Samsung SGH-E300, Service Manual

Page 1: ...GSM TELEPHONE SGH E300 GSM TELEPHONE CONTENTS 1 Specification 2 Flow Chart of Troubleshooting 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams SERVICE Manual ...

Page 2: ...805 1880 ARFCN range 1 124 0 124 975 1023 512 885 Tx Rx spacing 45MHz 45MHz 95MHz Mod Bit rate Bit Period 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 Modulation 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 13dBm 33dBm 5dBm 30dBm 0dBm Power Class 5pcl 15pcl 5pcl 19pcl 0pcl 15pcl Sensitivity 102dBm 102dBm 100dBm ...

Page 3: ...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 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 2 GSM TX power class ...

Page 4: ...e than 100mA Power On does not work Check the Voltage more than 3 3V Download again Charge the Battery Check the pin 11 of U102 is more than 2 8V Check U102 and C117 U102 pin 33 39 2 8V Check U102 and C116 Check the clock signal at pin4 of OSC801 Freq 13MHz Vrms 300mV Vpp is around 900mVpp Check the clock generation circuit Check the initial operation END No Yes Yes Yes Yes Yes Yes No No No No U10...

Page 5: ... U701 Check the pin 4 of OSC801 is around 2 8V Check the soldered status of OSC801 R801 U102 Yes No Yes Check LCD connector CN201 and resolder bridge Yes No Check the pin 1 of CN100 voltage 3V Phone can t access SIM card Check the SIM connector s CN100 connection to SIM card Check the circuit related to U102 Resolder or change CN100 Check the circuit around CN100 input circuitry END No Yes Yes Yes...

Page 6: ...4 Charging Part Check the pin 17 18 of CN300 is TA_VEXT 4 Abnormal charging part Check the pin 2 of Q102 is low Replace TA Check CN300 Check the Q102 Check the Q100 END No Yes Yes Yes Yes No No Check the pin 3 of Q100 is low Check the pin 5 of Q102 is 3 2 4 2V Check the Q102 No Yes Check the ICHRG is 1V during charging and around 180mV full charging No Resolder or change R102 Yes ...

Page 7: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 4 This Document can not be used without Samsung s authorization Picture 1 ...

Page 8: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 5 This Document can not be used without Samsung s authorization Picture 2 ...

Page 9: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 6 This Document can not be used without Samsung s authorization Picture 3 ...

Page 10: ...one Microphone does not work Check the reference voltage on mic path C431 2 5 V Resolder microphone Resolder or change R424 C431 R413 C410 R408 R411 END No Yes Yes Yes Yes No Is microphone ok No Check U701 Check the connection from CN201 to LCD module Speaker does not work Check the PIN 4 of U401 High and U409 High Check the circuit related to U401 Check U601 Is speaker ok Check U701 END No Yes Ye...

Page 11: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 8 This Document can not be used without Samsung s authorization ...

Page 12: ...ng and Circuit Diagrams 2 9 This Document can not be used without Samsung s authorization 7 Camera Part Camera function dose not work Yes Check the connect CN201 Yes U1002 PIN 9 10 2 8V Yes R1020 25MHz Connect the camera module Check U1002 and C1022 C1021 Check U1001 and OSC1000 No No No END ...

Page 13: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 10 This Document can not be used without Samsung s authorization ...

Page 14: ...PUT 62CH AMP 50dBm NORMAL CONDITION catch the channel CHECK ANT701 L905 contact U800 pin 9 32 2 8V F900 CHECK pin2 3 65dBm U800 CHECK pin20 21 65dBm C900 F901 resolder or change F900 resolder or change C912 C913 L901 resolder or change U102 pin39 C112 change or resolder U800 CHECK pin 8 13MHz Vp p 950mV OSC801 change or resolder U800 resolder or change U701 CHECK U800 pin1 2 3 28 Vp p 120mV NO YES...

Page 15: ... 698CH AMP 50dBm NORMAL CONDITION catch the channel CHECK ANT701 L905 contact U800 pin 9 32 2 8V F900 CHECK pin4 5 65dBm U800 CHECK pin18 19 65dBm C900 F901 resolder or change F900 resolder or change C914 C915 L902 resolder or change U102 pin39 C112 change or resolder U800 CHECK pin 8 13MHz Vp p 950mV OSC801 change or resolder U800 resolder or change U701 CHECK U800 pin1 2 3 28 Vp p 120mV NO YES N...

Page 16: ...heck change U900 pin8 20 3 7 V NO NO YES YES YES NO NO BATTERY U102 check change U900 pin 22 1 6V YES NO U900 pin6 about 5dBm YES U900 pin 2 3V YES YES U900 change or resolder NO U701 check U701 check NO U800 pin9 32 2 8V U102 pin39 C112 change or resolder YES U800 pin8 13MHz Vp p 950mV U800 pin4 5 6 7 100mV YES U701 change or resolder NO NO U800 change or resolder YES NO OSC801 change or resolder...

Page 17: ...change U900 pin8 20 3 7 V NO NO YES YES YES NO NO BATTERY U102 check change U900 pin 22 1 4V YES NO U900 pin5 about 5dBm YES U900 pin 2 3V YES YES U900 change or resolder NO U701 check U701 check NO U800 pin9 32 2 8V U102 pin39 C112 change or resolder YES U800 pin8 13MHz Vp p 950mV U800 pin4 5 6 7 100mV YES U701 change or resolder NO NO U800 change or resolder YES NO OSC801 change or resolder CONT...

