Samsung SGH-R225 Service Manual
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Samsung SGH-R225 Service Manual

Samsung SGH-R225 Service Manual

Dual band mobile cellular phone
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ELECTRONICS
SERVICE
DUAL BAND MOBILE CELLULAR PHONE
DUAL BAND Mobile
Cellular Phone
SGH-R225
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-R225

  • Page 1 DUAL BAND Mobile Cellular Phone ELECTRONICS SGH-R225 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 03/2002 Rev 1.0 GH68-02691A...

  • 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-R225 Exploded Views and Parts List 1-1 Main SGH-R225 Exploded Views and Parts List...

  • Page 5: Main Parts List

    Remark FRONT COVER GH75-01702A SPEAKER 3001-001233 GH59-00240B FI-KEY GH72-03772A KEYPAD GH75-01700A MAIN PBA GH92-01278A GH07-00075B DOME SHEET GH72-02984B IF CONNECT COVER GH73-00758A MOTOR GH31-00019A ANTENNA GH42-00141C REAR COVER GH75-01165A R/F COVER GH73-00759A SCREW 6001-001542 SGH-R225 Exploded Views and Parts List...

  • 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 SGH-R225 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 SGH-R225 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 SGH-R225 Exploded Views and Parts List...
  • Page 9 1-7-1 Test Jig POWER SUPPLY 8922 or 8960 WIRELESS COMMVNCAATIONS TEST SET RF CABLE 232 CABLE TEST JIG CABLE Note PC SGH-R225 Exploded Views and Parts List...

  • Page 10: Battery Charger

    1-8 EAR Microphone EAR MICROPHONE GH59-00411A 1-9 Data Kit DATA KIT GH39-00078A 1-10 Battery Charger BATTERY CHAGER GH44-00256A SGH-R225 Exploded Views and Parts List...
  • Page 11 2. PCB Diagrams 2-1 Main Top SGH-R225 PCB Diagrams...

  • Page 12: Main Bottom

    2-2 Main Bottom SGH-R225 PCB Diagrams...

