Samsung SGH-X461 Service Manual Download Page 2 | Manualshive

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1. SGH-X461 Specification

1-1

GSM900
Phase 1

EGSM 900

Phase 2

DCS1800

Phase 1

PCS1900

Freq. Band[MHz]

Uplink/Downlink

890~915
935~960

880~915
925~960

1710~1785
1805~1880

1850~1910
1930~1990

ARFCN range

1~124

0~124 &

975~1023

512~885

512~810

Tx/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

-102dBm

-102dBm

-100dBm

-100dBm

TDMA Mux

8

8

8

8

Cell Radius

35Km

35Km

2Km

-

1-1. GSM General Specification

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Summary of Contents for SGH-X461

Page 1: ...ELEPHONE SGH X461 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 Exploded and assembling View ...

Page 2: ...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 102dBm 102dBm 100dBm 100dBm TDM...

Page 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...

Page 4: ...t 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 C212 C213 C214 C215 of U200 is 2 8V Check Power On key No check U100 and C100 Yes 1 Check the clock signal at pin 1 of U802 Freq 26Mhz Vrms 300mV No Check the clock generation circuit U802 Yes 2 ...

Page 5: ...SGH X461 Flow Chart of Troubleshooting 2 2 ...

Page 6: ...STB of U600 is LOW Check U600 No Yes Yes END Yes Check the Initial Operation Yes Check R801 R802 C813 C815 No check the pin CKI of U600 is 13Mhz Check the clock signal at pin 3 of U802 Freq 26Mhz No check U802 1 Check the pin 9 of U600 is HIGH and pin 11 13 is 2 9V No Check U100 Yes 2 3 4 ...

Page 7: ...SGH X461 Flow Chart of Troubleshooting 2 4 ...

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

Page 9: ...SGH X461 Flow Chart of Troubleshooting 2 6 ...

Page 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 R420 2 0V Yes Resolder or change C423 No Is microphone OK Yes Check U100 No 1 2 ...

Page 11: ...SGH X461 Flow Chart of Troubleshooting 2 8 ...

Page 12: ...art Check the connection status of LCD connector HDC800 There is no sound from speaker Are there any signal at the speaker pad on LCD PCB reconnect HDC800 Replace the speaker module END No Yes No No Yes Check R401 R402 of U402 Voltage is 1V 1 Yes Check U500 2 ...

Page 13: ...SGH X461 Flow Chart of Troubleshooting 2 10 ...

Page 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 U300 pin 8 10V Check the LCD Yes Yes No ...

Page 15: ... U801 pin 21 22 65dBm Yes No No Check U102 pin 16 65 dbm Yes No Yes Check ANT R101 R102 U909 L103 Resolder or change CON900 L903 C902 C901 C903 L904 Resolder or change U102 Resolder or change F900 Resolder or change U600 CONTINOUS RX ON RF INPUT 62CH AMP 50dbm Check U101 pin 13 2 8V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 16: ...SGH X461 Flow Chart of Troubleshooting 2 13 ...

Page 17: ...1 pin 19 20 65dBm Yes No No Check U102 pin 16 65 dbm Yes No Yes Check ANT R101 R102 U909 L103 Resolder or change CON900 L903 C902 C901 C903 L904 Resolder or change U102 Resolder or change F900 Resolder or change U600 CONTINOUS RX ON RF INPUT 698CH AMP 50dbm Check U801 pin 13 2 8V Yes Resolder or change U100 Yes No No 1 2 3 4 5 ...

Page 18: ...SGH X461 Flow Chart of Troubleshooting 2 15 ...

Page 19: ...hannel Check ANT R101 R102 U909 L103 No 1 Yes Check U102 pin 12 65 dbm 2 Resolder or change CON900 L903 C902 C901 C903 L904 No Yes Check U102 pin 16 65 dbm Resolder or change U102 No 3 Yes Check U801 pin 19 20 65dBm 4 No Resolder or change F900 Yes Check U801 pin 13 2 8V No Resolder or change U100 5 Yes Resolder or change U600 ...

Page 20: ...SGH X461 Flow Chart of Troubleshooting 2 17 ...

Page 21: ...SGH X461 Flow Chart of Troubleshooting 2 18 ...

Page 22: ...DAC 554 CODE APPLIED CH 62ch RBW 100KHz VBW 100KHz SPAN 10MHz REF LEV 10dBm ATT 20dB U102 pin 11 about 4 5dbm Yes No Yes U102 pin 17 3 7V U801 check change No Battery U100 check change Yes U102 pin 18 1 2V No U100 check Yes U102 pin 6 3V No U100 check U801 pin 12 13 28 29 2 8V U102 change or resolder U100 change or resolder No Yes U801 change or resolder Yes U102 pin 12 about 5dbm No Yes No 1 2 3 ...

