Samsung SGH-R208 Service Manual
Samsung SGH-R208 Service Manual

Samsung SGH-R208 Service Manual

Dual band mobile cellular phone

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ELECTRONICS
SERVICE
DUAL BAND MOBILE CELLULAR PHONE
DUAL BAND Mobile
Cellular Phone
SGH-R208
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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Table of Contents
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Summary of Contents for Samsung SGH-R208

  • Page 1 DUAL BAND Mobile Cellular Phone ELECTRONICS SGH-R208 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 03/2001 Rev 1.0 GH68-02377A...
  • 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. Exploded Views and Parts List 1-1 Main Exploded Views and Parts List...
  • Page 5: Main Parts List

    1-2 Main Parts List SEC CODE Location No. Description Remark Navy Blue Gold Dark Silver MEC-FRONT COVER GH75-01439A GH75-01439B GH75-01439C FRONT COVER GH72-02670A GH72-02670B GH72-02670C WINDOW LCD GH72-02672B GH72-02672B GH72-02672B FI KEY GH72-03043A GH72-02782A GH72-02782A MEC-KEYPAD GH75-01164A GH75-01164A GH75-01164A MEC-DUMMY COVER GH75-01163A GH75-01163A GH75-01163A...
  • 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 GH39-00090A Exploded Views and Parts List...
  • Page 9 1-7-1 Test Jig POWER SUPPLY 8922 or 8960 WIRELESS COMMUNICATIONS TEST SET RF JIG CABLE TEST JIG CABLE 232 CABLE Note PC Exploded Views and Parts List...
  • Page 10: Battery Charger

