Samsung SGH-X520 Service Manual Download Page 48 | Manualshive

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Flow Chart of Troubleshooting

9-12

9-2. RF

9-2-1. GSM Rx

Normal condition

catch the channel ?

Check U401

pin 12

≥

-65

dbm ?

Check U400

pin 21,22

≥

-

65dBm ?

Yes

No

No

Check U401

pin 16

≥

-65 dbm

?

Yes

No

Yes

Check ANT,

C403, C402, C405, R406

Resolder or change

RFS400, L405, L403, C404, L402

Resolder or change

U401

Resolder or change

F401, C409, C412, L407

Resolder or change

UCP200

CONTINOUS RX ON

RF INPUT : 62CH

AMP : -50dbm

Check U400

pin 13 = 2.9V

Yes

Resolder or change

U100

Yes

No

No

1

2

3

4

5

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Summary of Contents for SGH-X520

Page 1: ...HONE CONTENTS 1 Safety 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 ...

Page 2: ... 2 GSM TX power Level 2 2 3 Product Function 4 Array course control 4 1 Downloading Binary Files 4 2 4 2 Pre requsite for Downloading 4 2 4 3 S W Downloader Program 4 3 5 Exploded View and Parts list 5 1 Cellular phone Exploded View 5 1 5 2 Cellular phone Parts list 5 2 5 3 Disassembly 5 4 5 4 Assembly 5 6 6 MAIN Electrical Parts List 7 Block Diagrams 8 PCB Diagrams ...

Page 3: ... 9 4 9 1 3 SIM Part 9 6 9 1 4 Microphone Part 9 7 9 1 5 Speaker Part_1 MP3 SPEAKER PHONE 9 8 9 1 6 Speaker Part_2 RECEIVER 9 10 9 1 7 Charging Part 9 11 9 2 RF 9 13 9 2 1 EGSM RX 9 13 9 2 2 DCS RX 9 15 9 2 3 PCS RX 9 16 9 2 4 EGSM TX 9 17 9 2 5 DCS TX 9 18 9 2 6 PCS TX 9 19 10 Reference data ...

Page 4: ...orn 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 an...

Page 5: ...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 6: ...5 MHz 80 MHz Mod Bit rate Bit Period 270 833 kbps 3 692 us 270 833 kbps 3 692 us 270 833 kbps 3 692 us 270 833 kbps 3 692 us Time Slot Period Frame Period 576 9 us 4 615 ms 576 9 us 4 615 ms 576 9 us 4 615 ms 576 9 us 4 615 ms Modulation 0 3GMSK 0 3 GMSK 0 3 GMSK 0 3 GMSK MS Power 33 dBm 13 dBm 33 dBm 5 dBm 30 dBm 0 dBm 30 dBm 0 dBm Power Class 5 pcl 15 pcl 5 pcl 19 pcl 0 pcl 15 pcl 0 pcl 15 pcl S...

Page 7: ...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 dBm 10 10 4 dBm 11 8 4 dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level PCS1900 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 4 dBm 12 6 4 dBm 13...

Page 8: ...ietary Contents may change without notice 3 Product Function 3 1 This Document can not be used without Samsung s authorization Main Function Camera Web browser File viewer Java Multimedia Message Service MMS E mail ...

Page 9: ...G Proprietary Contents may change without notice 4 Array course control 4 1 This Document can not be used without Samsung s authorization Test Jig GH80 00865A Test Cable GH39 00127A RF Test Cable GH39 00397A ...

Page 10: ... control 4 2 This Document can not be used without Samsung s authorization 4 1 Downloading Binary Files 1 Swift Model firmware is composed of 2 files s3 Main source code binary 4 2 Prerequisite Downloader program Optiflash exe X520 Moblie Phone Data Cable Binary Files ...

Page 11: ...ithout Samsung s authorization 4 3 S W Downloader Program 1 Load the binary download program by execution the OptiFlash exe 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 ...

Page 12: ...horization 3 Select the COM port where the download cable is connected Only COM1 is supported Additionally you can select the maximum transfer speed OptiFlash will use to communicate with the phone 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 ...

Page 13: ...This Document can not be used without Samsung s authorization 4 Select the Flash Verify Browse Set the directory path and choose the latest S W binary for example gsmstack s3 for the downloader binary setting And Check Reserved Memory Regions 0x00008000 0x0001ffff 5 1st Press Flash ...

