 SA C419 C CER CHIP 2203 006399 SA C420 C CER CHIP 2203 006399 SA C421...

Page 21: ...CER CHIP 2203 005682 SA C445 C CER CHIP 2203 005682 SA C446 C CER CHIP 2203 006399 SA C447 C CER CHIP 2203 006423 SA C448 C CER CHIP 2203 006474 SA C449 C CER CHIP 2203 006305 SA C450 C CER CHIP 2203 006824 SA C451 C CER CHIP 2203 006562 SA C500 C CER CHIP 2203 006562 SA C501 C CER CHIP 2203 006399 SA C502 C CER CHIP 2203 006562 SA C503 C CER CHIP 2203 006423 SA C504 C CER CHIP 2203 005682 SA C505...

Page 22: ...03 006562 SA C601 C CER CHIP 2203 006348 SA C602 C CER CHIP 2203 006399 SA C604 C CER CHIP 2203 006562 SA C605 C CER CHIP 2203 006681 SA C607 C CER CHIP 2203 006423 SA C608 C CER CHIP 2203 002709 SA C609 C CER CHIP 2203 006423 SA C700 C CER CHIP 2203 006423 SA C701 C CER CHIP 2203 006562 SA C702 C CER CHIP 2203 006423 SA C703 C CER CHIP 2203 005682 SA C704 C CER CHIP 2203 005682 SA C706 C CER CHIP...

Page 23: ...1 FILTER EMI ESD 2901 001348 SA HDC700 HEADER BOARD TO BOARD 3711 005367 SA HDC701 HEADER BOARD TO BOARD 3711 005296 SA IFC600 SOCKET INTERFACE 3710 002523 SA L101 INDUCTOR SMD 2703 002314 SA L102 INDUCTOR SMD 2703 002207 SA L103 INDUCTOR SMD 2703 002858 SA L110 INDUCTOR SMD 2703 002901 SNA L111 INDUCTOR SMD 2703 002901 SNA L112 INDUCTOR SMD 2703 002794 SA L113 INDUCTOR SMD 2703 002794 SA L114 IND...

Page 24: ...58 SA L220 INDUCTOR SMD 2703 002314 SA L221 INDUCTOR SMD 2703 002955 SA L222 INDUCTOR SMD 2703 002903 SA L223 INDUCTOR SMD 2703 003103 SA L400 INDUCTOR SMD 2703 003254 SA L401 INDUCTOR SMD 2703 002840 SA L402 INDUCTOR SMD 2703 002840 SA L500 BEAD SMD 3301 001762 SA L501 BEAD SMD 3301 001762 SA L502 BEAD SMD 3301 001762 SA L503 BEAD SMD 3301 001762 SA L504 BEAD SMD 3301 001789 SA L505 BEAD SMD 3301...

Page 25: ...HIP 2007 008542 SA R141 R CHIP 2007 008045 SA R142 R CHIP 2007 008542 SA R151 R CHIP 2007 008542 SA R152 R CHIP 2007 007489 SA R158 R CHIP 2007 008542 SA R159 R CHIP 2007 008542 SA R160 R CHIP 2007 000171 SA R161 R CHIP 2007 008542 SA R201 R CHIP 2007 008542 SA R202 R CHIP 2007 008806 SA R203 R CHIP 2007 008043 SA R204 R CHIP 2007 008045 SA R205 R CHIP 2007 008045 SA R211 R CHIP 2007 008547 SNA R2...

Page 26: ...HIP 2007 008806 SA R316 R CHIP 2007 008055 SA R317 R CHIP 2007 007741 SA R318 R CHIP 2007 000171 SA R400 R CHIP 2007 008483 SA R401 R CHIP 2007 008477 SNA R402 R CHIP 2007 008055 SA R403 R CHIP 2007 008516 SA R404 R CHIP 2007 008809 SNA R405 R CHIP 2007 008806 SA R406 R CHIP 2007 007468 SA R407 R CHIP 2007 008486 SA R409 R CHIP 2007 009171 SA R410 R CHIP 2007 009171 SA R411 R CHIP 2007 008486 SA R...

