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Electrical Parts List

3-4

NO SEC CODE Reference

Part Description

Vendor Part No.

123

2007-000242

R582

R-CHIP,1.5Kohm,5%,1/16W,DA,TP,1005

RK73K1ETP152J

124

2007-001119

R726

R-CHIP,680ohm,5%,1/16W,DA,TP,1005

RK73K1ETP681J

125

2007-001244

R105

R-CHIP,91Kohm,5%,1/16W,DA,TP,1005

RK73K1ETP913J

126

2007-001298

R221

R-CHIP,51ohm,5%,1/16W,DA,TP,1005

RK73K1ETP510J

127

2007-001298

R724

R-CHIP,51ohm,5%,1/16W,DA,TP,1005

RK73K1ETP510J

128

2007-001301

R202

R-CHIP,68ohm,5%,1/16W,DA,TP,1005

ERJ2GEJ680X

129

2007-001301

R210

R-CHIP,68ohm,5%,1/16W,DA,TP,1005

ERJ2GEJ680X

130

2007-001305

R211

R-CHIP,120ohm,5%,1/16W,DA,TP,1005

RC1005J121CS

131

2007-001306

R728

R-CHIP,150ohm,5%,1/16W,DA,TP,1005

RK73K1ETP151J

132

2007-001307

R727

R-CHIP,180ohm,5%,1/16W,DA,TP,1005

RK73K1ETP181J

133

2007-001311

R218

R-CHIP,270ohm,5%,1/16W,DA,TP,1005

RK73K1ETP271J

134

2007-002796

R445

R-CHIP,510ohm,5%,1/16W,DA,TP,1005

RK73K1ETP511J

135

2007-002796

R446

R-CHIP,510ohm,5%,1/16W,DA,TP,1005

RK73K1ETP511J

136

2007-002965

R217

R-CHIP,15OHM,5%,1/16W,DA,TP,1005

RK73K1ETP150J

137

2007-007107

R658

R-CHIP,100Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP1003F

138

2007-007317

R452

R-CHIP,2.2Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP2201F

139

2007-007317

R453

R-CHIP,2.2Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP2201F

140

2007-007317

R454

R-CHIP,2.2Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP2201F

141

2007-007317

R455

R-CHIP,2.2Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP2201F

142

2007-007317

R594

R-CHIP,2.2Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP2201F

143

2007-007318

R456

R-CHIP,1Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP1001F

144

2007-007318

R457

R-CHIP,1Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP1001F

145

2007-007318

R458

R-CHIP,1Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP1001F

146

2007-007318

R459

R-CHIP,1Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP1001F

147

2007-007590

R659

R-CHIP,82Kohm,1%,1/16W,DA,TP,1005

RK73H1ETP8202F

148

2007-007771

R319

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

149

2007-007771

R401

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

150

2007-007771

R670

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

151

2007-007771

R671

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

152

2007-007771

R733

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

153

2007-007771

R734

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

154

2007-007771

R739

R-CHIP,0OHM,5%,1/16W,DA,TP,1005

ERJ2GE0R00L

155

2011-001344

R320

R-NETWORK,100ohm,5%,1/16W,L,CHIP,8P,TP

EXB28V101JX

156

2011-001344

R485

R-NETWORK,100ohm,5%,1/16W,L,CHIP,8P,TP

EXB28V101JX

157

2011-001345

R449

R-NETWORK,10Kohm,5%,1/16W,L,CHIP,8P,TP

EXB28V103JX

158

2203-000233

C144

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

159

2203-000233

C305

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

160

2203-000233

C452

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

161

2203-000233

C453

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

162

2203-000233

C454

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

163

2203-000233

C455

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

164

2203-000233

C658

C-CERAMIC,CHIP,0.1nF,5%,50V,NP0,TP,1005

CL05C101JBNC

Summary of Contents for SGH-R208

Page 1: ... BAND Mobile Cellular Phone SGH R208 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: ...Samsung Electronics Co Ltd Printed in Korea 03 2001 Rev 1 0 GH68 02377A ELECTRONICS ...