Page 14: ... mobile 6 When downloading is finished successfully there is a All is well message 7 After finishing downloading Certain memory resets should be done to guarantee the normal performance 8 Confirm the downloaded version name by key string 1234 Memory reset will be done by pressing the following key strings Full Reset 2767 3855 will reboot the phone automatically ...

Page 15: ...Parts List 5 1 This Document can not be used without Samsung s authorization 5 1 Cellular phone Exploded View QFR01 QKP01 QMP01 QRE01 QVO01 QME01 QBA01 QCR05 QBA00 QRF03 QCA01 QME03 QMW01 QFU01 QLC01 QFL01 QSP01 QMO01 QHI01 QIF01 QCR05 QAN02 QAN02 QRF01 QMI03 QMI04 QSC05 QIF02 ...

Page 16: ...2 NPR COVER CONNECTOR GH71 06926A QKP01 ASSY KEYPAD SER PB GH98 02713A QLC01 ELA UNIT SGHX520 LCD MODULE GH96 02262A QME01 UNIT DOME SHEET GH59 03654A QME03 PCB CON TO CON GH41 01412A QMI03 RMO HOLDER MIC GH73 08172A QMI04 RMO RUBBER HOLDER MIC CAP GH73 08395A QMO01 MOTOR DC SGHX520 GH31 00284A QMP01 PBA MAIN SGHX520 PBA MAIN GH92 02983A QMW01 PMO COVER WINDOW LCD MAIN GH72 33611A QRE01 ASSY CASE ...

Page 17: ... WATER SOAK GH68 02026A MANUAL SFC GH68 04336A LABEL P BARCODE RUSSIA GH68 08494A MANUAL USERS EU RUSSIAN GH68 12629A LABEL R MAIN SER GH68 12712B BOX P UNIT MAIN SER GH69 04539B MPR REMOVE TAPE LCD GH74 13804A MPR TAPE LED GH74 17926A MPR BOHO VINYL LCD GH74 19127A MPR TAPE FRONT FPCB MASKING GH74 26099A MPR TAPE COVER WINDOW LCD MAIN GH74 26134A MPR TAPE 24 3X3XT0 05 TESA4965 GH74 26547A MPR TAP...

Page 18: ...NLOCK THE HOOK OF REAR CASE WITH A TOOL caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON THE CASE 1 DETACH THE LCD CONNECTOR caution 1 BE CAREFUL NOT TO DAMAGE THE LCD CONNECTOR 1 SEPERATE IF COVER WITH TWEEZERS 2 SEPERATE THE IF COVER FROM THE REAR CASE caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON CASE 1 RELEASE SCREWS IN RED CIRCLES caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON CASE ...

Page 19: ... FRONT CASE caution 1 BE CAREFUL NOT TO TEAR LCD FPCB 1 REMOVE SCREW CAPS IN RED CIRCLES 2 SEPERATE SCREWS IN RED CIRCLES caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON CASE 1 OPEN THE EARCOVER 2 SEPERATE THE PBA FROM THE FRONT CASE WITH TWEEZERS caution 1 BE CAREFUL NOT TO DAMAGE THE PARTS OF PBA 1 REMOVE THE TAPE IN RED CIRCLE 2 PRESS THE HOOK WITH TWEEZERS caution 1 When you use a screwdriver Be c...

Page 20: ...aution 1 BE CAREFUL NOT TO MAKE SCRATCH ON CASE 1 REMOVE THE TAPE IN THE RED SQUARE 2 OPEN THE CONNECTOR 3 SEPERATE THE FPCB WITH TWEEZERS caution 1 BE CAREFUL NOT TO DAMAGE THE CONNECTOR 2 BE CAREFUL NOT TO TEAR THE FPCB 1 2 3 12 11 1 SEPERATE THE MOTOR WITH TWEEZERS 2 SEPERATE THE SPEAKER WITH WEEZWERS caution 1 BE CAREFUL NOT TO DAMAGE THE SPEAKER 1 SEPERATE THE LCD FPCB FROM FOLDER LOWER cauti...

Page 21: ...ed View and Parts List 5 7 This Document can not be used without Samsung s authorization 13 1 REMOVE LEAD OF FIXED METAL OF THE LCD CONNECTOR 2 SEPERATE THE LCD CONNECTOR caution 1 BE CAREFUL NOT TO DAMAGE THE PARTS OF LCD 2 BE CAREFUL NOT TO DAMAGE LCD CONNECTOR ...