Page 27: ...CHIP 2007 008055 SA R509 R CHIP 2007 007538 SA R510 R CHIP 2007 007538 SA R511 R CHIP 2007 009408 SA R513 R CHIP 2007 008419 SA R515 R CHIP 2007 008548 SA R516 R CHIP 2007 009408 SA R517 R CHIP 2007 008542 SA R518 R CHIP 2007 008542 SA R519 R CHIP 2007 008542 SA R522 R CHIP 2007 009111 SA R523 R CHIP 2007 009111 SA R601 R CHIP 2007 008548 SA R602 R CHIP 2007 008419 SA R603 R CHIP 2007 008419 SA R6...

Page 28: ...OR VCTCXO 2809 001280 SA TR400 TR DIGITAL 0504 000168 SA U100 IC CMOS LOGIC 0801 003022 SA U101 IC SWITCH 1205 003277 SA U102 IC CMOS LOGIC 0801 003140 SA U103 IC CMOS LOGIC 0801 003022 SA U104 IC TRANSCEIVER 1205 003285 SA U105 IC TRANSCEIVER 1205 002942 SA U201 COUPLER DIRECTION 4709 001405 SA U202 COUPLER DIRECTION 4709 001406 SNA U203 IC RECEIVER 1205 003286 SA U301 IC SENSOR 1209 001712 SA U4...

Page 29: ...OR 1405 001177 SA V705 VARISTOR 1405 001177 SA V707 VARISTOR 1405 001177 SA ZD601 DIODE SCHOTTKY 0404 001153 SA ZD603 DIODE TVS 0406 001208 SA ZD604 DIODE TVS 0406 001208 SA ZD606 DIODE TVS 0406 001254 SA ZD700 DIODE TVS 0406 001201 SA ZD702 DIODE TVS 0406 001190 SA ZD703 DIODE TVS 0406 001190 SA ZD704 DIODE TVS 0406 001254 SA Please consult the GSPN website Samsung Portal for the most recent vers...

Page 30: ...SAMSUNG Proprietary Contents may change without notice Main Electrical Parts List 6 16 This Document can not be used without Samsung s authorization ...

Page 31: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 7 Block Diagrams 7 1 7 1 RF Solution Block Diagram ...

Page 32: ...SAMSUNG Proprietary Contents may change without notice Block Diagrams This Document can not be used without Samsung s authorization 7 2 7 2 Base Band Solution Block Diagram ...

Page 33: ...SAMSUNG Proprietary Contents may change without notice 8 PCB Diagrams 8 1 This Document can not be used without Samsung s authorization Top ...

Page 34: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 8 2 This Document can not be used without Samsung s authorization Bottom ...

Page 35: ... consumption Download again Power ON Does not work END Charge the Battery Check the PM401 Check the path of R411 and PM401 Check R411 NO NO NO NO NO YES YES YES YES NO check the TCX100 YES YES Check the initial operation Current consumption 100mA Check Voltage 3 3V Check R411 is High The pin 3 5 6 of PM401 3 3V Check PM401 pin 32 1 375 pin 36 1 8V pin 50 56 2 6V pin 84 2 85V R142 19 2MHz Vpp 500mV...

Page 36: ... VREG_TCXO 77 VDD_SPKR 65 VDD_WLAN VIB_DRV_N 25 12 VREG_5V 39 VREG_MMC VREG_MSMA 56 32 VREG_MSMC 36 VREG_MSME VDD_ANA 54 83 VDD_MAIN 52 VDD_MSM VDD_MSMC 33 VDD_MSME 35 VDD_PA 29 71 VDD_RF VDD_RUIM 41 USB_DAT 20 USB_D_M USB_D_P 18 USB_ID 11 USB_OE_N 13 USB_SE0 19 16 USB_VBUS 48 VBACKUP 6 VBAT 2 VCHG 60 VCOIN 74 78 SPKR_IN_M 76 SPKR_IN_P SPKR_OUT_M 79 75 SPKR_OUT_P 55 TCXO_EN 58 TCXO_IN 53 TCXO_OUT ...

