Samsung SGH-T408 Service Manual
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Samsung SGH-T408 Service Manual

Samsung SGH-T408 Service Manual

Dual band mobile cellular phone
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ELECTRONICS
SERVICE
DUAL BAND MOBILE CELLULAR PHONE
DUAL BAND Mobile
Cellular Phone
SGH-T408
Manual
CONTENTS
1. Exploded Views and Parts List
2. PCB Diagrams
3. Electrical Parts List
4. Block Diagrams
5. Flow Chart of Troubleshooting and
Circuit Diagrams

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Summary of Contents for Samsung SGH-T408

  • Page 1 DUAL BAND Mobile Cellular Phone ELECTRONICS SGH-T408 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 Troubleshooting and Circuit Diagrams...
  • Page 2 ELECTRONICS Samsung Electronics Co.,Ltd. Printed in Korea 01/2003. Rev 1.0 GH68-03159A...

  • Page 3: Table Of Contents

    1. Exploded Views and Parts List Main Main Parts List Travel Adapter Travel Adapter Parts List Ciger Light Adapter Ciger Light Adapter Parts List Test Jig EAR Microphone Data Kit 1-10 Battery Charger 2. PCB Diagrams Main Top Main Bottom 3.
  • Page 4 1. SGH-T408 Exploded Views and Parts List 1-1 Main Exploded Views and Parts List...

  • Page 5: Main Parts List

    1-2 Main Parts List Location Remark Description SEC CODE GH72-05005A DUAL WINDOW LCD GH75-02707A FOLDER UPPER GH96-01251A 3001-001360 SPEAKER 3101-001294 MOTOR GH75-02369A FOLDER LOWER GH72-05004A WINDOW LCD 6001-001429 SCREW GH74-03025A SCREW CAP GH75-02706A FRONT COVER GH75-02708A KEYPAD GH92-01419A MAIN PBA GH59-00593A VOLKEY F-PCB GH59-00598A...

  • Page 6: Travel Adapter

    1-3 Travel Adapter 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK GH44-00171A CHINA GH44-00184A EUROPE GH44-00171C UNITED KINGDOM Gh44-00171E TAIWAN Exploded Views and Parts List...

  • Page 7: Ciger Light Adapter

    1-5 Ciger Light Adapter 1-6 Ciger Light Adapter Parts List DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44-00170A BLACK Exploded Views and Parts List...

  • Page 8: Test Jig

    1-7 Test Jig TEST JIG GH80-10508A TEST JIG CABLE GH39-00079A RF CABLE GH39-00182A Exploded Views and Parts List...
  • Page 9 1-7-1 Test Jig POWER SUPPLY 8922 or 8960 WIRELESS COMMUNICATIONS TEST SET RF CABLE TEST JIG CABLE 232 CABLE Note PC Exploded Views and Parts List...

  • Page 10: Wearable Ear Microphone

    1-8 Wearable EAR Microphone Wearable EAR Microphone GH59-00394B 1-9 Data Kit DATA KIT GH39-00143B 1-10 Battery Charger BATTERY CHARGER GH44-00402A Exploded Views and Parts List...
  • Page 11 2. PCB Diagrams 2-1 Main Top PCB Diagrams...
  • Page 12 2-2 Main Bottom PCB Diagrams...

  • Page 13: Main Parts List Top

    3. Electrical Parts List 3-1 Main Parts List Top Refer Part Description Vendor Part No. ence CODE D302 0407-001002 DIODE-ARRAY “DAN222,80V,300mA,CA2-3,EM3,TP” DAN222 Q100 0501-000225 TR-SMALL SIGNAL “2SC4617,NPN,200mW,EM3,TP,120-5” 2SC4617R Q302 0501-002011 TR-SMALL SIGNAL “2SD2114K,NPN,200mW,SOT-23,TP,8” 2SD2114KT146V Q103 0504-001049 TR-DIGITAL “DTA114YE,PNP,150MW,10K/47K,EMT3,TP” DTA114YE Q101 0504-001151 TR-DIGITAL “PEMD10,NPN/PNP,300MW,2.2K/47KOHM,SOT-666,TP”...

