Samsung SGH-X430, Service Manual

Page 1: ... SERVICE Manual GSM TELEPHONE CONTENTS 1 Specification 2 Circuit Description 3 Flow Chart of Troubleshooting 4 Exploded Views and Parts List 5 Electrical Parts List 6 Block Diagrams 7 PCB Diagrams GSM TELEPHONE ...

Page 2: ...erty of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ELECTRONICS Samsung Electronics Co Ltd December 2003 Printed in Korea Code No GH68 04389A BASIC ⓒ ...

Page 3: ...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 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 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 5: ...TER To convert Electromagnetic Field Wave to Acoustic Wave and then pass the specific frequency band GSM FILTER F100 ð For filtering the frequency band between 925 960 MHz DCS FILTER F101 ð For filtering the frequency band 1805 and 1880 MHz 4 VCTCXO OSC100 To generate the 13MHz reference clock to drive the logic and RF After additional process the reference clock is applied to the U100 Rx IQ demod...

Page 6: ...converts ADC The SI4205 down converts the ADC output to baseband with a digital 100 KHz quadrature LO signal Digital decimation and IIR filters perform channel selection to remove blocking and reference interface signals After channel selection the digital output is scaled with a digital PGA which is controlled with the DGAIN DACs drive a differential analog signal onto the RXIP RXIN RXQP RXQN pin...

Page 7: ...ltage monitor and a thermal monitor support reliable system design These functions work together to ensure proper system behavior during start up or in the event of a fault condition low microprocessor voltage insufficient battery energy or excessive die temperature 2 Battery Charge Management A battery charge management block incorporating an internal PMOS switch and an 8 bit ADC provides fast ef...

Page 8: ...6 initiates the initial process of the LCD 16 bit data lines D 0 D 15 transfers data and commands to LCD through emi_filter Data and commands use A 2 signal If this signal is high Inputs to LCD are commands If it is low Inputs to LCD are data The signal which informs the input or output state to LCD is required But this system is not necessary this signal So CP_WEN signal is used to write data or ...

Page 9: ...IC A3210ELH A magnet under main LCD enables A3210ELH which is on the main PCB 4 EMI Filtering This system uses the EMI Filter to reduce noise from LCD part Some control signals are connected to LCD without EMI filtering 3 IF connetor It is 23 pin connector and uses 18 pin at present They are designed to use SDS DEBUG DLC DETECT JIG_ON VEXT VTEST VF VBATT and GND They connected to power supply IC m...

Page 10: ...multimedia Since the SMAF takes a structure that sets importance on the synchronization between sound and images various contents can be written into it including incoming call melody with words that can be used for traning karaoke and commercial channel that combines texts images and sounds and others The hardware sequencer of YMU762MA3 directly interprets and plays blocks relevant to systhesis p...

Page 11: ... jack Ear mic and CSP1093 need the compatible process Some PPI pins has many special functions CP_KB 0 9 receive the status from key FPCB and are used for the communicatios using data link cable DEBUG_DTR RTS TXD RXD CTS DSR And UP_CS SCLK SDI control signals for PSC2106 are outputted through PPI pins It has signal port for charging CHG_DET SIM_RESET and FLIP_SNS with which we knows open closed st...

Page 12: ... the baseband receive section converting I and Q sample pairs The samples are stored in a double buffered register until the register contains 32 sample pairs CSP1093 then notifies the DSP which has ample time to read the information out before the next 32 sample pairs are stored The voice band ADC converter issues an interrupt to the DSP whenever it finishes converting a 16 bit PCM word The DSP t...

Page 13: ...ents may change without notice 3 SGH X430 Exploded View and its Parts list 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View 1 2 3 4 5 6 7 8 9 10 11 12 14 15 13 17 18 16 19 20 21 ...

Page 14: ...01448 4 MOTOR GH31 00067A 5 FOLDER LOWER GH75 03669A 6 WINDOW LCD GH75 03666A 7 SCREW 6001 001478 8 FOLDER SCREW CAP GH73 02274A 9 FRONT COVER GH75 03663A 10 KEYPAD GH75 03668A 11 DOME SHEET GH59 00931A 12 MAIN PBA GH92 01606A 13 VOLKEY FPCB GH59 00934A 14 MIC GH30 00054A 15 IF COVER GH73 01331A 16 ANTENNA GH42 00341C 17 REAR COVER GH75 03385B 18 RF COVER GH73 02490B 19 SCREW 6001 001479 20 SIDE K...

Page 15: ... Exploded view and its Part list 3 3 This Document can not be used without Samsung s authorization 3 1 RF Test Cable GH39 00182A 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 00482A 3 Test Jig GH80 00865A ...

