Samsung SGH-D428 Service Manual Download Page 17 | Manualshive

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SAMSUNG Proprietary-Contents may change without notice

SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams

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This Document can not be used without Samsung's authorization

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Summary of Contents for SGH-D428

Page 1: ...GSM TELEPHONE SGH D428 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 ...

Page 2: ...Co Ltd Dec 2004 Printed in Korea Code No GH68 06337A 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: ...12 19 2dBm 13 17 2dBm 14 15 2dBm 15 13 2dBm 16 11 2dBm 17 9 2dBm 18 7 2dBm 19 5 2dBm TX Power control level DCS1800 0 30 3dBm 1 28 3dBm 2 26 3dBm 3 24 3dBm 4 22 3dBm 5 20 3dBm 6 18 3dBm 7 16 3dBm 8 14 3dBm 9 12 4dBm 10 10 4dBm 11 8 4dBm 12 6 4dBm 13 4 4dBm 14 2 5dBm 15 0 5dBm TX Power control level PCS1900 0 30 3dBm 1 28 3dBm 2 26 3dBm 3 24 3dBm 4 22 3dBm 5 20 3dBm 6 18 3dBm 7 16 3dBm 8 14 3dBm 9 ...

Page 5: ... more than 100mA Power On does not work Check the VBAT more than 3 3V Download again Charge the Battery Check the pin 11 of U102 is more than 2 8V Check the 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 U102 pi...

Page 6: ...1 8A of U601 Check the soldered status of U601 OSC601 Yes No No Yes Yes Check LCD connector CN201 in the main PBA and the FPCB connector Yes Check the vccd of U601 is around 2 8V Check the soldered status of U601 osc601 No Check the pin 1 of CN101 voltage 3V Phone can t access SIM card Check the SIM connector s CN101 connection to SIM card Check the circuit related to U102 Resolder or change CN101...

Page 7: ... Charging Part Check the pin 17 18 of CN300 is TA_VEXT 4 Abnormal charging part Check the pin 2 of U101 is low Replace TA Check CN300 1 Check the U101 Check the Q101 END No Yes Yes Yes Yes No No Check the pin 3 of Q101 is low Check the pin 5 of U101 is 3 2 4 2V Check the U101 No Yes Check the ICHRG is 1V during charging and around 180mV full charging No Resolder or change R111 Yes ...

Page 8: ...Check the reference voltage on mic path C411 2 5 V Resolder microphone Resolder or change R413 C420 R414 C410 R411 R40 8 END No Yes Yes Yes Yes No Is microphone ok No Check U701 Check the FPCB from CN201 to CN11 Speaker does not work Check the PIN 4 of U401 High Retry connection the FPCB from CN201 to CN11 Check U401 and the audio path of U701 Is speaker ok Check componants near the U402 and contr...

Page 9: ...50dBm NORMAL CONDITION catch the channel CHECK ANT1001 L1002 contact U902 pin 26 32 2 8V F1001 CHECK pin1 2 65dBm U1002 CHECK pin20 21 65dBm C1003 C1006 resolder or change F1001 resolder or change C1005 C1006 L1003 resolder or change U102 pin39 C112 change or resolder U903 CHECK pin 7 13MHz Vp p 950mV OSC801 change or resolder U902 resolder or change U702 R701 resolder or change U902 pin1 2 5 6 Vp...

Page 10: ...dBm NORMAL CONDITION catch the channel CHECK ANT1001 L1002 contact U902 pin 26 32 2 8V F1001 CHECK pin3 4 65dBm U902 CHECK pin21 22 65dBm C1008 C1009 resolder or change F1001 resolder or change C1008 C1009 L1004 resolder or change U102 pin39 C112 change or resolder U903 CHECK pin 7 13MHz Vp p 950mV OSC801 change or resolder U902 resolder or change U703 R704 resolder or change U902 pin1 2 5 6 Vp p ...

