Samsung SGH-X640 service manual - Provinspc
Contents
1. O gt INV p SLY 02 ang 3Md MOL SIL OGL Ssl BON JON ld ow 9 lt A 5 2 U400 5 0102 0103 3 __ S eon ra F102 F101 F100 OE FPR osco E z S BAT400 0306 1200 L 5 100 0700 0610 6 U302 Bri U300 m sF705 F704 F703 e A I 603 ITI lt 0502 E c z J gt gt gt S2. Desi gn LOC SEC R317 2007 000140 R318 2007 007100 R319 2007 000139 R400 2007 000148 R401 2007 007100 R402 2007 001325 R403 2007 000171 R450 2007 000171 R500 2007 000162 R501 2007 000162 R507 2007 007573 R508 2007 000162 R509 2007 007334 R511 2007 007317 R512 2007 007588 R600 2007 000162 R601 2007 000140 R603 2007 000148 R605 2007 000242 R606 2007 001308 R607 2007 000148 R608 2007 007334 R610 2007 007334 R611 2007 002796 R612 2007 000171 R613 2007 000171 R614 2007 007981 R615 2007 007489 R700 2007 000143 R701 2007 000143 R703 2007 000174 R704 2007 000174 R705 2007 000174 R706 2007 000174 R707 2007 000174 R708 2007 000174 R709 2007 000174 4 4 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Parts List Desi gn LOC SEC R710 2007 000174 R711 2007 000174 R712 2007 000174 R713 2007 000174 R714 2007 000174 R715 2007 000174 R716 2007 000174 R719 2007 008672 SVBOO 3404 001152 SV600 1009 001018 SW O0 3404 001152 lt 701 3404 001152 TH200 1404 001221 100 1205 002327 102 1201 002174 2909 001246 00 1205 002607 W201 0801 0
3. Power On A zaon ae senz Av 49 90A Sah Suc MFG sone GOA oM SON Ge uem E xim sez amar E uy NAS 20 sone 528 sane ET Svid om wNoIS umo IN GGA zaan vane A ddns ieu m EE SS SS B amp g al bob Ba 5 zig Bas 55251545 m gt ORG ita ae Addns emod Ju 888 T B B fon 8 8 8 20 5 5 5 2 cory at 49 44 ewm vea lar sung oos 5 OOMMW NOSSAH 8 63 HINAS NOd duo uo 9 dOSSAH Kaans 5 83 88 van lt I area or
4. Check U100 10 22 28 gt 2 7V pin20 gt 4 0V Check amp Resolder RF PSU Part gt Check amp Resolder U100 RF26MHz part R100 R101 R116 R117 R119 R121 gt 1V ves Check U200 7 17 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 13 GSM Transmitter TX ON 5Level U103 Pin7 Yes gt 20dBm ne 9103 11 Yes e eet No No 0102 pin48 Yes gt 3dBm m OSC101 1 gt 6d 0100 pin6 7 8 9 gt 500mV je Check U200 END Resolder 100 C144 Check U103 2 68V 2 8 L No Resolder L113 L114 C151 Check U102 VBATT pin42 43 OK Yes Change or Resolder U100 gt Check ANT Switch control circuit Resolder or Change U102 or check PAM control signal Resolder R123 x Check Check amp Resolder RF PSU Part 7 18 Resolder U100 or check Txcpo R114 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 14 DCS Receiver
5. LED703 LED702 Or gt E Ba SW600 0B ZD701 C E E sor e sow IGIT7 6 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 7 Chart of Troubleshooting 1 Power On Power does not work E Check the Battery Voltage is more than 3 4V Check the Clock at R401 32KHZ No Check for the clock at C126 13MHz Yes Check the initial operation Yes END 7 1 Change the Battery Check the PMU related to V_ISUP Resolder X400 Check the VDD1 circuit Check the VDD2 VDD3 circuit Check the clock generation circuit related to U100 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting
6. x 0 300 2 E 3 F702F 700 2 I SW701 SW700 8 6 1 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Diagrams 2 Main PCB Bottom Diagram
7. 1 Cellular phone Exploded View QFU01 QLC01 QCK01 QSP01 QMOO1 gt QCA01 QMI03 Ly gt NM s EE QFLO1 QCR17 1 QSCOB QMEO1 QMWO02 QCRO8 2 QREO1 QRFO1 QIFO1 QCR 1 QBAO1 3 1 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Exploded view Part list 2 Cellular phone Parts list sue Description SEC CODE Remark QFUO1 FOLDER UPPER GH75 06199A QLCO1 LCD 7 00653A 1 GH41 00774A QSPO1 SPEAKER 3001 001731 01 MOTOR DC 3101 001401 1 UNIT CAMERA GH59 01472A QFLO1 FOLDER LOWER GH75 06200A QSC05 SCREW SHEET R GH74 08872A QSC08 SCREW SHEET L GH74 08873A QCR17 SCREW MACHINE 6001 001639 QMWO02 WINDOW MAIN GH72 19197A QFRO1 FRONT COVER GH75 06331A QRFO3 EAR COVER GH72 19199A OMIO3 MIC RUBBER GH73 04064A QCKO01 CAMERA KEY GH75 06567A 01 VOLKEY ASSY GH75 06566A QKPO1 KEYPAD GH75 06201A 1 92 02030 1 UNIT METAL DOME GH5
