Samsung SGH-N300 service manual - narod.ru

ELECTRONICS

SERVICE

DUAL BAND MobileCellular Phone SGH-N300

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

Samsung Electronics Co.,Ltd. Printed in Korea06/2001 Rev 1.0

GH68-02097A

ELECTRONICS

1. Exploded Views and Parts List1-1 Main1-2 Main Parts List1-3 Travel Adapter1-4 Travel Adapter Parts List1-5 Ciger Light Adapter1-6 Ciger Light Adapter Parts List1-7 Test Jig1-8 Earphone1-9 Data Kit1-10 Desk Top Charger

2. PCB Diagrams2-1 Main Top2-2 Main Bottom

3. Electrical Parts List3-1 Main Parts List Top3-2 Main Parts List Bottom

4. Block Diagrams4-1 Main Base Band4-2 Main RF

5. Flow Chart of Troubleshooting5-1 Power ON5-2 Initial5-3 Charging Part5-4 Sim Part5-5 Microphone Part5-6 Speaker Part5-7 Key Data Input5-8 Alert tone5-9 Ring Indicator5-10 Back Light5-11 GSM Receiver5-12 GSM Transmitter5-13 DCS Receiver5-14 DCS Transmitter

1-1 Exploded Views and Parts List

1. Exploded Views and Parts List

1-1 Main

1

5

2

11

9

10

12

14

16

13

15

17

1819

20

22

23

24

21

4

1-2

1-3

1-4

1-11-6

2-2

3-2

3-3

3-1

3-4 3-5

1-81-7

1-5

2-1

3

6

7

8

NO SEC CODE DESCRIPTION COLOR SVC Q`TY REMARKS

1-2 Main Parts List

Exploded Views and Parts List 1-2

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

GH75-00757B FRONT-COVER ASSY SILVER 1

1-1 GH72-02228B FRONT-COVER SNA 1

1-2 GH75-00760B FLIP-COVER ASSY 1

1-3 GH72-02229B DUMMY-FRONT SNA 1

1-4 GH72-01851A REFLECTOR-LED SNA 1

1-5 GH74-01369A SPONGE-SPEAKER SNA 1

1-6 GH72-01203B WEB-KEY SNA 1

1-7 GH75-00350A HINGE-ASSY SNA 1

1-8 GH72-01852A WINDOW-LCD SNA 1

GH07-00070A LCD-ASSY 1

2-1 3003-001025 MIC 1

2-2 GH72-01856A SHIELD-FRONT SNA 1

GH75-00762A REAR-COVER ASSY D/GRAY 1

3-1 GH72-01855A REAR-COVER SNA 1

3-2 GH74-00466A TAPE-MOTOR SNA 1

3-3 GH73-00511A COVER-EARPHONE SNA 1

3-4 GH72-02364A SIM-COVER 1

3-5 GH72-01205A LOCKER-MAIN SNA 1

GH75-01076A VOLUME-KEY ASSY 1

GH71-10639A STRIP-FINGER 4

GH72-02230A KEY-PAD 1

GH73-00628A HOLDER-MIC 1

GH74-01329A SPONGE-STIFFER 1

GH74-01328A SPONGE-SPEAKER 1

3001-001192 SPEAKER 1

GH73-00348B HOLDER-BUZZER 1

6001-001285 SCREW M1.4*3 3

GH92-00981A PBA 1

GH73-00350A RUBBER-CONNECTOR 1

GH72-01858A SHIELD-R/F 1

GH31-00019A VIBRATION 1

GH71-00483A BRACKET-ANT 1

GH73-00079A CAP-MOBILE 1

GH42-00102A ANTENNA 1

6001-001345 SCREW M1.7*6 1

GH75-00540C LOGO-BADGE 1

6001-001148 SCREW M2*5 4

GH68-01777A LABEL-MAIN 1

GH43-00291A BATTERY-STD 1

Exploded Views and Parts List

1-3 Travel Adapter

1-4 Travel Adapter Parts List

TYPE SEC CODE REMARKA GH44-00119C CHINA

B GH44-00119A EUROPE

C GH44-00119B UNITED KINGDOM

D Gh44-00119D AUSTRALIA

1-3

Exploded Views and Parts List

1-5 Ciger Light Adapter

1-4

1-6 Ciger Light Adapter Parts List

DESCRIPTION SEC CODE REMARKCiger Light Adapter GH44-00040A BLACK


TEST JIG GH80-10508A

TEST JIG CABLE GH39-00081A

RF JIG CABLE GH39-00002A

1-7 Test Jig


DCPOWERSUPPLY

232 CABLETEST JIG CABLE

RF JIG CABLE

8922 or 8960WIRELESS COMMUNICATION

TEST SET

Note PC

1-7-1 Test Jig


1-8 Earphone

EARPHONE GH59-00225A

1-9 Data Kit

DATA KIT GH39-30533A


1-10 Desk Top Charger

DESK TOP CHARGER GH44-00206A

2-1PCB Diagrams & Schematic Diagrams

2. PCB Diagrams

2-1 Main Top

2-2PCB Diagrams & Schematic Diagrams

2-2 Main Bottom

3-1 Electrical Parts List

3. Electrical Parts List

3-1 Main Parts List Top

1 AU101 3002-001110 ÒBUZZER-MAGNETIC;92dB,3.6V,90mA,2630Hz,TPÓ SMT-9403ECF

2 BAT101 4302-001119 ÒBATTERY-LI(2ND);3V,0.1MAH,-,-,3.1V,-Ó RB4141106N

3 C101 2404-001105 ÒC-TA,CHIP;10UF,20%,6.3V,GP,TP,2012Ó TAJB106M006R

4 C102 2203-005061 ÒC-CERAMIC,CHIP;100nF,+80-20%,16V,Y5V,TP,1005Ó GRM36V5V104Z16PT




8 C107 2203-000254 ÒC-CERAMIC,CHIP;10nF,10%,16V,X7R,TP,1005,-Ó GRM36X7R103K16PT

9 C109 2203-000278 ÒC-CERAMIC,CHIP;0.01nF,0.5pF,50V,NP0,TP,1005Ó GRM36COG100D50PT



12 C116 2203-000812 ÒC-CERAMIC,CHIP;0.033nF,5%,50V,NP0,TP,1005Ó GRM36COG330J50PT





17 C122 2203-005444 ÒC-CERAMIC,CHIP;0.003nF,0.1pF,50V,NP0,TP,1005Ó GRM36COG030B50PT














31 C155 2203-003054 ÒC-CERAMIC,CHIP;0.009nF,0.25pF,50V,NP0,TP,1005Ó GRM36COG090C50PT








REFERENCE SEC CODE PART DESCRIPTION VENDOR PART NUMBER

3-2Electrical Parts List























60 C204 2404-001162 ÒC-TA,CHIP;47uF,20%,4V,LZ,TP,3216Ó F950G476MAAJZTQ2




64 C301 2203-002525 ÒC-CERAMIC,CHIP;0.56nF,10%,50V,X7R,TP,1005Ó GRM36X7R561K50PT





69 C315 2203-002525 ÒC-CERAMIC,CHIP;0.56nF,10%,50V,X7R,TP,1005Ó GRM36X7R561K50PT