  • Page 14: Electrical Parts List

    Refer Part Description Vendor Part No. ence CODE R316 2007-000138 R-CHIP “100ohm,5%,1/16W,DA,TP,1005” RC1005J101CS R317 2007-000138 R-CHIP “100ohm,5%,1/16W,DA,TP,1005” RC1005J101CS R468 2007-000139 R-CHIP “220ohm,5%,1/16W,DA,TP,1005” RC1005J221CS R474 2007-000139 R-CHIP “220ohm,5%,1/16W,DA,TP,1005” RC1005J221CS R106 2007-000140 R-CHIP “1Kohm,5%,1/16W,DA,TP,1005” RC1005J102CS R313 2007-000140 R-CHIP “1Kohm,5%,1/16W,DA,TP,1005” RC1005J102CS R102 2007-000141 R-CHIP “2.2Kohm,5%,1/16W,DA,TP,1005”...
  • Page 15 Refer Part Description Vendor Part No. ence CODE R100 2007-001244 R-CHIP “91Kohm,5%,1/16W,DA,TP,1005” RC1005J913CS R107 2007-001298 R-CHIP “51ohm,5%,1/16W,DA,TP,1005” RC1005J510CS R109 2007-001298 R-CHIP “51ohm,5%,1/16W,DA,TP,1005” RC1005J510CS R110 2007-001298 R-CHIP “51ohm,5%,1/16W,DA,TP,1005” RC1005J510CS R469 2007-002796 R-CHIP “510ohm,5%,1/16W,DA,TP,1005” ERJ2GEJ511X R472 2007-002796 R-CHIP “510ohm,5%,1/16W,DA,TP,1005” ERJ2GEJ511X R103 2007-002797 R-CHIP “560ohm,5%,1/16W,DA,TP,1005”...
  • Page 16 Refer Part Description Vendor Part No. ence CODE C458 2203-000233 “C-CERAMIC,CHIP” “0.1NF,5%,50V,C0G,TP,1005” CL05C101JBNC C459 2203-000233 “C-CERAMIC,CHIP” “0.1NF,5%,50V,C0G,TP,1005” CL05C101JBNC C460 2203-000233 “C-CERAMIC,CHIP” “0.1NF,5%,50V,C0G,TP,1005” CL05C101JBNC C107 2203-000254 “C-CERAMIC,CHIP” “10nF,10%,16V,X7R,TP,1005,-” CL05B103KONC C108 2203-000254 “C-CERAMIC,CHIP” “10nF,10%,16V,X7R,TP,1005,-” CL05B103KONC C109 2203-000254 “C-CERAMIC,CHIP” “10nF,10%,16V,X7R,TP,1005,-” CL05B103KONC C308 2203-000254 “C-CERAMIC,CHIP”...
  • Page 17 Refer Part Description Vendor Part No. ence CODE C414 2203-000679 “C-CERAMIC,CHIP” “0.027NF,5%,50V,C0G,TP,1005” CL05C270JBNC C417 2203-000679 “C-CERAMIC,CHIP” “0.027NF,5%,50V,C0G,TP,1005” CL05C270JBNC C479 2203-000679 “C-CERAMIC,CHIP” “0.027NF,5%,50V,C0G,TP,1005” CL05C270JBNC C480 2203-000679 “C-CERAMIC,CHIP” “0.027NF,5%,50V,C0G,TP,1005” CL05C270JBNC C496 2203-000679 “C-CERAMIC,CHIP” “0.027NF,5%,50V,C0G,TP,1005” CL05C270JBNC C126 2203-000812 “C-CERAMIC,CHIP” “0.033NF,5%,50V,C0G,TP,1005” GRP1555C1H330J C127 2203-000812 “C-CERAMIC,CHIP”...
  • Page 18 Refer Part Description Vendor Part No. ence CODE C145 2203-005450 “C-CERAMIC,CHIP” “0.0056nF,0.1pF,50V,NP0,TP,1005” GRP1555C1H5R6BZ01E C482 2203-005480 “C-CERAMIC,CHIP” “33nF,10%,10V,X7R,TP,1005,-” GRP155R71A333KA01E C488 2203-005480 “C-CERAMIC,CHIP” “33nF,10%,10V,X7R,TP,1005,-” GRP155R71A333KA01E C492 2203-005481 “C-CERAMIC,CHIP” “47nF,10%,10V,X7R,TP,1005,-” GRP155R71A473KA01E C300 2203-005482 “C-CERAMIC,CHIP” “100nF,10%,10V,X5R,TP,1005,-” GRP155R61A104KA01E C302 2203-005482 “C-CERAMIC,CHIP” “100nF,10%,10V,X5R,TP,1005,-” GRP155R61A104KA01E C303 2203-005482 “C-CERAMIC,CHIP”...
  • Page 19 Refer Part Description Vendor Part No. ence CODE CN302 3709-001244 CONNECTOR-CARD EDGE “6P,2MM,-,AU” PC-D6-A3-H2.9-S 3710-001816 CONNECTOR-SOCKET “18P,1R,0.5MM,ANGLE,AU” 1004-0018-319 CN100 3711-005229 CONNECTOR-HEADER “BOX,30P,2R,0.4MM,SMD-S,AU,BLK” 14-5602-030-001-829 EAR500 3722-001715 JACK-PHONE “6P,2.3PI,AU,BLK,-” 02-828P0-53BKA C322 4302-001119 BATTERY-LI(2ND) “3V,0.1MAH,-,-,3.1V,-” RB414II06N GH41-00362A PCB-SGHT410 MAIN “SGH-T410,FR-4,-,-,1.00T,100X155” GH41-00362A Electrical Parts List...

