Samsung SGH-N628 Service Manual
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Samsung SGH-N628 Service Manual

Samsung SGH-N628 Service Manual

Dual band mobile cellular phone
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ELECTRONICS
SERVICE
DUAL BAND Mobile Cellular Phone
DUAL BAND Mobile
Cellular Phone
SGH-N628
Manual
CONTENTS
1. Exploded Views and Parts List
2. PCB Diagrams
3. Electrical Parts List
4. Block Diagrams
5. Flow chart of trouble shooting

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Summary of Contents for Samsung SGH-N628

  • Page 1 DUAL BAND Mobile Cellular Phone ELECTRONICS SGH-N628 SERVICE Manual DUAL BAND Mobile Cellular Phone CONTENTS 1. Exploded Views and Parts List 2. PCB Diagrams 3. Electrical Parts List 4. Block Diagrams 5. Flow chart of trouble shooting...
  • Page 2 ELECTRONICS Samsung Electronics Co.,Ltd. Printed in Korea 12/2001 Rev 1.0 GH68-02604A...

  • Page 3: Table Of Contents

    1. Exploded Views and Parts List Main Main Parts List Travel Adapter Travel Adapter Parts List Battery Charger Test Jig 1-6-1 Test Jig normal EAR Microphone Data Kit 2. PCB Diagrams Main Top Main Bottom 3. Electrical Parts List Main Parts List Top Main Parts List Bottom 4.
  • Page 4 1. Exploded Views and Parts List 1-1 Main (SGH-N628) Exploded Views and Parts List...

  • Page 5: Main Parts List

    1-2 Main Parts List SEC CODE DISCRIPTION Q’TY SVC REMARK WHITE DARK BLUE DARK SILVER FRONT COVER ASS'Y GH75-01671B GH75-01671A GH75-01671C SPEAKER 3001-001199 3001-001199 3001-001199 MIC ASS'Y GH59-00240B GH59-00240B GH59-00240B KEY PAD(3X4) GH72-03705A GH72-03705A GH72-03705A KEY PCB(3X4) GH59-00282A GH59-00282A GH59-00282A COVER LCD GH73-00923A GH73-00923A...

  • Page 6: Travel Adapter

    1-3 Travel Adapter 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK GH44-00171 A CHINA 1-5 Battery Charger Battery Charger GH44-00281A 1-6 Test Jig TEST JIG GH80-10508A Exploded Views and Parts List...
  • Page 7 TEST JIG CABLE GH39-00079A GH39-00094A RF JIG CABLE DM CABLE GH39-00080A Exploded Views and Parts List...

  • Page 8: Normal Ear Microphone

    1-6-1 Test Jig POWER SUPPLY 8922 or 8960 WIRELESS COMMVNCATIONS TEST SET RF JIG CABLE 232 CABLE TEST JIG CABLE 1-7 Normal EAR Microphone Wearable EAR Microphone GH59-00359A 1-8 Data Kit DATA KIT GH39-00078A Exploded Views and Parts List...
  • Page 9 2. PCB Diagrams 2-1 Main Top L624 C211 C100 U200 C680 R520 C206 R524 C521 C205 R536 R209 C517 R625 R534 R512 C129 C204 C511 R207 R626 C210 R547 C545 C544 R406 R206 R407 R528 C661 C209 C203 C513 C542 L604 R513 R630...
  • Page 10 2-2 Main Bottom C671 U613 U110 R633 C119 C109 C555 C590 C591 C602 U601 U300 C533 C123 L600 U105 C125 U104 C607 R306 C669 R635 R636 C554 R632 Q604 L612 L605 C534 R108 R640 C679 L606 C630 C111 C631 C632 C605 R644 C115...