    1-8 EAR Microphone EAR MICROPHONE GH59-00168A 1-9 Data Kit DATA KIT GH39-00078A 1-10 Battery Charger BATTERY CHAGER GH44-00221B 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 NO SEC CODE Reference Part Description Vendor Part No. 0401-001033 D441 DIODE-SWITCHING,MCL4154,25V,200mA,M-MELF MCL4154 0406-001083 D406 DIODE-TVS,6.1/-/7.2V,150W,SOT-323-5L ESDA6V1W5 0406-001083 D407 DIODE-TVS,6.1/-/7.2V,150W,SOT-323-5L ESDA6V1W5 0406-001083 D408 DIODE-TVS,6.1/-/7.2V,150W,SOT-323-5L ESDA6V1W5 0407-001002 D401 DIODE-ARRAY,DAN222,80V,300mA,CA2-3,EM3 DAN222 0407-001007 D304 DIODE-ARRAY,UMN1,80V,25mA,CA4-2,UM5 UMN1 0501-000218...
  • Page 14 NO SEC CODE Reference Part Description Vendor Part No. 1203-002247 U475 IC-VOL. DETECTOR,S-809,SOT-23-5,5P S-80926ALMP-DAP-T2 1205-001881 U618 IC-COMM. CONTROLLER,VP40575,BGA,180P VP40575 1205-001935 U454 IC-TRANSCEIVER,HD155128TF,TP,56P,-,-,3V HD155128TF 1209-001337 U478 IC-PLL/SYNTHESISER,LCC,28P,3.6V,-40to+85C SI4133-MLP28 1404-001005 THERMISTOR-NTC,47Kohm,5%,4050K,2.0mW/C NTH5G20P40B473J07TE 1405-001018 D419 VARISTOR,14V,-,1.6x0.8mm,TP VC060314A300R 1405-001018 D420 VARISTOR,14V,-,1.6x0.8mm,TP VC060314A300R 1405-001018 D424 VARISTOR,14V,-,1.6x0.8mm,TP VC060314A300R 1405-001082...
  • Page 15 NO SEC CODE Reference Part Description Vendor Part No. 2007-000148 R450 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R461 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R526 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R527 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R535 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R542 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R550 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R554 R-CHIP,10Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP103J 2007-000148 R558...
  • Page 16 NO SEC CODE Reference Part Description Vendor Part No. 2007-000242 R582 R-CHIP,1.5Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP152J 2007-001119 R726 R-CHIP,680ohm,5%,1/16W,DA,TP,1005 RK73K1ETP681J 2007-001244 R105 R-CHIP,91Kohm,5%,1/16W,DA,TP,1005 RK73K1ETP913J 2007-001298 R221 R-CHIP,51ohm,5%,1/16W,DA,TP,1005 RK73K1ETP510J 2007-001298 R724 R-CHIP,51ohm,5%,1/16W,DA,TP,1005 RK73K1ETP510J 2007-001301 R202 R-CHIP,68ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ680X 2007-001301 R210 R-CHIP,68ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ680X 2007-001305 R211 R-CHIP,120ohm,5%,1/16W,DA,TP,1005 RC1005J121CS 2007-001306 R728...
  • Page 17 NO SEC CODE Reference Part Description Vendor Part No. 2203-000233 C718 C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005 CL05C101JBNC 2203-000233 C719 C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005 CL05C101JBNC 2203-000254 C101 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C102 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C123 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C210 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C238 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C307 C-CERAMIC,CHIP,10nF,10%,16V,X7R,TP,1005 CL05B103KONC 2203-000254 C309...
  • Page 18 NO SEC CODE Reference Part Description Vendor Part No. 2203-000468 C747 C-CERAMIC,CHIP,0.001nF,0.25pF,50V,NP0,1608 CL10C010CBNC 2203-000585 C112 C-CERAMIC,CHIP,220pF,10%,50V,X7R,TP,1005 C1005X7R1H221KT 2203-000628 C237 C-CERAMIC,CHIP,0.022nF,5%,50V,NP0,TP,1005 CL05C220JBNC 2203-000628 C400 C-CERAMIC,CHIP,0.022nF,5%,50V,NP0,TP,1005 CL05C220JBNC 2203-000628 C401 C-CERAMIC,CHIP,0.022nF,5%,50V,NP0,TP,1005 CL05C220JBNC 2203-000679 C200 C-CERAMIC,CHIP,0.027nF,5%,50V,NP0,TP,1005 CL05C270JBNC 2203-000679 C232 C-CERAMIC,CHIP,0.027nF,5%,50V,NP0,TP,1005 CL05C270JBNC 2203-000679 C262 C-CERAMIC,CHIP,0.027nF,5%,50V,NP0,TP,1005 CL05C270JBNC 2203-000679 C540...
  • Page 19 NO SEC CODE Reference Part Description Vendor Part No. 2203-001153 C215 C-CERAMIC,CHIP,0.068nF,5%,50V,NP0,TP,1005 CL05C680JBNC 2203-001153 C494 C-CERAMIC,CHIP,0.068nF,5%,50V,NP0,TP,1005 CL05C680JBNC 2203-002525 C126 C-CERAMIC,CHIP,0.56nF,10%,50V,X7R,TP,1005 C1005X7R1H561KT 2203-002525 C137 C-CERAMIC,CHIP,0.56nF,10%,50V,X7R,TP,1005 C1005X7R1H561KT 2203-002525 C481 C-CERAMIC,CHIP,0.56nF,10%,50V,X7R,TP,1005 C1005X7R1H561KT 2203-002668 C214 C-CERAMIC,CHIP,0.0005nF,0.1pF,50V,1005 CL05C0R5BBNC 2203-003054 C329 C-CERAMIC,CHIP,0.009nF,0.25pF,50V,1005 C1005C0G1H090CT 2203-003054 C444 C-CERAMIC,CHIP,0.009nF,0.25pF,50V,1005 C1005C0G1H090CT 2203-003054 C445...
  • Page 20 NO SEC CODE Reference Part Description Vendor Part No. 2203-005446 C721 C-CERAMIC,CHIP,0.0027nF,0.1pF,50V,1005 C1005C0G1H2R7BT 2203-005480 C450 C-CERAMIC,CHIP,33nF,10%,10V,X7R,TP,1005 C1005X7R1C333KT 2203-005480 C451 C-CERAMIC,CHIP,33nF,10%,10V,X7R,TP,1005 C1005X7R1C333KT 2203-005481 C459 C-CERAMIC,CHIP,47nF,10%,10V,X7R,TP,1005 C1005X7R1A473KT 2203-005482 C746 C-CERAMIC,CHIP,100nF,10%,10V,X5R,TP,1005 GRM36X5R104K10PT 2203-005482 C751 C-CERAMIC,CHIP,100nF,10%,10V,X5R,TP,1005 GRM36X5R104K10PT 2203-005503 C456 C-CERAMIC,CHIP,0.18nF,5%,25V,NP0,TP,1005 C1005CH1E181J 2203-005503 C457 C-CERAMIC,CHIP,0.18nF,5%,25V,NP0,TP,1005 C1005CH1E181J 2203-005552 C727...
  • Page 21 NO SEC CODE Reference Part Description Vendor Part No. 2703-001952 L597 INDUCTOR-SMD,8.2nH,5%,1.0x0.5x0.5mm HK1005-8N2J-T 2703-001953 L218 INDUCTOR-SMD,6.8nH,5%,1.0x0.5x0.5mm HK1005-6N8J-T 2801-003856 CRYSTAL-SMD,0.032786MHz,20ppm MC-146(32.768KHZ,20P 2806-001239 U200 OSCILLATOR-VCO,1748MHz,-,50ohm,TP,2.8V VOF1748C28KRF 2809-001237 U100 OSCILLATOR-VCTCXO,13MHz,5ppm,10Kohm KT16-KEU30L-13.000M-T 2901-001116 E200 FILTER-EMI SMD,50V,0.3A,-,470pF NFM2012R13C471R 2904-001235 F203 FILTER-SAW,1.8425GHz,75MHz,+-37.5MHz FAR-G6CH-1G8425-L218 2904-001300 F204 FILTER-SAW,1.8425GHZ,75MHZ,1805-1880MHZ FAR-G6CH-1G8425-L227B 2904-001302 F200...
  • Page 22: Main Parts List Bottom