71 C323 2203-001221 ÒC-CERAMIC,CHIP;820pF,10%,50V,X7R,TP,1005,-Ó GRM36X7R821K50PT



74 C335 2203-005450 ÒC-CERAMIC,CHIP;0.0056nF,0.1pF,50V,NP0,TP,1005Ó GRM36COG5R6B50PT










82 C352 2203-005138 ÒC-CERAMIC,CHIP;1.8nF,10%,50V,X7R,TP,1005,-Ó GRM36X7R182K50PT

83 C357 2203-001221 ÒC-CERAMIC,CHIP;820pF,10%,50V,X7R,TP,1005,-Ó GRM36X7R821K50PT












95 C406 2203-000585 ÒC-CERAMIC,CHIP;220pF,10%,50V,X7R,TP,1005,-Ó CL05B221KBNC


97 D102 0407-001002 ÒDIODE-ARRAY;DAN222,80V,300mA,CA2-3,EM3,TPÓ DAN222


99 D110 0401-001033 ÒDIODE-SWITCHING;MCL4154,25V,200mA,M-MELF,TPÓ MCL4154

100 D301 0404-001054 ÒDIODE-SCHOTTKY;HSMS-2805,70V,15mA,SOT-143,TPÓ HSMS-2805-L31

101 F102 2901-001116 ÒFILTER-EMI SMD;50V,0.3A,-,470pF,2x1.25x0.5mm,TPÓ NFM39R12C471T1


103 F302 2904-001228 ÒFILTER-SAW;1.8425GHz,-,1805-1880MHz/1dB,TP,1805-18Ó B4133

104 F303 2904-001226 ÒFILTER-SAW;942.5MHz,35MHz,925-960MHz/2dB,TP,925-96Ó B4121

105 F305 2904-001272 ÒFILTER-SAW;1.8425GHz,75MHz,+-37.5MHz/2.2dB,TP,+-37Ó B4144

106 L101 2703-001752 ÒINDUCTOR-SMD;39nH,5%,1.0x0.5x0.5mmÓ LL1005-FH39NJ

107 L301 2703-001750 ÒINDUCTOR-SMD;2.2NH,0.3NH,1.0X0.5X0.5MMÓ LL1005-FH2N2S

108 L304 2703-001786 ÒINDUCTOR-SMD;10NH,5%,1.0X0.5X0.5MMÓ LL1005-FH10NJ

109 L316 2703-001748 ÒINDUCTOR-SMD;5.6nH,0.3nH,1.0x0.5x0.5mmÓ LL1005-FH5N6S

110 L318 2703-001734 ÒINDUCTOR-SMD;6.8nH,5%,1x0.5x0.5mmÓ LL1005-FH6N8J



113 LED1 0601-001402 ÒLED;CHIP,RED/Y-GRN,1.2x1.5mm,660/570nmÓ CL-165HR/YG-D

114 LED2 0601-001540 ÒLED;CHIP,BLUE,1.1X0.8MM,485NMÓ SLS-NNBD102TS

115 OSC101 2801-003856 ÒCRYSTAL-SMD;0.032786MHz,20ppm,28-ACP,7pF,65kohm,TPÓ C-146(32.768KHZ)

116 OSC301 2806-001238 ÒOSCILLATOR-VCO;1710~1785/880~915MHz,-,10.5dBm,TP,2Ó QVC961747RT-4051

117 Q101 0504-001012 ÒTR-DIGITAL;DTC114YE,NPN,150MW,10K/47K,EMT3,TPÓ DTC114YE

118 Q102 0501-002011 ÒTR-SMALL SIGNAL;2SD2114K,NPN,200mW,SOT-23,TP,8Ó 2SD2114KT146V

119 Q103 0501-000162 ÒTR-SMALL SIGNAL;2SA1576,PNP,200MW,SOT-323,TP,180-3Ó 2SA1576FRT106


121 Q108 0501-000162 ÒTR-SMALL SIGNAL;2SA1576,PNP,200MW,SOT-323,TP,180-3Ó 2SA1576FRT106




123 Q113 0504-000167 ÒTR-DIGITAL;RN1102,NPN,100MW,10K/10K,SSM,TPÓ DTC114EE/TR


125 R101 2007-000140 ÒR-CHIP;1Kohm,5%,1/16W,DA,TP,1005Ó ERJ2GEJ102X

126 R102 2007-000174 ÒR-CHIP;47ohm,5%,1/16W,DA,TP,1005Ó ERJ2GEJ470X

127 R103 2007-000148 ÒR-CHIP;10Kohm,5%,1/16W,DA,TP,1005Ó RC1005J103CS



130 R108 2007-000143 ÒR-CHIP;4.7Kohm,5%,1/16W,DA,TP,1005Ó RC1005J472CS




134 R112 2007-001290 ÒR-CHIP;24ohm,5%,1/16W,DA,TP,1005Ó ERJ2GE240X




138 R120 2007-007317 ÒR-CHIP;2.2Kohm,1%,1/16W,DA,TP,1005Ó RK73HIETD2201F

139 R121 2007-000141 ÒR-CHIP;2.2Kohm,5%,1/16W,DA,TP,1005Ó ERJ2GEJ222X





144 R130 2007-007318 ÒR-CHIP;1Kohm,1%,1/16W,DA,TP,1005Ó RK73HIETD1001F

145 R132 2007-007771 ÒR-CHIP;0OHM,5%,1/16W,DA,TP,1005Ó ERJ2GEJ0R0E












157 R152 2007-007981 ÒR-CHIP;180Kohm,1%,1/16W,DA,TP,1005Ó ERJ2GRKF1803X























178 R184 2007-000170 ÒR-CHIP;1Mohm,5%,1/16W,DA,TP,1005Ó ERJ2GEJ105X

















195 R334 2007-000172 ÒR-CHIP;10ohm,5%,1/16W,DA,TP,1005Ó RC1005J100CS

196 R335 2007-002965 ÒR-CHIP;15OHM,5%,1/16W,DA,TP,1005Ó ERJ2GEJ150X



















213 RA101 2011-001344 ÒR-NETWORK;100ohm,5%,1/16W,L,CHIP,8P,TPÓ EXB28V101JX

214 RA102 2011-001344 ÒR-NETWORK;100ohm,5%,1/16W,L,CHIP,8P,TPÓ EXB28V101JX

215 RA103 2011-001345 ÒR-NETWORK;10Kohm,5%,1/16W,L,CHIP,8P,TPÓ EXB28V103JX

216 TH101 1404-001005 ÒTHERMISTOR-NTC;47Kohm,5%,4050K,2.0mW/C,TPÓ NTH5G40B473J01TE

217 U101 0505-001423 ÒFET-SILICON;FDG6323L,N/P,-,-,-,0.3W,SC70-6Ó FDG6323L

218 U103 0801-002540 ÒIC-CMOS LOGIC;7SZ19,DECODER,SOP,6P,49MIL,SINGLE,TPÓ NC7SZ19P6X

219 U107 1103-001184 ÒIC-EEPROM;24C256,32Kx8Bit,dBGA,8P,92MIL,-,2.7V,-,PÓ AT24C256-10UI-2.7-T.R

220 U108 1205-001881 ÒIC-COMM. CONTROLLER;VP40575,BGA,180P,472MIL,PLASTIÓ VP40575

221 U109 1106-001301 ÒIC-SRAM;1337,262Kx16Bit,CSP,72P,-,85nS,3V,-,PLASTIÓ LRS1337

222 U112 1203-001511 ÒIC-RESET;809,SOT-23,3P,-,PLASTIC,0.3/6.Ó MAX809REUR-T

223 U113 1001-001145 ÒIC-ANALOG SWITCH;MAX4599EXT,-,SC70,6P,49MIL,SINGLEÓ MAX4599EXT-T

224 U114 0505-001332 ÒFET-SILICON;FDG6301,N,25V,0.22A,4OHM,.3W,SC70-6Ó FDG6301N

225 U115 1001-001145 ÒIC-ANALOG SWITCH;MAX4599EXT,-,SC70,6P,49MIL,SINGLEÓ MAX4599EXT-T

226 U116 1203-002077 ÒIC-VOLTAGE REGULATOR;2985,SOT-23,5P,63MIL,PLASTIC,Ó LP2985AIM5-3.3

227 U118 1202-001022 ÒIC-VOLTAGE COMP.;75W56,SSOP,8P,110MIL,DUAL,7V,CÓ TC75W56FU-TE12L