Page 37: ...ion 9 1 2 System Initial Check the clock generation circuit related to U402 and TCX100 Check the PM401 YES NO NO YES YES YES NO NO NO YES Check the Audio part Check the LCD part Check the OSC400 END Sound operation OK LCD Display OK Initial Failure The pin 9 of PM401 Low High Check the Sleep X tal signal s at C426 Check the clock signal s at R142 ...

Page 38: ...t notice Flow Chart of Troubleshooting 9 4 This Document can not be used without Samsung s authorization BBbbBottom TOP C171 R142 R141 C174 C172 VREG_TCXO_2 8V GND 2 OUT 3 4 VCC VCON 1 TCX100 C175 C173 R158 TRK_LO_ADJ RTR6275_TCXO TCXO RFR6275_TCXO ...

Page 39: ... s authorization 9 1 3 SIM Part Check the PM401 UCP300 Please insert SIM card END NO Check the SIM Card Resolder or change CD400 YES Check the PM401 There is any signal pin 13 15 16 of CD400 NO NO YES YES Check SIM s signal when you see SIM checking display Check the CD400 s Connection to SIM card Check the voltage at CD400 pin 11 3 0 ...

Page 40: ... C VREG_SD_2 8V R424 7 4 4 C 8 1 4 R 6 4 4 C VREG_MSMP_2 6V 9 3 4 C 21 NC 22 NC 23 NC 2 SW A SW B 1 15 C3 12 C5 14 C6 C7 16 NC 17 NC 18 19 NC NC 20 3 5 6 4 5 7 8 6 7 9 10 8 C1 11 C2 13 CD400 1 3 4 2 7 3 4 C VREG_USIM_3 0V 6 3 4 C 6 1 4 R 3 4 4 C 4 4 4 C 0 2 4 R 1 2 4 R 0 4 4 C 1 4 4 C USIM_CLK USIM_IO USIM_RST T_FLASH_D 0 T_FLASH_D 1 T_FLASH_D 2 T_FLASH_D 3 T_FLASH_CMD T_FLASH_DETECT T_FLASH_CLK L...

Page 41: ...ment can not be used without Samsung s authorization 9 1 4 Charging Part Check IFC600 s pin 19 20 is around 5V when charging Check the TA Abnormal charging operation END YES NO Check U402 s Pin 3 is LOW when charging YES NO Check the U402 Check U402 s Pin 4 is LOW when charging YES Check the U402 NO ...

Page 42: ...ot be used without Samsung s authorization Schematic for Charging INNER CHARGER R423 VREG_MSMP_2 6V R422 100K C433 R412 VBATT VEXT_5V R425 C435 USB_5V USB_5V 100K _PPR GND GND 8 9 ICDL 6 IMIN USB 2 7 USBON _CHG 4 _EN 5 3 U402 10 BAT CRDL 1 11 C451 C434 CHG_DETECT_N CHG_EN_N CHG_INDICATE Layout for charging IC ...

Page 43: ...without Samsung s authorization 9 1 5 Microphone Part Micro phone does not work Is the assembled status of Microphone O K Reassemble MAIN KEY FPCB Check the DC bias voltage on Mic path Check the path around MIC Bias circuit The microphone is OK Check UCP300 END NO YES NO NO YES YES YES The voltage of R500 is about 1 3V ...

Page 44: ...without notice Flow Chart of Troubleshooting 9 10 This Document can not be used without Samsung s authorization Schematic for Microphone C522 L502 R511 C523 MICBIAS C506 C510 C521 C524 R501 R500 C503 L503 C501 MIC1_N MIC1_P MICP_CON MICN_CON ...