8. eL SAMSUNG Anycall SGH X640 SERVICE SAMSUNG Anycall CONTENTS specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting T Oo F WON gt ELECTRONICS This Service Manual is a property of Samsung Electronics Co Ltd Samsung Electronics Co Ltd March 2005 Any unauthorized use of Manual can be punished under applicable printed in Korea International and or domestic law Code GH68 06819A BASIC 1 Specification 1 GSM General Specification GSM900 EGSM 900 DCS1800 PC1900 Phase 1 Phase 2 Phase 1 Phase 1 Freq Band MHz 890 915 880 915 1710 1785 1850 1910 Uplink Downlink 935 960 925 960 1805 1880 1930 1990 0 124 amp ARFCN range 1 124 975 1023 512 885 512 810 spacing 45MHz 45MHz 95MHz 80MHz Mod Bit rate 270 833kbps 270 833kbps 270 833kbps 270 833kbps Bit Period 3 692us 3 692us 3 692us 3 692us Time Slot 576 9us 576 9us 576 9us 576 9us Period Frame Period 4 615ms 4 615ms 4 615ms 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 13dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class Spel 15pcl Spel 19pcl Opel 15 1 15 Sensitivity 102dBm 102dBm 100dBm 100dBm TDMA Mux 8 8 8 8 Cell Radius 35Km 35Km 2Km 2Km 1 1 SAMSUNG Proprietary Contents may change without notice This Do
9. 000995 142 2203 000254 C105 2203 005138 a44 2203 000812 C106 2203 000359 145 2203 000233 107 2203 000836 146 2203 000233 108 2203 005482 Cl47 2203 001385 C109 2203 000812 a48 2203 000311 2203 001101 149 2203 000585 au 2203 000854 a50 2203 002443 a12 2203 000812 a51 2203 005053 2203 005057 152 2203 000438 a4 2203 005482 C153 2203 001153 C115 2203 000812 C155 2203 000438 C116 2203 000854 C156 2203 000438 a17 2203 000812 C200 2203 005061 a18 2203 005496 202 2203 005482 a19 2203 000438 C203 2203 005061 C20 2203 000438 C204 2203 000679 21 2203 000278 205 2203 000995 122 2203 005496 C206 2203 000254 a23 2203 000233 207 2203 005482 124 2203 000278 C208 2203 000254 a25 2203 006053 C209 2203 005482 a26 2203 000254 C210 2203 005482 127 2203 005482 C 2203 005482 a28 2203 005057 212 2203 005482 129 2203 005057 C300 2203 000233 C130 2203 005482 C301 2203 000679 C31 2203 000233 C302 2203 005061 a 2203 001153 C303 2203 000438 C133 2203 000604 C304 2203 005061 C134 2203 000854 C305 2203 005496 C135 2203 000278 C306 2203 006208 4 1 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Parts List Desi gn LOC SEC C307 2203 005061 C3
10. 8 1 1 o 2 2229 4 1 222282222222 5 6665665565666 P mi ATA E 6 5 2 g 8 a H 5 SN a amp Sparsoatog IN 2 i i N 2 i i Spaisoazo _ ANN lee 2 9 on I 8 8 5 5 9 8 8 Livan 5 E d 1109 5 E 10055 EUM F J m ON lo 485229 2 k R 8 ON E e 2 8 wsozog 8 ee ON 8 gt Je m 2 of 9s 9 5 5 Bg D 6 28 2 amp gs S e le 8 LESS S h f 2 180 HE 5 5 8 E l 8 J 2 az 88 38 g iz i 8 F 5 3 8 L 5 g ii uu A A fae 8 PEG C 8 pw 8 o Y i 2 n E gt 8 H 3 He 1 8 AME d us 2 EET meno eni y H 8 2 E vog 4 8 3 sumo s 3 S ww Py oons oox TEN 3 3 9 8 s TE 3 H H cc IA EM 4 im ERA T HHH m E 8 L 8 E 8 E i 5 8 1 8 i Wy P m 5 a IH 9 8 2 8 8 2 8 ag 8 2 8 aR 2 8 Eb Pop 2 2 EFE 2 8 Lei 8 422 1 14 03 T Seg 8 i Sjo 2 1 5190 EH 2 2885 4 E i Y H 1 8 E IEF PA E 8 z a R 8 gt Aw A AMA A A 5 es 2 4335 2 T EEEE 8 8 8328 5 IR RR 3
11. No Check VBATT 05 101 pin5 Resolder R124 R125 R126 Check 0100 0103 pin6 7 8 9 Check amp Resolder gt 500mV pind gt 4 0V pin22 28 gt 2 7V RF PSU Part Yes gt Resolder 0100 114 0200 7 20 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting EN A A 41 x 8 g i 0 B fale s
12. RX ON RF input CH center freq Amp 50dBm No Resolder CN100 C144 U103 Pin7 gt 65dBm Check U103 Check ANT Switch L pin L control circuit gt Resoder 9103 F102 Resolder F102 C116 L107 gt 70dBm 9100 pin38 gt 70dBm gt Resolder C115 C117 L106 pin39 gt 70dBm lt 100 10 22 28 gt 2 7V 20 gt 4 0V art Check amp Resolder gt 0100 RF26MHz part R100 R101 R116 R117 R119 R121 gt 1V ve Check U200 7 19 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 15 DCS Transmitter TX ON OLevel U103 Pin7 Yes gt 20dBm Resolder CN100 C144 ne 0103 pind Yes Check U103 pin2 4 L Change or Resolder U100 H 2 68V gt Check ANT Switch control circuit Yes 0102 pin31 Resolder L111 C147 gt 20dBm No Yes Check 0102 0102 pin37 d gt Resolder or Change U102 gt 3dBm Poe uae eee or check PAM control signal
13. SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 5 Microphone Part Microphone does not work Check the connection from MIC Resolder MIC No Check the circuit gt Resolder the R601 R605 R611 R612 R613 from U200 to MIC C604 and C610 No Replace the MIC Yes END 7 8 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting Microphone MIC600 V600 y V601 MIC JTAG C606 Close to microphone C608 MIC BIAS R611 C626 C627 11901 C604 gt MIC P R612 C610 R603 7 9 gt gt MIC_N R613 R605 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 6 Speaker Part Melody Speaker does not work lt 0300 5 2 85V Resolder or replace U300 Check the Clock signal at Check the clock generation circuit Pin 1 of U301 13MHz related to OSC100 and U301 U301 pin 17 18 1 8V When U301 operate Resolder U301 No Che
14. fmod QOUT QOUT FUJITSU PCS RX SAW Filter FAR F6EB 1G9600B2BW FE_SW1 IL 2 8dB max Ripple 1 6dB max FE SW2 Vcc SYN PCS RX ON Vcc REF 2 AV typ REFIN VTCXO Order Loop Filter D 26MHz OFFSET Mixer input power REF 13M 16dBm max 22dBm min m Vcc Tx BURST Discrete Loop Fiter DATA CLK EN RXON GSM S W Philips Transceiver TX ENABLE US FESWON BAND SELECT DCS PCS S W TX H 510 869 5 5 X4 8X 1 5 nm DCS PCS IN 824 915 RFMD PAM 0 5 30V RF5146 7x7 DCS PCS 1710 1910 GSM Pout 35 0 dBm E ff 58 0 5 30V DCS Pout 33 0 dBm 5296 Pout 6 5 3dBmtyp lc lt 33nA PCS Pout 32 0 dBm 5596 Harnoni cs lt 15dBc 5 1 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Block Diagrams 2 Base Band Solution Block Diagram Battery Tenper at ure F E 2 3 5 MC H 5 Li ion Battery 17 BB Block Diagram of SGH X640 5 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 6 Diagrams 1 Main PCB Top Diagram CON LON ng 9 EON PON
15. of Troubleshooting 3 Charging Part Check the the circuit related to V EXT CHARGE Resolder or replace U502 Abnormal charging part Yes Check the C508 gt 4 9 Yes No gt Yes No gt Check the circuit related to CHG_ON signal 7 5 Resolder or replace U502 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting Charging VDD2 END_OF_CHARGE lt VBAT R507 cw TA R509 L ess R508 l TERM _ cua on 2 BAT CHARGER_OK 3 CHRG VCCJ 4 GND 5 GG GG TIT R511 R512 20501 7 6 MES V_EXT_CHARGE 9 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 4 Sim Part Phone can t access SIM Card No CN400 pin 1 5 H 2 05 Check the sim charge pump Yes No After Power ON Check SIMCLK Signal on CN400 Check the 32k OSC pin3 in a few second Yes No After SIM card insert CN400 pin 2 H SIM RST Replace PBA Check the SIM Card Yes END 7 7
16. 02882 1800 0801 002237 1801 1204 002161 1802 1109 001316 803 GH13 00020A UB04 0801 002882 1806 0801 002882 U400 1205 002350 U500 2901 001246 U502 1203 003486 0603 1001 001253 0610 1202 001036 0701 1203 001917 0702 1203 003459 600 1405 001082 V601 1405 001082 V602 1405 001082 V603 1405 001082 V604 1405 001082 V605 1405 001082 Desi gn LOC SEC V700 1405 001128 v702 1405 001128 704 1405 001128 705 1405 001128 V706 1405 001128 V707 1405 001128 V708 1405 001128 V709 1405 001128 v710 1405 001128 vni 1405 001128 X400 2801 004339 Z501 0403 001427 1502 0403 001387 21600 0406 001194 2501 0406 001194 22700 0406 001194 2701 0406 001194 4 5 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Parts List 46 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 5 Block Diagrams 1 RF Solution Block Diagram HITACHI METAL ANT SWITCH SHS 9 4 5X3 2 Imax 10 mA Freq MHz Loss 880 915 1 2 Ts 1 Ps FUJITSU EGSM RX SAW Filter Pins IA IB QA and QB 1805 1880 1248 FAR F5EB 942M50 B28CH Vio 1 25 1 15Vmn 1 35V ma 1930 1990 1 2 dB IL 2 7dB max Vmod 0 5Vpp Ripple 1 7 dB max OUT I OUT 100 kHz
17. 07 R100 2007 007148 R101 2007 000141 R102 2007 007528 R103 2007 000566 R104 2007 001298 R105 2007 007142 R106 2007 007311 R107 2007 001305 R108 2007 001305 R109 2007 000566 R110 2007 000148 R111 2007 001305 R112 2007 008117 R113 2007 001305 R114 2007 001308 R115 2007 001305 R116 2007 000142 R117 2007 000142 R118 2007 000775 R119 2007 000142 R120 2007 000171 R121 2007 000142 R123 2007 000171 R124 2007 001288 4 3 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Parts List Desi gn LOC SEC R125 2007 001313 R126 2007 001313 R127 2007 000171 R128 2007 007314 R129 2007 000147 R130 2007 000148 R131 2007 000148 R132 2007 000171 R200 2007 000171 R201 2007 000162 R202 2007 007107 R203 2007 007142 R204 2007 007107 R205 2007 007142 R206 2007 000162 R207 2007 000162 R208 2007 007001 R209 2007 000141 R210 2007 000141 R211 2007 000162 R212 2007 000172 R213 2007 000172 R300 2007 007014 R301 2007 001313 R302 2007 007014 R303 2007 001325 R304 2007 000153 R305 2007 000171 R306 2007 001319 R307 2007 007013 R308 2007 007001 R310 2007 000162 R311 2007 000162 R312 2007 000162 R313 2007 000162 R314 2007 000162 R315 2007 000162