Page 3: ...ain Bottom 3 Electrical Parts List 3 1 Main Parts List Top 3 2 Main Parts List Bottom 4 Block Diagrams 4 1 Main Baseband 4 2 Main RF 4 2 1 RF Transmit Part 4 2 2 RF Receive Part 5 Flow Chart of Troubleshooting and Circuit Diagrams 5 1 Power ON 5 2 Initial 5 3 Charging Part 5 4 Sim Part 5 5 Microphone Part 5 6 Speaker Part 5 7 Key Data Input 5 8 Alert Tone 5 9 Ring Indicator 5 10 Back Light 5 11 GS...

Page 4: ...Exploded Views and Parts List 1 1 1 Exploded Views and Parts List 1 1 Main 1 2 3 4 8 9 10 11 12 6 5 7 1 5 1 2 1 8 1 1 1 7 1 6 1 3 1 4 7 1 7 2 7 3 7 4 7 5 ...

Page 5: ... 02984A SA 3 MAIN PBA GH92 01222A GH92 01222A GH92 01222A SA 4 BUZZER 3002 001098 3002 001098 3002 001098 SA 5 DISPLAY LCD GH07 00075B GH07 00075B GH07 00075B SA 6 I F COVER GH73 00758A GH73 00758E GH73 00758F SA 7 MEC REAR COVER GH75 01165A GH75 01165D GH75 01165E SA 7 1 REAR COVER GH72 02674A GH72 02674D GH72 02674E SNA 7 2 VIBRATOR GH31 00019A GH31 00019A GH31 00019A SA 7 3 BRACKET ANT GH71 005...

Page 6: ...Exploded Views and Parts List 1 3 1 4 Travel Adapter Parts List TYPE SEC CODE REMARK A GH44 00171A CHINA B GH44 00184A EUROPE C GH44 00171C UNITED KINGDOM D Gh44 00171E TAIWAN 1 3 Travel Adapter A B C D ...

Page 7: ...1 4 1 5 Ciger Light Adapter Exploded Views and Parts List 1 6 Ciger Light Adapter Parts List DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44 00170A BLACK ...

Page 8: ...1 5 Exploded Views and Parts List 1 7 Test Jig TEST JIG GH80 10508A TEST JIG CABLE GH39 00079A RF CABLE GH39 00090A ...

Page 9: ...1 6 Exploded Views and Parts List 1 7 1 Test Jig DC POWER SUPPLY 232 CABLE TEST JIG CABLE RF JIG CABLE Note PC 8922 or 8960 WIRELESS COMMUNICATIONS TEST SET ...

Page 10: ...Exploded Views and Parts List 1 7 1 8 EAR Microphone EAR MICROPHONE GH59 00168A 1 9 Data Kit DATA KIT GH39 00078A 1 10 Battery Charger BATTERY CHAGER GH44 00221B ...

Page 11: ...PCB Diagrams 2 1 2 PCB Diagrams 2 1 Main Top ...

Page 12: ...PCB Diagrams 2 2 2 2 Main Bottom ...

Page 13: ... 0 7W SC 74 SI3865DV 19 0505 001423 Q102 FET SILICON FDG6323L N P 0 3W SC70 6 FDG6323L 20 0505 001423 Q402 FET SILICON FDG6323L N P 0 3W SC70 6 FDG6323L 21 0506 001004 U309 TR ARRAY UMC5N NPN PNP 2 50V 100mA 3 UMC5NTR 22 0601 001542 LED3 LED CHIP BLUE 1 2X0 8MM 480NM E1S03 AB1A7 23 0601 001542 LED4 LED CHIP BLUE 1 2X0 8MM 480NM E1S03 AB1A7 24 0601 001542 LED5 LED CHIP BLUE 1 2X0 8MM 480NM E1S03 AB...

Page 14: ...139 R203 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 59 2007 000139 R204 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 60 2007 000139 R444 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 61 2007 000139 R447 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 62 2007 000140 R106 R CHIP 1Kohm 5 1 16W DA TP 1005 RK73K1ETP102J 63 2007 000140 R107 R CHIP 1Kohm 5 1 16W DA TP 1005 RK73K1ETP102J 64 2007 000...

