Samsung SGH SGH X105 Service Manual Download Page 15 | Manualshive

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SAMSUNG Proprietary-Contents may change without notice

SGH-X105 Flow Chart of Troubleshooting

4-

5

This Document can not be used without Samsung's authorization

4. Charging Part

The pin #17, #18 of

CN201 is TA_VEXT =

5V?

Abnormal charging operation

The pin #3 of U101 is

"low"?

Replace TA or Check CN201

Check the U101

Check the Q101

END

No

Yes

Yes

Yes

No

No

The pin #3 of Q101 is

"low"?

No

Solder again or change R130

Yes

The ICHRG = 1V(during

charging) and = 180mV(full

charging)?

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Summary of Contents for SGH SGH X105

Page 1: ...SGH X105 SERVICE Manual GSM TELEPHONE CONTENTS 1 Specification 2 Exploded Views and Parts List 3 Electrical Parts List 4 Flow Chart of Troubleshooting 5 Block Diagrams 6 PCB Diagrams GSM TELEPHONE ...

Page 2: ...onics Co Ltd AUG 2003 Printed in Korea Code No GH68 04199A 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 ...

Page 3: ...24 975 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 ...

Page 4: ...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 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 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm 2 GSM TX power class ...

Page 5: ...y Contents may change without notice 2 SGH X105 Exploded View and its Parts list 2 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View 1 5 2 7 8 9 4 3 1 3 6 3 3 3 4 3 2 3 5 3 6 ...

Page 6: ...C CODE Remark 1 FRONT COVER GH75 03140A 2 KEYPAD GH75 03142A 3 MAIN PBA GH92 01510A 3 1 MIC GH30 00041A 3 2 DOME SHEET GH59 00942A 3 3 SCREW 6001 001479 3 4 INTENNA GH42 00314A 3 5 LCD GH07 00385A 3 6 SPEAKER 3001 001442 4 CONNECTOR COVER GH73 02097A 5 VOLUME KEY GH75 03143A 6 MOTOR GH31 00062A 7 REAR COVER GH75 03141A 8 SCREW 6001 001479 9 BATTERY GH43 00980A 2 Cellular phone Parts list ...

Page 7: ... Exploded view and its Part list 2 3 This Document can not be used without Samsung s authorization 3 Test Jig GH80 00865A 3 1 RF Test Cable GH39 00090A 3 2 Test Cable GH00 00127A 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00159A 3 6 TA GH44 00184A ...

Page 8: ...000438 C219 C430 C432 C434 2203 005061 C220 C224 C262 C309 2203 000233 C221 C236 C319 C321 2203 005065 C222 C225 C252 2203 005496 C223 C301 C302 2203 000359 C228 2203 000278 C229 C246 C257 C258 2203 000254 C230 C231 C232 C233 2203 000854 C235 C253 C261 2203 000254 C237 C238 C239 C240 2203 005052 C242 SEC Code Design LOC 2404 001105 C245 C250 2404 001282 C247 2203 001072 C248 C251 2203 000386 C254 ...

Page 9: ...6 R127 R128 2007 007142 R129 R130 R306 2007 007139 R131 2007 001323 R132 2007 002965 R133 R135 2007 000151 R134 R204 R205 R208 2007 000162 R202 R212 R218 R234 2007 007014 R203 2007 000775 R206 2007 001325 R210 R211 SEC Code Design LOC 2007 000148 R213 R230 R415 2007 000636 R214 2007 007200 R215 R216 2007 000141 R219 R225 2007 001119 R220 2007 000171 R221 R222 R224 R236 2007 000140 R223 R231 R232 R...