  • Page 13: Main Parts List Top

    U466 AM29DL162,2MX8BIT,FBGA,48P,-,90NS,3V,10%, PLASTIC,-40TO+85C,-,CMOS,TR AM29DL162DT-90WCI 1201-001864 U476 08123,-,8P,13.75X8MM,DUAL,-,-,4.5V,-,-25TO+100C,-,-,-,-,- PF08123B 1203-001204 U470 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.3 1203-001204 U621 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.3 1203-001454 U101 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.0 1203-001454 U102 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.0 1203-001454 U613 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.0 1203-001454 U619 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.0 1203-001454 U620 2981,SOT-23,5P,59MIL,PLASTIC,3 LP2981AIM5X-3.0 SGH-R225 Electrical Parts List...
  • Page 14 2007-000148 R435 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R438 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R450 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R461 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R526 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R535 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R554 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R558 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS 2007-000148 R582 10Kohm,5%,1/16W,DA,TP,1005 RC1005J103CS SGH-R225 Electrical Parts List...
  • Page 15 2007-001244 R105 91Kohm,5%,1/16W,DA,TP,1005 RC1005J913CS 2007-001292 R202 33ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ330X 2007-001298 R221 51ohm,5%,1/16W,DA,TP,1005 RC1005J510CS 2007-002796 R445 510ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ511X 2007-002796 R446 510ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ511X 2007-002797 R107 560ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ561X 2007-002797 R117 560ohm,5%,1/16W,DA,TP,1005 ERJ2GEJ561X 2007-002970 R210 56OHM,5%,1/16W,DA,TP,1005 RC1005J560CS 2007-002970 R728 56OHM,5%,1/16W,DA,TP,1005 RC1005J560CS SGH-R225 Electrical Parts List...
  • Page 16 2203-000233 C764 0.1nF,5%,50V,NP0,TP,1005 CM05CG101J50AH 2203-000254 C101 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C102 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C123 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C210 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C238 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C307 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C309 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH 2203-000254 C313 10nF,10%,16V,X7R,TP,1005,- CM05X7R103K16AH SGH-R225 Electrical Parts List...
  • Page 17 2203-000609 C203 22nF,10%,50V,X7R,TP,2012 CL21B223KBNC 2203-000628 C237 0.022nF,5%,50V,NP0,TP,1005 CM05CG220J50AH 2203-000679 C200 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C232 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C262 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C540 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C555 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C569 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH 2203-000679 C586 0.027nF,5%,50V,NP0,TP,1005 CM05CG270J50AH SGH-R225 Electrical Parts List...
  • Page 18 2203-000812 C763 0.033nF,5%,50V,NP0,TP,1005 CM05CG330J50AH 2203-000854 C244 0.039nF,5%,50V,NP0,TP,1005 CM05CG390J50AH 2203-000854 C698 0.039nF,5%,50V,NP0,TP,1005 CM05CG390J50AH 2203-000854 C699 0.039nF,5%,50V,NP0,TP,1005 CM05CG390J50AH 2203-000872 C538 0.003nF,0.25pF,50V,NP0,TP,1608 CL10C030CBNC 2203-000995 C400 0.047nF,5%,50V,NP0,TP,1005 CM05CG470J50AH 2203-000995 C401 0.047nF,5%,50V,NP0,TP,1005 CM05CG470J50AH 2203-001072 C447 0.056nF,5%,50V,NP0,TP,1005 CM05CG560J50AH 2203-001153 C215 0.068nF,5%,50V,NP0,TP,1005 CM05CG680J50AH SGH-R225 Electrical Parts List...
  • Page 19 2203-005234 C575 0.0012nF,0.25pF,50V,NP0,TP,1005 CM05CG1R2C50AH 2203-005234 C596 0.0012nF,0.25pF,50V,NP0,TP,1005 CM05CG1R2C50AH 2203-005382 C248 0.006nF,0.1pF,50V,NP0,TP,1005 GRP1555C1H6R0BZ01E 2203-005383 C753 7pF,0.1pF,50V,NPO,TP,1005,- GRP1555C1H7R0BZ01E 2203-005383 C754 7pF,0.1pF,50V,NPO,TP,1005,- GRP1555C1H7R0BZ01E 2203-005383 C755 7pF,0.1pF,50V,NPO,TP,1005,- GRP1555C1H7R0BZ01E 2203-005446 C413 0.0027nF,0.1pF,50V,NP0,TP,1005 GRP1555C1H2R7BZ01E 2203-005446 C721 0.0027nF,0.1pF,50V,NP0,TP,1005 GRP1555C1H2R7BZ01E 2203-005480 C450 33nF,10%,10V,X7R,TP,1005,- CM05X7R333K10AH SGH-R225 Electrical Parts List...
  • Page 20 2703-001952 L209 8.2nH,5%,1.0x0.5x0.5mm HK1005-8N2J-T 2703-001952 L211 8.2nH,5%,1.0x0.5x0.5mm HK1005-8N2J-T 2703-001952 L597 8.2nH,5%,1.0x0.5x0.5mm HK1005-8N2J-T 2703-001969 L218 8.2nH,10%,1.0x0.5x0.5mm HK1005-8N2K-T 2703-002267 L406 4.7NH,0.3NH,1.0X0.5X0.5MM CIH05T4N7SNC 2703-002308 L201 68NH,5%,1.0X0.5X0.5MM CIH05T68NJNC 2703-002309 L200 82NH,5%,1.0X0.5X0.5MM CIH05T82NJNC 2703-002314 L212 47NH,5%,1.0X0.5X0.5MM CIH05T47NJNC 2703-002314 L213 47NH,5%,1.0X0.5X0.5MM CIH05T47NJNC SGH-R225 Electrical Parts List...
  • Page 21 L604 AB,1kohm,1x0.5x0.5mm,50mA,TP,FERRITE,1.5ohm BLM15AG102PN1D 3705-001226 MCX,JACK,75MOHM,50OHM,0.45DB KMS-157 3709-001088 J402 6P,2.54mm,SMD-S,AU 2-1483271-2 3710-001105 2P,1R,1.27mm,SMD-S,AU 24-8005-002-100-867 3710-001595 J403 18P,1R,0.5mm,SMD-A,AUF 1004-0018-304 3722-001587 U400 6P,2.6PI,AG,BLK,- 02-828D0-53BKA 4302-001119 BAT1 3V,0.1MAH,-,-,3.1V,- RB414II06N 4709-001214 U622 880-915MHz,19.5+-1dB,13dB,2.0X1.25X0.7mm,TP DCS214E-0897 4709-001243 U623 1850-1910MHZ,14.8+-1DB,-,2X1.25X0.7MM,TP DCS214A-1880 GH61-00019A A200 SGH-N105,BE-CU,-,-,-,-,-,-,GLD,-,- SGH-R225 Electrical Parts List...