  • Page 11: Electrical Parts List

    3. Electrical Parts List 3-1 Main Parts List Top Reference SEC Code Part Description Vendor Part No C100 2404-001105 C-TA,CHIP;10UF/6.3V TCSCS0J106MPAS C101 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C102 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V GRP1555C1H101JD01E C129 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C151 2203-005482 C-CERAMIC,CHIP;C104K,100NF,10V GRP155R61A104KA01E C202 2404-001101 C-TA,CHIP;1UF/16V TAJR105M016R C203 2404-001101...
  • Page 12 Reference SEC Code Part Description Vendor Part No C502 2203-000679 C-CERAMIC,CHIP;C270J,27PF,50V GRP1555C1H270JZ01E C503 2203-003054 C-CERAMIC,CHIP;C090C,9PF,50V GRP1555C1H9R0DZ01E C504 2203-005503 C-CERAMIC,CHIP;C1801J,180PF,25V CL05C181JANC C505 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V GRP1555C1H101JD01E C506 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V GRP1555C1H101JD01E C507 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V GRP1555C1H101JD01E C508 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V GRP1555C1H101JD01E C510 2203-005503 C-CERAMIC,CHIP;C1801J,180PF,25V CL05C181JANC C511 2203-000812 C-CERAMIC,CHIP;C330J,33PF,50V...
  • Page 13 Reference SEC Code Part Description Vendor Part No C551 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C552 2203-000812 C-CERAMIC,CHIP;C330J,33PF,50V GRP1555C1H330JZ01E C553 2404-001162 C-TA,CHIP;F950G476MAAJZTQ2 F950G476MAAJZTQ2 C560 2203-003054 C-CERAMIC,CHIP;C090C,9PF,50V GRP1555C1H9R0DZ01E C561 2203-000386 C-CERAMIC,CHIP;C150J,15PF,50V GRP1555C1H150JZ01E C617 2203-000679 C-CERAMIC,CHIP;C270J,27PF,50V GRP1555C1H270JZ01E C633 2203-005052 C-CERAMIC,CHIP;C3R3C,3.3PF,50V GRP1555C1H3R3CZ01E C657 2203-001221 C-CERAMIC,CHIP;C821K,820PF,50V GRP155R71H821KD01E C659 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V...
  • Page 14 Reference SEC Code Part Description Vendor Part No R215 2007-000140 R-CHIP;1K,5% RC1005J102CS R217 2007-000162 R-CHIP;100K,5% RC1005J104CS R400 2007-000148 R-CHIP;10K,5% RC1005J103CS R401 2007-000162 R-CHIP;100K,5% RC1005J104CS R402 2203-000714 C-CERAMIC,CHIP;C332K,3.3NF,50V CL05B332KBNC R403 2007-000162 R-CHIP;100K,5% RC1005J104CS R404 2007-000162 R-CHIP;100K,5% RC1005J104CS R405 2007-000162 R-CHIP;100K,5% RC1005J104CS R406 2007-000162 R-CHIP;100K,5%...
  • Page 15 Reference SEC Code Part Description Vendor Part No R524 2007-000157 R-CHIP;47K,5% RC1005J473CS R526 2007-000168 R-CHIP;470K,5% RC1005J474CS R527 2007-002796 R-CHIP;510,5% MCR01MZSJ511 R528 2007-000162 R-CHIP;100K,5% RC1005J104CS R529 2007-000157 R-CHIP;47K,5% RC1005J473CS R530 2007-002796 R-CHIP;510,5% MCR01MZSJ511 R531 2007-000139 R-CHIP;220,5% RC1005J221CS R532 2007-000141 R-CHIP;2.2K,5% RC1005J222CS R533 2007-000141 R-CHIP;2.2K,5%...
  • Page 16 Reference SEC Code Part Description Vendor Part No U430 1204-001811 IC;YMU759-QE2 YMU759-QE2 U501 1205-001881 IC-COMM. CONTROLLER;VP40575,BGA,1 VP40575 U502 1001-001145 IC;MAX4599EXT-T MAX4599EXT-T U504 1103-001262 IC-EEPROM;24C512C1,512KBIT,LAP,8P AT24C512C1-10CI-2.7 U506 1202-001036 IC;TC75W56FK-TE12L TC75W56FK-TE12L U611 1209-001354 IC-ETC, LINEAR;HD155173NPEL,QFP,2 HD155173NPEL V500 1405-001082 COMP-SMD;VC040205X150R VC040205X150R V507 1405-001082 COMP-SMD;VC040205X150R VC040205X150R V508...

