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Samsung SGH-D428 Service Manual

Gsm telephone
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Download this manual See also: Owner's Manual
GSM TELEPHONE
GSM TELEPHONE
SGH-D428
CONTENTS
1.
Specification
2.
Flow Chart of Troubleshooting
3.
Exploded Views and Parts List
4.
Electrical Parts List
5.
Block Diagrams
6.
PCB Diagrams

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Summary of Contents for Samsung SGH-D428

  • Page 1 GSM TELEPHONE SGH-D428 GSM TELEPHONE CONTENTS Specification Flow Chart of Troubleshooting Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams...
  • Page 2 ⓒ Samsung Electronics Co.,Ltd. Dec. 2004 Printed in Korea. This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Code No.: GH68-06337A International and/or domestic law. BASIC.

  • Page 3: Specification

    S e nsi ti vit y -102dBm - 10 2d B m -100dBm -100dBm TDM A Mu x Cell Radiu s 35 Km 35 Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Gsm Tx Power Class

    6 ± 4dBm 7 ± 2dBm 4 ± 4dBm 4 ± 4dBm 5 ± 2dBm 2 ± 5dBm 2 ± 5dBm 0 ± 5dBm 0 ± 5dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 5: Flow Chart Of Troubleshooting

    OSC801 Check the clock generation Freq=13MHz ? circuit Vrms ≥ 300mV ? Vpp is around 900mVpp ? Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 6: Sim Part

    SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2. Initial Initial Failure Check the signal at the pin 21 of U102 is Check the pin 46,20 and Q103 "High" when the phone is boot on Check the key program and...

  • Page 7: Charging Part

    SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 4. Charging Part Abnormal charging part Check the pin 17, 18 of CN300 is Replace TA,Check CN300-1 TA_VEXT>4? Check the pin 2 of Check the U101 U101 is "low"? Check the pin 3 of Check the Q101 Q101 is "low"?

  • Page 8: Microphone Part

    SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 5. Microphone Part Microphone does not work check the soldered Resolder microphone status of microphone. Resolder or change Check the reference voltage on mic path R413,C420,R414,C410,R411,R40 C411 ≒ 2.5 V Is microphone ok? Check U701 6.
  • Page 9 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2.RF 1. EGSM RX CONTINUOUS RX ON RF INPUT : 62CH NORMAL CONDITION CHECK AMP : -50dBm catch the channel? ANT1001,L1002 contact ? F1001 CHECK C1003, C1006 pin13 ≥ -65dBm ? resolder or change...
  • Page 10 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2. DCS RX CONTINUOUS RX ON RF INPUT : 698CH AMP : -50dBm NORMAL CONDITION CHECK catch the channel? ANT1001,L1002 contact ? C1008,C1009 F1001 CHECK resolder or change pin13 ≥ -65dBm ?
  • Page 11 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 3. PCS RX CONTINUOUS RX ON RF INPUT : 660CH NORMAL CONDITION CHECK AMP : -50dBm catch the channel? ANT1001,L1002 contact ? F1001 CHECK C1012, F1013 pin13 ≥ -65dBm ? resolder or change...
  • Page 12 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 4. EGSM TX F1001 pin 12 : CONTINUS TX ON CONDITION F1001 U701,U702 about 2~3 pin13 : 2.8 V? TX POWER DAC: 550 CODE APPLIED check & change CH : 62 RBW : 100KHz...
  • Page 13 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 5. DCS/PCS TX F1001 pin 10 : CONTINUOUS TX ON CONDITION F1001 U701,U703,U704 about 2~3 CH : 698CH(DCS),660CH(PCS) pin9 : 2.8 V? check & change TX POWER CODE: 350 CODE Aplied RBW : 100KHz...
  • Page 14 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams V108 Q101 V107 F102 F107 AUX1 AUX2 ARNG R101 100K R102 F106 100K KEY_COL(0) KEY_COL(1) KEY_COL(2) 2-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams V302 ZD304 V301 ZD305 2-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 SGH-D428 Flow Chart of Troubleshooting and Circuit Diagrams 2-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 3. SGH-D428 Exploded View and its Parts list 1. Cellular phone Exploded View SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 6001-001823 QHI01 HINGE ASSY GH75-04143A QMP02 PBA LCD GH92-01892A QME02 UNIT METAL DOME GH59-01449A QAN01 ANTENNA GH42-00428A QRE01 REAR COVER GH75-04339A QIF01 IF COVER GH72-12562A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 3-1. RF Test Cable 3-2. Test Cable 3-3. Serial Cable (GH39-00090A) (GH39-00127A) 3-4. Power Supply Cable 3-5. DATA CABLE 3-6. TA (GH39-00201C) (GH44-00483A):China 3-7. TA (GH44-00770A):Hong Kong SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 28: Electrical Parts List

    2007-001325 R410 1405-001019 V301,V302 2007-001333 R419 1405-001082 V207,V210,V211,V212,V215 2007-003001 R401,R403 2007-000138 R203,R804 2007-007008 R1003,R1004,R1007,R1008 2007-000140 R304,R305,R306,R309,R310 2007-007009 R204 2007-000140 R312,R313,R318,R319,R320 2007-007107 R1009 2007-000140 R321,R322,R420,R426,R427 2007-007139 R103,R418 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 L1002 2203-000812 C427,C906 2703-001751 L901 2203-000885 C408 2703-002281 L1009 2203-000995 C1002,C1003,C1015,C243 2703-002309 L401 2203-000995 C406,C407,C904 2703-002484 L1004,L1006 2203-001210 C445 2703-002485 L1003 2203-001405 C403,C430,C609,C905,907 2801-003747 OSC601 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 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 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 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,R172,R173 2203-000278 C119,C126,C129,C130,C131 2203-000438 C114 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 32: Block Diagrams

    DSP16000 SI4200 SERIAL DATA, SERIAL DATA ARM7TDMI CLK, INTERFACE GSM:890MHz~915MHz D E T DCS:1710MHz~1785MHz TCVCXO 13 MHz PCS:1850MHz~1910MHz A F C C L K SI4133T SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 OCTL SCRLE -IF VCO KEYPAD SERDA RFOVL Audio Part OCTL SID13712 FLASH SRAM (16M) (128M) EPSON Memory Part TSC2200 YMU765 Audio Touch Screen YAMAHA KeyPad SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 34: Pcb Diagrams

    C910 U702 R804 C1001 OSC801 C805 U903 R701 L1009 U704 C806 ANT1001 R703 R415 C423 R802 C802 R414 C710 R803 C803 R423 C439 R204 R207 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 F203 R233 U202 C431 C432 R403 C404 F204 F201 F208 ZD402 R401 F209 C240 R226 C242 R220 R222 C241 R225 R224 R223 C244 LED204 V215 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 ZD116 ZD108 ZD115 ZD104 R144 ZD105 R158 R135 R134 C131 C118 C130 Q109 Q108 C129 C121 R149 R152 R150 R148 R153 C133 R164 R151 C123 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 SGH-D428 PCB Diagrams MENU SEND LEFT RIGHT END_PWR SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

Table of Contents