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SAMSUNG Proprietary-Contents may change without notice

SGH-X481 Exploded View and its Parts list

3-

4

This Document can not be used without Samsung's authorization

3-3. Test Jig (GH80-03304A)

3-3-3. Serial Cable

3-3-4. Power Supply Cable

3-3-2. DATA CABLE

(GH39-00127A)

3-3-1. RF Test Cable

(GH39-00283A)

3-3-5. Test Cable

(GH39-00304A)

3-3-6. TA

(GH44-00954A)

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Содержание SGH-X481

Страница 1: ...HONE SGH X481 GSM TELEPHONE CONTENTS 1 Specification 2 Flow Chart of Troubleshooting 3 Exploded View and Parts List 4 Electrical Parts List 5 PCB Diagrams 6 Block Diagrams 7 Disassembly and Assembly instructions ...

Страница 2: ... Rx 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 13dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class 5pcl 15pcl 5pcl 19pcl 0pcl 15pcl 0pcl 15pcl Sensitivity 1...

Страница 3: ... 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 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 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 4dBm 12 6 4 dBm...

Страница 4: ... ON does not work No Yes Yes END Yes Check the Initial Operation Yes Charge the battery No Check the Voltage of the Battery 3 3V check keypad No Check the pin C101 C102 C103 of U100 is 2 8V Check Power On key No check U100 and C101 Yes 1 Check the clock signal at pin 4 of OSC600 No Check the clock generation circuit OSC600 Yes 2 ...

Страница 5: ...SGH X481 Flow Chart of Troubleshooting 2 2 ...

Страница 6: ...in RSTB of U600 is LOW Check U600 No Yes Yes END Yes Check the Initial Operation Yes Check R800 R801 C811 R803 No check the pin CKI of U600 is 13Mhz Check the clock signal at pin 3 of OSC600 No check OSC600 1 Check the pin 9 of U600 is HIGH and pin 11 13 is 2 9V No Check U100 Yes 2 3 4 ...

Страница 7: ...SGH X481 Flow Chart of Troubleshooting 2 4 ...

Страница 8: ...roubleshooting 2 5 END No Yes 2 Check the SIM Card Insert SIM is displayed on the LCD Is there any signal pin 2 3 4 of CN100 Check the U100 Check the U100 U600 No Yes 1 The voltage is 2 8V at the pin 1 of CN100 2 1 3 Sim Part ...

Страница 9: ...SGH X481 Flow Chart of Troubleshooting 2 6 ...

Страница 10: ...one Part Call with Sim before testing Check the soldered status of microphone MicroPhone does not work Resolder microphone END No Yes Yes Check the reference voltage on mic path R418 2 0V Yes Resolder or change C423 No Is microphone OK Yes Check U100 No 1 2 ...

Страница 11: ...SGH X481 Flow Chart of Troubleshooting 2 8 ...

Страница 12: ...Part Check the connection status of LCD connector CN200 There is no sound from speaker Are there any signal at the speaker pad on LCD PCB reconnect CN200 Replace the speaker module END No Yes No No Yes Check R402 R403 of U402 Voltage is 1V 1 Yes Check U500 2 ...

Страница 13: ...SGH X481 Flow Chart of Troubleshooting 2 10 ...

Страница 14: ...oting 2 11 2 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 U200 pin 8 10V Check the LCD Yes Yes No ...

Страница 15: ... U801 pin 21 22 65dBm Yes No No Check U900 pin 16 65 dbm Yes No Yes Check ANT C824 C825 C904 C903 Resolder or change CON901 C903 L903 L904 C901 C902 Resolder or change U900 Resolder or change F900 Resolder or change U600 CONTINOUS RX ON RF INPUT 62CH AMP 60dbm Check U801 pin 13 2 9V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Страница 16: ...SGH X481 Flow Chart of Troubleshooting 2 13 ...