Page 15: ...007 000159 R656 R CHIP 56Kohm 5 1 16W DA TP 1005 RK73K1ETP563J 101 2007 000162 R316 R CHIP 100Kohm 5 1 16W DA TP 1005 RK73K1ETP104J 102 2007 000162 R402 R CHIP 100Kohm 5 1 16W DA TP 1005 RK73K1ETP104J 103 2007 000162 R432 R CHIP 100Kohm 5 1 16W DA TP 1005 RK73K1ETP104J 104 2007 000162 R437 R CHIP 100Kohm 5 1 16W DA TP 1005 RK73K1ETP104J 105 2007 000162 R460 R CHIP 100Kohm 5 1 16W DA TP 1005 RK73K1...

Page 16: ...2007 007317 R594 R CHIP 2 2Kohm 1 1 16W DA TP 1005 RK73H1ETP2201F 143 2007 007318 R456 R CHIP 1Kohm 1 1 16W DA TP 1005 RK73H1ETP1001F 144 2007 007318 R457 R CHIP 1Kohm 1 1 16W DA TP 1005 RK73H1ETP1001F 145 2007 007318 R458 R CHIP 1Kohm 1 1 16W DA TP 1005 RK73H1ETP1001F 146 2007 007318 R459 R CHIP 1Kohm 1 1 16W DA TP 1005 RK73H1ETP1001F 147 2007 007590 R659 R CHIP 82Kohm 1 1 16W DA TP 1005 RK73H1ET...

Page 17: ... 2203 000254 C587 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 CL05B103KONC 185 2203 000254 C712 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 CL05B103KONC 186 2203 000254 C725 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 CL05B103KONC 187 2203 000254 C726 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 CL05B103KONC 188 2203 000254 C744 C CERAMIC CHIP 10nF 10 16V X7R TP 1005 CL05B103KONC 189 2203 000254 C745 C CERAMIC CHIP 10...

Page 18: ...000812 C217 C CERAMIC CHIP 0 033nF 5 50V NP0 TP 1005 CL05C330JBNC 227 2203 000812 C234 C CERAMIC CHIP 0 033nF 5 50V NP0 TP 1005 CL05C330JBNC 228 2203 000812 C263 C CERAMIC CHIP 0 033nF 5 50V NP0 TP 1005 CL05C330JBNC 229 2203 000812 C264 C CERAMIC CHIP 0 033nF 5 50V NP0 TP 1005 CL05C330JBNC 230 2203 000812 C310 C CERAMIC CHIP 0 033nF 5 50V NP0 TP 1005 CL05C330JBNC 231 2203 000812 C311 C CERAMIC CHI...

Page 19: ... 005061 C409 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 269 2203 005061 C427 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 270 2203 005061 C534 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 271 2203 005061 C588 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 272 2203 005061 C597 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 273 2203 005061 C701 C CERAMIC CHIP 100nF 8...

Page 20: ... TP 2012 ECST0JZ106R 310 2404 001105 C328 C TA CHIP 10UF 20 6 3V GP TP 2012 ECST0JZ106R 311 2404 001105 C535 C TA CHIP 10UF 20 6 3V GP TP 2012 ECST0JZ106R 312 2404 001105 C708 C TA CHIP 10UF 20 6 3V GP TP 2012 ECST0JZ106R 313 2404 001105 C750 C TA CHIP 10UF 20 6 3V GP TP 2012 ECST0JZ106R 314 2404 001134 C436 C TA CHIP 100UF 20 6 3V LZ TP 4028 595D107X06R3B2T 315 2404 001134 C579 C TA CHIP 100UF 20...