Page 45: ...sed without Samsung s authorization 9 1 6 Speaker Part NO Check the U501 Is there any output signal at U501 YES END There is no sound from speaker Replace the Speaker Check the UCP300 NO The terminal of Speaker is OK Is there any input signal at U501 NO Is there any output signal at U500 Check the U500 NO YES YES YES ...

Page 46: ...amsung s authorization C519 R517 B1 GND B2 C2 IN IN C3 1 C N C N 2 A3 VDD B3 VO A1 VO _SHUT U500 BYP C1 R518 R507 R509 C520 VBATT R506 C509 R519 C502 R510 R504 SPK_N AUXOL AUXOR SPKAMP_EN SPK_P 8 IN2 NC1 5 C N 7 2 1 O N 0 1 NO2 1 C C V U501 3 COM1 9 COM2 6 D N G 4 IN1 C500 R502 C504 C505 VBATT SPK_P EAR1O_P SPK_SEL SPK_N EAR1O_N ...

Page 47: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 13 This Document can not be used without Samsung s authorization ...

Page 48: ... be used without Samsung s authorization 9 1 7 Receiver Part Is the terminal of receiver is ok NO Replace the receiver Is there ny signal at U501 s 5 7 NO Check the U501 There is no sound from receiver YES YES pin 8 of U502 is Low YES END NO Check the UCP300 YES NO Check the UCP300 Are there any signal R502 R505 ...

Page 49: ...hout notice Flow Chart of Troubleshooting 9 15 This Document can not be used without Samsung s authorization 8 IN2 NC1 5 C N 7 2 1 O N 0 1 NO2 1 C C V U501 3 COM1 9 COM2 6 D N G 4 IN1 C500 R502 C504 C505 VBATT SPK_P EAR1O_P SPK_SEL SPK_N EAR1O_N ...

Page 50: ... Samsung s authorization 9 1 8 Headset Part Earphone is not operational Mic is not operational Headset function does not work 1 Check the mic path from earjack to MIC2P MIC2N 2 Check the bias circuit Check the headset device or R610 crack END Check the ear path from earjack to EAR_R EAR_L NO YES YES NO YES NO Check R610 is LOW ...

Page 51: ...ice Flow Chart of Troubleshooting 9 17 This Document can not be used without Samsung s authorization EARPHONE PATH Place near MSM6275 Place near IF connector R516 C514 C517 MICBIAS C515 C511 C525 C526 C518 R513 R515 C516 EARMIC_N EARMIC_P MIC2_P MIC2_N ...

Page 52: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 18 This Document can not be used without Samsung s authorization ...

Page 53: ...ent can not be used without Samsung s authorization 9 1 9 Camera Part Mega and VGA Camera function does not work Check camera FPCB and connector NO Re connect the camera FPCB NO NO YES YES Check the U14 Check U10 U11 YES Replace the New Camera END C42 1 5V C34 1 8V C33 2 8V Check input signals at U14 ...

Page 54: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 20 This Document can not be used without Samsung s authorization ...

Page 55: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 21 This Document can not be used without Samsung s authorization ...

Page 56: ...f you check the tx chain Check the not only RF Device but also resistor inductor and capacitor Continuous RX ON RF Input 60 CH AMP 50dBm Replace PAM101 NORMAL CONDITION Catch the channel YES NO Check L112 55dBm F103 Check Pin 3 55dBm U104 Check Pin 32 33 55dBm Check antenna contact Replace PAM101 F100 Resolder or Change THE END NO NO YES YES YES Check the path from F103 to U104 NO ...

Page 57: ...in Check the not only RF Device but also resistor inductor and capacitor YES YES YES YES YES NO NO NO NO NO RFS100 Check Pin 3 30dBm PAM101 Check Pin 8 30dBm RFS100 Check Pin 2 30dBm PAM101 Check Pin 23 6dBm THE END Resolder or Change RFS100 Check the path from U104 to PAM101 Replace PAM101 Check the U104 Check the path from PAM101 to PAM101 U104 Check Pin 44 2 65V Tx ON Level 5 battery voltage 3 ...