Page 22: ... THE ALIEN SUBSTANCE OR DUST 2 BE CAREFUL NOT TO TEAR THE CAMERA FPCB 1 ASSEMBLE THE FOLDER UPPER STARTING AT THE UPPER HOOK 2 LOCK THE HOOK BY PRESSSING THE SECTIONS POINTED BY RED ARROWS WITH SUITABLE FORCE caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON CASE 1 FIX THE LCD CONNECTOR 1 SOLDER THE METAL TO FIX LCD CONNECTOR caution 1 BE CAREFUL NOT TO DAMAGE THE PARTS OF LCD 2 BE CAREFUL NOT TO DAMAGE...

Page 23: ...ONT CASE 2 TO ASSEMBLE FOLDER INTO FRONT CASE PUT THE FOLDER CASE ON THE FRONT CASE AND THEN PRESS THE HINGE caution 1 BE CAREFUL NOT TO TEAR THE LCD FPCB 2 BE CAREFUL NOT TO MAKE SCRATCH ON THE CASE 1 ASSEMBLE THE PBA STARTING AT THE EARJACK SECTION 2 FIXED THE LCD CONNECTOR caution 1 BE CAREFUL NOT TO DAMAGE THE PARTS OF PBA 2 BE CAREFUL NOT TO MAKE SCRATCH ON THE CASE 1 ASSEMBLE THE REAR CASE S...

Page 24: ...ay change without notice Exploded View and Parts List 5 10 This Document can not be used without Samsung s authorization 9 1 ASSEMBLE THE IF COVER INTO THE REAR CASE WITH TWEEZERS caution 1 BE CAREFUL NOT TO MAKE SCRATCH ON THE CASE ...

Page 25: ...PHOTO IRDA SA 0801 002529 U101 IC CMOS LOGIC SA 1001 001358 U300 IC ANALOG MULTIPLEX SA 1009 001020 U203 IC HALL EFFECT S W SA 1108 000010 UME200 IC MCP SA 1201 002278 U401 IC POWER AMP SA 1201 002356 U403 IC AUDIO AMP SA 1203 003304 U100 IC POWER SUPERVISOR SA 1203 003663 U105 IC BATTERY SA 1204 002161 U104 IC MELODY SA 1204 002688 U402 IC DEMODULATOR SA 1205 002683 U400 IC TRANSCEIVER SA 1209 00...

Page 26: ...148 R340 R CHIP SA 2007 000149 R114 R CHIP SA 2007 000157 R125 R CHIP SA 2007 000157 R202 R CHIP SA 2007 000157 R320 R CHIP SA 2007 000161 R327 R CHIP SA 2007 000161 R329 R CHIP SA 2007 000161 R339 R CHIP SA 2007 000161 R341 R CHIP SA 2007 000162 R115 R CHIP SA 2007 000162 R120 R CHIP SA 2007 000162 R204 R CHIP SA 2007 000162 R368 R CHIP SA 2007 000164 R116 R CHIP SA 2007 000170 R111 R CHIP SA 200...

Page 27: ...R404 R CHIP SA 2007 001325 R121 R CHIP SA 2007 001325 R410 R CHIP SA 2007 002797 R402 R CHIP SA 2007 002965 R345 R CHIP SA 2007 002965 R369 R CHIP SA 2007 003001 R408 R CHIP SA 2007 007573 R203 R CHIP SA 2007 007573 R207 R CHIP SA 2007 008052 R128 R CHIP SA 2007 008052 R129 R CHIP SA 2007 008055 R206 R CHIP SA 2007 008055 R409 R CHIP SA 2007 008137 R122 R CHIP SA 2007 008516 R400 R CHIP SA 2007 00...

Page 28: ...0254 C206 C CER CHIP SA 2203 000254 C208 C CER CHIP SA 2203 000254 C209 C CER CHIP SA 2203 000254 C211 C CER CHIP SA 2203 000278 C135 C CER CHIP SA 2203 000330 C215 C CER CHIP SA 2203 000330 C217 C CER CHIP SA 2203 000386 C362 C CER CHIP SA 2203 000386 C363 C CER CHIP SA 2203 000386 C368 C CER CHIP SA 2203 000386 C425 C CER CHIP SA 2203 000425 C143 C CER CHIP SA 2203 000425 C144 C CER CHIP SA 2203...