18. 08 2203 005509 C309 2203 002687 C310 2203 005483 Gu 2203 006093 C32 2203 006208 C313 2203 005061 C314 2203 000254 C315 2203 005061 C316 2203 001259 C37 2203 000438 C318 2203 001259 C319 2203 006053 C400 2203 005482 CA01 2203 005061 C402 2203 006208 C403 2203 005482 C406 2203 000254 C407 2203 000278 C408 2203 006208 0409 2404 001225 Gui 2203 000330 C42 2203 005482 13 2203 000330 2203 001652 15 2203 006053 C416 2203 006324 17 2203 000888 C418 2203 006208 C419 2203 006208 6420 2203 006208 C21 2404 001225 C422 2203 005482 424 2404 001225 25 2203 001652 26 2203 006053 0427 2404 001225 Desi gn LOC SEC C428 2203 006053 C429 2203 006053 2203 006053 431 2203 006053 C502 2203 005061 C505 2203 005061 C506 2404 001268 C507 2404 001268 C508 2203 005061 0500 2203 000330 C502 2203 000995 0503 2203 005061 0504 2203 005061 0505 2203 002443 0606 2203 000854 C508 2203 000995 0509 2203 000278 C510 2203 005061 511 2203 000386 C512 2203 000330 0513 2203 000278 C514 2203 000679 0615 2203 000679 C517 2203 000854 C519 2203 005482 C520 2203 000438 C521 2203 000438 0522 2203 005482 0625 2203 000812 626 2404 001352 0627 2404 001352 528 2203 000278 C702 2203 000254 C703 2203 006257 C704 2203 000278 a00 3
19. 70 001273 3710 001994 4 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Parts List Desi gn LOC SEC C501 3711 005783 QN502 3705 001355 D700 0406 001201 D701 0406 001201 EAR600 3722 002249 F100 2904 001469 F101 2904 001480 F102 2904 001470 F103 2901 001254 F700 2901 001286 F701 2901 001286 F702 2901 001286 F703 2901 001286 F704 2901 001286 F705 2901 001286 HXC700 3711 005551 L100 2703 002208 L101 2703 002203 L102 2703 002208 1103 2703 001722 L104 2703 002267 L105 2703 002199 L106 2703 001748 L107 2703 001722 L109 2703 002204 L110 2703 001723 L111 2703 001749 L112 2703 001723 L113 2703 001723 L114 2703 001970 L620 3301 001729 LED700 0601 001602 LED O1 0601 001602 LED702 0601 001602 LED703 0601 001602 LED704 0601 001602 LED705 0601 001602 Desi gn LOC SEC LED 06 0601 001602 LEDO7 0601 001790 LED708 0601 001602 LED710 0601 001790 LED 11 0601 001790 LED712 0601 001602 LED 13 0601 001790 LED 14 0601 001602 5 100 2809 001294 5 101 2806 001329 5 300 2801 004285 0500 0504 001012 0700 0506 0001
20. 9 01921A 01 MICROPHONE ASSY GH30 00130A QCRO8 SCREW MACHINE 6001 001456 QANO2 INTENNA GH42 00523A QREO1 REAR COVER GH75 06202A QRFO1 RF SHEET GH74 13063A QIFO1 IF COVER GH72 19208A QCR21 SCREW MACHINE 6001 001507 QBAO1 BAT TERY GH43 01658A 3 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Exploded view and Part list 3 Test Jig GH80 01909A 3 1 RF Test Cable 3 2 Test Cable GH39 00283A GH39 00217A 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00219A 3 3 3 3 Serial Cable 3 6 TA GH44 00482A SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Exploded view Part list 3 4 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 4 Hectrical Parts List Desi gn LOC SEC Desi gn LOC SEC BAT400 4302 001119 C136 2203 000585 C100 2203 005482 a37 2203 000585 01 2203 005057 C138 2203 000585 C102 2203 005057 C139 2203 000585 C103 2203 005482 C41 2404 001239 104 2203
21. G 8 3 255 3 E 8 3 H Im 1 i 8 z 2 38 alale 9 2 RIX ele lele 8 8 8 3 1 8 8 3 8 8 E 7 21 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 22 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization
22. H2600DGI4KRA SEM AFC control signal from OM6359 controls frequency from 26MHz x tal The clock output frequency of UAA3536 is 13MHz This clock is connected to OM6359 YMU762C Camera DSP MV317S Tiger is an Integrated circuit for mobile phone camera This structure will allow effectiveness for large data management and significantly reduces main processor will get burden In hence Tiger will allow the user to be able to display to LCD direct without burdening the main processor It also allows to have various kinds of display size on the LCD and snapshot for Jpeg Digital effect will also be executed on real time base resulting Tiger as being a video co processor in the mobile platform Also an i80 type processor s 16bit parallel interface of Tiger makes it available for the CPU to interchange the data with Tiger As the additional 8Mbit is usable except 2Mbit buffer embedded in Tiger the diverse UI data processing which is not a burden to the CPU is available JPEG encoder and decoder are baseline ISO IEC 10918 1 JPEG compliance DCT based JPEG decoder supports YUV444 YUV422 YUV420 YUV411 format standard JPEG image 2 5 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Circuit Description 2 6 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 3 Exploded View and Parts list