    3-2 Main Parts List Bottom NO SEC CODE Reference Part Description Vendor Part No. 0407-001002 D302 DIODE-ARRAY,DAN222,80V,300mA,CA2-3,EM3 DAN222 0501-002011 Q300 TR-SMALL SIGNAL,2SD2114K,NPN,200mW,SOT-23 2SD2114KT146V 0504-001012 U209 TR-DIGITAL,DTC114YE,NPN,150MW,10K/47K DTC114YE 0504-001058 U204 TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm RN4985 0504-001058 U492 TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm RN4985 0504-001058 U493 TR-DIGITAL,RN4985,NPN/PNP,200mW,2.2Kohm RN4985 0601-001402 LED1 LED,CHIP,RED/Y-GRN,1.2x1.5mm,660/570nm CL165HR/YG-D-T...
  • Page 23 NO SEC CODE Reference Part Description Vendor Part No. 2203-000654 C585 C-CERAMIC,CHIP,270pF,10%,50V,X7R,TP,1005 C1005X7R1H271KT 2203-000438 C720 C-CERAMIC,CHIP,1nF,10%,50V,X7R,TP,1005 CL05B102KBNC 2203-000995 C713 C-CERAMIC,CHIP,0.047nF,5%,50V,NP0,TP,1005 CL05C470JBNC 2203-000812 C664 C-CERAMIC,CHIP,0.033nF,5%,50V,NP0,TP,1005 CL05C330JBNC 2203-000311 C657 C-CERAMIC,CHIP,0.12nF,5%,50V,NP0,TP,1005 CL05C121JANC 2203-000233 C658 C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005 CL05C101JBNC 2203-000679 C665 C-CERAMIC,CHIP,0.027nF,5%,50V,NP0,TP,1005 CL05C270JBNC 2203-000438 C270 C-CERAMIC,CHIP,1nF,10%,50V,X7R,TP,1005 CL05B102KBNC 2203-000679 C267...
  • Page 24 4. Block Diagrams 4-1 Main Baseband Block Diagrams...
  • Page 25: Main Rf

    4-2 Main RF Block Diagrams...
  • Page 26: Rf Transmit Part

    4-2-1 RF Transmit Part Block Diagrams...
  • Page 27: Rf Receive Part

    4-2-2 RF Receive Part Block Diagrams...
  • Page 28: 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 3.2V When the "END" key is pressed, the voltage of "D304 pin1" Replace Keypad 3.6V? U474 pin 2,3 >...
  • Page 29 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 30 5-2 Initial Initial Failure After power on, Downloading SW is OK ? check and repair the important (Is CSROM signal OK ?) signals of U618 as follows The node Check the circuit between R661 and C712 related to reset = "H" (RST) R348 = "H"...
  • Page 31 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 32: Charging Part

    5-3 Charging Part Abnormal charging part Check the J403 pin 17,18 > 4.9 V ? Replace TA Check the U614 pin 3 > 4.9 V ? Resolder C710 R594(CHG_ON side) = "L" ? Resolder R594 Resolder components around Check the U614 pin 5 4.2V ? U614 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 33 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 34: Sim Part

    5-4 Sim Part Phone can't access SIM card Q402 pin4 = 3.0 V ? Check the circuit around U620 Replace Q402 or Q402 pin5 = "H" ? Replace PBA Replace Q402 or Q402 pin 2, 3 = 3.0 V ? Resolder C434 After Power ON, Resoldering C718 or...
  • Page 35 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 36: Microphone Part

