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Samsung SGH-N625 Service Manual

Dual band mobile cellular phone
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Download this manual See also: Owner's Manual
ELECTRONICS
SERVICE
DUAL BAND Mobile Cellular Phone
DUAL BAND Mobile
Cellular Phone
SGH-N625
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-N625

  • Page 1 DUAL BAND Mobile Cellular Phone ELECTRONICS SGH-N625 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 08/2002 Rev 1.0 GH68-03123A...

  • Page 3: Table Of Contents

    1. Exploded Views and Parts List Main Main Parts List Travel Adapter Travel Adapter Parts List Test Jig 1-5-1 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-N625) Exploded Views and Parts List...

  • Page 5: Main Parts List

    1-2 Main Parts List SEC CODE DESCRIPTION REMARK Q’TY GH75-02239A FRONT COVER 3001-001199 SPEAKER GH59-00240B GH72-03376D KEYPAD GH59-00282A KEY PCB GH73-00923A LCD COVER GH75-01490A KEY-VOLUME GH82-00114A MAIN PBA GH07-01336A GH73-00893A CONNECTOR COVER GH73-03213B SILELD COVER 3001-001267 SPEAKER GH75-01471B REAR COVER GH31-00033A MOTOR GH73-00892A...

  • Page 6: Travel Adapter

    1-3 Travel Adapter 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK GH44-00171A 1-5 Test Jig TEST JIG GH80-10508A Exploded Views and Parts List...
  • Page 7 TEST JIG CABLE GH39-00079A RF JIG CABLE GH39-00094A DM CABLE GH39-00143B Exploded Views and Parts List...

  • Page 8: Normal Ear Microphone

    1-5-1 Test Jig POWER SUPPLY 8922 or 8960 WIRELESS COMMVNCATIONS TEST SET RF JIG CABLE 232 CABLE TEST JIG CABLE 1-6 Normal EAR Microphone NORMAL EARPHONE GH59-0033aA 1-7 Data Kit DATA KIT GH39-00078A Exploded Views and Parts List...
  • Page 9 2. PCB Diagrams 2-1 Main Top PCB Diagrams...

  • Page 10: Main Bottom

    2-2 Main Bottom PCB Diagrams...

  • 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” TCSCS0J106MPAR 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 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” GRP1555C1H330JZ01E C512 2203-000812 “C-CERAMIC,CHIP;C330J,33PF,50V” GRP1555C1H330JZ01E C513 2203-000812 “C-CERAMIC,CHIP;C330J,33PF,50V” GRP1555C1H330JZ01E C514 2203-000812 “C-CERAMIC,CHIP;C330J,33PF,50V”...
  • Page 13 Reference SEC Code Part Description Vendor Part No C560 2203-003054 “C-CERAMIC,CHIP;C090C,9PF,50V” GRP1555C1H9R0DZ01E C561 2203-000386 “C-CERAMIC,CHIP;C150J,15PF,50V” GRP1555C1H150JZ01E C591 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V” GRP155R71C103KA01E C617 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E C633 2203-005446 “C-CERAMIC,CHIP;C2R7B,2.7PF,50V” GRP1555C1H2R7BZ01E C657 2203-001221 “C-CERAMIC,CHIP;C821K,820PF,50V” CL05B821KBNC C659 2203-000233 “C-CERAMIC,CHIP;C101J,100PF,50V” GRP1555C1H101JD01E C660 2203-000233 “C-CERAMIC,CHIP;C101J,100PF,50V” GRP1555C1H101JD01E C661 2203-000995 “C-CERAMIC,CHIP;C470J,47PF,50V”...
  • Page 14 Reference SEC Code Part Description Vendor Part No R207 2011-001344 “R-NETWORK;100ohm,5%,1/16W,L,CHIP,” EXB28V101JX R208 2007-000170 “R-CHIP;1M,5%” RC1005J105CS R209 2007-000566 “R-CHIP;220K,5%” RC1005J224CS R210 2007-000138 “R-CHIP;100,5%” RC1005J101CS R211 2007-001301 “R-CHIP;68,5%” RC1005J680CS R212 2007-000139 “R-CHIP;220,5%” RC1005J221CS R213 2007-000172 “R-CHIP;10,5%” RC1005J100CS R214 2007-000172 “R-CHIP;10,5%” RC1005J100CS R215 2007-000140 “R-CHIP;1K,5%”...
  • Page 15 Reference SEC Code Part Description Vendor Part No R521 2007-000152 “R-CHIP;20K,5%” RC1005J203CS R523 2007-000162 “R-CHIP;100K,5%” RC1005J104CS R524 2007-000157 “R-CHIP;47K,5%” RC1005J473CS R525 2007-000139 “R-CHIP;220,5%” RC1005J221CS 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%”...
  • Page 16 Reference SEC Code Part Description Vendor Part No U410 1109-001204 IC;LRS1383 LRS1383 U413 0801-002727 “IC-CMOS LOGIC;27WZ04,INVERTER,SOT” NL27WZ04DFT2 U430 1204-001811 IC;YMU759-QE2 YMU759-QE2 U501 1205-001881 “IC-COMM. CONTROLLER;VP40575,BGA,1” VP40575 U502 1001-001145 IC;MAX4599EXT-T DG9411DL U506 1202-001036 IC;TC75W56FK-TE12L TC75W56FK-TE12L U520 1103-001262 IC;AT24C512C1-10CI-2.7 AT24C512C1-10CI-2.7 U611 1209-001354 “IC-ETC, LINEAR;HD155173NPEL,QFP,2”...