Страница 17: ...801 pin 19 20 65dBm Yes No No Check U900 pin 18 65 dbm Yes No Yes Check ANT C822 C823 L802 Resolder or change CON901 C903 L903 L904 C901 C902 Resolder or change U900 Resolder or change F900 Resolder or change U600 CONTINOUS RX ON RF INPUT 698CH AMP 60dbm Check U801 pin 13 2 9V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Страница 18: ...SGH X481 Flow Chart of Troubleshooting 2 15 ...

Страница 19: ... channel Check ANT C820 C821 L801 No 1 Yes Check U900 pin 12 65 dbm 2 Resolder or change CON901 C903 L903 L904 C901 C902 No Yes Check U900 pin 18 65 dbm Resolder or change U900 No 3 Yes Check U801 pin 19 20 65dBm 4 No Resolder or change F900 Yes Check U801 pin 13 2 9V No Resolder or change U100 5 Yes Resolder or change U600 ...

Страница 20: ...SGH X481 Flow Chart of Troubleshooting 2 17 ...

Страница 21: ...SGH X481 Flow Chart of Troubleshooting 2 18 ...

Страница 22: ... DAC 554 CODE APPLIED CH 62ch RBW 100KHz VBW 100KHz SPAN 10MHz REF LEV 10dBm ATT 20dB U900 pin 11 about 4 5dbm Yes No Yes U900 pin 7 3 7V U801 check change No Battery U100 check change Yes U900 pin 8 1 2V No U100 check Yes U900 pin 6 3V No U100 check U801 pin 12 13 28 29 2 9V U900 change or resolder U100 change or resolder No Yes U801 change or resolder Yes U900 pin 12 about 5dbm No Yes No 1 2 3 4...

Страница 23: ...SGH X481 Flow Chart of Troubleshooting 2 20 ...

Страница 24: ... Yes U900 pin 7 3 7V No Yes U900 pin 8 1 2V No Yes U900 pin 12 about 5dbm No Yes U900 pin 6 3V No U801 pin 12 13 28 29 2 9V Yes No U900 change or resolder Yes CONTINUS TX ON CONDITION TX POWER DAC 560 CODE APPLIED CH 698CH DCS 660CH PCS RBW 100KHz VBW 100KHz SPAN 10MHz REF LEV 10dBm ATT 20dB U801 check change 3 Battery U100 check change 4 U100 check 4 U100 check 4 U801 change or resolder 3 U100 ch...

Страница 25: ...SGH X481 Flow Chart of Troubleshooting 2 22 ...

Страница 26: ...e used without Samsung s authorization 3 SGH X481 Exploded View and its Parts list 3 1 Cellular phone Exploded View QFU01 QME03 QLC01 QSP01 QMO01 QFL01 QCR04 QSC05 QSC08 QMW02 QIF01 QFR01 QKP01 QRF03 QSC14 QVO01 QAN02 QMI01 QME01 QMP01 QRE01 QBA01 QCR04 QRF01 QMI03 QVK01 QAN11 QHI01 ...

Страница 27: ... X481 GH97 05658A QME01 UNIT METAL DOME GH59 03023A QME03 PCB CON TO CON GH41 01181A QMI01 MICROPHONE ASSY SGHX460 GH30 00119A QMO01 MOTOR DC GH31 00148A QMP01 PBA MAIN SGHX481 GH92 02649A QMW02 PCT COVER MAIN WINDOW GH72 29249A QRE01 ASSY CASE REAR GH98 00742A QRF01 MPR TAPE RF SWITCH GH74 12570A QSC05 MPR SCREW CAP R GH74 12568A QSC08 MPR SCREW CAP L GH74 12569A QSC14 MPR FRONT SHEET GH74 13673A...

Страница 28: ...08494A LABEL R MAIN SER GH68 09191B MANUAL USERS EU RUSSIAN GH68 09659A CUSHION CASE 1 2 GH69 02722A BOX P UNIT SER GH69 03612B IPR LOCKER SPRING GH70 00228A PMO BATT LOCKER GH72 19087A MPR MAIN WIN BOHO VINYL GH74 09036A MPR BOHO VINYL W SUB OUT GH74 09046A MPR BOHO VINYL W SUB OUT GH74 09046A MPR LOWER BOHO VINYL GH74 09047A MPR TAPE WINDOW GH74 12567A MPR TAPE EAR COVER GH74 12571A MPR TAPE CON...