Page 21: ...4 001302 F200 FILTER SAW 225MHZ 0 16MHZ 0 7MS TP B4846 342 2909 001146 U203 FILTER DUPLEXER 942 5MHZ 897 5MHZ LMG002S 5008C 343 3705 001226 CN1 CONNECTOR COAXIAL JACK 75mohm 50ohm MHC 188 344 3709 001088 J402 CONNECTOR CARD EDGE 6P 2 54mm 2 338063 2 345 3710 001105 M1 CONNECTOR SOCKET 24 8005 002 100 867 346 3710 001595 J403 IF CONNECTOR 18P 1R 0 5mm 1004 0018 304 347 3722 001587 U400 JACK PHONE 6...

Page 22: ...ohm 5 1 16W DA TP 1005 RK73K1ETP221J 21 2007 000139 R573 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 22 2007 000139 R572 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 23 2007 000139 R574 R CHIP 220ohm 5 1 16W DA TP 1005 RK73K1ETP221J 24 2007 000143 R305 R CHIP 4 7Kohm 5 1 16W DA TP 1005 RK73K1ETP472J 25 2007 000148 R238 R CHIP 10Kohm 5 1 16W DA TP 1005 RK73K1ETP103J 26 2007 000148 R240 R CHIP ...

Page 23: ...C1005Y5V1C104ZT 54 2203 005061 C418 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 55 2203 005061 C419 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 56 2203 005061 C420 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 57 2203 005061 C421 C CERAMIC CHIP 100nF 80 20 16V 1005 C1005Y5V1C104ZT 58 2203 005065 C411 C CERAMIC CHIP 1000nF 80 20 10V 1608 GRM39Y5V105Z10PT 59 2203 005065 C412 C ...

Page 24: ...ture 3VTX XVCC RTC_3V3 Serial Data Interface I O Interface A D Interface AGC AFC PLL LOAD SWITCH Charging Circuit Li Ion Battery Standard ONE C VIBRATOR SYSTEM CLOCK 13MHz SRAM FLASH1 FLASH2 EEPROM RTC_CLOCK 32 768KHz KEYPAD SIM CARD SPEAKER MIC LCD BB INTERFACE RF INTERFACE ALERT_VCC AVCC VCC 3VRF ...

Page 25: ...80 MHz DCS 270 MHz EGSM 540 MHz I Q Mod 45 MHz 270 MHz EGSM 270 MHz DCS 135 MHz Phase Detector TX VCO U200 EGSM 880 915 MHz CH62 902 4 MHz DCS 1710 1785 MHz CH698 1747 4 MHz F204 HD155128TF U454 F200 C212 L200 VP40575 U618 1st Dual SAW Filter F203 LNA Serial data Interface Loop Filter Dual Coupler U318 Dual PAM U476 VCTCXO 13MHz U100 PLL1 PLL2 SI4133 XM2 U478 RF VCO IF VCO 1 2 1 2 90 deg Shift 1 2...

Page 26: ...IF VCO 1080MHz PLL1 PLL2 RF VCO AFCDAC 10 23 15 880 915MHz EGSM 890 915MHz PGSM 1710 1785MHz DCS HD155128TF U454 Antenna S W U203 VP405575 U618 TXEN1 RAMPDAC BAND Selection GSM Low DCS High ITXP ITXN QTXP QTXN Loop Filter TX VCO U200 Dual PAM U476 TXEN1 BAND Selection RAMPDAC 17 18 19 20 38 35 30 47 23 11 15 3 7 10 6 8 1 5 4 1 7 2 5 3 1080 MHz 3VTX TXEN2 4 9 5 8 VC1 VC2 2 11 8 RF Conector CN1 10 1...

Page 27: ...7 5 53 54 2 3 49 50 1 2 5 6 40 41 27 SDATA SCLK SYNEN1 EGSM 1150 1185 MHz DCS 1580 1655 MHz 26 25 24 32 33 44 43 4 3 6 10 10 23 2nd Dual SAW Filter F204 RF Conector CN1 1080 MHz VCTCXO 13MHz U100 PLL1 PLL2 SI4133 XM2 U478 RF VCO IF VCO 2 3 Antenna S W U203 DCS Path EGSM Path 50dBm 947 067 MHz 50dBm 1842 467 MHz 51dBm 32dBm 34dBm 38dBm 52dBm 43dBm 6dBm 1172 MHz 9dBm 1617 4 MHz 5dBm 540 MHz 25dBm G ...