Page 11: ...DITION catch the channel CHECK ANT1001 L1002 contact U902 pin 26 32 2 8V F1001 F1002 CHECK pin6 65dBm U902 CHECK pin16 17 65dBm C1012 F1013 resolder or change F1001 F1002 R1011 resolder or change C1012 F1002 C1013 R1011 L1006 resolder or change U102 pin39 C112 change or resolder U903 CHECK pin 7 13MHz Vp p 950mV OSC801 change or resolder U902 resolder or change U704 R705 resolder or change U902 pi...

Page 12: ...ck change U1001 pin 5 3 7 V NO NO YES YES YES NO NO BATTERY U102 check change U1001 pin 6 1 2V YES NO U1001 pin7 about 5dBm YES U1001 pin 3 3V YES YES U1001 change or resolder NO U701 check U701 check NO U902 pin14 26 32 2 8V U102 pin39 C112 change or resolder YES U903 pin7 13MHz Vp p 950mV U902 pin1 2 4 5 100m YES U701 change or resolder NO NO U902 change or resolder YES NO OSC801 change or resol...

Page 13: ...nge U1001 pin 4 5 3 7 V NO NO YES YES YES NO NO BATTERY U102 check change U1001 pin 6 1 2V YES NO U1001 pin1 about 5dBm YES U1001 pin 3 3V YES YES U1001 change or resolder NO U701 check U701 check NO U902 pin9 2 8V U102 pin39 C112 change or resolder YES U903 pin8 13MHz Vp p 950mV U902 pin1 2 4 5 100mV YES U701 change or resolder NO NO U902 change or resolder YES NO OSC801 change or resolder CONTIN...

Page 14: ... C133 NC C118 39PF R147 0 TP1 C103 VCCD NC C102 NC VCCD C126 VBAT 10PF 18 VCCD F101 VREF 31 X 1X Y 32 2Y 20 _DAV 7_ KBIRQ _PENIRQ 22 _SS R2 11 R3 R4 12 SCLK 17 VBAT1 4 VBAT2 5 VDD 29 30 VDD 6 MISO MOSI 19 NC 9 NC 24 25 NC 37 NC NC 38 8R 1 10 14 15 C3 16 C4 GND 3 33 GND GND 34 35 GND GND 36 21 U102 23 AOUT ARNG26 28 AUX1 AUX2 27 13 C1 C2 2 3 4 5 6 7 8 ZD110 1 100NF C116 1UF C115 34 1 100K R140 OUT ...

Page 15: ...DD12 10 19 RESETN RING_DRV 5 55 RING_PWM RTC_ALMN 13 17 SCLK 15 SDI 16 SDO 50 SIM_CLK SIM_IO 28 INTRQ 14 LED1_DRV 78 LED2_DRV 20 PSW1_BUF PWR_KEEP 21 46 PWR_SW1N PWR_SW2 47 61 62 GND GND 63 64 GND 65 GND GND 66 GNDD 60 6 GNDD1 GNDQ 25 EN_5 EN_5A 26 27 EN_5B 57 GND 67 GND GND 68 GND 58 59 GND GND 45 ADC_TRIG 56 43 BTEMP CREF 29 CSN 18 EN_3 22 23 EN_4 0 EN_4 1 24 U102 44 ADC_AUX1 ADC_AUX2 1UF C113 V...

Page 16: ...N OUT 8 7 OUT OUT 6 5 OUT F204 GND 9 1KEYPAD 12 V206 LED211 V216 V207 V208 C239 100NF C237 1UF 8 8 9 9 LED204 50 51 51 52 52 53 53 54 54 55 55 6 6 7 7 43 43 44 44 45 45 46 46 47 47 48 48 49 49 5 5 50 36 36 37 37 38 38 39 39 4 4 40 40 41 41 42 42 29 3 3 30 30 31 31 32 32 33 33 34 34 35 35 21 22 22 23 23 24 24 25 25 26 26 27 27 28 28 29 14 14 15 15 16 16 17 17 18 18 19 19 2 2 20 20 21 CN201 1 1 10 1...