  • Page 17: Main Parts List Bottom

    3-2 Main Parts List Bottom Reference SEC Code Part Description Vendor Part No C105 2404-001105 C-TA,CHIP;10UF/6.3V TCSCS0J106MPAS C106 2203-005061 C-CERAMIC,CHIP;C104Z,100NF,16V CL05F104ZONC C107 2203-005065 C-CERAMIC,CHIP;C105Z,1UF,10V CL10F105ZONC C108 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C109 2404-001105 C-TA,CHIP;10UF/6.3V TCSCS0J106MPAS C110 2203-005061 C-CERAMIC,CHIP;C104Z,100NF,16V CL05F104ZONC C111 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C112 2203-005065...
  • Page 18 Reference SEC Code Part Description Vendor Part No C556 2203-000386 C-CERAMIC,CHIP;C150J,15PF,50V GRP1555C1H150JZ01E C557 2203-003054 C-CERAMIC,CHIP;C090C,9PF,50V GRP1555C1H9R0DZ01E C590 2203-005482 C-CERAMIC,CHIP;C104K,100NF,10V GRP155R61A104KA01E C591 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C600 2203-000438 C-CERAMIC,CHIP;C102K,1NF,50V GRP155R71H102KA01E C601 2203-000254 C-CERAMIC,CHIP;C103K,10NF,16V GRP155R71C103KA01E C602 2203-000278 C-CERAMIC,CHIP;C100D,10PF,50V GRP1555C1H100JZ01E C604 2203-001259 C-CERAMIC,CHIP;C080D,8PF,50V GRP1555C1H8R0DZ01E C605 2203-005055 C-CERAMIC,CHIP;C5R6C,5.6PF,50V...
  • Page 19 Reference SEC Code Part Description Vendor Part No C650 2203-000438 C-CERAMIC,CHIP;C102K,1NF,50V GRP155R71H102KA01E C651 2203-000812 C-CERAMIC,CHIP;C330J,33PF,50V GRP1555C1H330JZ01E C652 2203-002443 C-CERAMIC,CHIP;C331K,330PF,50V CL05B331KBNC C653 2301-001197 C-CERAMIC,CHIP;390PF,16V ECHU1H391JX5 C654 2301-001213 C-CERAMIC,CHIP;6.8NF,16V ECHU1C682JX5 C655 2203-000679 C-CERAMIC,CHIP;C270J,27PF,50V GRP1555C1H270JZ01E C658 2203-000812 C-CERAMIC,CHIP;C330J,33PF,50V GRP1555C1H330JZ01E C662 2203-002525 C-CERAMIC,CHIP;C561K,560PF,50V GRP155R71H561KD01E C664 2203-000233 C-CERAMIC,CHIP;C101J,100PF,50V...
  • Page 20 Reference SEC Code Part Description Vendor Part No L618 2703-002207 INDUCTOR-SMD;CIH05T3N3SNC CIH05T3N3SNC L620 2703-002268 INDUCTOR-SMD;CIH05T8N2JNC CIH05T8N2JNC L622 2703-002198 INDUCTOR-SMD;10NH,5%,1.0X0.5X0.5M CIH05T10NJNC L623 2703-002208 INDUCTOR-SMD;2.2NH,0.3NH,1.0X0.5X CIH05T2N2SNC M100 4302-001119 BATTERY-LI(2ND);3V,0.1MAH,-,-,3.1 Q300 0506-001004 TR-SMALL SIGNAL;UMC5NTL UMC5NTR Q303 0501-002346 TR-SMALL SIGNAL;2SB1427-E-T100 2SB1427-E-T100 Q600 0504-001058 TR-SMALL SIGNAL;RN4985-TE85L RN4985-TE85L Q601 0504-001058...
  • Page 21 Reference SEC Code Part Description Vendor Part No R610 2007-000138 R-CHIP;100,5% RC1005J101CS R611 2007-001290 R-CHIP;24,5% RC1005J240CS R612 2007-001301 R-CHIP;68,5% RC1005J680CS R613 2007-000139 R-CHIP;220,5% RC1005J221CS R614 2007-000139 R-CHIP;220,5% RC1005J221CS R615 2007-000138 R-CHIP;100,5% RC1005J101CS R616 2007-000138 R-CHIP;100,5% RC1005J101CS R621 2007-000174 R-CHIP;47,5% RC1005J470CS R624 2007-000148 R-CHIP;10K,5%...
  • Page 22 Reference SEC Code Part Description Vendor Part No U607 4709-001214 COMP-SMD;DCS214E-0897 U608 1201-001821 IC-POWER AMP;08122,-,8P,-,DUAL,34 PF08122BS-TB U609 4709-001213 COMP-SMD;DCS214E-1747 U610 2806-001259 OSCILLATOR-VCO;1748MHZ,-,-,TP,2.8 VOD1748C29KRA U612 1209-001337 IC-PLL/SYNTHESISER;SI4133G-XM2R,L SI4133G-XM2R U613 2809-001252 OSCILLATOR-VCTCXO;13MHZ,2.5PPM,10 KT16-KEU30L-13.000M-T U634 2904-001328 FILTER-SAW;1.8425GHZ,75MHZ,925~96 FAR-G6CS-1G8425-L250 U636 1405-001110 VARISTOR;18V,20A,1X0.5X0.6MM,TP AVLC 14S 02 050 V200 1405-001110 VARISTOR;18V,20A,1X0.5X0.6MM,TP...
  • Page 23 4. Block Diagrams 4-1 Main Base Band Block Diagrams...