  • Page 20: Main Parts List Bottom

    D310 0601-001611 “CHIP,WHT,1.1X0.8MM,-” SLS-NNWH102TS D311 0601-001611 “CHIP,WHT,1.1X0.8MM,-” SLS-NNWH102TS U403 0801-002540 IC-CMOS LOGIC “7SZ19,DECODER,SOP,6P,49MIL,SINGLE,TP,PLASTIC” NC7SZ19P6X U400 1009-001010 IC-HALL EFFECT S/W “A3212ELH-SAMSUNG,SC-59A,3P,82MIL” A3212ELHLT- SAMSUNG U412 1204-001960 IC-MELODY “YMU762 MA-3,QFN,32P,6.2X5” YMU762-QE2 V401 1405-001019 VARISTOR “5.6V,-,1.6x0.8mm,TP” AVL 5M 03 300 V402 1405-001082 VARISTOR “5.6V,20A,1x0.5x0.6mm,TP”...
  • Page 21 Refer Part Description Vendor Part No. ence CODE R304 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R305 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R306 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R307 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R308 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R309 2007-007009 R-CHIP “75OHM,5%,1/16W,DA,TP,1005” RC1005J750CS R346 2007-007107 R-CHIP “100Kohm,1%,1/16W,DA,TP,1005”...
  • Page 22 4. Block Diagrams 4-1 Main Baseband Block Diagrams...

  • Page 23: Main Rf

    4-2 Main RF Block Diagrams...

  • Page 24: Rf Transmit Part

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

  • Page 25: Rf Receive Part

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

  • Page 26: Power On

    5. Flow Chart of Troubleshooting and Circuit Diagrams 5-1 Power ON 'POWER ON'does not work Check the Battery Voltage Charge the Battery is more than 3.4V? When the "END" key is pressed, Replace the PBA U302 pin 25 > 3.4V ? U302 pin 23 = 3.0V ? Check the circuit related to U302 U302 pin 21 = 2.5V ?
  • Page 27 PWR_ON VICHG VRTC RESET/ VBACKUP HP_PWR TCXO_EN DATA PWR_HOLD CHGR_EN/ Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 28 5-2 Initial Initial Failure After power on, Downloading SW is OK ? check and repair the important (Is CSROM signal OK ?) signals of U406 as follows The node Check the circuit between R456 and C462 related to reset = "H" (RST) R461 = "H"...
  • Page 29 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 30: Charging Part

