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Samsung SGH-C100, Service Manual

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SAMSUNG Proprietary-Contents may change without notice

SGH-C100 Flow Chart of Troubleshooting

4-

16

This Document can not be used without Samsung's authorization

13. DCS Transmitter

Pin 9 of U104

≥27dBm

TX On

(Level : 0)

Battery Voltage : 3.8V

Pin 3 of U103

≥27dBm

Pin 1 of U100

≥ 9dBm

Yes

No

No

Pin 12 of U102

≥27dBm

Yes

No

Yes

No

Yes

Check the U104

Check the U103

Check U102

Check U100

END

Pin 2 of

CN100

≥27dBm

No

Check the CN100

Summary of Contents for SGH-C100

Page 1: ...SGH C100 SERVICE Manual GSM TELEPHONE CONTENTS 1 Specification 2 Exploded Views and Parts List 3 Electrical Parts List 4 Flow Chart of Troubleshooting 5 Block Diagram 6 PCB Diagrams GSM TELEPHONE ...

Page 2: ...15 925 960 1710 1785 1805 1880 ARFCN range 1 124 0 124 975 1023 512 885 T x Rx spacing 45MHz 45MHz 95MHz Mod B it rate B it Pe ri od 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us T ime Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modula tion 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 13dBm 33dBm 5dBm 30dBm 0dBm Powe r C lass 5pcl 15pcl 5pcl 19pcl 0pcl 15pcl Se...

Page 3: ...el 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 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 3dBm 18 7 3 dBm 19 5 3 dBm ...

Page 4: ...y Contents may change without notice 2 SGH C100 Exploded View and its Parts list 2 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View 1 4 9 2 3 6 10 5 8 11 1 1 12 16 13 15 14 7 ...

Page 5: ...C CODE REMARK 1 FRONT COVER GH75 02873A 1 1 WINDOW LCD GH72 07226A 2 MOTOR GH31 00055A 3 SPEAKER 3001 001408 4 KEYPAD GH72 02933A 5 MAIN PBA GH92 01375A 6 LCD GH07 00315A 7 SCREW 6001 001645 8 METAL DOME GH59 00695A 9 MIC HOLDER GH73 01867A 10 MIC GH30 00020A 11 CONNECTOR COVER GH73 01868A 12 REAR COVER GH75 02874A 13 VOLUME KEY GH75 02934A 14 SCREW 6001 001654 15 RF COVER GH73 01869A 16 BATTERY G...

Page 6: ... Exploded view and its Part list 2 3 This Document can not be used without Samsung s authorization 3 Test Jig GH80 01809A 3 1 RF Test Cable GH39 00182A 3 2 Test Cable GH39 00206A 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00203A 3 6 TA GH44 00184A ...

Page 7: ...02677 C140 2203 001385 C141 2203 000438 C144 2203 005061 C201 2203 005482 C202 2203 000812 C203 2203 000812 C204 2203 005061 C205 2203 001383 C207 2203 000812 C209 2203 000278 C210 2203 000812 C212 2203 000278 C213 2404 001151 C214 2203 000654 C215 2203 001239 C216 2203 005061 C217 2203 005065 C218 2203 005061 C219 2203 005061 C220 2203 005061 C221 2203 006090 C223 2203 005482 C224 2203 005483 C22...

Page 8: ...0 3722 002026 CN502 0404 001189 D101 0401 001033 D301 0407 000115 D500 2703 002268 L100 2703 002313 L101 2703 002313 L102 2703 002497 L104 2703 002372 L105 2703 002269 L106 2703 001229 L200 3301 001208 L201 2703 002339 L400 2703 001881 L501 0604 001146 LED300 0601 001602 LED400 0601 001602 LED401 0601 001602 LED405 0601 001602 LED406 0601 001602 LED407 0601 001602 LED408 0601 001602 LED409 0601 00...