228 U124 0504-001058 ÒTR-DIGITAL;RN4985,NPN/PNP,200mW,2.2Kohm/47Kohm,UMDÓ RN4985

229 U302 1209-001337 ÒIC-PLL/SYNTHESISER;SI4133G-XM2R,LCC,28P,-,-,3.6V,-Ó SI4133-MLP28

230 U306 1201-001018 ÒIC-OP AMP;7131,SOT-23,5P,-,SINGLE,70dB,PÓ LM7131ACM5




234 V102 1405-001019 ÒVARISTOR;5.6V,-,1.6x0.8mm,TPÓ VC060305A150R


236 V106 1405-001018 ÒVARISTOR;14V,-,1.6x0.8mm,TPÓ VC060314A300R

237 ZD109 1405-001082 ÒVARISTOR;5.6V,20A,1x0.5x0.6mm,TPÓ VC040205X150R






1 C105 2404-000335 ÒC-TA,CHIP;3.3uF,20%,16V,GP,TP,3216Ó 293D335X0016A2T








9 C125 2203-005509 ÒC-CERAMIC,CHIP;330nF,+80-20%,10V,Y5V,TP,1005Ó GRM36Y5V334Z10PT

10 C128 2203-005382 ÒC-CERAMIC,CHIP;0.006nF,0.1pF,50V,NP0,TP,1005Ó GRP1555C1H6R

























35 C209 2404-001134 ÒC-TA,CHIP;100UF,20%,6.3V,LZ,TP,4028Ó 595D107X06R3B2T


37 C212 2203-001210 ÒC-CERAMIC,CHIP;8.2nF,10%,16V,X7R,TP,1005,-Ó GRP155R71822K



40 C217 2404-000335 ÒC-TA,CHIP;3.3uF,20%,16V,GP,TP,3216Ó 293D335X0016A2T


3-2 Main Parts List Bottom

Electrical Parts List 3-8






46 C305 2203-001033 ÒC-CERAMIC,CHIP;5.6nF,10%,25V,X7R,TP,1005,-Ó GRM36X7R562K25PT




50 C312 2203-005050 ÒC-CERAMIC,CHIP;0.0018nF,0.25pF,50V,NP0,TP,1005Ó GRM36COG1R8C50PT



53 C318 2203-005443 ÒC-CERAMIC,CHIP;0.0033nF,0.1pF,50V,NP0,TP,1005Ó GRM36COG3R3B50PT














67 C341 2203-005383 ÒC-CERAMIC,CHIP;7pF,0.1pF,50V,NPO,TP,1005,-Ó GRM36COG070B50PT


69 C350 2203-005383 ÒC-CERAMIC,CHIP;7pF,0.1pF,50V,NPO,TP,1005,-Ó GRM36COG070B50PT





74 C359 2301-001419 ÒC-FILM,CHIP;8.2nF,5%,16V,TP,2012,-Ó ECH-U1C822JX5





79 C365 2301-001232 ÒC-FILM,CHIP;470pF,5%,50V,TP,2012,-Ó ECHU1C471JB5













90 C381 2404-001134 ÒC-TA,CHIP;100UF,20%,6.3V,LZ,TP,4028Ó 595D107X06R3B2T






96 C396 2404-001210 ÒC-TA,CHIP;220uF,20%,6.3V,LZ,TP,7132Ó 5920227X06R3U2T









105 CN101 3710-001105 ÒCONNECTOR-SOCKET;2P,1R,1.27mm,SMD-S,AUÓ 24-8005-002-000-867

106 CN102 3709-001121 ÒCONNECTOR-CARD EDGE;6P,2.54MM,SMD-S,AUÓ 1-338063-9

107 CN103 3710-001492 ÒCONNECTOR-SOCKET;40P,2R,0.5MM,SMD-S,AUFÓ AXK5F40335J

108 CN104 3710-001666 ÒCONNECTOR-SOCKET;18P,1R,0.5mm,SMD-A,AUFÓ MQ179C-SAA-18P/4


110 D103 0402-001331 ÒDIODE-RECTIFIER;CRS04,40V,1A,S-FLAT,TPÓ CRS04-TE85L

111 D107 0407-001007 ÒDIODE-ARRAY;UMN1,80V,25mA,CA4-2,UM5,TRÓ UMN1



114 F101 2901-001155 ÒFILTER-EMI SMD;25V,6A,-,220pF,3.2x1.6x1.6mm,TPÓ NFM60R00T221

115 F301 2904-001227 ÒFILTER-SAW;225MHz,0.26MHz,+-67.5KHz/2dB,TP,5.5dB,-Ó B4833

116 F304 2904-001271 ÒFILTER-SAW;942.5MHz,35MHz,+-17.5MHz/1.7dB,TP,+-17.Ó B4127


118 FB101 3301-001208 ÒCORE-FERRITE BEAD;AB,1.6x0.8x0.8mm,-,-Ó BLM11P600SPT

119 FB102 3301-001208 ÒCORE-FERRITE BEAD;AB,1.6x0.8x0.8mm,-,-Ó BLM11P600SPT

120 J101 3722-001380 ÒJACK-PHONE;6P,2.6PI,AG,BLK,-Ó 02-787B2-53BKA

121 J301 3705-001163 ÒCONNECTOR-COAXIAL;SMC,JACK,100mohm,50ohm,0.5dBÓ MHC-173

122 L102 2703-002025 ÒINDUCTOR-SMD;47uH,20%,4.8x4.8x1.8mmÓ BTC-0309-470M

123 L103 2703-002228 ÒINDUCTOR-SMD;1.5MH,30%,3.3X3.3X2.1MMÓ LQH3KSN152N21L

124 L104 2703-001890 ÒINDUCTOR-SMD;10uH,20%,4.4x6.6x2.3mmÓ SPI-103F

125 L302 2703-001673 ÒINDUCTOR-SMD;120nH,5%,1.8x1.12x1.02mmÓ 0603CS-R12XJBC



126 L303 2703-001181 ÒINDUCTOR-SMD;27nH,10%,1x0.5x0.5mmÓ LL1005-FH27NK

127 L305 2703-001545 ÒINDUCTOR-SMD;47nH,5%,1.8x1.12x1.02mmÓ 0603CS-47NXJBC







134 L319 2703-001737 ÒINDUCTOR-SMD;2.7nH,0.3nH,1x0.5x0.5mmÓ HK1005-2N7S-T


136 L323 2703-001727 ÒINDUCTOR-SMD;22nH,5%,1x0.5x0.5mmÓ HK1005-22NJ-T

137 L324 2703-001727 ÒINDUCTOR-SMD;22nH,5%,1x0.5x0.5mmÓ HK1005-22NJ-T




141 Q107 0501-002011 ÒTR-SMALL SIGNAL;2SD2114K,NPN,200mW,SOT-23,TP,8Ó 2SD2114KT146V

142 Q110 0501-000462 ÒTR-SMALL SIGNAL;MMBT2907A,PNP,350mW,SOT-23,TP,100-Ó MMBT2907A


144 Q302 0504-001021 ÒTR-DIGITAL;DTB113ZK,PNP,200MW,10K,SC-59,TPÓ DTB113ZK


146 R117 2007-007142 ÒR-CHIP;10Kohm,1%,1/16W,DA,TP,1005Ó RK73H1ETP1002F

147 R118 2007-007008 ÒR-CHIP;300OHM,5%,1/16W,DA,TP,1005Ó RC1005J301CS
























169 R194 2007-007309 ÒR-CHIP;12Kohm,1%,1/16W,DA,TP,1005Ó RK73H1ETP1202



172 R301 2007-001325 ÒR-CHIP;3.3Kohm,5%,1/16W,DA,TP,1005Ó ERJ2GE332X


174 R304 2007-007021 ÒR-CHIP;75KOHM,5%,1/16W,DA,TP,1005Ó RC1005J753CS




























202 U105 1203-002101 ÒIC-BATTERY;1410,SOP,16P,150MIL,PLASTIC,-,-,0to+70CÓ IC;SC1410

203 U110 1203-001454 ÒIC-VOLTAGE REGULATOR;2981,SOT-23,5P,59MIL,PLASTIC,Ó LP2981AIM5X-3.0

204 U111 0506-001004 ÒTR-ARRAY;UMC5N,NPN/PNP,2,50V,-,-100mA,3Ó UMC5NTL

205 U117 1203-001702 ÒIC-DC/DC CONVERTER;1676,SOP,10P,112MIL,PLASTIC,2/5Ó MAX1676EUB-T