Page 58: ...er If you check the tx chain Check the not only RF Device but also resistor inductor and capacitor NORMAL CONDITION Catch the channel YES NO Check L115 55dBm F103 Check Pin 3 55dBm U104 Check Pin 32 33 55dBm Check antenna contact Replace PAM101 F100 Resolder or Change THE END NO NO YES YES YES Check the path from F103 to U104 NO Continuous RX ON RF Input 60 CH AMP 50dBm ...

Page 59: ...in Check the not only RF Device but also resistor inductor and capacitor YES YES YES YES Tx ON Level 5 battery voltage 3 8V YES NO NO NO NO NO RFS100 Check Pin 3 30dBm PAM101 Check Pin 8 30dBm RFS100 Check Pin 2 30dBm PAM101 Check Pin 23 6dBm THE END Resolder or Change RFS100 Check the path from U104 to PAM101 Replace PAM101 Check the U104 Check the path from PAM101 to PAM101 U104 Check Pin 44 2 6...

Page 60: ...er If you check the tx chain Check the not only RF Device but also resistor inductor and capacitor Continuous RX ON RF Input 698 CH AMP 50dBm NORMAL CONDITION Catch the channel YES NO Check L103 55dBm F102 Check Pin 6 55dBm U104 Check Pin 38 39 55dBm Check antenna contact Replace RFS100 F102 Resolder or Change THE END NO NO YES YES YES Check the path from F102 to U104 NO ...

Page 61: ...ain Check the not only RF Device but also resistor inductor and capacitor YES YES YES YES Tx ON Level 0 battery voltage 3 8V YES NO NO NO NO NO RFS100 Check Pin 3 30dBm PAM101 Check Pin 8 30dBm RFS100 Check Pin 2 30dBm PAM101 Check Pin 21 6dBm THE END Resolder or Change RFS100 Check the path from U104 to PAM101 Replace PAM101 Check the U104 Check the path from PAM101 to PAM101 U104 Check Pin 44 2 ...

Page 62: ...er If you check the tx chain Check the not only RF Device but also resistor inductor and capacitor Continuous RX ON RF Input 698 CH AMP 50dBm NORMAL CONDITION Catch the channel YES NO Check L102 55dBm F102 Check Pin 8 55dBm U104 Check Pin 36 37 55dBm Check antenna contact Replace RFS100 F102 Resolder or Change THE END NO NO YES YES YES Check the path from F102 to U104 NO ...

Page 63: ...ain Check the not only RF Device but also resistor inductor and capacitor YES YES YES YES Tx ON Level 0 battery voltage 3 8V YES NO NO NO NO NO RFS100 Check Pin 3 30dBm PAM101 Check Pin 8 30dBm RFS100 Check Pin 2 30dBm PAM101 Check Pin 23 6dBm THE END Resolder or Change RFS100 Check the path from U104 to PAM101 Replace PAM101 Check the U104 Check the path from PAM101 to PAM101 U104 Check Pin 44 2 ...

Page 64: ...or inductor and capacitor NORMAL CONDITION Catch the channel YES NO Check L130 55dBm U201 Check Pin 26 65dBm Check antenna contack Replace RFS100 Replace PAM201 THE END NO NO YES YES YES Check the path from F203 to U201 F203 Check Pin 5 45dBm F203 Resolder or change NO YES NO Resolder or replace C231 C232 Check U203 U203 check pin 7 freq 19 2MHz C231 C232 65dBm YES YES NO NO Continuous RX ON RF In...