Page 9: ...2007 000162 R431 2007 000172 R500 2007 000172 R501 2007 000159 R502 2007 000156 R503 2007 000156 R504 2007 000932 R506 2007 007096 R507 2007 001313 R508 2007 001325 R509 2007 001319 R512 2007 000138 R513 2007 000566 R514 2007 000138 R515 2007 000171 R516 2007 000169 R517 2007 008117 R518 2007 000758 R519 2007 000148 R520 2007 000162 R521 1205 002218 U100 1201 002009 U101 1201 002017 U102 4709 0011...

Page 10: ...100mA POWER ON does not work Check the Voltage of the Battery more than 3 3V Download again Charge the Battery Check the capacitor C236 close by U200 MSD is more than 3 2V Check to the path from CN402 to capacitor C236 close by U200 MSD 2 7V C234 of U200 MSD 2 8V Check the MSD U200 Check the TP222 of U200 MSD is high 2 8V Check the CX805 31P U300 Check the initial operation END No Yes Yes Yes Yes ...

Page 11: ...thorization 2 Initial Initial Failure No No No Check the R209 of U200 is High Check the clock generation circuit related to U200 and OSC200 Check the clock signal s wave at R201 19 5MHz Check the U200 MSD Yes Check the TP234 3 9MHz wave TP220 is High Check the U200 MSD Check the connections and initialization using Factory Test Program Yes END Yes ...

Page 12: ...ter connecting with Battery All 4 terminals in battery should be connected to the phone by using jump wires Check the pin 17 of CN402 is around 5V Abnormal charging part Check the pin 6 of U210 is LOW Check the TA Check the U210 Check the pin 3 of U210 is LOW END No Yes Yes Yes No No Check the pin 3 of U503 is short to ground Yes Check the connections of 4 terminals in battery ...

Page 13: ...SAMSUNG Proprietary Contents may change without notice SGH C100 Flow Chart of Troubleshooting 4 4 This Document can not be used without Samsung s authorization ...

Page 14: ...not be used without Samsung s authorization 4 Sim Test with Sim Check the the voltage at pin 1 5 of CN500 is 2 8V Phone can t access SIM card Check the CN500 s Connection to SIM card Check the circuit related to CN500 Resolder CN500 Check the circuit around U301 MEMORY and data stored in it END No Yes Yes Yes Yes No ...

Page 15: ...SAMSUNG Proprietary Contents may change without notice SGH C100 Flow Chart of Troubleshooting 4 6 This Document can not be used without Samsung s authorization ...

Page 16: ...nt can not be used without Samsung s authorization 5 Microphone Part Call with Sim before testing check the connection from MIC500 MicroPhone does not work Resolder MIC500 Check the Audio loopback by board test program END No Yes Yes check the voltage of C214 2 0V Yes Check the path around MIC bias circuit No ...

Page 17: ...SAMSUNG Proprietary Contents may change without notice SGH C100 Flow Chart of Troubleshooting 4 8 This Document can not be used without Samsung s authorization ...

Page 18: ...on 6 Receiver Call before testing Put sine wave from 8960 and Check the pin 5 7 of U502 is sine wave Receiver does not work Check the pin 3 9 of U502 is sine wave Check U200 and speak related circuit Check U502 and soldering END No Yes Yes No Check the wave of C412 C421 Is Speaker working Check the path from U502 to SPK400 Replace the Speaker No Yes Yes No ...

Page 19: ...Play on 16 poly melody before testing Check the pin1 of U500 s clock 3 9MHz Receiver does not work Check the pin17 18 of U500 is around audio signal 2V Check U200 Check U500 Is Speaker working END No Yes Yes No Replace the Speaker Yes No Check the wave of pin3 9 of U502 Check U502 and soldering No Yes Check the wave of C412 C421 Check the path from U502 to SPK400 No Yes ...

Page 20: ...e used without Samsung s authorization 8 Key Data Input pad See the picture below is high 2 8V Check the Initial Operation END Yes When one of the key is pushed pad is low Yes Check U300 No Replace the Dom Sheet OR Check if the V402 403 404 are opened No Yes Check the Keypad Dom Sheet Replace or Adjust the Keypad Dom Sheet ...