Page 29: ...5682 C304 C CER CHIP SA 2203 005682 C307 C CER CHIP SA 2203 005682 C308 C CER CHIP SA 2203 005682 C309 C CER CHIP SA 2203 005682 C310 C CER CHIP SA 2203 005682 C312 C CER CHIP SA 2203 005682 C314 C CER CHIP SA 2203 005682 C315 C CER CHIP SA 2203 005682 C316 C CER CHIP SA 2203 005682 C376 C CER CHIP SA 2203 005682 C377 C CER CHIP SA 2203 005682 C378 C CER CHIP SA 2203 005682 C379 C CER CHIP SA 2203...

Page 30: ...6048 C203 C CER CHIP SA 2203 006048 C210 C CER CHIP SA 2203 006048 C213 C CER CHIP SA 2203 006048 C214 C CER CHIP SA 2203 006048 C302 C CER CHIP SA 2203 006048 C321 C CER CHIP SA 2203 006048 C380 C CER CHIP SA 2203 006048 C381 C CER CHIP SA 2203 006048 C434 C CER CHIP SA 2203 006048 C447 C CER CHIP SA 2203 006048 C449 C CER CHIP SA 2203 006194 C400 C CER CHIP SA 2203 006194 C426 C CER CHIP SA 2203...

Page 31: ...6556 C318 C CER CHIP SA 2203 006556 C319 C CER CHIP SA 2203 006556 C333 C CER CHIP SA 2203 006556 C334 C CER CHIP SA 2203 006556 C335 C CER CHIP SA 2203 006556 C337 C CER CHIP SA 2203 006556 C338 C CER CHIP SA 2203 006556 C371 C CER CHIP SA 2203 006556 C372 C CER CHIP SA 2203 006556 C373 C CER CHIP SA 2203 006556 C406 C CER CHIP SA 2203 006556 C408 C CER CHIP SA 2203 006562 C139 C CER CHIP SA 2203...

Page 32: ...R SMD SA 2703 002484 L409 INDUCTOR SMD SA 2703 002485 L407 INDUCTOR SMD SA 2703 002558 L401 INDUCTOR SMD SA 2703 002603 L408 INDUCTOR SMD SA 2703 002842 L402 INDUCTOR SMD SA 2703 002842 L403 INDUCTOR SMD SA 2703 002910 L410 INDUCTOR SMD SA 2703 002989 L411 INDUCTOR SMD SA 2801 003856 OSC200 CRYSTAL SMD SA 2801 004573 OSC100 CRYSTAL SMD SA 2801 004587 OSC400 CRYSTAL SMD SA 2904 001592 F401 FILTER S...

Page 33: ...3710 001611 IFC300 CONNECTOR INTERFACE SA 3711 006141 HDC300 HEADER BOARD TO BOARD SA 3711 006228 BTC300 HEADER BATTERY SA 3722 002257 EAR301 JACK PHONE SA 4302 001130 BAT100 BATTERY LI 2ND SA GH09 00036A UCP200 IC MICOM SGHX480 SA GH13 00036A U102 IC ASIC SGHX670 SA GH30 00296A MIC300 MICROPHONE ASSY SA GH71 05666A ANT400 NPR ANTENNA CONTACT SA GH71 05666A ANT401 NPR ANTENNA CONTACT SA ...

Page 34: ...SAMSUNG Proprietary Contents may change without notice 7 Block Diagrams 7 1 This Document can not be used without Samsung s authorization ...

Page 35: ...2 G3 G4 GND GND1 0 0 3 C D H IFC300 0 0 3 D R I JIG_ON MIC300 0 0 1 C S O 0 0 2 C S O OSC400 RAMEN RFS400 ROMEN1 RST R_INT SDS_RXD SDS_TXD SIM100 TA153 TA160 1 0 3 A T TA304 TA340 0 0 4 A T 1 0 4 A T 2 0 3 C A T 1 0 3 C A T TP200 0 0 1 R T 0 0 1 U 1 0 1 U 2 0 1 U U104 U105 1 0 2 U 0 0 3 U U400 1 0 4 U 2 0 4 U U403 UCP200 UME200 VBAT VCCD_1 8V VR300 VR301 VR302 VR313 VR314 VR315 VR316 VR317 ZD300 1...

Page 36: ...ms 8 2 This Document can not be used without Samsung s authorization 0 1 2 3 4 5 6 7 8 9 A 1 A 2 CLEAR CLK_32K CP_OEN CP_WEN D 0 DOWN I 1 0 3 D E L 2 0 3 D E L 3 0 3 D E L T F E L MENU MV3017_CS MV3017_INT PWR PWR_KEEP T H G I R R_EN SEND SHARP STO U203 UP 5 0 3 D Z ...