  • Page 24: Main Rf

    4-2 Main RF Block Diagrams...

  • Page 25: Rf Tx Part

    4-2-1 RF Tx Part Block Diagrams...

  • Page 26: Rf Rx Part

    4-2-2 RF Rx Part Block Diagrams...

  • Page 27: Power On

    5. Flow chart of trouble shooting 5-1 Power ON 'POWER ON' does not work Check the Battery Voltage Charge the Battery is more than 3.4V The node Check U100 and the path from +VBATT between D100 and M100 = 2.8V to M100 U106 pin 2,3,4 >...
  • Page 28 Flow chart of trouble shooting...
  • Page 29 5-2 Initial Initial Failure Check and repair the important U410 pin 4 = "H" ? signals of U501 as follows The node between R505 and C509 Check U505 = "H" (RST) R509 = "H" (BOOT) Resolder R509 Check all the other connection by Test S/W R526 = "H"...
  • Page 30 Flow chart of trouble shooting...

  • Page 31: Charging Part

    5-3 Charging Part Abnormal charging part Check the CN220 pin 1, 2 3.8V ? Replace TA Resolder Check the U303 pin 3 3.8V ? C200, V210, C316 U303 pin 4 = "L" ? Resolder R328 Resolder components around Check the U303 pin 5 1.5V ? U303 Flow chart of trouble shooting...
  • Page 32 Flow chart of trouble shooting...

  • Page 33: Sim Part

    5-4 Sim Part Phone can't access SIM card Check the circuit related to U102 U300 pin4,6 = 3V ? Replace the PBA U300 pin5 = "H" ? Replace U300 U300 pin2,3 = 3V ? Resoldering CN301 and check open CN310 pin1,7 = 3V ? connection from U300 to CN301 After Power ON, Check SIMCLK Signal on CN310 pin 1...
  • Page 34 Flow chart of trouble shooting...

  • Page 35: Microphone Part

    5-5 Microphone Part Microphone does not work Check the microphone Reassemble the MIC to Front Case contact state Check the circuit Resolder the R525, R527, R530, R531 from MIC or C561 C553, C532 and C538 Check the Key PCB Replace the Key PCB Flow chart of trouble shooting...
  • Page 36 Flow chart of trouble shooting 5-10...

  • Page 37: Speaker Part

    5-6 Speaker Part Receiver does not work Check the depression of Modify the receiver pins the receiver pins Replace the receiver Is receiver working? 5-11 Flow chart of trouble shooting...