  • Page 17: Main Parts List Bottom

    3-2 Main Parts List Bottom Reference SEC Code Part Description Vendor Part No GH61-00026A “SPRING ETC-ANT.CONTACT;SGH-N620,B” C105 2404-001105 “C-TA,CHIP;10UF/6.3V” TCSCS0J106MPAR C106 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” CL05F104ZONC C107 2203-005065 “C-CERAMIC,CHIP;C105Z,1UF,10V” CL10F105ZPNC C108 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V” GRP155R71C103KA01E C109 2404-001105 “C-TA,CHIP;10UF/6.3V” TCSCS0J106MPAR C110 2203-005061 “C-CERAMIC,CHIP;C104Z,100NF,16V” CL05F104ZONC C111 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V”...
  • Page 18 Reference SEC Code Part Description Vendor Part No 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” GRP1555C1H5R6CZ01E C607 2203-000278 “C-CERAMIC,CHIP;C100D,10PF,50V” GRP1555C1H100JZ01E C608 2203-000233 “C-CERAMIC,CHIP;C101J,100PF,50V” GRP1555C1H101JD01E C609 2203-000679 “C-CERAMIC,CHIP;C270J,27PF,50V” GRP1555C1H270JZ01E C611 2203-000995 “C-CERAMIC,CHIP;C470J,47PF,50V”...
  • Page 19 Reference SEC Code Part Description Vendor Part No 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” GRP1555C1H101JD01E C665 2203-000233 “C-CERAMIC,CHIP;C101J,100PF,50V” GRP1555C1H101JD01E C669 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V” GRP155R71C103KA01E C670 2203-002525 “C-CERAMIC,CHIP;C561K,560PF,50V” GRP155R71H561KD01E C671 2203-000254 “C-CERAMIC,CHIP;C103K,10NF,16V” GRP155R71C103KA01E C673 2203-002525 “C-CERAMIC,CHIP;C561K,560PF,50V”...
  • Page 20 Reference SEC Code Part Description Vendor Part No Q604 0501-000225 TR-SMALL SIGNAL;2SC4617 2SC4617R R102 2007-000162 “R-CHIP;100K,5%” RC1005J104CS R103 2007-000162 “R-CHIP;100K,5%” RC1005J104CS R104 2007-000140 “R-CHIP;1K,5%” RC1005J102CS R105 2007-000162 “R-CHIP;100K,5%” RC1005J104CS R107 2007-000140 “R-CHIP;1K,5%” RC1005J102CS R108 2007-000140 “R-CHIP;1K,5%” RC1005J102CS R300 2007-000162 “R-CHIP;100K,5%” RC1005J104CS R301 2007-000162...
  • Page 21 Reference SEC Code Part Description Vendor Part No R642 2011-001264 “R-NETWORK;10ohm,5%,1/16W,L,CHIP,8” EXB28V100J R643 2007-001319 “R-CHIP;1.2K,5%” MCR01MZSJ122 R644 2007-000172 “R-CHIP;10,5%” RC1005J100CS 3404-001152 “SWITCH-TACT;12V DC,20mA,160gf,4.5” LS10N2-T 3404-001152 “SWITCH-TACT;12V DC,20mA,160gf,4.5” LS10N2-T TH300 1404-001005 “THERMISTOR-NTC;47Kohm,5%,4050K,2.” NCP21WB473J03RA U102 1203-002076 IC;LP2985AIM5-3.0 LP2985AIM5-3.0 U103 1203-001701 IC;LP2982AIM5X-3.0 LP2982AIM5X-3.0 U104 0505-001423 TR-SMALL SIGNAL;FDG6323L...
  • Page 22 Reference SEC Code Part Description Vendor Part No V213 1405-001093 “VARISTOR;14V,20A,1x0.5x0.6mm,TP” VC040214X300 V400 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V401 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V402 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V501 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V502 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V503 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V504 1405-001082 “VARISTOR;5.6V,20A,1x0.5x0.6mm,TP” VC040205X150R V505 1405-001082 “VARISTOR;5.6V,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 5. Flow chart of trouble shooting 5-1 Power ON Flow chart of trouble shooting...
  • Page 28 Flow chart of trouble shooting...
  • Page 29 5-2 Initial Initial Failure Check and repair the important U410 pin 4 = "H" ? The node = "H" (RST) Check all the other connection by Test S/W R526 = "H" (MSIZE) Resolder R526 Check the circuit around LCD Check the circuit and data stored in it Replace PBA Flow chart of trouble shooting...
  • 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 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 Flow chart of trouble shooting 5-18...
  • 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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