23. NG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 10 Key Back Light Key Backlight does not work Yes No Check the PMU related to VDD_KEY Yes No Resolder or replace U701 Yes END J 7 15 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 11 Camera part function does not work ipm No EY Check the camera ie Connect the camera module Yes HDC700 pin 50 Check LCD and HDC700 Check OSC300 and R318 Check the R304 C308 Replace the camera module 7 16 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 12 GSM Receiver RX ON RF input CH center freq Amp 50dBm No Resolder CN100 C144 U103 Pin7 gt 65dBm U103 pin5 Mo i Check U103 heck ul gt Check ANT Switch L pin8 control circuit Yes Resolder U103 Resolder F100 C104 L103 U100 pin32 gt 70dBm pin33 gt 70dBm Resolder L100 L101 L102
24. a Banas pro 69 enaa SSS SSS BATddNS avana za Aven TB 3 4 ANSA a asa ay ne z3 oauuuo mns e 04081 vr maner vans C ANDE 1 MESE ATddNS zovu ee 55 d ivan mE avan gt _ a ansa HOSN3S z uy 4 wo E d 9i 1 2 T h saon for T WOLVERNIOT P soos ov Z2 gt Svia o zm 4 4 e Svid O1N 5 HE BON3u3 43H Zh E ES 99 snows dIHO NO jeo 9434 feH ee Ba omis wis 28 Uis E vs E 108 9999 992 8019 z alist RS 8 SN 1131090840d 5 z ISa Ga 007 J Orns 25 208 2 sees X19 WIS PP ER Bee EE isu WIS 2 90 WIS Iiis m Joa if i pu 9 11 NO 43H M ane 2 0155 wrar xa NDXOVP 1V8A 10038 oa oir ios Wis Aiddns pueqoseg idan 7 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 2 Init
25. ck the circuit related to SPK P SPK N signal HDC700 pin 40 42 L8V No Is Speaker working Change the Speaker 7 10 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting Speaker lt VDD3 VDD2 lt HAC lt MELODY CS VDD2 VDD2 lt HWR_N lt 0300 C300 veol lt HD 1 st e 7 zo 29 Ry 26 6 l1 MEL 13M gt 11 IN R301 DUX BE cm 1 TUE 25 R302 02 lt HD 2 24 2 ED 03 lt HD 3 23 nRa D4 22 M_RST 5 05 lt 0301 21 Inc 06 lt HD 6 20 6 pic D7 19 MTR gt VIB 9 18 853 SPOUT2 gt gt AMP_N 9 RU Spoun 17 L 6301 cul Bee B m C303 C304 ae 0 39 0 amp amp rr u u o o amp_p 9 12 14 15 16 19 C305 lt SPVDD MELODY IC C306 6307 R306 09 C310 T R308 EARP_HF 1 EARP SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart o
26. cument can not be used without Samsung s authorization Specification 2 GSM TX power class TX Power TX Power control level PEENE control level PESI 5 3342 dBm 0 30 3 dBm 6 3142 dBm 1 28 3 dBm 7 29 2 dBm 2 26 3 dBm 8 27 2 dBm 3 24 53 dBm 9 2542 dBm 4 22 3 dBm 10 2342 dBm 5 20 53 dBm 11 2142 dBm 6 18 3 dBm 12 19 2 dBm 7 16 3 dBm 13 1752 dBm 8 14 3 dBm 14 15 2 dBm 9 12 4 dBm 15 13 2 dBm 10 10 4 dBm 16 11 3 dBm 11 8 4dBm 17 9 3dBm 12 6 4 dBm 18 7 3 dBm 13 4 4 dBm 19 5 3 dBm 14 2 5 dBm 15 0 5 dBm 1 2 TX Power PCS1900 control level 0 30 3 dBm 1 28 3 dBm 2 26 3 dBm 3 2423 dBm 4 22 3 dBm 5 20 53 dBm 6 18 53 dBm T 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 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 2 Circuit Description 1 SGH X640 RF Circuit Description 1 RX PART 1 ASM U103 gt Switching Tx Rx path for GSM900 DCS1800 PCS1900 by logic controlling 2 ASM Control Logic 0103 Truth Table 2 GSM Tx Mode H L L DCS Tx Mode L H L PCS Tx Mode H L L GSM Rx Mode L L L DCS Rx Mode L L L PCS Rx Mode L L H 3 FILTER To convert Electromagnetic Field Wave to Acoustic Wave a