    5-5 Microphone Part Microphone does not work U400 pin 4, 5 = short? Resolder U400 U619 pin 5 (AVCC) 3.0V? Check the circuit related to U619 Resolder the Check the circuit R444,R445,R446,R447, from U618 to MIC1 C446,C450,C451 Check the tension of MIC Module Replace the Mic or Mic Holder Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 37 5-10 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 38: Speaker Part

    5-6 Speaker Part Speaker does not work U400 pin 2, 3 = short Resoler U400 U400 pin 2, 3, 6 = 1.25 V ? Replace the PBA Check Modify the SPK pins the tension of the Speaker Is Speaker working? Replace the Speaker Flow Chart of Troubleshooting and Circuit Diagrams 5-11...
  • Page 39 5-12 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 40: 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 Flow Chart of Troubleshooting and Circuit Diagrams 5-13...
  • Page 41: Alert Tone

    5-8 Alert Tone Abnormal Alert tone Is there alert wave form on the ALERT by Test S/W R305 during alert tone test? Is there alert wave form on the Check the circuit related to Q300 Q300 pin 3 during alert tone test? U470 pin 5 3.3V? Check the circuit related to U470...
  • Page 42 Flow Chart of Troubleshooting and Circuit Diagrams 5-15...
  • Page 43: Ring Indicator

    5-9 Ring Indicator Ring Indicator LED does not work U621 pin 5 3.0V? Check the circuit related to U621 Is Green color of Check Q408,R727,LED1 3 LEDs correctly work? Is Red color LED of Check Q407,R726,LED1 3 LEDs correctly work? Is Blue color LED of Check Q406,R728,LED2 3 LEDs correctly work?
  • Page 44 Flow Chart of Troubleshooting and Circuit Diagrams 5-17...
  • Page 45: Back Light

    5-10 Back Light Backlight does not work Backlight "ON" mode Select backlight "ON" mode in the menu? R575 = "H" ? GPO1 by test S/W LCD BACKLIGHT KEY PCB LED Resolder R575,R579 U625 pin 3 = "L" ? or replace U625 LCD backlight on ? Replace LCD Resolder R575,R579...
  • Page 46 Flow Chart of Troubleshooting and Circuit Diagrams 5-19...
  • Page 47: Gsm Receiver

    5-11 GSM Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp. : -50 dBm U203 Resolder Pin 8 -65 dBm U203 Resolder & Check U203 Pin 10 VC1 : L Pin 10 -65 dBm VC2 : L -65 dBm F203 Resolder...
  • Page 48: Gsm Transmitter

    5-12 GSM Transmitter Tx On (level : 5) U203 Resolder Pin 8 30 dBm U203 Check Change or Resolder VC1 : L Pin 5 U203 VC2 : H 30 dBm Check Ant. S/W Control Circuit U318 Resolder Pin 5 U318, C264 30 dBm Check U476...
  • Page 49: Dcs Receiver

    5-13 DCS Receiver Rx On RF input : CH center freq. + 67.7 kHz Amp. : -50 dBm U203 Resolder Pin 8 -65 dBm U203 Resolder & Check U203 Pin 1 VC1 : L Pin 1 -65 dBm VC2 : L -65 dBm F203 Resolder...
  • Page 50: Dcs Transmitter

    5-14 DCS Transmitter Tx On (level : 0) U203 Resolder Pin 8 25 dBm U203 Check Change or Resolder VC1 : H Pin 3 U203 VC2 : L 25 dBm Check Ant. S/W Control Circuit U318 Resolder Pin 7 U318, C263 25 dBm Check U476...
  • Page 51 GNDR5 GNDR3 GNDR1 SDAT RFOUT SCLK VDDR SENB AUXOUT VDDI PWDNB IFOUT GNDD2 GNDI GND4 GND6 5-24 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 52 MIX2OUTB GNDIFLO MIX2OUT IOUT VCCIF IOUTB GNDIF QOUT RFLOIN QOUTB VCCRELO GNDIQ MIX1OUT VCCIQ MIX1OUTB RESET VCCMIX GNDMIX IINB MIX1GSMIN MIX1GSMINB QINB ICURAD PLLOUT Flow Chart of Troubleshooting and Circuit Diagrams 5-25...
  • Page 53 VDD2 VDD1 G1 9 VCTL 5-26 Flow Chart of Troubleshooting and Circuit Diagrams...

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