Page 17: ... DEBUG_TXD 1 2 VCCD B VBAT I F CONNECTOR 3 12 R309 1K 3 4 1 9 10 VCCD C302 100NF1 00NF C303 VBAT 1K R304 R318 13 1K R306 1K 47K R301 7 V301 18 V302 1K R322 1K ZD304 ZD302 2 13 45 R319 R313 R321 1K 1K 1K R320 1K R312 C306 NC R315 R316 NC 10V 10UF 100NF R314 NC C304 100NF C301 23 21 20 22 19 15 34 5 16 11 ZD303 2 1 1K 24 R310 2 1K 47K R302 R305 2 134 5 C305 33PF ZD301 VCCD 14 R303 47K 8 VCCD 5 6 17 ...

Page 18: ... R403 12 22PF C442 VCCA C439 10NF R406 33K C408 C445 8 2NF 4 7NF R4011 2 2 2K R413 C414 330PF C444 27PF R402 100K R405 82K VCCA C441 22UF 4V 680 R414 C409 100NF VBAT C410 100NF 1 ZD402 F405 NO2V 1 C424 270PF COM2 9 GND 6 4 IN1 8 IN2 NC1 5 NC2 7 2 NO1 10 R410 U401 COM1 3 3 3K 3 3K 1 R416 C429 270PF ICEBERG FPCB MIC401 47K 1 R418 VBAT C404 100NF 1NF C425 1K R420 10K R417 4 7UF C405 6 3V F401 C403 6 ...

Page 19: ...10 CM1DAT3 M10 CM1DAT4 U502 100NF R512 VCCD C512 4 7K 4 7K R511 0 C510 100NF R509 NC R508 VCC_1 8A VCC_1 8A R515N C R519 0 VBAT C507 100NF VCCD 0 R506 33UF 6 3V C508 0 R516 10K R520 C515 NC VCC_1 8A NC R505 C505 10NF VCC_1 8A VCCD C514 100NF R513 100NF NC C509 47K 100NF C502 R504 VCCD C501 100NF WP 100NF C503 VSS VSS L5 L6 VSS VSS L7 L8 VSS L1 VSS WAIT G7 WE F5 E4 VCC2 VCC2 K6 VCCQ J8 K7 VCCQ VCCQ...

Page 20: ...D VDD T13 R16 VDD VDD R17 A5 VDD RSTB C12 RWN U5 TCK H13 TDI H12 F12 TDO G12 TMS TRST F15 VDD E2 P7 DB 8 DB 9 N7 N4 INT 0 R12 IO7 IOBIT 1 K11 IOBIT 2 L12 NC 1 2 NC R11 DB 14 DB 15 P10 R6 DB 2 DB 3 P6 U7 DB 4 T7 DB 5 DB 6 R7 M6 DB 7 F17 CKI G15 CKO DB 0 P5 U6 DB 1 DB 10 N8 M8 DB 11 DB 12 U11 T11 DB 13 AB 1 M10 R13 AB 2 N11 AB 3 AB 4 P11 P12 AB 5 AB 6 R14 AB 7 T14 T17 AB 8 VCC_1 8A U601 U13 AB 0 33K...

Page 21: ...C K7 MICIN A13 MICOUT B12 NC 1 2 DB4 DB5 G3 F5 DB6 DB7 G2 F2 DB8 DB9 E2 L4 DINTR E11 GNDA GNDB DB10 DB11 D4 E1 DB12 DB13 E4 C2 DB14 DB15 B1 J5 DB2 DB3 J1 H3 AUXOUT L5 CINTR DAICK B10 B9 DAIDI B8 DAIDO D10 DAIRN J2 DB0 DB1 H2 D2 AB7 AB8 K1 G12 AFC G13 AOUTAN F13 AOUTAP E14 AOUTBN AOUTBP D13 A14 AUXIN B14 AB0 P5 N4 AB1 AB2 N3 P2 AB3 AB4 P1 N1 AB5 AB6 M2 L2 2 4 U701 C711 R702 10NF C702 100K R704 NC C...

Page 22: ...his Document can not be used without Samsung s authorization C 6 D 3 8 7 B 8 1 A F 6 7 X TAL 13MHz 5 1 C A 5 E 2 F D 4 E 2 3 B 4 C803 1NF C802 1 2K 10NF R802 R803 C801 10NF 1 8K C804 10NF 100 R804 4 VCC 1 VT 10NF C805 OSC801 GND 2 OUT 3 10NF C806 10NF C807 10 VOSC AFC CLK13M_RF CLK13M_YMU 13MHZ_BB CLK13M_MC CLK13M_TR R801 ...