27. e on the synchronization between sound and images various contents can be written into it including incoming call melody with words that can be used for training karaoke and commercial channel that combines texts images and sounds and others The hardware sequencer of YMU762C directly interprets and plays blocks relevant to synthesis playing music and reproducing ADPCM with FM synthesizer that are included in data distributed in SMAF 8 Memory Signals in the OM6359 enable two memories They use only one volt supply voltage VDD3 in the PCF50601 This system uses Samsung s memory KBBO6A500M T402 It is consisted of 128M bits flash NOR memory and 128M bits flash NAND memory and 64M bits SCRAM It has 16 bit data line HD 0 15 which is connected to OM6359 and MV317S It has 26 bit address lines HA 1 26 CS NAND and NCSRAM signals are chip select Writing process HWR N is low and it enables writing process to flash memory and SRAM During reading process HRD N is low and it enables reading process to flash memory and SRAM Each chip select signals in the OM6359 select memory among 2 flash memory and SCRAM Reading or writing procedure is processed after HWR or is enabled Memories use reset which is VDD3 delay from PCF50601 HA 25 signal enables lower byte of SRAM and HA 26 signal enables higher byte of SRAM 9 OM6359 OM6359 is consisted of ARM core and DSP core It has 8 1 on chip program data RAM 55 Kwords on c
28. ected with PCF50601 to enable PCF50601 Fifteen key LEDs use the VBAT as supply voltage VDD KEY signal enables LEDs FLIP informs the status of folder open or closed to the OM6359 This uses the hall effect IC SH248CSP magnet under main LCD enables SH248CSP 4 EMI ESD Filter This system uses the EMI ESD filter 09 to protect noise from IF CONNECTOR part 5 IF connetor It is 18 pin connector They are designed to use VBAT V EXT CHARGE RXDO RTSO CTSO REC CHARGER RXD1 TXD1 AUX AUX SPK and GND They connected to power supply IC microprocessor and signal processor IC 6 Battery Charge Management A complete constant current constant voltage linear charger is used for single cell lithium ion batteries If TA connected to phone V EXT CHARGE enable charger IC and supply current to battery When fault condition caused CHG ON signal level change low to high and charger IC stop charging process 7 Audio EARP P and EARP N from OM6359 are connected to the main speaker AUXSP is connected to the Hands free kit MIC P and MIC are connected to the main MIC And AUX MIC P and AUX MIC N are connected to the Hands free kit YMU762C is a LSI for portable telephone that is capable of playing high quality music by utilizing FM synthesizer and ADPCM decoder that are included in this device As a synthesis YMU762C is equipped 32 voices with different tones Since the device is capable of
29. f Troubleshooting 7 Key Data Input Check Initial Operation When one of the keys is pushed Check the Dome sheet amp Key Pad is it displayed on LCD When one of the keys is hed pushed Replace the PBA KBIO signal is OK 7 12 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 8 Receiver Part Receiver does not work U603 pin 9 13 1 5V U603 1 5 1 5 EAR600 pin 4 5 short HDC700 pin 40 42 1 5V SPK PAD 1 5V Check the soldering of the speaker wire Is Receiver working END 7 13 Resolder or replace 0603 Resolder or replace U603 Resolder EAR600 Resolder HDC700 Cange LCD module Modify the speaker wire soldering Replace the Receiver SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 LCD Part LCD does not work Is LCD Contrast set on high level in the Menu Set LCD Contrast on high level HDC700 pin 19 L_WR 20 RS is OK Replace the LCD Module END 7 14 Check the R304 C308 Check the U303 SAMSU
30. hip program ROM in the DSP It has 4K 32bits ROM and 2K 32bits RAM in the ARM core DSP is consisted of KBS JTAG EMI and UART ARM core is consisted of EMI PIC Programmable Interrupt Controller reset power clock unit DMA controller TIC Test Interface Controller peripheral bridge PPI SSI Synchronous Serial Interface ACC Asynchronous communications controllers timer ADC RTC Real Time Clock and keyboard interface KBIO 0 7 address lines of DSP core and HD 0 15 HA 1 26 address lines of ARM core and HD 0 15 data lines of ARM core are connected to memory YMU762C MV317S Camera DSP Chip controls the communication between ARM core and DSP core CS NAND NCSRAM NCSFLASH in the ARM core are connected to each memory HWR_N and HRD_N control the process of memory External IRQ Interrupt ReQuest signals from each units such as PMU need the compatible process KBIO 0 7 receive the status from key and RXDO TXDO are used for the communication using data link cable DEBUG DTR RTS TXD RXD CTS DSR It has JTAG control pins TDI TDO TCK for ARM core and DSP core It receives 13MHz clock in CKI pin from external TCXO ADC Analog to Digital Convertor part receives the status of temperature battery type and battery voltage 2 4 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Circuit Description 10 TOH2600DGI4KRA 26MHz 11 This system uses the 26MHz TCXO TO