Page 21: ...bleshooting 4 12 This Document can not be used without Samsung s authorization 9 Light Backlight ON mode in the menu Backlight does not work Check the voltage of C403 9V Select backlight ON mode Check the circuit related to U402 END No Yes No LCD backlight on Check the LCD Yes Yes No ...

Page 22: ...3 This Document can not be used without Samsung s authorization 10 GSM Receiver Pin1 of CN100 65dBm RX On RF input 37 CH Amp 60 dBm Pin9 of U104 65dBm Pin11 of U100 65dBm Yes No No Pin7 of U104 65dBm Yes No Yes No Yes Check CN100 Resolder C133 Check the pin 9 of U104 Check U104 Check C140 L104 END ...

Page 23: ...ment can not be used without Samsung s authorization 11 GSM Transmitter Pin 9 of U104 30dBm TX On Level 5 Battery Voltage 3 8V Pin 1 of U103 30dBm Pin64 of U100 9dBm Yes No No Pin 7 of U102 30dBm Yes No Yes No Yes Check the U104 Check the U103 Check U102 Check U100 END Pin 2 of CN100 30dBm No Check the CN100 ...

Page 24: ...his Document can not be used without Samsung s authorization 12 DCS Receiver Pin1 of CN100 65dBm RX On RF input 698 CH Amp 60 dBm Pin9 of U104 65dBm Pin13 of U100 65dBm Yes No No Pin11 of U104 65dBm Yes No Yes No Yes Check CN100 Resolder C133 Check the pin 9 of U104 Check U104 Check C121 C141 L105 END ...

Page 25: ...ment can not be used without Samsung s authorization 13 DCS Transmitter Pin 9 of U104 27dBm TX On Level 0 Battery Voltage 3 8V Pin 3 of U103 27dBm Pin 1 of U100 9dBm Yes No No Pin 12 of U102 27dBm Yes No Yes No Yes Check the U104 Check the U103 Check U102 Check U100 END Pin 2 of CN100 27dBm No Check the CN100 ...

Page 26: ...SAMSUNG Proprietary Contents may change without notice SGH C100 Flow Chart of Troubleshooting 4 17 This Document can not be used without Samsung s authorization U100 L106 56n H ...

Page 27: ...oller Debug Serial Port Serial Data Services Port SIM Interface Serial Bus Clock for Internal Peripherals IrDA Compatible SDS Port 19 5 MHz 32 768 KHz SIM Interface Internal And System Low Drop Out Regulators LDO Battery Charger CX805 Low Speed Serial Interface SPKR O SPKR O MICBIAS MIC IN MIC IN LINE IN LINE IN LINE OUT LINE OUT FLASH SRAM Memory Controrl Logic Sys_Clk Battery Excape Sequence Flo...

Page 28: ...8 C412 C413 C414 C415 C417 C418 C419 C420 C421 C422 C423 C424 C425 C426 C427 C428 C512 C517 C521 C522 CLEAR D301 DOWN H1 H2 H3 H4 H6 L501 LED400 LED401 LED405 LED406 LED407 LED408 LED409 LED410 LED411 LED412 LED413 LED414 LED500 LEFT MENU MIC500 OK PWR R233 R310 R401 R408 R409 R413 R414 R415 R416 R417 R418 R419 R420 R421 R422 R510 R513 R515 R516 RIGHT SEND SH SPK400 U308 U403 UP V402 V403 V404 V40...

Page 29: ...C411 C416 C430 C431 C432 C433 C434 C500 C501 C502 C503 C504 C505 C506 C507 C508 C509 C510 C513 C514 C515 C516 C520 C523 C524 C525 CN100 CN402 CN500 CN502 CON500 D101 D500 GND1 L100 L101 L102 L103 L104 L105 L106 L200 L201 L400 LED300 OSC200 OSC300 Q400 Q500 Q501 R100 R102 R103 R104 R105 R106 R107 R108 R109 R110 R111 R112 R113 R114 R115 R116 R117 R118 R120 R121 R122 R123 R124 R125 R126 R127 R128 R12...

Page 30: ...onics Co Ltd MAY 2003 Printed in Korea Code No GH68 03770A BASIC ⓒ 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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