207 U121 1003-001226 ÒIC-POWER DRIVER;D361A,SOP,8P,120MIL,SINGLE,90MA,TPÓ D361A

208 U122 1203-002076 ÒIC-VOLTAGE REGULATOR;2985,SOT-23,5P,63MIL,PLASTIC,Ó LP2985AIM5-3.0

209 U301 0506-000151 ÒTR-ARRAY;UMZ1N,NPN/PNP,1,50V,40V,100mA,Ó UMZ1N-TR



210 U303 2809-001237 ÒOSCILLATOR-VCTCXO;13MHz,5ppm,10Kohm//10pF,TP,3V,2mÓ KT16-KEU30L-13M

211 U304 2909-001144 ÒFILTER-DUPLEXER;942.5MHZ,897.5MHZ,1.55/1.7DB,TP,-,Ó SHS-L090DK

212 U305 1205-001935 ÒIC-TRANSCEIVER;HD155128TF,TP,56P,-,-,3V,400mW,-20tÓ HD155128TF

213 U307 1203-001701 ÒIC-VOLTAGE REGULATOR;2982,SOT-23,5P,-,PLASTIC,3.0VÓ LP2982AIM5X-3.0



216 U312 1201-001689 ÒIC-POWER AMP;08107,-,8P,-,DUAL,34dB,-,4.5V,-,-30toÓ PF08107B-TB-CAS

217 U313 0801-002397 ÒIC-CMOS LOGIC;7W08,AND GATE,SSOP,8P,110MIL,DÓ TC7W08FU-TE12L

218 U315 1203-001701 ÒIC-VOLTAGE REGULATOR;2982,SOT-23,5P,-,PLASTIC,3.0VÓ LP2982AIM5X-3.0


220 U317 0801-002237 ÒIC-CMOS LOGIC;74HC04,INVERTER GATE,SOP,5P,49Ó TC7SH4FU-TE85L

221 U318 4709-001144 ÒCOUPLER-DIRECTION;897.5/1747.5MHZ,19DB/14DB,24DB,2Ó LDC15D140A0007











232 ZD108 0406-001083 ÒDIODE-TVS;-,6.1/-/7.2V,150W,SOT-323-5LÓ ESDA6V1W5






238 ZD118 1405-001093 ÒVARISTOR;14V,20A,1x0.5x0.6mm,TPÓ VC040214X300







4. Block Diagrams

4-1 Main Base Band

4-1 Block Diagrams

Bat

tery

Typ

e

Bat

tery

Volt

age

Bat

tery

Tem

per

atu

re

3VT

X

XV

CC

3VB

RIG

HT

RT

C_3

V3

LD

O

AV

cc L

DO

Vcc

LD

O

ALE

RT_

VC

C L

DO

Ser

ial D

ata

Inte

rfac

e

I/OIn

terf

ace

A/D

Inte

rfac

e

AG

C,A

FC

PL

L

DC

/DC

CO

NV

ER

TE

RC

har

gin

g

Cir

cuit

Li-

Ion

Bat

tery

(Slim

, Sta

nd

ard

Lo

ng

)

ON

E C

VIB

RA

TOR

SY

ST

EM

CL

OC

K(1

3MH

z)

SR

AM

FL

AS

H1

FL

AS

H2

EE

PR

OM

RT

C_C

LO

CK

(32.

768K

Hz)

KE

Y_B

OA

RD

SIM

CA

RD

SP

EA

KE

R

MIC

LC

D

BB

INT

ER

FAC

E

RF

INT

ER

FAC

E

Bas

e B

and

Blo

ck D

iag

ram

of

SG

H-N

300

Block Diagrams 4-2

4-2 Main RF

RF

Blo

ck D

iag

ram

of

SG

H-N

300

IF S

AW

Filt

er(2

25M

Hz)

LC Filt

er(4

5MH

z)

Dua

l Pow

er A

MP

Mod

ule

VC

TC

XO

13M

Hz

IF V

CO

1080

MH

z

925~

960M

Hz

Ant

. S/W

VC

1(E

-GS

M)

VC

2 (D

CS

)

LPF

LPF

Dip

.

TX

RX

VC

3

Rx

SA

W fi

lter

1805

~18

80M

Hz

Rx

SA

W

filte

rLN

A

LNA

PLL

1

PLL

2

PG

A

90

°S

hift

÷ 2

90M

Hz

÷ 6

90

°S

hift

÷ 2

DC

S :

270M

Hz

E-G

SM

: 54

0MH

z

I&Q

M

od.

E-G

SM

: 27

0MH

zD

CS

: 13

5MH

z

Pha

seD

etec

tor

Loop

filte

r

E-G

SM

: 27

0MH

zD

CS

: 13

5MH

z

Bas

eban

dB

lock

880

~ 9

15M

Hz

1710

~ 1

785

MH

z

Tx

Dua

l V

CO

AP

CC

ircui

t

Mix

er 2

Ser

ial d

ata

inte

rfac

e

45M

Hz

270M

Hz

÷ 2

E-G

SM

: 1

150~

1185

MH

zD

CS

:

15

80~

1655

MH

z

I -I Q

-Q

I&Q

Dem

o.

I -I Q

-Q

CLK

SD

ATA

LEbi

as c

ircui

t

Mix

er 1

RF

VC

O

Rx

SA

W fi

lter

÷ 2

Rx

SA

W

filte

r

540M

Hz

Dua

l Dire

ctio

nal

Cou

pler

E-G

SM

: 1

150~

1185

MH

zD

CS

:

157

5~16

50M

Hz

(CH

62

: 947

.4M

Hz)

(CH

698

: 18

42.4

MH

z)

(CH

62

: 902

.4M

Hz)

(CH

698

: 17

47.4

MH

z)

CH

62

: 1

172.

4MH

zC

H 6

98 :

1617

.4M

Hz

4-3 Block Diagrams

4-2-1 RF Transmit Part

a b cd

e

U30

5

HD

1551

28T

F

Ant

enna

S/W

U30

4

U10

8

VP

4057

5

TX

EN

RA

MP

DA

C

BA

ND

Sel

ectio

n

- G

SM

: Lo

w

- D

CS

: H

igh

ITX

P

ITX

N

QT

XP

QT

XN

Loop

Filt

er

TX

VC

OU

200

Dua

l PA

MU

312

AP

C C

ircui

t

Cou

pler

153

1 3

7 5

U31

8

U31

8

8 8

137

2

540

MH

z

PC

N :

1575

~ 1

650

MH

z (T

x)G

SM

: 11

50 ~

118

5 M

Hz

414

111

2

34

5

38 35 20 19 18 17

3047

106

814 2 5

2

1A

nt. S

/WC

ontr

olC

ircui

t

3VT

XT

XE

N2

VC

1V

C2

VC

3

VC

3V

C2

VC

1

GS

M(T

x)

DC

S(T

x)

Rx

H

H

HLL

LL L

L

11

SI4

133-

MLP

28U

302 V

CT

CX

O13

MH

zU

303

IF V

CO

1080

MH

z

PLL

1

PLL

2

RF

VC

O

AF

CD

AC

10 23

15

880

~ 9

15M

Hz(

EG

SM

)89

0 ~

915

MH

z(P

GS

M)

1710

~ 1

785M

Hz(

DC

S)

U30

5

HD

1551

28T

F

Ant

enna

S/W

U30

4

U10

8

VP

4057

5

TX

EN

RA

MP

DA

C

BA

ND

Sel

ectio

n

- G

SM

: Lo

w

- D

CS

: H

igh

ITX

P

ITX

N

QT

XP

QT

XN

Loop

Filt

er

TX

VC

OO

SC

301

Dua

l PA

MU

312

AP

C C

ircui

t

880

~ 915

MH

z

1710

~

17

85

MH

z

Cou

pler

159

1 3

7 5

U31

8

8

137

2

1080

MH

z

DC

S :