Page 23: ...SGH X461 Flow Chart of Troubleshooting 2 20 ...

Page 24: ...Yes U102 pin 17 3 7V No Yes U102 pin 18 1 2V No Yes U102 pin 16 about 5dbm No Yes U102 pin 6 3V No U801 pin 12 13 28 29 2 9V Yes No U102 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 c...

Page 25: ...SGH X461 Flow Chart of Troubleshooting 2 22 ...

Page 26: ... without Samsung s authorization 3 SGH X461 Exploded View and its Parts list 3 1 Cellular phone Exploded View QWD01 QFU01 QPC01 QFL01 QCR04 QSC07 QMW02 QSP01 QFR01 QRF03 QMI03 QKP01 QMI01 QME01 QIF01 QCR04 QBA01 QHI01 QMP01 QAN10 QVK01 QAN02 QRE01 QRF01 QSC08 QSC05 QVO01 QSC14 QLC01 QMO01 ...

Page 27: ... METAL DOME GH59 03024A QMI01 MICROPHONE ASSY SGHX460 GH30 00119A QMO01 MOTOR DC SGHZ130 GH31 00154C QMP01 PBA MAIN SGHX461 GH92 02648A QMW02 PCT COVER MAIN WINDOW GH72 29259A QPC01 PCB CON TO CON GH41 01180A QRE01 MEC CASE REAR GH75 09264A QRF01 MPR TAPE RF SHEET GH74 21105A QSC05 MPR TAPE FOLDER SIDE L GH74 21104A QSC07 MPR TAPE COVER SCREW L GH74 21102A QSC08 MPR TAPE COVER SCREW R GH74 21103A ...

Page 28: ...SHION CASE EU GH69 03795A IPR LOCKER SPRING GH70 00228A MPR MAIN WIN BOHO VINYL GH74 09036A MPR BOHO VINYL W SUB OUT GH74 09046A MPR LOWER BOHO VINYL GH74 09047A MPR BOHO VINYL SUB WIN R GH74 13248A MPR BOHO VINYL REAR GH74 14235A MPR TAPE VOLUME KEY GH74 17547A MPR PORON MOTOR GH74 19143A MPR TAPE IC A GH74 22279A MPR TAPE IC A GH74 22279A MPR CUSHION CONT REAR GH74 22281A MPR TAPE GASKET PCB A G...

Page 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 5 DATA CABLE GH39 00127A 3 3 1 RF Test Cable GH39 00283A 3 3 2 Test Cable GH39 00304A 3 3 6 TA GH44 00954A ...

Page 30: ...SA C118 C CER CHIP 2203 002709 SNA C119 C CER CHIP 2203 000254 SA C120 C CER CHIP 2203 005819 SA C123 C CER CHIP 2203 005617 SNA C124 C TA CHIP 2404 001415 SA C125 C TA CHIP 2404 001240 SA C126 C CER CHIP 2203 006183 SA C127 C CER CHIP 2203 006183 SA C200 C CER CHIP 2203 000254 SA C201 C CER CHIP 2203 005482 SA C202 C CER CHIP 2203 005482 SA C203 C CER CHIP 2203 000359 SA C204 C CER CHIP 2203 0003...

Page 31: ...C CER CHIP 2203 000812 SA C431 C CER CHIP 2203 001072 SA C432 C CER CHIP 2203 001072 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 000254 SA C601 C CER CHIP 2203 000254 SA C602 C CER CHIP 2203 000254 SA C603 C CER CHIP 2203 000254 SA C604 C CER CHIP 2203 006260 SA C605 C CER CHIP 2203 002709 SNA...

Page 32: ... SA C823 C CER CHIP 2203 005482 SA C824 C CER CHIP 2203 000386 SA C825 C CER CHIP 2203 001412 SA C826 C CER CHIP 2203 000254 SA C827 C CER CHIP 2203 000278 SA C828 C CER CHIP 2203 005482 SA CN100 CONNECTOR CARD EDGE 3709 001336 SA CN401 JACK EAR PHONE 3722 002067 SA CON800 CONNECTOR COAXIAL 3705 001358 SA D200 DIODE TVS 0406 001231 SA D600 DIODE TVS 0406 001231 SA D601 DIODE TVS 0406 001231 SA D60...