Page 10: ...0 1204 001261 U201 GH09 00024A U301 1209 001219 U302 1109 001278 U304 1205 002185 U400 1205 002268 U401 1201 001954 U402 1209 001434 U403 0801 002345 U404 1405 001112 ZD101 ZD113 0404 001172 ZD111 0406 001167 ZD112 0403 001446 ZD114 0403 001427 ZD205 1405 001082 ZD206 ZD207 ZD208 1405 001018 ZD209 ZD219 1405 001082 ZD218 ZD404 ZD409 1405 001082 ZD410 ZD411 0406 001083 ZD412 ZD413 ZD414 ...

Page 11: ...oltage 3 3V Download again Charge the Battery pin 11 2 8V Check U100 and C116 pin 39 and pin 33 2 8V Check U100 and C115 Check the clock signal at pin4 of OSC400 Freq 13MHz Vrms 300mV and Vpp 900mVpp Check the clock generation circuit related to OSC400 U401 pin 19 END No Yes Yes Yes Yes Yes No No No No pin 9 1 8V No Yes Check the V bat Voltage Check the pin of U100 Check the initial operation Chec...

Page 12: ...ure Check the U100 If it has some problem it has to be replaced END No Yes Is the pin 19 of U100 Low High Yes Check the U301 There is 32 768kHz wave forms at the C320 and C322 Check the LCD Part Yes No No Yes Yes Yes The Voltage is High at the C111 C118 Check the Audio Part No Check the U100 If it has some problem it has to be replaced Check the U200 The pin 25 of U100 is High Check the U100 LCD d...

Page 13: ...roubleshooting 4 3 This Document can not be used without Samsung s authorization 3 Sim Part Is there any Signals pin 52 53 54 of U100 Insert SIM is displayed on the LCD Check the U301 Check the SIM Card END No Yes Yes Yes No Check the U100 Is there any Signals pin 1 2 3 4 of CN100 ...

Page 14: ...W M 55 13 RTC_ALM N SCLK 17 SDI 15 SDO 16 SIM_CLK 50 51 SIM_IO 49 INTRQ 7 LED1_DRV LED2_DRV 8 PSW1_BUF 20 21 PWR_KEEP PWR_SW1 N 46 47 PWR_SW2 RESETN 19 5 63 GND GND 64 GND 65 66 GND 60 GNDD GNDD1 6 28 GND Q 14 EN_5A EN_5B 27 GND 57 GND 67 68 GND 58 GND GND 59 61 GND GND 62 ADC_TRIG BTEMP 43 29 CREF 18 CSN 22 EN_3 EN_4 0 23 24 EN_4 1 EN_5 25 26 U100 ADC_AUX1 44 45 ADC_AUX2 56 C107 100NF C138 33PF 3...

Page 15: ...ithout Samsung s authorization 4 Charging Part The pin 17 18 of CN201 is TA_VEXT 5V Abnormal charging operation The pin 3 of U101 is low Replace TA or Check CN201 Check the U101 Check the Q101 END No Yes Yes Yes No No The pin 3 of Q101 is low No Solder again or change R130 Yes The ICHRG 1V during charging and 180mV full charging ...

Page 16: ...bleshooting 4 6 This Document can not be used without Samsung s authorization U102 2 5 6 3 1 4 4 Q101 3 1 2 5 6 U101 6 DRIVE 2 GND ISENSE 1 4 PROG VCC 3 VSENSE 5 VBAT 47K 1 R131 10UF C120 10V 1 3 2 Q102 10K 1 R129 10V 10UF C119 10K 1 R130 3K R132 CHG_DET TA_VEXT CHG_ON TA_VEXT ICHRG ...

Page 17: ...be used without Samsung s authorization 5 Microphone Part Is the assembled status of microphone O K Microphone does not work C247 2 5V Reassemble the microphone Solder the microphone again or Replace C225 R220 C247 R219 R214 END No Yes Yes Yes Yes No Is microphone ok No Check U200 Check the reference voltage on mic path ...