1575

~ 1

650

MH

z (T

x)E

-GS

M :

1150

~ 1

185

MH

z

414

111

2

34

5

38 35 20 19 18 17

3047

51

814 2 5

2A

nt. S

/WC

ontr

olC

ircui

t

3VT

XT

XE

N2

VC

1V

C2

VC

3V

C3

VC

2V

C1

E-G

SM

(Tx)

DC

S(T

x)

Rx

H

H

HLL

LL L

L

11

SI4

133-

MLP

28U

302 V

CT

CX

O13

MH

zU

303

IF V

CO

1080

MH

z

PLL

1

PLL

2

RF

VC

O

AF

CD

AC

10 23

15

E-G

SM

DC

S

Block Diagrams 4-4

4-2-2 RF Receive Part

RF

SA

WF

ilter

F30

4

VP

4057

8U

108

IRX

P

IRX

N

QR

XP

QR

XN

RX

EN

1

RX

EN

2

925

~ 9

60 M

Hz

1805

~ 1

880

MH

zH

D15

5128

TF

U30

5

Ant

enna

S/W

U30

4

2

LN

A

LN

A

C32

8, L

310

F30

1

IF S

AW

Filt

er(2

25M

Hz)

Mix

er 2

PG

AI &

Q

Dem

od.

Mix

er 1

Mix

er 1

LC F

ilter

(45M

Hz)

1/2

3047

9 16

2 2

5 5

2

8

6 6

53 3

49,5

0

1,2

7,8

40,4

1

27

SD

ATA

SC

LK

SY

NE

N1

-46d

Bm

@ 9

47.4

67 M

Hz

(E-G

SM

62C

H)

-50d

Bm

@ 1

842.

467

MH

z(D

CS

698

CH

)

-47d

Bm

-30d

Bm

-33d

Bm

-38d

Bm

-52d

Bm

-43d

Bm

-9dB

m @

117

2.4

MH

z-9

.5dB

m @

161

7.4

MH

zG

SM

: 11

50 ~

118

5 M

Hz

DC

S :

1580

~ 1

655

MH

z

-8dB

m @

108

0MH

z

-24.

4dB

m (

G)

-29d

Bm

(D

) @

224

.933

MH

z

-31d

Bm

(G

)-3

5dB

m (

D)

-22d

Bm

(G

)-2

5dB

m (

D)

@ 4

5.06

7 M

Hz

-50d

Bm

(G

)-5

4dB

m (

D)

@ 6

7 kH

z

26 25 24

33 32

4443

4

2

6 10

SI4

133-

MLP

28U

302 V

CT

CX

O13

MH

zU

303

IF V

CO

1080

MH

z

PLL

1

PLL

2

RF

VC

O

AF

CD

AC

10 23

15

RF

SA

WF

ilter

F30

5

RF

SA

WF

ilter

F30

3

RF

SA

WF

ilter

F30

2

544

2

4

Fre

qu

ency

= 9

47.4

67 M

Hz

Po

wer

= -

46

dB

m

5. Flow Chart of Troubleshooting

5-1 Power ON

5-1 Flow Chart of Troubleshooting

'POWER ON'does not work

Charge the BatteryCheck the Battery Voltage

is more than 3.2V

No

Yes

Yes

Replace KeypadWhen the "END" key is

pressed, the voltage of "D107 pin3" 3.6V?

No

Yes

U117, pin10 > 3.2V Check the circuit related to U117

No

END

U119, pin 5 3.0 V ? Check the circuit related to U119

No

Yes

Check the initial operation

U110, pin5 3.0 V ? Check U110 and related circuit

No

Yes

Check for the clock signal at R301,C302Check the clock generation circuit

(related to U301 and U303)

No

Yes

Yes

Flow Chart of Troubleshooting 5-2

C21

0

10U

F/6

.3V

D11

0M

CL

4154

C20

010

NF

C17

91U

F

47u

HL

102

BT

C-0

309-

470M

R19

2N

C

C15

0

0R19

1

9

OU

T10

RE

F5

_LB

O3

_SH

DN

6

10U

F/6

.3V

MA

X16

76E

UB

-T

U11

7

7B

AT

T4

CL

SE

L

FB

1

8G

ND

2L

BI

LX

1UF

100N

FC

175

C20

2

D10

8C

RS

04-T

E85

L

1KR10

1

C20

910

0UF

/6.3

V

10U

F/6

.3V

C19

6

RB

414

BA

T10

1

R16

4

200

C19

010

0PF 1U

FC

214

GN

D2

NC

4O

N/O

FF

3

VIN

15

VO

UT

2G

ND

NC

4O

N/O

FF

3

VIN

1V

OU

T5

U11

0

LP

2981

AIM

5X-3

.0

LP

2981

AIM

5X-3

.0

U11

9

C15

627

PF

C21

110

NF

10U

F

10U

F/6

.3V

C18

5

10N

F

C20

8

10U

F/6

.3V

C19

8

10N

FC

162

C19

1

3O

N/O

FF

1V

INV

OU

T5

LP

2985

AIM

5-3.

0

U12

2

BY

PA

SS

4

2G

ND

C10

310

0NF

C11

01U

F

LP

2985

AIM

5-3.

3

U11

6

BY

PA

SS

4

2G

ND

3O

N/O

FF

1V

INV

OU

T5

1UF

C20

3

+VB

AT

TR

TC

_3V

3

AL

ER

T_V

CC

RT

C_V

CC

PO

WE

R

VC

C

AV

CC 3.

3V

Flow Chart of Troubleshooting5-3

5-2 Initial

Initial Failure

After power on,check and repair the important

signals of U108 as follows

END

NoDownloading SW is OK ?(Is CSROM signal OK ?)

The node between R162 and C183

= "H" (RST)

No Check the circuit related to reset

R114 = "H" (BOOT)No

Resolder R114

Yes

R150 = "H" (GPIO4)No

Resolder R150

Yes

R165 = "L" (GPIO2)No

Resolder R165

Yes

Replace PBA

Check all the other connection by Test S/W

Check the circuit around LCD

Check the circuitaround U107(EEPROM)

and data stored in it

Yes

Flow

Chart of Troubleshooting

5-4

U108

U112

U109

VCC

VCC

R162

C183

R114

R150

R156

VCC

GPIO4

SIMPWDN_BOOTF_WP

F_WPF_VCCW

SYSRST

GPIO3

GPIO4

DTR1

Q108

R163CSROM

_F_BE0

_F_BE1

GPIO11

R197

YO

E

A

Y1

VCC

VCC

U103


5-3 Charging Part

Abnormal charging part

Replace TACheck the CN104 pin 14,15 9.0 V ?

No

Yes

Yes

Check the U105, pin 14,15 9.0 V ?Resolder

C111,C217,C105,FB102,FB101

Yes

No

R131(CHG_ON side) = "L" ? Resolder R131

Yes

No

Resolder components aroundU105

Check the U105, pin 10 4.2V ?

END

Yes

No


R11

7

7.5K

,1%

270K

,1%

R13

5

DA

N22

2TL

D10

1

R19

510

0K

D10

3C

RS

04-T

E85

L

C14

010

0NF

100K

,1%

R12

8

C13

0

10U

F/6

.3V

27P

FC

111

R12

41K

13 2

300

R11

8

R13

1

DT

C14

4EE

/TR

Q11

1

10U

F/6

.3V

10K

FB

101

BL

M11

P60

0SP

T

C13

1

R19

4

12K

,1%

18K

,1%

R19

3

10u

HL

104

100N

FC

125

3.3U

F16

V

DT

C14

4EE

/TR

Q10

5

13 2

C10

5

BL

M11

P60

0SP

T

FB

102

Q10

6D

TC

144E

E/T

R

13 2

3.3U

FC

217

82K

,1%

R12

9

16V

CR

S04

-TE

85L

D11

1

1UF

C12

0

C10

810

0NF

5O

VP

PR

OG

13

7S

EN

SE

SW

2

VC

1214V

CC

1

15V

CC

2

BO

OS

T3

GN

D1

1

GN

D2

4 8G

ND

39

GN

D4

GN

D5

16

6N

C1

11N

C2

DC

VO

LT

U10

5L

T15

10-5

CG

N#T

R 10B

AT

CH

G_O

N

MA

X4.