Page 28: ...n 3 2V No Yes Yes Replace Keypad When the END key is pressed the voltage of D304 pin1 3 6V No Yes U474 pin 2 3 3 2V Check the circuit related to U474 No END U619 pin 3 3 0 V Check the circuit related to U619 No Yes Check the initial operation U620 pin3 3 0 V Check U620 and related circuit No Yes Check for the clock signal at R107 Check the clock generation circuit related to U100 and Q100 No Yes Y...

Page 29: ...OFF 3 1 VIN VOUT 5 C751 H400 100PF C305 100K R583 C748 1UF C328 10UF 6 3V RB414 ALERT_VCC BAT1 R2 4 S2 10NF C587 SI3865DV U474 2 D2 3 D2 5 ON OFF R1 C1 6 1 VCC AVCC H401 1 5 VOUT 10NF C319 U619 LP2981AIM5X 3 0 GND 2 4 NC ON OFF 3 VIN 10UF 6 3V C750 GND 4 NC ON OFF 3 VIN 1 5 VOUT H402 LP2981AIM5X 3 3 U470 2 C436 100UF 10UF 6 3V C306 10NF C326 C555 27PF C307 C536 10NF 10NF 1K R584 1UF C749 1UF 1K R7...

Page 30: ...Downloading SW is OK Is CSROM signal OK The node between R661 and C712 H RST No Check the circuit related to reset R348 H BOOT No Resolder R348 Yes R440 H MSIZE No Resolder R440 Yes R438 L EXTPROC No Resolder R438 Yes Replace PBA Check all the other connection by Test S W Check the circuit around LCD Check the circuit around U617 EEPROM and data stored in it Yes ...

Page 31: ...Flow Chart of Troubleshooting and Circuit Diagrams 5 4 U618 U475 U466 VCC VCC R661 C712 R348 R440 R552 VCC SIM_5V3V SIMPWDN_BOOT F_WP F_WP F_VCCW SYSRST GPIO3 MSIZE GPO2 Q403 R551 CSRAM _CE ...

Page 32: ... 5 5 3 Charging Part Abnormal charging part Replace TA Check the J403 pin 17 18 4 9 V No Yes Yes Check the U614 pin 3 4 9 V Resolder C710 Yes No R594 CHG_ON side L Resolder R594 Yes No Resolder components around U614 Check the U614 pin 5 4 2V END Yes No ...

Page 33: ...cuit Diagrams 5 6 4 L ON H OFF ZXT13P20DE6 Q405 3 1 2 5 6 100NF 100K 1 R658 C711 R659 82K 1 6 3V 10UF C708 10V 10UF C710 VSENSE 5 R594 2 7K 1 6 DRIVE 2 GND ISENSE 1 4 PROG VCC 3 DCVOLT CHG_ON VBATT I_CHARGE BAT_VOLT LTC1734ES6 4 2 TR U614 ...

Page 34: ...l EEPROM and data stored in it Yes Phone can t access SIM card Yes Q402 pin 2 3 3 0 V Replace Q402 or Resolder C434 Yes No After Power ON Check SIMCLK Signal on J402 pin 3 in a few second After SIM card insert J402 pin 2 H SIMRST Resoldering C718 or Replace PBA Resoldering C764 or Replace PBA Yes No No Q402 pin4 3 0 V Yes No Check the circuit around U620 ...

Page 35: ...SIM CONNECTOR GND CLK RST VCCSIM SIMDATA VPP SIMCLK SIMDATA SIMRST 10NF J402 6 6 J402 3 3 C434 SIMVCC SI1865DL Q402 D2 2 D2 3 ON OFF 5 6 R1 C1 1 R2 S2 4 SIMPWREN 10K R430 100PF C718 BLM10A121S L605 C719 C431 1UF J402 1 1 J402 2 2 VCC C764 100PF J402 4 4 J402 5 5 ...