Page 18: ...0K 10PF C257 C228 VCCA 150PF R213 R219 2 2K 10K ZD411 C245 680 R220 6 3V 10UF NC C243 C248 56PF 39PF C235 10PF C229 C246 10PF R230 10K 0 R217 NC C249 MAIN_MIC ICEBERG FPCB C255 27PF 15PF C254 1K R223 180PF C260 VCCA R240 82K 1 C225 1UF C226 33PF ZD404 NC C256 VCCD C252 1UF C258 10PF 330K ZD410 6 8PF R242 C259 0 R222 R225 2 2K R214 270K 3 2 ZD409 Q400 1 33UF C247 39PF C253 3 1 100K R234 CN401 2 6 5...

Page 19: ... be used without Samsung s authorization 6 Speaker Part Receiver Probe power of C262 O K Can not voice from receiver Cheak power supply for U200 VCCD VCCA O K Check U100 YES No Yes No Receiver U200 O K Replace Receiver Receiver U301 Yes END No RECN RECEIVE R ZD207 ZD206 RECP 1 1 2 2 10 R251 10 R249 0 R250 AOUTAN AOUTAP ...

Page 20: ...ting 4 10 This Document can not be used without Samsung s authorization 7 Speaker Part Loud speaker Check signals of CN205 O K No Melody from Loud Speaker Check Power of U201 PIN 15 32 6 7 O K Check data lines of U200 O K END Yes Replace Speaker YES No Check U100 No No Check LCD and Memory ...

Page 21: ...VSS 29 CS 14 EQ3 10 HPOUT L MONO HPOUT R 11 32 IOVDD 2 LED MTR 19 NC 56 PLLC 25 24 D3 D4 23 22 D5 21 D6 20 D7 12 EQ1 EQ2 13 U201 A0 30 1 CLKI 27 D0 D1 26 D2 VCCD R211 R210 3 3K C214 100NF 3 3K C213 100PF NC C201 R207 NC CN205 1 1 270PF C206 C202 27PF 6 3V 4 7UF C218 R205 15K 27PF C203 22NF C208 VBAT 100NF C220 2 NC C210 33K 1NF C219 R206 R203 51K VCCD 100NF C207 0 R209 DL 0 A 0 VIB_EN DL 7 DL 6 DL...

Page 22: ...hange F400 resolder or change C408 C410 L402 resolder or change U100pin33 C118 check or resolder U403 CHECK pin 7 13MHz Vp p 860mV OSC400 CHECK pin 4 clean 3V U403 change or resolder U401 CHECK pin 14 23 26 32 clean 2 8V C438 R416 resolder OSC400 change or resolder U100pin33 C111 check or resolder U401 pin3 4 Vp p 240mV U400 CHECK pin6 20 2 8V U400 resolder or change U401 pin1 2 Vp p 250mV U401 re...

Page 23: ...ES U402 change NO U200 check U200 check change YES NO U401 pin14 23 26 32 2 8V U100pin39 C111 change or resolder YES U401 pin9 10 12 13 20dBm U401 pin5 6 7 8 1 7V YES U200 change NO NO U402 change or resolder YES U403pin5 25 28 3V NO U100 pin33 C118 change or resolder NO U403 pin 7 13MHz Vp p 950mV YES U403 pin9 10 11 1213 3V YES YES U401 change or resolder OSC400 pin 3 13MHz Vp p 950mV OSC400 cha...

Page 24: ...change F400 resolder or change F401 resolder or change C415 U415 L404 resolder or change U100pin33 C118 check or resolder U403 CHECK pin 7 13MHz Vp p 860mV OSC400 CHECK pin 4 clean 3V U403 change or resolder U401 CHECK pin 14 23 26 32 clean 2 8V C439 resolder OSC400 change or resolder U100pin39 C111 check or resolder U401 pin3 4 Vp p 240mV U400 CHECK pin6 20 2 8V U400 resolder or change U401 pin1 ...