Page 33: ...ED709 LED 0601 002037 SA LED710 LED 0601 002037 SA LED711 LED 0601 002037 SA OSC600 CRYSTAL SMD 2801 003856 SA OSC800 CRYSTAL SMD 2801 004426 SA Q100 TR DIGITAL 0504 000168 SA Q200 FET SILICON 0505 001518 SA Q400 TR SMALL SIGNAL 0501 000225 SA R103 R CHIP 2007 000172 SA R105 R CHIP 2007 000172 SA R106 R CHIP 2007 000162 SA R108 R CHIP 2007 007142 SA R109 R CHIP 2007 000154 SA R110 R CHIP 2007 0001...

Page 34: ... R CHIP 2007 007021 SA R406 R CHIP 2007 001329 SA R407 R CHIP 2007 000171 SA R408 R CHIP 2007 000151 SA R409 R CHIP 2007 001325 SA R410 R CHIP 2007 007107 SA R411 R CHIP 2007 007142 SA R412 R CHIP 2007 000148 SA R413 R CHIP 2007 007142 SA R414 R CHIP 2007 007107 SA R415 R CHIP 2007 001320 SA R416 R CHIP 2007 000142 SNA R417 R CHIP 2007 001317 SA R418 R CHIP 2007 000171 SA R419 R CHIP 2007 007590 S...

Page 35: ...IP 2007 001305 SA R717 R CHIP 2007 001305 SA R718 R CHIP 2007 001298 SA R719 R CHIP 2007 001298 SA R720 R CHIP 2007 001298 SA R800 R CHIP 2007 001298 SA R801 R CHIP 2007 002970 SA R802 R CHIP 2007 000171 SA R803 R CHIP 2007 007306 SA R804 R CHIP 2007 000171 SA R805 R CHIP 2007 002797 SA R806 R CHIP 2007 000148 SA R807 R CHIP 2007 001308 SA R808 R CHIP 2007 000171 SA TH300 THERMISTOR NTC 1404 00122...

Page 36: ...10 VARISTOR 1405 001082 SA V411 VARISTOR 1405 001082 SA VR200 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...

Page 37: ...SAMSUNG Proprietary Contents may change without notice SGH X461 Main Electrical Parts List 4 8 This Document can not be used without Samsung s authorization ...

Page 38: ...SAMSUNG Proprietary Contents may change without notice 5 SGH X461 PCB Diagrams 5 1 This Document can not be used without Samsung s authorization ...

Page 39: ...SAMSUNG Proprietary Contents may change without notice SGH X461 PCB Diagrams 5 2 This Document can not be used without Samsung s authorization ...

Page 40: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 6 SGH X461 Block Diagrams 6 1 ...

Page 41: ...SAMSUNG Proprietary Contents may change without notice SGH X461 Block Diagrams 6 2 This Document can not be used without Samsung s authorization ...

Page 42: ...molding damage 1 2 3 4 5 6 1 It uses assembly stick and the HOOK of the right side lower part confidential talk it disjoints with the outer side which it will call 2 The HOOK gets wider and it catches it lifts it disjoints with REAR by the hand 1 After connector we disjointing PBA 2 Remove the foreign object projection Tape 3 Remove the Key Pad by using a pinset 1 Push the hinge and disjoint from ...

Page 43: ...cratch and molding damage 1 Be care of scratch and molding damage 1 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 Remove a Motor tape by using a pinset 1 Remove a speaker by using a pinset 1 Seperate the LCD Assembley from the folder Lower 1 Remove the insulated tape 1 Remove the CON TO CON ...

Page 44: ...damage 1 Be care of wire arrangement and damage 1 Be care of wire arrangement and damage 1 2 3 4 5 6 1 Stick the insulated tape with arrangement of this picture 2 Push the tape smoothly 1 Insert the FPCB at hole and fixed LCD 1 Wire must not rid on LCD bracket guide The wire arrangement must be like this picture 1 Inter a Speaker and pushing 1 Insert the CON TO CON into the LCD connector 1 Insert ...

Page 45: ...rrangement and damage 1 Be care of wire arrangement and damage 1 Be care of wire arrangement and damage 1 Be care of wire arrangement and damage 7 8 9 10 1 Insert the screw and put on the screw cap 1 Insert Folder hinge into Front 1 Sticking the foreign object projection Tape by using a pinset 1 Insert Keypad and Side Key 1 Inter a PBA into the Front and assembling connector 11 12 1 Push the in di...

Page 46: ... s authorization SAMSUNG Proprietary Contents may change Without notice 7 5 1 Be care of wire arrangement and damage 1 Be care of wire arrangement and damage 13 14 1 Insert the the FRONT HOOK to the REAR HOOK it s same process right and left 1 Sticking a screw this 4 point at the Rear ...

Page 47: ...SGH X461 Exploded and assembling View This Document can not be used without Samsung s authorization SAMSUNG Proprietary Contents may change Without notice 7 6 ...

Page 48: ...tronics Co Ltd Code No GH68 11295A 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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