Страница 29: ...ed View and its Parts list 3 4 This Document can not be used without Samsung s authorization 3 3 Test Jig GH80 03304A 3 3 3 Serial Cable 3 3 4 Power Supply Cable 3 3 2 DATA CABLE GH39 00127A 3 3 1 RF Test Cable GH39 00283A 3 3 5 Test Cable GH39 00304A 3 3 6 TA GH44 00954A ...

Страница 30: ...03 006562 SA C115 C CER CHIP 2203 006562 SA C116 C CER CHIP 2203 006562 SA C117 C CER CHIP 2203 006183 SA C118 C CER CHIP 2203 000254 SA C119 C CER CHIP 2203 002709 SNA C120 C CER CHIP 2203 000254 SA C121 C CER CHIP 2203 005819 SA C123 C CER CHIP 2203 005617 SNA C125 C TA CHIP 2404 001415 SA C201 C CER CHIP 2203 006048 SA C202 C CER CHIP 2203 006048 SA C205 C CER CHIP 2203 000254 SA C206 C CER CHI...

Страница 31: ... C TA CHIP 2404 001105 SA C431 C CER CHIP 2203 000628 SA C432 C CER CHIP 2203 000812 SA C433 C CER CHIP 2203 001072 SA C434 C CER CHIP 2203 001072 SA C435 C CER CHIP 2203 006260 SA C436 C CER CHIP 2203 005344 SA C501 C CER CHIP 2203 000233 SA C502 C CER CHIP 2203 002709 SNA C503 C CER CHIP 2203 000233 SA C504 C CER CHIP 2203 002709 SNA C600 C CER CHIP 2203 006260 SA C601 C CER CHIP 2203 000254 SA ...

Страница 32: ...A C902 C CER CHIP 2203 002668 SA C903 C CER CHIP 2203 000812 SA C904 C CER CHIP 2203 000854 SA C905 C CER CHIP 2203 000254 SA C907 C CER CHIP 2203 000254 SA C908 INDUCTOR SMD 2703 002205 SA C909 C CER CHIP 2203 000438 SA C911 C CER CHIP 2203 001383 SA C912 C TA CHIP 2404 001449 SA C913 C CER CHIP 2203 000254 SA C914 C CER CHIP 2203 000530 SA C915 C CER CHIP 2203 000438 SA CN200 HEADER BOARD TO BOA...

Страница 33: ... 000225 SA R101 R CHIP 2007 000162 SA R103 R CHIP 2007 007142 SA R104 R CHIP 2007 000171 SA R105 R CHIP 2007 000167 SA R106 R CHIP 2007 000172 SA R108 R CHIP 2007 000172 SA R109 R CHIP 2007 000162 SA R111 R CHIP 2007 007142 SA R112 R CHIP 2007 000154 SA R113 R CHIP 2007 000153 SA R114 R CHIP 2007 000162 SA R115 R CHIP 2007 000140 SA R200 R CHIP 2007 000171 SA R201 R CHIP 2007 000172 SA R202 R CHIP...

Страница 34: ... R CHIP 2007 007142 SA R412 R CHIP 2007 007107 SA R413 R CHIP 2007 001320 SA R414 R CHIP 2007 000142 SNA R415 R CHIP 2007 001317 SA R416 R CHIP 2007 000171 SA R417 R CHIP 2007 000161 SA R418 R CHIP 2007 001320 SA R421 R CHIP 2007 001291 SA R422 R CHIP 2007 007142 SA R423 R CHIP 2007 001291 SA R424 R CHIP 2007 000161 SA R425 R CHIP 2007 000171 SA R427 R CHIP 2007 000140 SA R435 R CHIP 2007 001333 S...