Page 25: ...ange or resolder NO U200 check YES U200 check NO U401 pin14 23 26 32 2 8V U100 pin39 C111 change or resolder YES U401 pin9 10 12 13 20dBm U401 pin5 6 7 8 1 7V YES U200 change NO NO U402 change or resolder YES U403pin5 25 28 3V NO U100 pin33 C118 change or resolder NO U403 pin 7 13MHz Vp p 950mV YES U403 pin9 10 11 1213 3V YES YES U401 change or resolder OSC400 pin 3 13MHz Vp p 950mV OSC400 change ...

Page 26: ...436 1NF 33PF C406 VOSC 270 R409 180 R405 R408 270 R404 100PF C419 180 22NF C431 20 6 3V R403 VDDC 7 XI N 19 XOUT 100UF C420 RXIP 3 RXQN RXQP 2 17 SCLK SD I 18 15 SDO SENB 16 VDDA 20 6 GND GND 22 GND 23 GND 24 ION 12 11 IOP PDNB 14 5 RXIN 4 10 CKN CKP 9 1 GND 8 GND 13 GND 21 U400 R401 0 33nH L406 VOS C L404 C437 10NF 6 8nH VRF C440 100PF 3 9nH L405 VOSC NC L401 28 25 VDDR XI N 7 VRF C402 100PF 16 2...

Page 27: ...on Block Diagram Antenna ASM RF FILTER RF FILTER SI4200 SI4133T π 2 RF PLL PGA SERIAL DATA INTERFACE GSM 890MHz 915MHz PCS 1850MHz 1910MHz PAM GSM 925MHz 960MHz PCS 1930MHz 1990MHz I Q CSP1093 TRIDENT DSP16000 ARM7TDMI UI SERIAL DATA CLK LE LNA PGA A D C A D C IF PLL D E T 100KHz CHANNEL FILTER D A C D A C PGA PGA R X TCVCXO 13 MHz C L K A F C T X I Q SI4201 ...

Page 28: ...IN VCO TX VCO IF VCO GPIO POWER DC DC CHARGER SIM X TAL 13MHz RS232 CSP1093 Audio Part LCD KEYBOARD SRAM 16M FLASH ROM 128M TXIP TXIN TXQP TXQN RXIP RXIN RXQP RXQN SERCK SERLE SERDA RFOVL TXP OCTL RF DIRVER TXI Q RX I Q TXP SERCK SERLE SERDA OCTL IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB IO RWN AB 8 0 DB 15 0 INT1 IRQx PAx RSTB ARM JTAG ICE DAICK DAIRN DAIDO DAIDI DAI DSPJTAG JTAG GPRS ACC PPI Prog...

Page 29: ...05 C406 C407 C408 C409 C410 C411 C414 C415 C416 C417 C418 C419 C420 C421 C422 C423 C424 C425 C426 C427 C428 C429 C430 C431 C432 C433 C434 C435 C436 C437 C438 C439 C440 CN100 CN201 CN202 CN205 CN400 CN401 D100 F105 F106 F107 F108 F109 F400 F401 G1 G2 G3 G4 L100 L301 L401 L402 L404 L405 L406 L407 M1 OSC300 OSC400 Q100 Q101 Q102 Q200 Q201 Q203 Q204 Q205 Q400 R112 R113 R114 R115 R129 R130 R131 R132 R1...

Page 30: ...45 C146 C147 C148 C149 C150 C151 C152 C153 C154 C155 C156 C157 C158 C159 C160 C161 C162 CN101 DOWN GND1 LED100 LED101 LED102 LED103 LED106 LED107 LED108 LED109 LED110 LED111 LED112 LED113 LED200 LEFT MAIN_MIC MENU PWR R101 R102 R103 R104 R105 R106 R107 R108 R109 R111 R117 R118 R119 R120 R121 R122 R123 R124 R125 R126 R127 R128 R244 R245 R249 R250 R251 RECP RIGHT SEND SHARP STO T1 T2 T3 T4 T5 T6 TP7...

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