2

+VB

AT

T

BA

T_V

OL

T


5-4 Sim Part

U101 pin5 = "H" ?Replace U101 or

Replace PBA

END

Yes

No

Check the circuit around U107(Serial EEPROM) and data stored in it

Yes

Phone can't access SIM card

Yes

U101 pin 2, 3 = 3.0 V ?Replace U101 or

Resolder C107,C109

Yes

No

After Power ON,Check SIMCLK Signal on CN102 pin 3

in a few second

After SIM card insert,CN102 pin 2 = "H(SIMRST) ?

CHECK C409Replace PBA

CHECK C410Replace PBA

Yes

No

No

U101 pin4 = 3.0 V ?

Yes

No

Check the circuit around U101


CN

102-

1

SIM

DA

TA

C10

41U

F

SIM

AL

IM

SIM

RS

T

SIM

CL

K

1-33

8063

-98

C10

1

2C

N10

2-21-

3380

63-9

2

SIM

CO

NN

EC

TO

R

CN

102

4 5

3 16

FD

G63

23L

C10

910

KR

103

10P

F

CN

102-

51-33

8063

-97

CN

102-

6

NCC410

C409 NC

100PFC408

100PFC407

1-33

8063

-9C

N10

2-3

3

CN

102-

41-33

8063

-96

5O

N/O

FF

R1,

C1

6R

212

V.C

1-1

3V

.C1-

2

4V

IN,R

1

VC

C

1-33

8063

-91

U10

1

FD

G63

23L

10U

F/6

.3V

10N

F

C10

7


5-5 Microphone Part

Microphone does not work

Resoler J101J101 pin 4, 5 = short?

U110 pin 5 (AVCC) 3.0V?

Check the circuit from U108 to MIC

Check the circuit related to U110

END

Resolder theR177,R176,R174,R175

C188,C187,C189,U115,U113ZD112,ZD109

Yes

No

Yes

Yes

Yes

No

No

Check CN103 Replace LCD_KEY_PAD

No

Yes


J101

MIC

ON

KE

Y_P

AD

U10

8

VX

1P

VX

1N

MIC

+

MIC

-

1

54

MIC

+

MIC

-

RC

FIL

TE

R


5-6 Speaker Part

Speaker does not work

Yes

J101 pin 2, 3 = short Resoler J101

J101 pin 2, 3, 6 1.5 V ?

No

NoReplace the PBA

Yes

Yes

Modify the SPK pinsCheck

the tension of the Speaker

Is Speaker working? Replace the Speaker

END

No

Yes

Yes

No

Flow

Chart of Troubleshooting

5-12

J101 SPK101U110

PWO1P

PWO1N

SPK+

SPK-

6

2 3

SPK+

SPK-


5-7 Key Data Input

Check Initial operation

Replace the Keypad

Whenone of the keys is pushed,

is it displayed on LCD

Keypad is OK ?

END

Replace the PBA

Yes

No

Yes

Yes

No

5-14Flow Chart of Troubleshooting

5-8 Alert Tone

Abnormal Alert tone

ALERT by Test S/WIs there alert wave form on the

R110 during alert tone test?

Is there alert wave form on theQ102 pin 3 during alert tone

test?

U116 pin 5 3.3V?

Check the circuit related to Q102

END

Check the circuit related to U116

Yes

No

Yes

Yes

No

No

Buzzer is ok? Change the Buzzer

Yes

No

Fro

m_I

C

2

13

DA

N22

2TL

D10

4

100K

R10

9

RF

GN

D

4.7K

R11

01

3 2

C10

210

0NF

2SD

2114

KT

146V

Q10

2



5-9 Ring Indicator

Ring Indicator LED does notwork

Check the circuit related to U116U116, pin 5 3.3V?

Is Green color of 3 LEDs correctly working?

Is Red color LED of 3 LEDs correctly working?

Check Q112,R112,LED1

END

Check Q101,R102,LED1

Yes

No

Yes

Yes

No

No

Is Blue color LED of 3 LEDs correctly working?

NoCheck Q104,R111,LED2

Yes

CL-165HR/YG-D

LED1

RI_BLUE

RI_GREEN

RTC_3V3

+VBATT

DTC114YE2

3

1

Q101

LED2

SLS-NNBD102TS

100,5%

R111

0R198

R102

47,5%

RI_RED

NCR113

Q112DTC114YE

23

1

23

1

R112

24,5%

DTC114YEQ104


5-18Flow Chart of Troubleshooting

5-10 Back Light

Yes

END

Backlight does not work

Select backlight "ON" modeBacklight "ON" mode

in the menu?

R141,R179 = "H" ? GPO1 by test S/W

No

Yes

Yes

No

ResolderR141,R149,R139,R145,R148or replace Q107Q107 pin 3 = "L" ?

LCD backlight on ? Replace LCD

No

Yes

No

LCD BACKLIGHT EL_Backlight

Resolder R179,C199 U121 pin 5 = "H" ?No

Yes

Yes

END

U121 pin 4 = 3.3VResolder U122,C200,C196No

U121 pin 7 = 150VResolder L103,Q110No

Is it workingReplace LCDNo


Q10

7

U10

8

R14

1

R14

9

Key

PAD

LE

D

GP

O1

1 2 4

C21

3

8 7 5

R17

9

C19

9

EL

U12

1Q

110

ALE

RT

_Vcc

R13

9

R14

3

R14

5

R14

8

L103


5-11 GSM Receiver

Rx OnRF input : CH center freq. + 67.7 kHz

Amp. : -50 dBm

U304Pin 2

≥ -65 dBm

U304Pin 9

≥ -65 dBm

F304Pin 5

≥ -70 dBm

F303Pin 2

≥ -60 dBm

U305Pin 53, 54

≥ -60 dBm

U305Pin 49, 50(225 MHz)

≥ -50 dBm

U305Pin 43, 44(45 MHz)

≥ -55 dBm

ResolderJ301

Resolder &U304 Pin 9≥ -65 dBm

CheckVC1 : LVC2 : LVC3 : H

ResolderF304

ResolderC341, L317, L316, C336, C333

ResolderF303, L323, L324

CheckC301(CH+225MHz)

≥-20 dBmC315(1080MHz)

≥ -20 dBm

ResolderU302

ResolderF301,C309,C310,C313

C314,C318,C312,L308, R309

U305Pin 24, 25, 26, 27

≥ 40 mV

ResolderOneC(U108), U305

Check U305Pin 32, 33 ≥ 2.5 V

Pin 35 ≤ 0.5 V

ResolderU305 (Pin35, Pin 32, 33)

ResolderU108

No

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes


5-12 GSM Transmitter

Tx On (level : 5)

U304Pin 2

≥ 30 dBm

U304Pin 7

≥ 30 dBm

U318Pin 1

≥ 30 dBm

U312Pin 1

≥ -10 dBm

OSC301Pin 1

≥ -10 dBm

OSC301Pin 6 ≤ 0.5 V

Pin 10 ≥ 2.8 VPin 7 ≥ 2.8 V

Pin 9 = 0.5~2.5 V

ResolderJ301

CheckVC1 : HVC2 : LVC3 : L

Change or ResolderU304

ResolderU318, C353

Resolder or ChangeR334, R335, R364, R366

ResolderOSC301, R343

U305pin 30, 47 ≥ -10 dBm

ResolderU305, U302

U305Pin 17, 18, 19, 20

≥ 40 mV

ResolderOneC(U108)

Check U305Pin 38 ≥ 2.5 VPin 35 ≤ 0.5 V

ResolderU305 (Pin35, Pin38)

ResolderU108

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

CheckAnt. S/W Control Circuit

CheckU312 : +VBATT,

Pin 2 (APC)OK?