Page 36: ...e does not work Resolder U400 U400 pin 4 5 short U619 pin 5 AVCC 3 0V Check the circuit from U618 to MIC1 Check the circuit related to U619 END Resolder the R444 R445 R446 R447 C446 C450 C451 Yes No Yes Yes Yes No No Check the tension of MIC Module Replace the Mic or Mic Holder No Yes ...

Page 37: ...Flow Chart of Troubleshooting and Circuit Diagrams 5 10 U400 MIC1 U618 PWI1P PWI1N MIC MIC 1 5 4 MIC MIC RC FILTER ...

Page 38: ...grams 5 11 5 6 Speaker Part Speaker does not work Yes U400 pin 2 3 short Resoler U400 U400 pin 2 3 6 1 25 V No No Replace the PBA Yes Yes Modify the SPK pins Check the tension of the Speaker Is Speaker working Replace the Speaker END No Yes Yes No ...

Page 39: ...5 12 Flow Chart of Troubleshooting and Circuit Diagrams U400 SPK300 U618 PWO1P PWO1N SPK SPK 6 2 3 SPK SPK ...

Page 40: ...hart of Troubleshooting and Circuit Diagrams 5 7 Key Data Input Check Initial operation Check the Dome sheet When one of the keys is pushed is it displayed on LCD Keypad is OK END Replace the PBA Yes No Yes Yes No ...

Page 41: ... ALERT by Test S W Is there alert wave form on the R305 during alert tone test Is there alert wave form on the Q300 pin 3 during alert tone test U470 pin 5 3 3V Check the circuit related to Q300 END Check the circuit related to U470 Yes No Yes Yes No No Buzzer is ok Change the Buzzer Yes No ...

Page 42: ...5 15 Flow Chart of Troubleshooting and Circuit Diagrams From U470 pin 5 BUZ300 BDT 03S 1 1 2 2 BUZ BUZ From U618 Q300 2SD2114KT146V 1 3 2 C308 100NF 100K R304 DAN222TL D302 3 1 2 RTC_3V3 ALERT 4 7K R305 ...

Page 43: ...r LED does not work Check the circuit related to U621 U621 pin 5 3 0V Is Green color of 3 LEDs correctly work Is Red color LED of 3 LEDs correctly work Check Q408 R727 LED1 END Check Q407 R726 LED1 Yes No Yes Yes No No Is Blue color LED of 3 LEDs correctly work No Check Q406 R728 LED2 Yes ...

Page 44: ...Chart of Troubleshooting and Circuit Diagrams 5 17 390 2 3 1 2 3 1 LED1 CL 165HR YG D R728 56 GREEN_RI BLUE_RI ALERT_VCC RED_RI LED2 SLS NNBL102TS DTC114YE Q408 2 3 1 Q407 DTC114YE R727 75 DTC114YE Q406 R726 ...

Page 45: ...e Backlight ON mode in the menu R575 H GPO1 by test S W No Yes Yes No Resolder R575 R579 or replace U625 U625 pin 3 L LCD backlight on Replace LCD No Yes No LCD BACKLIGHT KEY PCB LED Resolder R575 R579 or Resolder U625 U625 pin 3 L No Yes Yes END Key PCB LED on Resolder R572 R574 R725 R745 R746 R747 R748 U624 or Replace PBA No ...

Page 46: ...Flow Chart of Troubleshooting and Circuit Diagrams 5 19 U625 U618 R575 R579 KeyPAD LED 4 CON1 LCD LED 17 GPO1 ...

Page 47: ...Resolder CN1 Resolder U203 Pin 10 65 dBm Check VC1 L VC2 L Resolder F203 Resolder C234 L209 C596 L218 C582 C758 R220 Resolder F204 U626 L204 C600 Check C481 CH 225MHz 20 dBm C137 1080MHz 20 dBm Resolder U478 Resolder F200 C698 C699 C494 C215 C213 L201 R223 L212 L213 C242 U454 Pin 24 25 26 27 40 mV Resolder OneC U618 U454 Check U454 Pin 32 33 2 5 V Pin 35 0 5 V Resolder U454 Pin 32 33 35 Resolder U...