Page 18: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 15 This Document can not be used without Samsung s authorization Picture 1 ...

Page 19: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 16 This Document can not be used without Samsung s authorization Picture 2 ...

Page 20: ...SAMSUNG Proprietary Contents may change without notice SGH E300 Flow Chart of Troubleshooting and Circuit Diagrams 2 17 This Document can not be used without Samsung s authorization Picture 3 ...

Page 21: ...ed View and its Parts list 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View QSC08 QCR04 QSC05 QFU01 QLC66 QSP01 QMO02 QFR01 QKP01 QMP01 QAN01 QRE01 QBA21 QCK01 QCR06 QRF01 QVO01 QCA01 QMW01 QFL01 QIF02 QVK01 QMI01 QME02 QSC03 ...

Page 22: ...479 QSC05 SCREW SHEET L GH74 06866A QSC08 SCREW SHEET R GH74 06867A QFL01 F LOWER ASSY GH75 04392A QMW01 LCD WINDOW ASSY GH75 03874A QFR01 FRONT ASSY GH75 03867A QVO01 VOLKEY GH75 04736A QKP01 KEYPAD ASSY GH75 03939A QMP01 PBA MAIN GH92 01581A QVK01 UNIT VOLKEY GH59 01016A QME02 UNIT METAL DOME GH59 01097A QMI01 MICROPHONE ASSY GH30 00062A QIF02 IF COER GH73 01394A QCK01 CAMKEY GH75 04735A QAN01 A...

Page 23: ... Exploded view and its Part list 3 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 GH39 00127A 3 3 Serial Cable 3 4 Power Supply Cable 3 5 DATA CABLE GH39 00159A 3 6 TA GH44 00184A ...

Page 24: ...02 1203 002902 U102 1204 001984 U701 1204 002161 U402 1209 001219 U602 2007 000070 L905 2007 000138 R804 2007 000140 R304 R305 R306 R307 2007 000140 R308 R309 R310 R312 2007 000140 R313 R420 R424 SEC Code Design LOC 2007 000141 R413 R415 2007 000148 R1001 R1002 R112 2007 000148 R408 R416 R423 2007 000154 R419 2007 000157 R301 R302 R303 R501 2007 000157 R601 R604 R605 R314 2007 000159 R411 R418 200...

Page 25: ...C102 C205 C206 C301 2203 005061 C302 C303 C304 C402 2203 005061 C404 C409 C417 C507 2203 005061 C608 C706 C432 2203 005065 C410 C423 C705 2203 005138 C233 C250 2203 005234 C912 C913 C914 C915 2203 005480 C607 C708 C709 SEC Code Design LOC 2203 005482 C1009 C1014 C614 2203 005482 C1019 C1020 C108 2203 005496 C601 C602 C704 2203 005509 C203 C503 C504 C505 2203 005509 C506 2203 005571 C1022 2203 0056...

Page 26: ...prietary Contents may change without notice SGH E300 Electrical Parts List 4 3 This Document can not be used without Samsung s authorization SEC Code Design LOC GH09 00025A U601 GH13 00020A U1001 NEW F000001 F900 ...

Page 27: ...Solution Block Diagram Antenna ASM RF FILTER π 2 RF PLL PGA SERIAL DATA INTERFACE GSM 890MHz 915MHz PAM GSM 925MHz 960MHz I Q CSP1093 TRIDENT DSP16000 ARM7TDMI UI SERIAL DATA CLK LE RF FILTER DCS 1805MHz 1880MHz L N A PGA A D C A D C IF PLL DCS 1710MHz 1785MHz 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 Si 4205 ...

Page 28: ...X VCO IF VCO GPIO POWER DC DC CHARGER SIM X TAL 13MHz RS232 CSP1093 Audio Part LCD KEYBOARD SRAM 16M FLASH ROM 64M 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 Programmable ...

Page 29: ...613 C614 C615 C701 C704 C705 C706 C707 C708 C709 C710 C711 C712 C801 C802 C803 C804 C805 C806 C807 C808 C809 C810 C811 C812 C813 C900 C901 C902 C903 C904 C905 C906 C907 C909 C910 C911 C912 C913 C914 C915 C916 C917 C918 C919 CN101 CN201 CN300 CN400 F900 F901 G1 G2 G3 G4 L402 L403 L900 L901 L902 L903 L905 LED217 M101 OSC1000 OSC601 OSC801 PWM Q100 Q103 Q401 R1001 R1002 R1003 R1008 R101 R1011 R1014 R...

Page 30: ...21 C231 C233 C242 C250 C253 C255 C404 C411 C415 CLEAR CN203 DOWN END_PWD F1 F2 F3 F4 F_WE_1 G ND_2 I LED201 LED202 LED203 LED204 LED205 LED207 LED208 LED210 LED211 LED212 LED213 LED214 LED218 LED219 LED220 LED221 LED222 LEFT MIC401 Q102 Q104 R103 R112 R401 R403 RIGHT SEND SIDE TCK_1 TDI_1 TDO_1 TMS_1 TP602 TRST_1 U202 U401 UP V301 ZD201 ZD202 ZD203 ZD204 ZD301 ZD302 ZD303 ZD304 ZD305 ZD306 ZD307 Z...

Page 31: ...onics Co Ltd AUG 2004 Printed in Korea Code No GH68 05427A 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 ...