Page 37: ...s Yes END Yes Check the Initial Operation Yes Charge the battery No Check the Voltage of the Battery 3 3V Download again No Check the pin C145 C146 C148 C149 is 2 9V Check Power On with jig box key No check END KEY of keypad Yes 1 Check the clock signal at pin 4 of OSC400 Freq 26Mhz Vrms 300mV No Check the clock generation circuit OSC400 Yes 2 ...

Page 38: ... F15 VIB_DRV K11 UP_CLK N9 UP_IO P10 UP_RST R10 VACC F14 SCLK_PSC L8 M7 SDI_PSC SDO_PSC N7 SIM_CLK K14 SIM_IO J11 SIM_RST RING_DRV F13 LED1_DRV G13 LED2_DRV G12 K8 CSN_PSC C149 C146 1 2 BAT100 VCCD_2 9V C150 C151 C148 R112 VRTC_3V VCCB_2 9V VCCD_1 8V C147 VRF_2 9V C145 BAND_SEL1 SIM_CLK UP_SDO UP_SCLK UP_CS BAND_SEL2 UP_SDI SIMCLK SIMDATA SIMRST SIM_RST SIM_IO VSIM KEY_BL1 VIB_DRV ...

Page 39: ...of UCP200 is LOW Check UCP200 No Yes Yes END Yes Check the Initial Operation Yes Check R403 C430 No check the pin CKI of UCP200 is 13Mhz Check the clock signal at pin 3 of OSC400 Freq 26Mhz No check OSC400 1 Check the pin 9 of U400 is HIGH and pin 11 13 is 2 9V No Check U400 Yes 2 3 4 ...

Page 40: ...IEN 21 RFIEP 18 RFIPN 17 RFIPP 16 H O F R 7 BIP 4 BQN 5 BQP D N G 14 33 D N G C N 34 C N 35 24 RFIAN U400 27 C F A BIN 6 VCCD_2 9V R401 C428 C427 C429 C406 C426 OSC400 GND1 2 4 GND2 1 HOT HOT 3 VRF_2 9V SERDAT XOENA 13M_OUT RF_EN SERLE DPCS_PAM_IN GSM_PAM_IN AFC RTXIN RTXIP RTXQN RTXQP DCS_LNA_IN_N DCS_LNA_IN_P GSM_LNA_IN_N GSM_LNA_IN_P PCS_LNA_IN_N PCS_LNA_IN_P SERCLK R404 R402 C430 R403 R405 C42...

Page 41: ... P7 DB 8 DB 9 N7 N4 INT 0 R12 IO7 IOBIT 1 K11 M8 DB 11 DB 12 U11 T11 DB 13 R11 DB 14 DB 15 P10 U7 AB 5 AB 6 R14 AB 7 T14 T17 AB 8 7 1 F I K C G15 CKO DB 10 N8 U13 AB 0 AB 1 M10 R13 AB 2 N11 AB 3 AB 4 P11 P12 CHG_OFF TR_RST VREF DSP_RWN DSP_INT TR_RST CLK13M_TR DSP_IO DSP_AB 6 DSP_AB 5 DSP_AB 4 DSP_AB 3 DSP_AB 2 DSP_AB 1 DSP_AB 0 DSP_AB 8 DSP_AB 8 0 DSP_AB 7 DSP_DB 15 0 DSP_DB 4 DSP_DB 5 DSP_DB 6 D...

Page 42: ...n the LCD Is there any signal pin 2 3 4 of SIM100 Check the U100 Check the UCP200 U100 END No Yes No Yes 1 2 Check the SIM Card The voltage is 2 8V at the pin 1 of SIM100 1 2 C134 C132 C135 G 8 G 9 G G 10 1 1 2 2 3 3 4 4 5 5 6 6 7 SIM100 C136 C133 SIM_IO SIM_RST VSIM SIM_CLK ...

Page 43: ...s not work Resolder microphone END No Yes Yes Check the reference voltage on mic path R337 2 0V Yes Check R339 R341 R338 R340 C380 C381 R337 C363 TA304 R332 C362 No Is microphone OK Yes Check U100 No 1 2 R337 VCCA_2 9V R338 R332 C380 C381 R340 R336 C317 C362 2 0 3 R V R341 0 0 3 C I M R339 1 0 3 R V C363 TA304 MICOUTP MICINP MICINN MICOUTN ...