Страница 35: ...2007 007306 SA SIM100 CONNECTOR CARD EDGE 3709 001336 SA TH300 THERMISTOR NTC 1404 001221 SA TR100 TR DIGITAL 0504 000168 SA U100 IC POWER SUPERVISOR 1203 003304 SA U101 IC BATTERY 1203 003663 SA U102 IC CMOS LOGIC 0801 000796 SA U200 IC DC DC CONVERTER 1203 004004 SA U201 FILTER EMI SMD 2901 001286 SA U202 FILTER EMI SMD 2901 001286 SA U203 FILTER EMI SMD 2901 001286 SA U206 IC POSI FIXED REG 120...

Страница 36: ...405 001082 SA V411 VARISTOR 1405 001082 SA VR700 VARISTOR 1405 001082 SA VR701 VARISTOR 1405 001082 SA VR702 VARISTOR 1405 001082 SA VR703 VARISTOR 1405 001082 SA VR704 VARISTOR 1405 001082 SA VR705 VARISTOR 1405 001082 SA VR706 VARISTOR 1405 001082 SA VR707 VARISTOR 1405 001082 SA VR708 VARISTOR 1405 001082 SA VR709 VARISTOR 1405 001082 SA VR710 VARISTOR 1405 001082 SA VR711 VARISTOR 1405 001082 ...

Страница 37: ...SAMSUNG Proprietary Contents may change without notice SGH X481 Main Electrical Parts List 4 8 This Document can not be used without Samsung s authorization ...

Страница 38: ...SAMSUNG Proprietary Contents may change without notice 5 SGH X481 PCB Diagrams 5 1 This Document can not be used without Samsung s authorization ...

Страница 39: ...SAMSUNG Proprietary Contents may change without notice SGH X481 PCB Diagrams 5 2 This Document can not be used without Samsung s authorization ...

Страница 40: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 6 SGH X481 Block Diagrams 6 1 ...

Страница 41: ... Be care of scratch and molding damage 1 2 3 4 5 6 1 Make the space between rear cover and front cover using assembly stick 1 At first remove the connector from PBA 2 And disjoint PBA form front ass y 3 Remove the front sheet tape at front ass y 1 Remove a screw cap with a pinset 2 Loosen a screw with driver 1 Loosen a screw this four point form Rear 1 Insert a assembly stick to folder space after...

Страница 42: ...Be care of scratch and molding damage 1 Be care of scratch and molding damage 1 Be care of scratch and molding damage 7 8 9 10 1 Separate the folder upper and lower by assembly stick 2 Repeat that procedure both side of folder ass y 1 Separate a motor from folder lower using a pinset 1 Saparate a speaker from folder lower using a pinset 1 Remove the tape con to con and separate the con to con from...

Страница 43: ...re of scratch and molding damage 1 Be care of scratch and molding damage Especially FPCB of con to con 1 2 3 4 5 1 Push the bottom side with thumb 2 Joint 4 hooks of all sides 1 At first combine the con to con with LCD connector 2 Rap the tape con to con to jointing point with clockwise 1 Insert the con to con to folder lower 2 Assemble speaker and motor wire arrangement 1 Insert the folder upper ...

Страница 44: ...d molding damage 2 Verify the direction of side key 1 Be care of scratch and molding damage 1 Be care of scratch and molding damage 7 8 10 1 Attach the front sheet 2 Put the keypad on front ass y 1 Put the PBA on front ass y and hook the con to con connector 2 Insert Side Key on side dome 1 Hook the rear cover to top side of front ass y 2 Grab bottom side of ass y and push all hooks 9 1 Fasten scr...

Страница 45: ...D Module con to con and tape con to con And inspect standard and nap of outside 1 At first combine the con to con with LCD connector 2 Rap the tape con to con to jointing point with clockwise 3 1 inspect the outside of LCD Module 3 Caution 1 Verify the model name SGH X481 in con to con Caution 1 Be careful of LCD damage while using pinset Caution 1 If the position of Tape con to con is wrong reatt...

Страница 46: ...SGH X481 Disassembly and Assembly instructions This Document can not be used without Samsung s authorization SAMSUNG Proprietary Contents may change Without notice 7 6 ...

Страница 47: ...tronics Co Ltd Code No GH68 11385A 2006 05 Rev 1 0 ⓒ This 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 ...

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