31. ial Initial Failure Yes R200 RSTON Is U304 pin 4 6 memory CE OK Check the circuit around LCD amp U304 Short or not solder END 7 3 Check the circuit related to reset Check the U304 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting BE oko 88 6222 RI ES 214 2 2 8 EERE E 1018 zoia omis tolg Sol Sol 108 siiis nows 5 sozu orzu omis E 40 qua ag vos ana ep sono E issu voids 0 mu Nas NO ona one See MR N308 NrHsvu na Eg TEM 100 ES 054 sav aa v INSO a
32. k frequency for the PCF50601 and other circuitry 2 LCD Connector LCD is consisted of main LCD color 65K UFB LCD Chip select signals LCD_MAIN_CS can enable LCD BACKLIGHT signal enables white LED of main LCD RESET_2V8 signal initiates the reset process of the LCD 2 2 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Circuit Description 16 bit data lines LD 0 LD 15 transfers data and commands to LCD through bypass capacitor Data and commands use RS signal If this signal is high inputs to LCD are commands If it is low inputs to LCD are data The signal which informs the state of LCD is whether input or output is required But in this system there is no input state from LCD So only WR signal is used to indicate write data or command to LCD Power signals for LCD are VBAT and VDD2 SCL M SCA PCLK FVALID LVALID and STANDBY signals are all related to camera working SVC LED is signal for service led when the signal is low led is on and vice versa P and SPK are used for audio speaker containing voice or melody And VDD VIB from PCF50601 enables the motor 3 Key This is consisted of key interface pins among OM6359 KBIO 0 7 These signals compose the matrix Result of matrix informs the key status to key interface in the OM6359 Power on off key is separated from the matrix So power on off signal is conn
33. nd then pass the specific frequency band GSM FILTER F100 gt For filtering the frequency band between 925 and 960 MHz DCS FILTER F102 gt For filtering the frequency band between 1805 and 1880 MHz PCS FILTER F101 gt For filtering the frequency band between 1930 and 1990 MHz 4 VC TCXO OSC100 This module generates the 26MHz reference clock to drive the logic and RF After division by two a reference clock of 13MHz is supplied to the other parts of the system through the pin CLKOUT After additional process the reference clock applies to the U100 Rx IQ demodulator and Tx IQ modulator And then the oscillator is controlled by serial data to select channel and use fast lock mode for GPRS high class operation 5 Transceiver U100 The receiver front end which amplifies the GSM DCS aerial signal converts the chosen channel down to a low IF signal of 100 kHz The first stages are symmetrical low noise amplifiers LNAs The LNAs are followed by an IQ down mixer It consists of two mixers in parallel but driven by quadrature out of phase LO signals The In phase I and Quadrature phase Q IF signals are low pass filtered to provide protection from high frequency offset interferes The low IF I and Q signals are then fed into the channel filter The front end low IF I and Q outputs enter the integrated bandpass channel filter with provision for five 8 dB gain steps in front of the filter 2 TX PART I and Q baseband signal
34. rt for 1 8V 3 0V and 5 0V SIMs while a self resetting electronically fused switch supplies power to external accessories Ancillary support functions such as RTC module and High Voltage Charge pump Clock generator aid in reducing both board area and system complexity BUS serial interface provides access to control and configuration registers This interface gives a microprocessor full control of the PCF50601 and enables system designers to maximize both standby and talk times Supervisory functions including a reset generator an input voltage monitor and a temperature sensor support reliable system design These functions work together