    5-3 Charging Part Abnormal charging part Check the CN4-1 pin 17,18 > 4.9 V ? Replace TA Check the U302 pin 1 > 4.9 V ? Resolder C306 R311(CHG_ON side) = "L" ? Resolder R311 Resolder components around Check the U302 pin 3 4.2V ? Q301 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 31: Sim Part

    5-4 Sim Part Phone can't access SIM card Q304 pin 4 = 3.0 V ? Resolder R338 Replace Q304 or Q304 pin 5 = "H" ? Replace PBA Q304 pin 2, 3 = 3.0 V ? Replace Q304 After Power ON, Check SIMCLK Signal on CN302 pin 3 Replace PBA in a few second...
  • Page 32 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 33: Microphone Part

    5-5 Microphone Part Microphone does not work Check the connection Resolder MIC FPCB from MIC Check the circuit Resolder the R468, R469, R472, related to U406 R474, C482, C485 and C488 Check the MIC Replace the MIC Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 34 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 35: Speaker Part

    5-6 Speaker Part Speaker does not work R471 = "H"? Replace the PBA (MC_PDN) U105 pin 13 = "H" ? Resolder R118 Check the clock generation circuit Check the clock signal at Pin1 of U302 (related to U102 and Q100) U304 pin 3, 9 = 1.8 V ? Resolder U304 CN100 pin 5, 6 = 1.8 V ?
  • Page 36 SPVSS SPVDD HPOUT-R IOVDD HPOUT-L/MONO 5-11 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 37: Key Data Input

    5-7 Key Data Input Check Initial operation When one of the keys is pushed, Check the Dome sheet is it displayed on LCD Keypad is OK ? Replace the PBA 5-12 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 38: Receiver Part

    5-8 Receiver Part 5-13 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 39 5-14 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 40: Ring Indicator

    5-9 Ring Indicator Ring Indicator LED does not work U302 pin 17 3.0 V ? Check the circuit related to U302 Is Green color LED of 3LEDs Check U303, R342, D301 correctly work ? Is Red color LED of 3LEDs Check Q300, R340, D301 correctly work ? Is Blue color LED of 3LEDs...
  • Page 41 5-10 Back Light (for Color Main LCD) Backlight does not work LCD Contrast high level Select LCD Contrast high level in the menu ? U401 pin 2 = "H" ? CN100 pin 11 = "H" ? Check for the pulse signal Check the circuit Replace the PBA Resolder U401...
  • Page 42 5-11 Back Light (for Sub LCD & Key) Backlight does not work Backlight "ON" mode Select backlight "ON" mode in the menu? GPIO7 by test S/W Q302 pin 1 = "H" ? KEY PCB LED LCD BACKLIGHT R484 = "H" ? GPIO2 by test S/W Check the Check the CN100 pin 2 = "H"...

  • Page 43: Gsm Receiver

    5-12 GSM Receiver 5-18 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 44: Gsm Transmitter

    5-13 GSM Transmitter 5-19 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 45: Dcs Receiver

    5-14 DCS Receiver Flow Chart of Troubleshooting and Circuit Diagrams 5-20...

  • Page 46: Dcs Transmitter

    5-15 DCS Transmitter 5-21 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 47 IFLB RFLA IFLA RFLB VDDD RFLC RFLD 5-22 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 48 VDDA VDDC XOUT SCLK SENB VDD3 IFLO PDNB IFLO RFLOP RFLO VDD2 VDD4 DIAG DIAG Flow Chart of Troubleshooting and Circuit Diagrams 5-23...
  • Page 49 VBAT VCCO VCC2 VCC1 Flow Chart of Troubleshooting and Circuit Diagrams 5-24...

This manual is also suitable for:

Sgh-t410

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