Page 16: ...5 001082 V800 1405 001082 V801 1405 001082 V802 1405 001082 V803 1405 001082 V804 1405 001082 V808 1405 001082 V903 1405 001082 V904 1405 001082 V905 1405 001082 V907 1405 001082 Design LOC SEC CODE V908 1405 001082 V909 1405 001082 V910 1405 001082 V911 1405 001082 V806 1405 001093 V900 1405 001112 V901 1405 001112 V902 1405 001112 R103 2007 000138 R211 2007 000138 R1018 2007 000140 R802 2007 000...

Page 17: ... 2007 007009 R908 2007 007009 R405 2007 007107 R301 2007 007137 R306 2007 007142 R403 2007 007142 R502 2007 007200 R503 2007 007200 R404 2007 007308 R406 2007 007308 R223 2007 000171 Design LOC SEC CODE R224 2007 000171 R308 2007 008263 C1005 2203 000233 C1028 2203 000233 C1030 2203 000233 C108 2203 000233 C110 2203 000233 C111 2203 000233 C112 2203 000233 C113 2203 000233 C313 2203 000233 C324 22...

Page 18: ... 2203 001412 C301 2203 001598 C307 2203 001598 C308 2203 001598 C309 2203 001598 C310 2203 001598 C311 2203 001598 C312 2203 001598 C315 2203 001598 C316 2203 001598 C903 2203 001598 Design LOC SEC CODE C1000 2203 002443 C102 2203 005050 C103 2203 005050 C518 2203 005052 C1001 2203 005061 C1002 2203 005061 C1003 2203 005061 C1007 2203 005061 C1015 2203 005061 C300 2203 005061 C302 2203 005061 C405...

Page 19: ... 001305 C1004 2404 001268 C319 2404 001268 C800 2404 001268 C705 2503 001041 C706 2503 001041 L209 2703 002202 L102 2703 002203 L210 2703 002203 L105 2703 002205 L204 2703 002207 L205 2703 002207 L106 2703 002365 L103 2703 002484 L100 2703 002485 OSC400 2801 003747 OSC100 2809 001260 F100 2904 001417 F101 2904 001419 U201 2909 001197 CON1 3705 001287 CN300 3709 001244 CN700 3711 005078 CN1000 3722...

Page 20: ...S RX 1805 1880 MHz CH698 1842 4 MHz SAW Filter F100 SAW Filter F101 LNA LNA PGA PGA ADC ADC VCTCXO OSC100 EGSM TX 880 915 MHz CH62 902 4 MHz DCS TX 1710 1785 MHz CH698 1747 4 MHz Dual PAM U200 Antenna S W U201 RF Conector CON1 Si4205 U100 RF PLL IF PLL PD LPF Mixer Channel Filter PGA PGA DAC DAC 100 kHz CSP1093 U500 Bryce Park I Q I Q SDATA SCLK SENB PDNB 1 RF Solution Block Diagram ...

Page 21: ...AM MAIN VCO TX VCO IF VCO GPIO POWER LDO CHARGER SIM X TAL 13MHz RS232 CSP1093 Audio Part LCD KEYBOARD SCRAM 32M 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 ...

Page 22: ...SAMSUNG Proprietary Contents may change without notice 6 1 6 SGH X430 PCB Diagrams This Document can not be used without Samsung s authorization 1 Main PCB Top Diagram ...

Page 23: ...SAMSUNG Proprietary Contents may change without notice 6 2 6 SGH X430 PCB Diagrams This Document can not be used without Samsung s authorization 2 Main PCB Bottom Diagram ...

Page 24: ... not work Voltage 3 3V Download again Charge the Battery pin 11 of U300 2 8V Check U300 and C310 pin 39 of U300 2 8V Check U300 and C309 Check the clock signal at pin3 of OSC100 Freq 13MHz Vrms 300mV Check the clock generation circuit related to OSC100 END No Yes Yes Yes Yes Yes No No No No pin 9 1 8V No Yes Check the VBATT Voltage Check the pin of U300 Check the initial operation Check the curren...

Page 25: ... Failure Check the U300 If it has some problem it has to be replaced END No Yes Is the pin 19 of U300 Low High Yes Check the U400 There is 32 768kHz wave forms at the C414 and C416 Check the LCD Part Yes No No Yes Yes Yes The Voltage is High at the C307 Check the Audio Part No Check the U300 If it has some problem it has to be replaced Check the U300 The pin 22 of U300 is High Check the U300 LCD d...