Resolder orChange U312

Yes

Check +VBATTor APC Control

No


5-13 DCS Receiver

Rx OnRF input : CH center freq. + 67.7 kHz

Amp. : -50 dBm

U304Pin 2

≥ -65 dBm

U304Pin 16

≥ -65 dBm

F305Pin 5

≥ -70 dBm

F302Pin 2

≥ -60 dBm

U305Pin 2, 3

≥ -60 dBm

U305Pin 49, 50(225 MHz)

≥ -50 dBm

U305Pin 43, 44(45 MHz)

≥ -55 dBm

ResolderJ301

Resolder &U304 Pin 16≥ -65 dBm

CheckVC1 : LVC2 : LVC3 : H

ResolderF305

ResolderF302, C331, C332

CheckC301(CH-225MHz)

≥-20 dBmC315(1080MHz)

≥ -20 dBm

ResolderU302

U305Pin 24, 25, 26, 27

≥ 40 mV

ResolderOneC(U108), U305

Check U305Pin 32,33 ≥ 2.5 V

Pin 35 ≥ 2.5 V

ResolderU305 (Pin 35, Pin 32, 33)

ResolderU108

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

ResolderC350, L319, C354,L318, L321, C355

ResolderF301,C309,C310,C313

C314,C318,C312,L308, R309

No


5-14 DCS Transmitter

Tx On (level : 0)

U304Pin 2

≥ 25 dBm

U304Pin 13

≥ 25 dBm

U318Pin 3

≥ 25 dBm

U312Pin 8

≥ -10 dBm

OSC301Pin 5

≥ -10 dBm

OSC301Pin 6 ≥ 2.5 V

Pin 10 ≤ 0.5 VPin 7 ≥ 2.5 V

Pin 9 = 0.5~2.5 V

ResolderJ301

CheckVC1 : LVC2 : HVC3 : L

Change or ResolderU304

ResolderU318, C364

Resolder or ChangeR346, R363, R365

ResolderOSC301, R343

U305pin 30, 47 ≥ -10 dBm

ResolderU305, U302

U305Pin 17, 18, 19, 20

≥ 40 mV

ResolderOneC(U108)

Check U305Pin 38, Pin 35

≥ 2.5 V

ResolderU305 (Pin35, Pin38)

ResolderU108

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

CheckAnt. S/W Control Circuit

CheckU312 : +VBATT,

Pin 2 (APC)OK?

Resolder or ChangeU312

Yes

Check +VBATTor APC Control

No


64

RF

GN

D

UM

Z1N

-TR

U30

1

25

13

C30

2

1NF

RFOUT

26

SCLK 27

SDAT

25

SENB

VD

DD

17

24

VDDI11

VDDR

15X

IN

IFL

A

20IF

LB

23

IFOUT

13

PWDNBR

FL

A6 5

RF

LB

3R

FL

C

2R

FL

D

10

GNDI

21G

ND

I1

GN

DR

4

9

GNDR1

GN

DR

27

28

GNDR3

1G

ND

R4

GN

DR

5

8

19

AUXOUT

29 GN

D4

GN

D5

30

31

GND6G

ND

732

18G

ND

D

16G

ND

D1

GNDD2

14 22

SI4

133-

ML

P28

U30

2

12

RF

GN

D

10n

HL

304

0R31

1

R30

1

RF

GN

D

R30

20

3.3K

100N

FC

303

C31

610

0NF

1KR30

8

R30

5

1K10N

F

C30

6

RF

GN

D

RF

GN

DR

FG

ND

VC

14

VC

C

10R

312

U30

3K

T16

-KE

U30

L-1

3.00

0M

GN

D2

OU

T3

RF

GN

D10K

R30

3

C32

010

NF

C30

8

RF

GN

D

R31

31K

100N

F

10N

F

C31

9

75K

R30

4

C30

156

0PF

1NF

RF

GN

D

100N

FC

304

RF

GN

D

C30

7

R31

01.

5K

2.2n

HL

301

560P

FC

315

5.6N

FC

305

27n

HL

303

SD

AT

A

SC

LK

3VS

YN

TH

XV

CC

AF

C

CL

K13

M

RF

LO

IFL

O

SY

NE

N1


Film

Cap

Co

ilcra

ft

Co

ilcra

ft

Co

ilcra

ft

2012

1% 1% 1%1%

Film

Cap

Co

ilcra

ft

2012

Co

ilcra

ft

6.8K

,1%

R33

9

C36

547

0PF

C35

9

R33

3

8.2N

F

NC

22K

,1%

1.2P

FC

354

C31

1

U31

3-1

TC

7W08

FU

-TE

12L

4

1 2

8

7C40

1

RF

GN

D

1NF

10N

F

RF

GN

D

RF

GN

D

C32

7

NC

RF

GN

D

10R33

4

C34

7

10P

F

C38

310

0R

337

3PF

10R34

8

L30

547

nH

C33

6

10N

FC

321

RF

GN

D

22R37

0

TC

7W08

FU

-TE

12L

U31

3-2

5 6

3

RF

GN

D

C31

4

RF

GN

D

RF

GN

D

20P

F

RF

GN

D

51R31

4

R34

310

1NF

R34

16.

8K,1

%

L30

8

C36

2

NC

C34

6

68n

H

L31

65.

6nH

NC

C32

9

L30

9N

C

120n

H

L30

2

RF

GN

D

RF

GN

D

NC

C35

5

5.6n

H

RF

GN

D

RF

GN

D

0

L32

1

R34

24.

7K

R35

1

VCCIF

29V

CC

IFL

O

22VCCIQ

51 VCCMIX

12V

CC

PL

L/L

NA

48 VCCRELO

11V

CO

IN

QOUT

24QOUTB

21RESET

47 RFLOIN

1S

DA

TA

37T

ES

TO

UT

14V

CC

CO

MP

42V

CC

CT

RL

45

NC

NC

34

15PLLOUT

33P

OO

NR

X1

32P

OO

NR

X2

38P

OO

NT

X

18QIN

17QINB

25

32M

IX1D

CS

INB

53 MIX1GSMIN

54 MIX1GSMINB

49 MIX1OUT

50 MIX1OUTB

44 MIX2OUT43 MIX2OUTB

36

IFIN

40IF

INB

30IF

LO

IN

20IIN

19IINB

27IOUT

26IOUTB

55 LE

MIX

1DC

SIN

GNDIQ

52 GNDMIX

GN

DP

LL

/LN

A136

GS

MB

4G

SM

C5

GS

ME

16ICURAD

31IF

DIV

SE

L

41

CLK

10D

CS

B

8D

CS

C9

DC

SE

1

7D

CS

E2

39G

ND

CT

RL

46 GNDIF

28GNDIFLO

23

RF

GN

D

U30

5H

D15

5128

TF

35B

AN

D

56R

FG

ND

NC

C36

7

C35

07P

F

RF

GN

D

7PF

C34

1

3.3P

FC

318

RF

GN

D

RF

GN

D

RF

GN

D

C33

110

0PF

NC

L32

422

nH

L322NC

C34

2

C34

41N

F

C37

98.

2PF

R31

5

RF

GN

D

RF

GN

D

1K

NC

1NF

C34

9

C3241NF

C403

RF

GN

D

C31

320

PF

100,

5%

10P

F

C38

7

RF

GN

D

RF

GN

D

100

R34

5

82R33

1

R32

547

C33

5

13

GG

46G

IN2

OU

T5

5.6p

F

12P

FC

309

B41

44F

305 G

27P

FC

345

C34

8 RF

GN

D

18P

F

RF

GN

D

R36

9

22

47n

HL

306

L31

92.

7nH

C3261NF

C36

6

NCC322

R30

92.