  • Page 38: Key Data Input

    5-7 Key Data Input Check Initial operation the pin 1, 3, 5 and 7 Replace the PBA of CN211 low? When one of the keys is pushed, Resolder pin 1, 3, 5 and 7 one of pin 1, 3, 5 and 7 of CN211 of CN211 is high ? Key PCB is OK ?
  • Page 39 VC040214X300 V208 VC040214X300 V207 VC040214X300 V206 VC040214X300 U636 VC040214X300 V204 VC040214X300 V203 VC040214X300 V202 VC040214X300 V201 VC040214X300 V200 5-13 Flow chart of trouble shooting...

  • Page 40: Ring Indicator

    5-8 Ring Indicator Ring Indicator LED does not work GPO2 by Test S/W Q200, Q202, Q203 pin 2 = "H" ? Between LED201 and Replace LED201 R210, R211, R212 = "L" ? Resolder Check the LED Q200, Q202, Q203 R210, R211, R212 Flow chart of trouble shooting 5-14...
  • Page 41 5-15 Flow chart of trouble shooting...

  • Page 42: Back Light

    5-9 Back Light Backlight does not work Backlight "ON" mode Select backlight "ON" mode in the menu? Between R215 and R217 = "H"? GPO1 by test S/W LCD BACKLIGHT KEY PCB LED CN200 Pin 35, 36, 39, 40 3.3V? Check the circuit related U100 LCD backlight on ? Resolder LCD or Check Q201 Resolder R215, R217...
  • Page 43 5-17 Flow chart of trouble shooting...

  • Page 44: Melody Part

    5-10 Melody Part Melody is not work ing U430 Pin 7 Check the circuit contain ing U102 is H ? Check U430 Pin 1 Check the U41 3, U613 Wor king? U430 Pin 15 = H ? Check the R441, U106 U430 Pin 14 is wor kin g Check the R645, R440, C437...
  • Page 45 25 24 23 22 21 20 SPVSS SPVDD SDIN SYNC SCLK HPOUT-R SDOUT HPOUT-L/MONO 5-19 Flow chart of trouble shooting...

  • Page 46: Gsm Receiver

    5-11 GSM Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp. : -50 dBm U602 Check IF connector Pin 8 - > resolder U602 Resolder & Check U602 Pin 10 VC1 : L Pin 10 VC2 : L U604 Resolder Pin 1...

  • Page 47: Gsm Transmit

    5-12 GSM Transmit Tx On (level : 5) U602 Resolder Pin 8 U600 U602 Check Change or Resolder VC1 : L Pin 5 U602 VC2 : H Check Ant. S/W, Control Circuit U607 Resolder Pin 4 U607, C608 Check U608 U608 : +VBATT Resolder or Pin 1...

  • Page 48: Dcs Receiver

    5-13 DCS Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp. : -50 dBm U602 Check IF connector Pin 8 - > resolder U602 Resolder & Check U602 Pin 1 VC1 : L Pin 1 VC2 : L U604 Resolder Pin 3...

  • Page 49: Dcs Transmit

    5-14 DCS Transmit Tx On (level : 0) U602 Resolder Pin 8 U600 U602 Check Change or Resolder VC1 : H Pin 3 U602 VC2 : L Check Ant. S/W, Control Circuit U609 Resolder Pin 4 U609, C611 Check U608 U608 : +VBATT Resolder or Change Pin 8...
  • Page 50 GNDR GNDR SDAT RFOUT SCLK VDDR SENB AUXOUT VDDI PWDNB IFOUT GNDI 41 40 33 32 MIX2OUTB GNDIFLO MIX2OUT IOUT VCCIF IOUTB GNDIF QOUT RFLOIN QOUTB VCCRELO GNDIQ MIX1OUT VCCIQ MIX1OUTB RESET VCCMIX GNDMIX IINB MIX1GSMIN MIX1GSMINB QINB ICURAD PLLOUT VCTL VCC1 VDD1...

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