Page 23: ...2 RFOD 24 25 RFOG 6 TXIN 5 TXIP TXQN 8 7 TXQP 23 31 PDNB RFIDN 20 19 RFIDP RFIGN 22 21 RFIGP RFIPN 18 RFIPP 17 RFLON 13 GND 35 GND 36 10 IFLON IFLOP 9 ION 1 2 IOP 29 L1 L2 28 CKP 4 DIAG1 16 15 DIAG2 11 GND 27 GND GND 30 GND 33 GND 34 6 VDDC 7 XIN 19 XOUT U902 CKN 3 4 RXIP 3 RXQN RXQP 2 17 SCLK SDI 18 15 SDO SENB 16 VDDA 20 21 GND GND 22 GND 23 GND 24 ION 12 11 IOP PDNB 14 5 RXIN 10 CKN CKP 9 1 GND...

Page 24: ...02 F1003 A 2 3 C 1 G 4 G G 5 6 NC C1011 C1023 10PF C1001 VPAC R1001 18 0 5PF 47PF C1005 1PF L1004 7 5NH C1003 300 100PF C1007 R1008 300 NC L1007 5 6nH L1009 R1003 C1004 100PF 47PF C1015 ANT1001 1 1 2 2 C1022 33UF 6 3V 100PF C1010 1 2PF C1008 C1020 33PF C1018 100K 1 1NF VCC2 VCC2 12 VRAMP 6 5 VREG R1009 1 DCSIN GND 13 GSMIN 7 GSMOUT 9 PCSOUT 11 TXEN 3 VBATT 4 VCC 10 8 RF3110 U1001 BAND 2 6 3V 33UF ...

Page 25: ...SAMSUNG Proprietary Contents may change without notice 3 SGH D428 Exploded View and its Parts list 3 1 This Document can not be used without Samsung s authorization 1 Cellular phone Exploded View ...

Page 26: ...Y FPCB GH59 00948A QME01 UNIT METAL DOME GH59 01453A QSP01 SPEAKER 3001 001560 QCR06 SCREW 6001 001155 QCR03 SCREW 6001 001811 QLC01 LCD GH07 00565A QMO01 MOTOR DC GH31 00052A QPC01 PCB 55PIN FPCB GH41 00629A QCA01 UNIT CAMERA GH59 01465A QCA04 SIDE DECO GH71 04444A QSC02 HINGE SCREW CAP GH74 03847A QCA05 SIDE DECO COVER GH74 11770A QCH03 CAMERA HINGE GH75 03936A QFU01 SLIDER UPPER ASSY GH75 04336...

Page 27: ...d 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 00201C 3 6 TA GH44 00483A China 3 7 TA GH44 00770A Hong Kong ...

Page 28: ...01019 V301 V302 1405 001082 V207 V210 V211 V212 V215 2007 000138 R203 R804 2007 000140 R304 R305 R306 R309 R310 2007 000140 R312 R313 R318 R319 R320 2007 000140 R321 R322 R420 R426 R427 SEC CODE Design LOC 2007 000141 R413 2007 000143 R511 R512 2007 000148 R423 R520 R602 R102 R112 R417 2007 000149 R425 2007 000157 R216 R217 R301 R302 R303 2007 000157 R504 R601 R605 R610 2007 000159 R407 2007 00016...

Page 29: ...2203 000812 C427 C906 2203 000885 C408 2203 000995 C1002 C1003 C1015 C243 2203 000995 C406 C407 C904 2203 001210 C445 2203 001405 C403 C430 C609 C905 907 SEC CODE Design LOC 2203 001405 C909 C911 C912 C913 C914 2203 001405 C915 2203 001598 C103 2203 002443 C414 2203 002668 C1001 C251 C252 2203 005061 C102 C239 C240 C255 C301 2203 005061 C302 C303 C304 C402 C404 2203 005061 C409 C417 C501 C502 C503...