to ensure proper system behavior during start up or in the event of a fault condition low microprocessor voltage insufficient battery energy or excessive die temperature Backlight Brightness Modulator The Backlight Brightness Modulator BBM contains a programmable Pulse width modulator PWM and FET to modulate the intensity of a series of LED s or to control a DC DC converter that drives LCD backlight But this phone SGH X640 is use UFB LCD UFB LCD controls backlight brightness by contrast setting So BL_VDD voltage is always high value when phone is in active mode When phone is in dimming mode BL_VDD goes to about 10 duty PWM Clock Generator The Clock Generator CG generates all clocks for internal and external usage The 32768 Hz crystal oscillator provides an accurate low cloc
35. s are applied to the IQ modulator that shifts the modulation spectrum up to the transmit IF It is designed for low harmonic distortion low carrier leakage and high image rejection to keep the phase error as small as possible 2 1 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Circuit Description The modulator is loaded at its IF output by an integrated low pass filter that suppress unwanted spurs prior to get into the phase detector The clock drive is generated by division of the RFLO signal provided for the transmit offset mixer Baseband IQ signal fed into offset PLL this function is included inside of U100 chip OSC101 chip generates modulator signal which power level is about 6 5dBm and fed into Power Amplifier U102 The PA output power and power ramping are well controlled by Auto Power Control circuit We use offset PLL below table 200kHz offset GSM 35dBc 30 kHz bandwidth DCS 354 Modulation Seco 400kHz offset GSM 66dBc p 30 kHz bandwidth DCS 6SdBc 600kHz 1 8MHz offset GSM T5dBc 30 kHz bandwidth DCS 68dBc 2 Baseband Circuit description of SGH X640 1 PCF50601 1 1 1 2 1 3 Power Management Ten low dropout regulators designed specifically for GSM applications power the terminal and help ensure optimal system performance and long battery life A programmable boost converter provides suppo
36. simultaneously generating up to synchronous with the play of the FM synthesizer various sampled voices can be used as sound effects Since the play data of YMU762C are interpreted at anytime through FIFO the length of the data playing period is not limited so the device can flexibly support application such as incoming call melody music distribution service The hardware sequencer built in this device allows playing of the complex music without giving excessive load to the CPU of the portable telephones 2 3 SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Circuit Description Moreover the registers of the FM synthesizer can be operated directly for real time sound generation allowing for example utilization of various sound effects when using the game software installed in the portable telephone YMU762C includes a speaker amplifier with high ripple removal rate whose maximum output is 550mW SPVDD 3 6V The device is also equipped with conventional function including a vibrator and a circuit for controlling LEDs synchronous with music For the headphone it is provided with a stereophonic output terminal For the purpose of enabling YMU762C to demonstrate its full capabilities Yamaha purpose to use SMAF Synthetic music Mobile Application Format as a data distribution format that is compatible with multimedia Since the SMAF takes a structure that sets importanc
37. v so QN 80 merasa y B NOW xnv Noixnv doixnv NOIN sov gt Hava 218 asxnv Hal asxnv Nava Nuva EN AWN Be anal eoavaniy BI man zoavxnv iive san y ioQvinv viv EE Daxa a zzy XL HO 49 oozn zovaxnv anal 9 iovaxnv me uM mem gt ez iva vivis au lt gt lt NOX NOX xu Nod HINAS 138 29529 Sod vols NOTMSINY sorsu N3XL 295 5 NOXNY NTON sod 8 Nise OOAKL WSO cos4u 5 5 oum det agga zziz 5 85208 2223 22 2999 28322 8888 88 8888 8888 NO 334 asxny 89238 8888 88 8559 8888 INOd9 8 12549 lt No1SH ame lt lt Oe EET wo Saan zaan aan Initial gt oso LA LOZA eaan gt 7 4 This Document not be used without Samsung s authorization SAMSUNG Proprietary Contents may change without notice Flow Chart
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