Page 65: ...x chain Check the not only RF Device but also resistor inductor and capacitor YES NO F203 Check Pin 2 22dBm U201 Check Pin 2 22dBm PAM201 Check Pin 8 24dBm F203 Resolder or Change U201 Resolder or Change THE END NO NO YES YES PAM201 Resolder or change NO F201 Resolder or change U104 Resolder or change YES YES NO F201 check pin 1 10dBm U104 check pin 46 10dBm Tx ON RF output 9800 CH OUT PWR 22dBm ...

Page 66: ...or and capacitor Continuous RX ON RF Input 4408 CH AMP 40dBm NORMAL CONDITION Catch the channel YES NO Check L130 55dBm PAM201 Check Pin 10 45dBm U202 Check Pin 26 65dBm Check antenna contack Replace RFS100 Replace PAM201 THE END NO NO YES YES YES Check the path from F204 to U202 F204 Check Pin 5 45dBm F204 Resolder or change NO YES NO Resolder or replace C233 C234 C235 C236 Check U203 U203 check ...

Page 67: ...tx chain Check the not only RF Device but also resistor inductor and capacitor Tx ON RF output 4408 CH OUT PWR 22dBm YES NO F204 Check Pin 2 22dBm U202 Check Pin 2 22dBm PAM201 Check Pin 8 24dBm F204 Resolder or Change U202 Resolder or Change THE END NO NO YES YES PAM201 Resolder or change NO F202 Resolder or change U104 Resolder or change YES YES NO F202 check pin 1 10dBm U104 check pin 46 10dBm ...

Page 68: ...I _ A N L _ B L 4 1 N I _ A N L _ B H 5 1 A D D V 6 1 P Q _ X R 7 1 M Q _ X R 8 1 U203 NC 1 LB_LNA_OUT 10 R217 C238 C241 C245 C259 C233 C243 C222 R211 L222 L204 C205 L214 C216 C213 R213 C231 R219 COUP 1 IN OUT 2 U201 50OHM 3 4 COUP 4 IN 1 2 OUT R205 U202 3 50OHM L220 L201 L213 R214 L205 C247 R216 C214 C254 L223 C206 C207 C202 R212 C235 C209 C263 R204 L212 1 VEN_CELL VEN_PCS 7 VMODE1 3 VMODE2 5 C24...

Page 69: ...Q _ X T 3 5 P Q _ X T 4 5 F E R _ C A D 5 5 C N 6 5 L O R T N O C V 7 5 D N G 3 4 T U O _ 1 B L _ A D 4 4 T U O _ 2 B H _ A D 5 4 A D D V 6 4 T U O _ 1 B H _ A D 7 4 A D D V 8 4 A D D V 9 4 A D D V 5 V_TUNE1 36 GPCS_INP 37 GPCS_INN 38 DCS_INP 39 DCS_INN 4 VDDA 40 PWD_DET_IN 41 VDDA 42 DA_LB2_OUT 29 WLNA_OUT 3 R_BIAS1 30 GCELL_INN 31 GCELL_INP 32 EGSM_INP 33 EGSM_INN 34 WMIX_LNP 35 WMIX_LNN 1 2 T S...

Page 70: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 36 This Document can not be used without Samsung s authorization ...

Page 71: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 37 This Document can not be used without Samsung s authorization ...

Page 72: ...ung s authorization 9 2 13 BLUETOOTH Bluetooth Activation YES NO U302 Check Pin 4 8 is High C124 2 6V L115 is High Check U302 and UCP300 Check U402 THE END NO NO YES YES replace L111 or check U402 NO Check the path form ANT102 to U102 Replace ANT102 YES YES NO Is there any signal pin G1 at U105 Check if there is any crack on BT ant ...