Page 30: ...orization SEC CODE Design LOC 2809 001264 OSC801 2901 001260 F201 F202 F203 F204 F208 2904 001410 F1002 2909 001191 F1001 3301 001342 F209 F401 F402 F403 F404 3301 001342 F405 F501 3705 001255 F1003 3708 001982 CN201 3709 001187 CN101 3710 001105 CN205 3710 001673 CN300 3722 001880 CN401 4302 001130 M101 GH09 00025A U601 GH71 01052A ANT1001 ...

Page 31: ...R131 R152 R153 R175 2007 000140 R124 R165 R176 2007 000151 R134 R135 R148 2007 000157 R118 2007 000162 R101 R102 R140 2007 000171 F102 R137 R139 R144 R147 2007 000171 R174 2007 000775 R119 R138 2007 001292 R104 2007 001306 R127 R130 R151 R164 2007 007192 R103 2007 007195 R129 R132 R149 R150 2007 008045 R154 R155 R156 R157 R158 2007 008045 R159 2007 008806 R166 R167 R168 R169 R170 2007 008806 R171 ...

Page 32: ...F 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 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 SI4201 1 RF Solution Block Diagram...

Page 33: ... DC CHARGER SIM PSC 2106 X TAL 13MHz VC TCXO 208C3 ACC RTC DSP16000 ARM7 EMI IO RWN AB 8 0 DB 15 0 INt1 IRQx Pax RSTB KEYPAD TRIDENT IO RWN AB 8 0 DB 15 0 INT1 IRQx Pax RSTB RF DRIVER TX I Q RX I Q TXP SERCK SERLE SERDA OCTL Audio Part CSP 1093 EPSON SID13712 FLASH ROM 128M SRAM 16M Memory Part Touch Screen IC TSC2200 YAMAHA YMU765 TXIP TXIN TXQP TXQN RXIP RXIN RXQP RXQN SERCK SCRLE SERDA RFOVL TX...

Page 34: ...2 C799 C801 C802 C803 C804 C805 C806 C807 C904 C905 C906 C907 C908 C909 C910 C911 C912 C913 C914 C915 CN101 CN205 CN300 CN401 D101 D102 D103 D201 F1001 F1002 F1003 F401 F402 F405 F501 G1 G2 G3 G4 L1002 L1003 L1004 L1006 L1007 L1008 L1009 L401 L901 M101 MIC401 OSC601 OSC801 Q101 Q102 Q103 Q104 Q401 R1001 R1002 R1003 R1004 R1005 R1006 R1007 R1008 R1009 R102 R103 R104 R106 R110 R111 R112 R113 R114 R1...

Page 35: ...0 C253 C404 C425 C426 C427 C431 C432 C433 C434 C436 C437 C440 C441 C443 C444 C445 CN201 CN202 F201 F202 F203 F204 F208 F209 F3 F4 F403 F404 F_WE_1 GND_1 L201 LED201 LED202 LED203 LED204 LED206 LED207 LED208 LED209 LED211 LED212 LED217 R220 R221 R222 R223 R224 R225 R226 R228 R229 R230 R231 R233 R401 R403 R426 TCK_1 TDI_1 TDO_1 TMS_1 TP201 TRST_1 U202 U401 V205 V206 V207 V208 V209 V210 V211 V214 V21...

Page 36: ... C136 C137 C138 CN101 CN102 CN105 D100 F101 F102 F104 F106 F107 F108 F109 L101 Q101 Q102 Q104 Q105 Q106 Q107 Q108 Q109 R101 R102 R103 R104 R118 R119 R124 R127 R128 R129 R130 R131 R132 R134 R135 R136R137R138 R139 R140 R144 R147 R148 R149 R150 R151 R152 R153 R154 R155 R156 R157 R158 R159 R161 R164 R165 R166 R167 R168 R169 R170 R171 R172 R173 R174 R175 R176 SPK1 TP1 TP2 U101 U102 U103 U106 U107 V107 ...

Page 37: ...ietary Contents may change without notice SGH D428 PCB Diagrams 6 4 This Document can not be used without Samsung s authorization CLR END_PWR INTERNET LED105 LED106 LED107 LED108 LEFT MENU OVER RIGHT SEND STO UNDER ...

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