Page 48: ...Resolder U318 C264 Resolder C204 R210 R211 R203 Resolder U478 U454 pin 30 47 10 dBm Check 454 Pin 38 2 5 V Pin 35 0 5 V Resolder U454 Pin35 Pin38 Check U618 Resolder U618 No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U476 VBATT Pin 2 APC OK Resolder or Change U476 Yes Check VBATT or APC Control No U454 Pin 17 18 19 20 40 mV Resolder OneC U618 Ch...

Page 49: ... dBm Resolder CN1 Resolder U203 Pin 1 65 dBm Check VC1 L VC2 L Resolder F203 Resolder F204 C721 L595 Check C481 CH 225MHz 20 dBm C137 1080MHz 20 dBm Resolder U478 U454 Pin 24 25 26 27 40 mV Resolder OneC U618 U454 Check U454 Pin 32 33 2 5 V Pin 35 2 5 V Resolder U454 Pin 32 33 35 Resolder U618 No No No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Resolder C248 L594 C214 L406 C2...

Page 50: ...03 Resolder U318 C263 Resolder C217 R218 R217 R204 U454 Pin 17 18 19 20 40 mV Resolder OneC U618 Check U454 Pin 38 Pin 35 2 5 V Resolder U454 Pin35 Pin38 Check U618 Resolder U618 No No No No No No No No Yes Yes Yes Yes Yes Yes Yes Yes Check Ant S W Control Circuit Check U476 VBATT Pin 2 APC OK Resolder or Change U476 Yes Check VBATT or APC Control No Yes Resolder U478 U454 pin 30 47 10 dBm No No C...

Page 51: ... VDDR 11 XIN 15 20 IFOUT 23 PWDNB 13 6 RFLA RFLB 5 RFLC 3 2 RFLD 10 RFOUT 21 4 GNDR GNDR1 9 7 GNDR2 28 GNDR3 GNDR4 1 8 GNDR5 19 IFLA IFLB 29 30 GND5 GND6 31 GND7 32 GNDD 18 16 GNDD1 14 GNDD2 22 GNDI GNDI1 1 VCC 4 U478 SI4133G XM2R 12 AUXOUT GND4 U100 TCO 9133S 13MHz 2 GND 3 OUT VC 91K 2 2nH L402 27K R104 R105 C123 10NF R103 2 2K 560 R117 10K R101 R582 10K R106 1K L404 10nH 3VRF C769 NC XVCC AFC CL...

Page 52: ...NF C562 R204 220 C261 33PF C758 1NF U627 NC C240 1NF 1NF C556 L201 68nH C755 7PF L211 15nH C242 0 5PF VCCRELO 48 VCOIN 11 R218 270 TESTOUT 37 VCCCOMP 14 VCCCTRL 42 VCCIF 45 VCCIFLO 29 VCCIQ 22 51 VCCMIX VCCPLL LNA 12 32 POONTX 38 QIN 18 QINB 17 QOUT 25 QOUTB 24 RESET 21 RFLOIN 47 SDATA 1 49 MIX1OUTB 50 MIX2OUT 44 MIX2OUTB 43 NC 36 34 NC PLLOUT 15 33 POONRX1 POONRX2 19 IOUT 27 IOUTB 26 LE 55 3 MIX1...

Page 53: ...269 100PF C586 27PF C249 C144 220UF 12 G GSM_RX 10 GSM_TX 5 VC1 2 11 VC2 C145 10UF 6 3V U203 ES A5010B 8 ANT 1 DCS_RX 3 DCS_TX 4 G G 6 G 7 G 9 10K 1 R617 3 9nH L596 C658 1NF C720 100PF 270 33PF C264 B1 5 B2 C1 6 3 C2 1 E1 4 E2 R667 U492 RN4985 TE85L 2 R626 22K 1 C538 4PF DTC114YE U209 2 3 1 2 B2 5 6 C1 C2 3 E1 1 E2 4 RN4985 TE85L U493 B1 POUTGSM VAPC 2 7 VCTL VDD1 3 6 VDD2 C143 33PF G4 G5 13 14 G6...

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