Page 26: ...Troubleshooting 7 3 This Document can not be used without Samsung s authorization 3 Sim Part Is there any Signals pin 52 53 54 of U300 Insert SIM is displayed on the LCD Check the U400 Check the SIM Card END No Yes Yes Yes No Check the U300 Is there any Signals pin 1 2 3 4 of CN300 ...

Page 27: ...t can not be used without Samsung s authorization 4 Charging Part The pin 17 18 of CN800 is TA_VEXT 뵃 5V Abnormal charging operation Replace TA or Check CN800 No END Yes The pin 7 of U301 is 3 2 4 2V Check the U301 No Yes No Solder again or change R306 Yes The ICHRG 1 4V during charging and 뵃 180mV full charging ...

Page 28: ...SAMSUNG Proprietary Contents may change without notice 7 SGH X430 Flow Chart of Troubleshooting 7 5 This Document can not be used without Samsung s authorization ...

Page 29: ...out Samsung s authorization 5 Microphone Part Is the assembled status of microphone O K Microphone does not work C1016 뵃 2 5V Reassemble the microphone Solder the microphone again or Replace around Mic Circuit C1009 R1010 R1009 R1006 R1008 END No Yes Yes Yes Yes No Is microphone ok No Check U500 Check the reference voltage on mic path ...

Page 30: ... sound from Speaker Are there any signals at the pin 20 of CN700 pin 19 of CN700 Check LCD or Replace CN700 Check U1000 Is there any signals at the pin 5 and pin 7 of U1001 END No Yes Yes Yes No No The type of sound from the Speaker is Melody Replace the Speaker Yes No The pin 4 of U1001 is Low No No Yes Yes Yes Check U1001 Is there any signals at the pin 2 and pin 10 of U1001 The pin 4 of U1001 i...

Page 31: ...SAMSUNG Proprietary Contents may change without notice 7 SGH X430 Flow Chart of Troubleshooting 7 8 This Document can not be used without Samsung s authorization ...

Page 32: ...in 8 13MHz Vp p 860mV U1005 CHECK pin1 2 65dBm U900 CHECK pin20 21 65dBm Check soldered status of C1001 C1000 CON1 resolder or change U1005 resolder or change C1003 C1004 L1001 resolder or change OSC901 CHECK pin 4 clean 3V U900 CHECK pin 9 clean 3V C912 R903 C902 resolder OSC901 change or resolder U100 pin46 C114 check or resolder U900 pin1 2 3 28 Vp p 100mV U900 resolder or change CHECK U700 NO ...

Page 33: ...0 1 2V YES NO R1009 check change R1000 5dBm YES C1016 3V YES YES U1000 change NO U700 check U700 check change YES NO U900 pin9 3V U100pin46 C114 change or resolder YES U901 pin5 6 7 8 1 7V YES U700 change NO NO U1001 change or resolder YES U900 pin 8 13MHz Vp p 950mV U900 pin10 12 13 14 3V YES OSC901 pin 3 13MHz Vp p 950mV OSC901 change or resolder U700 check or change 0SC901 pin 4 3V U100 pin46 C...

Page 34: ...pin 8 13MHz Vp p 860mV U1005 CHECK pin3 4 65dBm U900 CHECK pin18 19 65dBm Check soldered status of C1001 C1000 CON1 resolder or change U1005 resolder or change C1005 C1006 L1002 resolder or change OSC901 CHECK pin 4 clean 3V U900 CHECK pin 9 clean 3V C912 R903 C902 resolder OSC901 change or resolder U100 pin46 C114 check or resolder U900 pin1 2 3 28 Vp p 100mV U900 resolder or change CHECK U700 NO...

Page 35: ... R1009 check change NO R1004 5dBm YES C1016 3V YES YES U1000 change or resolder NO U700 check YES U700 check NO U900 pin9 3V U100 pin46 C114 change or resolder YES U900 pin4 5 6 7 1 7V U700 change NO NO U1000 change or resolder YES U900 pin 8 13MHz Vp p 950mV U900 pin10 12 13 14 3V YES YES OSC901 pin 3 13MHz Vp p 950mV OSC901 change or resolder U700 check or change OSC901 pin 4 3V U100 pin46 C114 ...

Page 36: ...SAMSUNG Proprietary Contents may change without notice 7 SGH X430 Flow Chart of Troubleshooting 7 13 This Document can not be used without Samsung s authorization ...

Page 37: ...SAMSUNG Proprietary Contents may change without notice 7 SGH X430 Flow Chart of Troubleshooting 7 14 This Document can not be used without Samsung s authorization ...