2K

10N

F

10NFC374

C325

C33

81N

F

1NF

F30

6N

FM

39R

12C

471T

1

RF

GN

D

C31

012

PF

100P

FC

333

27P

FC

339

1K

1NFC373

G2

G3 5

2IN

4O

UT

1

OU

T2

6

R31

9

6.8K

,1%

R33

8

B41

21F

303

G1 1

3

NC

8.2P

FC

378

L31

2

C35

81N

F

RF

GN

D

8.2n

HL

317

C39

227

PF

RF

GN

D

10R

349

6.8n

HL

318

22n

HL

323

G

13

GG

46G

IN2

OU

T5

C35

6

RF

GN

D

B41

27F

304

RF

GN

D

27P

F

RF

GN

D

1NF

C33

0

G1 1

3G

2G

3 5

2IN

4O

UT

1

OU

T2

6

912

G5

IN2

IN.G

1

OU

T8 7

OU

T.G

B41

33F

302

B48

33F

301

EXP

10

G1

3

G2

4

G3

6

G4

1NF

C36

0

RF

GN

D

1.8P

FC

312

RF

GN

D

RF

GN

D

RF

GN

D

RF

GN

D

L31

082

nH

RF

GN

D

C32

815

0PF

100P

FC

332

47R37

1

RF

GN

D

C33

727

PF

R34

06.

8K,1

%

RF

GN

D

G

8

G 1112G

1G

SM

_OU

T

PS7

6S

EL

10S

EL

OS

C30

1Q

VC

9617

47R

T-4

051

CO

NT

95

DC

S_O

UT 2

GG

34

G

C39

527

PF

27P

FC

371

47N

FC

391

RF

LO

DC

ST

X

GS

MT

X

3VB

AN

DS

EL

3VB

AN

DS

EL

3VB

RIG

HT

QR

XN

SD

AT

A

GS

MR

X

DC

SR

X

3VB

RIG

HT

IFL

O

SC

LK

IRX

NIR

XP

AG

C_E

N

QR

XP

QT

XP

QT

XN

ITX

P

ITX

NTX

EN

1

RX

EN

2

3VT

X

_3V

BA

ND

SE

L

3VT

X

3VT

XE

N1

RX

EN

1


LLH

H

Tx(

GS

M)

An

ten

na

S/W

Co

ntr

ol C

ircu

it

L

L

25

VC

3V

C2

RX

VC

1 :

GS

M T

X

VC

1

BC

R08

PN

L L H

6 4

1Tx(

DC

S)

3

VC

2 :

DC

S T

X

5.6n

HL

320

22K

R32

6

G4 6

1IN

2O

UT

C36

156

PF

RF

GN

D

J301

MH

C-1

73

G1 34G2

G3 5

2

B25

6

C1

C2 3

1

E1

E24

RF

GN

D

3VT

XE

N1

BC

R08

PN

U30

9

B1

R36

482

R35

3

R34

612

R35

70

NC

100P

F

RF

GN

D

RF

GN

D

C35

3

C38

6

RF

GN

D

C35

110

0PF

1

3PF

12

DT

C11

4YE

Q30

12

3

RF

GN

D

RF

GN

D

R36

5

RF

GN

D

RF

GN

D

IN3 4

IN1

OU

T1

V+

5 V-

2

C40

622

0PF

U30

6L

M71

31A

CM

5

L31

1

33n

H

120,

5%R

330

U31

4B

CR

08P

N

2

B15

B2

C16

3

C2

E1 1

4

E2

27P

F

6.8n

HL

326

RF

GN

D

C39

4

10K

R33

2

R34

410

K

DO

5 6G

D2

GD

1

GI

1G

O7

TM

4

RF

GN

D

U31

8L

DC

15D

190A

0007

A

8CO

DI

3

100

R36

3

RF

GN

D

R36

615

E2

RF

GN

D

560

R32

4

U31

0

BC

R08

PN

2B

15

B2

C1

6

3C

2

E1

1

4

1NF

C38

2

33n

H

L31

4

RF

GN

D

RF

GN

D

AN

T30

131

98.1

7

L32

533

nH

1608

100P

FC

404

C35

21.

8NF

RF

GN

D

C35

782

0PF

R33

515

33P

FC

364

10N

FC

402

RF

GN

DR

FG

ND

RF

GN

D

33P

FC

334

RF

GN

D

33P

FC

377

C32

382

0PF

3VT

XE

N1

2.7K

R36

2

RF

GN

D

3.9K

,1%

R36

1

RF

GN

D

NC

C37

2

0R

358

1.2K

R32

2R

329

1.8K

R31

8

27P

FC

369

RF

GN

D

680

R34

710

K

1KR32

7

8.2K

R32

1

VC

1

VC

214 11

VC

3

100P

FC

340

GG 81

0GG

1215

G 17

G

9G

SM

_RX

7G

SM

_TX

4A

NT

2

DC

S_R

X16

DC

S_T

X13

G 1

G

183G

G 56

560

RF

GN

D

RF

GN

D

SH

S-L

090D

E

U30

4

RF

GN

D

RF

GN

D

R32

3

RF

GN

D

RF

GN

D

4P

OU

TG

SM

2V

AP

C

7V

CT

L

VD

D1

36 VD

D2

51R36

0

G5 1314G6

G7 1516G8

G9 17

PIN

DC

S8

PIN

GS

M1

PO

UT

DC

S5

U31

2P

F08

107B

-TB

G1 9

18G10

10G2G3 11

12G4

NC

C38

5

RF

GN

D

RF

GN

D

RF

GN

D

D30

1H

SM

S-2

805-

L31

1 2

3 4

12K

R36

8

RF

GN

D

C39

622

0UF

6.3V

3VT

XE

N1

+VB

AT

T

TX

EN

2

3VB

AN

DS

EL

VC

2

VC

1

GS

MT

X

DC

SR

X

GS

MR

X

DC

ST

X

3VT

X

RX

EN

1VC

1

TX

PO

WE

R


RF

GN

D

10K

R33

6

RF

GN

D

RF

GN

D

RF

GN

DR

FG

ND

RF

GN

D

TC

7SH

04F

U-T

E85

L

GN

D3

IN21

NC

OU

T45

VC

C

10K

RF

GN

D

U31

76

R2

12

V.C

1-1

3

V.C

1-2

4V

IN,R

1

R35

0

U31

6

FD

G63

23L

5O

N/O

FF

R1,

C1

10N

F10

0NF

C39

9

RF

GN

D

C40

0

C39

31U

F

LP

2982

AIM

5X-3

.0

4B

YP

AS

S

GN

D2

ON

/OF

F3

VIN

15

VO

UT

C36

8

RF

GN

D

U31

5

1UF

C36

3

10U

F/6

.3V

10U

F/6

.3V

C37

0

3 1

RF

GN

D

RF

GN

D

10N

FC

376

1

Q30

3

DT

C11

4EE

/TR

2

RF

GN

D

Q30

2

DT

B11

3ZK

2

3

RF

GN

DR

FG

ND

RF

GN

D

RF

GN

D

RF

GN

D

100N

FC

388

GN

D2

4N

C3

ON

/OF

F

1V

IN5

VO

UT

10N

F

U31

1

LP

2981

AIM

5X-3

.0C

384

C38

9

C39

8

RF

GN

D

10U

F/6

.3V

2V

.C1-

2

3V

IN,R

14

10U

F/6

.3V

RF

GN

D

FD

G63

23L

U30

8

ON

/OF

F5 6

R1,

C1

1

R2

V.C

1-1

C37

510

0NF

U30

7

BY

PA

SS

4

2G

ND

3O

N/O

FF

1V

INV

OU

T5

RF

GN

D

100U

FC

381

LP

2982

AIM

5X-3

.0

3VB

AN

DS

EL

_3V

BA

ND

SE

L

3VT

X

3VB

RIG

HT

3.3V

3VT

XE

N1

TX

EN

1

SY

SC

LK

EN

A

SY

NE

N

XV

CC

3VS

YN

TH

BA

ND

SE

L

Documents

Samsung SGH-N300 service manual - narod.ru