  • Page 22: Main Parts List Bottom

    R422 100Kohm,5%,1/16W,DA,TP,1005 RC1005J104CS 2007-000162 R423 100Kohm,5%,1/16W,DA,TP,1005 RC1005J104CS 2007-000172 R740 10ohm,5%,1/16W,DA,TP,1005 RC1005J100CS 2007-000172 R741 10ohm,5%,1/16W,DA,TP,1005 RC1005J100CS 2007-000172 R742 10ohm,5%,1/16W,DA,TP,1005 RC1005J100CS 2007-000172 R743 10ohm,5%,1/16W,DA,TP,1005 RC1005J100CS 2007-000932 R574 470ohm,5%,1/16W,DA,TP,1005 RC1005J471CS 2007-000932 R745 470ohm,5%,1/16W,DA,TP,1005 RC1005J471CS 2007-000932 R747 470ohm,5%,1/16W,DA,TP,1005 RC1005J471CS SGH-R225 Electrical Parts List 3-10...
  • Page 23 C412 1000nF,+80-20%,10V,Y5V,TP,1608 CL10F105ZONC 2203-005065 C415 1000nF,+80-20%,10V,Y5V,TP,1608 CL10F105ZONC 2203-005065 C417 1000nF,+80-20%,10V,Y5V,TP,1608 CL10F105ZONC 2203-005065 C422 1000nF,+80-20%,10V,Y5V,TP,1608 CL10F105ZONC 2203-005065 C490 1000nF,+80-20%,10V,Y5V,TP,1608 CL10F105ZONC 2203-005444 C404 0.003nF,0.1pF,50V,NP0,TP,1005 CL05C030BBNC 2703-001986 L408 33nH,5%,1.0x0.5x0.5mm MLK1005S33NJT 2703-001986 L409 33nH,5%,1.0x0.5x0.5mm MLK1005S33NJT 3002-001098 BUZ300 94dB,3V,150mA,2700Hz,TP BRT-03S 3-11 SGH-R225 Electrical Parts List...

  • Page 24: Main Baseband

    4. Block Diagrams 4-1 Main Baseband SGH-R225 Block Diagrams...

  • Page 25: Main Rf

    4-2 Main RF SGH-R225 Block Diagrams...

  • Page 26: Rf Transmit Part

    4-2-1 RF Transmit Part SGH-R225 Block Diagrams...

  • Page 27: Rf Receive Part

    4-2-2 RF Receive Part SGH-R225 Block Diagrams...

  • Page 28: Power On

    Check the circuit related to U619 U620 pin3 3.0 V ? Check U620 and related circuit Check the clock generation circuit Check for the clock signal at R107 (related to U100 and Q100) Check the initial operation SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 29 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 30 Test S/W R440 = "H" (MSIZE) Resolder R440 Check the circuit around LCD R438 = "L" (EXTPROC) Resolder R438 Check the circuit around U617(EEPROM) and data stored in it Replace PBA SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 31 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 32: 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 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 33 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 34: Sim Part

    Check SIMCLK Signal on J402 pin 3 Replace PBA in a few second After SIM card insert, Replace PBA J402 pin 2 = "H(SIMRST) ? Check the circuit around U617 (Serial EEPROM) and data stored in it SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 35 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 36: Microphone Part

    U619 pin 3 (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 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 37 5-10 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 38: Speaker Part

    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 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-11...
  • Page 39 5-12 SGH-R225 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, Replace the Keypad is it displayed on LCD Keypad is OK ? Replace the PBA SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-13...

  • Page 41: Alert Tone

    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 Buzzer is ok? Change the Buzzer 5-14 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 42 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-15...

  • Page 43: Ring Indicator

    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? 5-16 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 44 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-17...

  • Page 45: Back Light

    Q403 LCD backlight on ? Replace LCD Resolder R575,R579 Q403 pin 3 = "L" ? or resolder Q403 Resolder R745,R572,R746,R573 Key PCB LED on ? R747,R574,R748,R725 or Replace PBA 5-18 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...
  • Page 46 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-19...

  • Page 47: Gsm Receiver

    L212, L213, C242 U454 Resolder Pin 24, 25, 26, 27 OneC(U618), U454 ≥ 40 mV Check U454 Resolder Pin 32, 33 ≥ 2.5 V U454 (Pin 32,33,35) Pin 35 0.5 V Resolder U618 5-20 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 48: Gsm Transmitter

    U454, U200 U454 Resolder Pin 17, 18, 19, 20 OneC(U618) ≥ 40 mV Check 454 Resolder U454 (Pin35, Pin38) Pin 38 ≥ 2.5 V Check U618 Pin 35 0.5 V Resolder U618 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-21...

  • Page 49: Pcs Receiver

    Pin 24, 25, 26, 27 OneC(U618), U454 ≥ 40 mV Check U454 Resolder Pin 32,33 ≥ 2.5 V U454 (Pin 35, Pin 32, 33) Pin 35 ≥ 2.5 V Resolder U618 5-22 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

  • Page 50: Pcs Transmitter

    Check Pin 7, 5 path U454, U200 U454 Resolder Pin 17, 18, 19, 20 OneC(U618) ≥ 40 mV Check U454 Resolder U454 (Pin35, Pin38) Pin 38, Pin 35 Check U618 ≥ 2.5 V Resolder U618 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-23...
  • Page 51 GNDR5 GNDR3 GNDR1 SDAT RFOUT SCLK VDDR SENB AUXOUT VDDI PWDNB IFOUT GNDD2 GNDI GND4 GND6 5-24 SGH-R225 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 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams 5-25...
  • Page 53 VDD2 VDD1 VCTL 5-26 SGH-R225 Flow Chart of Troubleshooting and Circuit Diagrams...

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