Page 73: ..._3 E9 S S V 1 F S S V 2 F S S V 4 F S S V 5 F TST1 D4 S S V 5 D S S V 6 D PCM_SYNC D8 PCM_OUT D9 RFIO_N E1 S S V 2 E S S V 4 E UART_TXD B8 UART_RXD B9 RFIO_P C1 S S V 2 C UART_CTS_N C8 UART_RTS_N C9 RFTUNE D1 S S V 2 D SCL TX_PU_TDD_N A9 F T D D V 1 B F R D D V 2 B VREG_CTL B3 RST_N B4 BT_WAKE GPIO_0 B5 HOST_WAKE GPIO_1 B6 C D D V 7 B F I D D V 1 A VREG2 A2 VREG1 A3 V 3 R D D V 4 A LPO_IN A5 BT_BU...

Page 74: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting 9 40 This Document can not be used without Samsung s authorization ...

Page 75: ...te z BPSK Binary Phase Shift Keying z CA Conditional Access z CDM Code Division Multiplexing z C I Carrier to Interference z EN European Standard z ES Elementary Stream z ETSI European Telecommunications Standards Institute z MPEG Moving Picture Experts Group z PN Pseudo random Noise z PS Pilot Symbol z QPSK Quadrature Phase Shift Keying z RS Reed Solomon z SI Service Information z TDM Time Divisi...

Page 76: ...SAMSUNG Proprietary Contents may change without notice Reference data 10 2 This Document can not be used without Samsung s authorization ...

Page 77: ...hout Samsung s authorization 11 Disassembly and Assembly Instructions 11 1 Disassembly The work guide to disjoint SET Disjoint REAR 1 Remove the screw caps 2 Remove the RF sheet 3 Remove the screws 4 Disjoint the Rear and remove the side keys 5 Take the key connector apart 6 Take the PBA apart ...

Page 78: ...ocument can not be used without Samsung s authorization The work guide to disjoint SET Disjoint Front 7 Take the Mic apart from the rib The MIC must not be damaged Take the Key Bracket and Keypad apart from the SET 8 The Gasket must not be damaged 9 Remove the screws 10 Detach the MAIN FPCB from the front ...

Page 79: ...is Document can not be used without Samsung s authorization Remove the screws 11 12 Open the Upper Lower with a knife The work guide to disjoint SET Disjoint Upper Detach the Tape from the Lcd 13 Open the main connector and pull the FPCB out 14 15 Open the Subkey connector and pull the Subkey FPCB out ...

Page 80: ...This Document can not be used without Samsung s authorization MOTOR 16 Open the camera connector and separate the camera from the Upper 17 Open the Motor connector Separate the Motor from the upper SPK Open the SPK connector Separate the Camera from the upper 18 19 Take the LCD apart from the Upper ...

Page 81: ...embly Joint the Sub Keypad to the Upper 6 Attach the insulation tape Let the tape be end of the connector 5 Insert the Con to Con and Fold it Follow the guide line 4 Motor 2 Insert the Camera and SPK MOTOR Follow the guide line The work guide to joint SET LCD 1 Camera Insert the Camera and SPK MOTOR Follow the guide line Insert the SUB KEY FPCB Follow the guide line 3 ...

Page 82: ...embly and Assembly Instructions 11 6 This Document can not be used without Samsung s authorization 7 Joint the LCD Ass y to the Upper Put the Con to Con FPCB into the Lower Joint the Lower to the Upper Ass y 8 Joint the Screws 9 The work guide to joint SET Upper ...

Page 83: ... be used without Samsung s authorization 10 11 Put the Guide Rib to the FPCB Guide Hole Attach the FPCB to the Front Fold down the FPCB Follow the guide line Hook the Lower hooker to the Front Joint the screws 12 13 Joint the Keypad 13 Joint the Key Bracket Match the mic and front hole The work guide to joint SET Front ...

Page 84: ...ly Instructions 11 8 This Document can not be used without Samsung s authorization Joint the FPCB connector to the PBA 14 The work guide to joint SET SET Joint the Key connector to the PBA 15 Joint the Side Keys 16 17 Assemble the Rear and joint the screws 18 Attach the RF sheet ...

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Samsung SGH SGH-A737, Service Manual

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