Page 44: ...Flow Chart of Troubleshooting 9 8 1 1 2 ...

Page 45: ...Check the connection status of LCD connector HEA101 There is no sound from speaker Are there any signal at the speaker pad on LCD PCB reconnect HDC300 Replace the speaker module END No Yes No No Yes Check R369 R345 of U300 Voltage is 1V 1 Yes Check U100 2 ...

Page 46: ...Flow Chart of Troubleshooting 9 10 1 2 ...

Page 47: ...ooting 9 11 9 1 6 LCD backlight Backlight ON TIME mode in the menu Backlight does not work Check conecting between PBA and LCD conector Select backlight 15 sec mode Check FPCB END No Yes No Check the R9 on the LCD PCB Yes Yes ...

Page 48: ...1 22 65dBm Yes No No Check U401 pin 16 65 dbm Yes No Yes Check ANT C403 C402 C405 R406 Resolder or change RFS400 L405 L403 C404 L402 Resolder or change U401 Resolder or change F401 C409 C412 L407 Resolder or change UCP200 CONTINOUS RX ON RF INPUT 62CH AMP 50dbm Check U400 pin 13 2 9V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 49: ...Flow Chart of Troubleshooting 9 13 1 2 3 4 ...

Page 50: ... 65dBm Yes No No Check U401 pin 18 65 dbm Yes No Yes Check ANT C403 C402 C405 R406 Resolder or change RFS400 L405 L403 C404 L402 Resolder or change U400 Resolder or change F402 C421 C422 L408 Resolder or change UCP200 CONTINOUS RX ON RF INPUT 698CH AMP 50dbm Check U400 pin 13 2 9V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 51: ...Flow Chart of Troubleshooting 9 15 5 2 1 3 4 ...

Page 52: ... 65dBm Yes No No Check U101 pin 20 65 dbm Yes No Yes Check ANT C403 C402 C405 R406 Resolder or change RFS400 L405 L403 C404 L402 Resolder or change U401 Resolder or change F403 C423 C424 L409 Resolder or change UCP200 CONTINOUS RX ON RF INPUT 660CH AMP 50dbm Check U100 pin 13 2 9V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 53: ...Flow Chart of Troubleshooting 9 17 4 3 2 1 ...

Page 54: ...X4 2 1 V 7 VBATT 4 VBS1 5 VBS2 10 1 C C V 1 DCS PCSIN 3 1 1 D N G 5 1 2 D N G 3 D N G 7 1 9 1 4 D N G 1 2 5 D N G 11 GSM850 900TXIN 20 RX1 U401 12 ANT L403 C416 C403 A 2 3 C 1 G 4 G RFS400 C422 C405 C423 VBAT 5 G IN 1 3 OUT OUT 4 C417 F402 2 G C408 C414 R400 C400 C420 L401 L408 C421 C419 F403 2 G 5 G IN 1 3 OUT OUT 4 GSM_LNA_IN_N GSM_LNA_IN_P DCS_LNA_IN_P DCS_LNA_IN_N PCS_LNA_IN_P PCS_LNA_IN_N GSM...

Page 55: ...LEV 10dBm ATT 20dB Check U400 pin 6 2 8V U401 pin 1 about 4 5dbm No Check U400 pin 16 about 2 3 dbm No Check and change U100 UCP200 Yes No Yes Yes U400 check change No Battery U100 check change Yes No U400 check Yes No Yes No U100 check Yes U401 change or resolder U400 pin 12 13 28 29 2 9V No U100 change or resolder Yes U400 change or resolder U401 pin 7 3 7V U401 pin 8 1 2V U401 pin 12 about 5dbm...

Page 56: ...z VBW 100KHz SPAN 10MHz REF LEV 10dBm ATT 20dB U401 pin 11 about 4 5dbm Yes No Yes U401 pin 7 3 7V U400 check change No Battery U100 check change Yes U401 pin 8 1 2V No U400 check Yes U401 pin 6 3V No U100 check U400 pin 12 13 28 29 2 9V U401 change or resolder U100 change or resolder No Yes U400 change or resolder Yes U401 pin 12 about 5dbm No Yes No 1 2 3 4 5 6 7 8 1 3 2 2 4 5 6 7 8 Check U400 p...

Page 57: ...PSK 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 Di...

Page 58: ...is Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law Samsung Electronics Co Ltd 2006 11 Rev 1 0 ⓒ ...

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