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Samsung SGH-N400, Service Manual

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ELECTRONICS

SERVICE

DUAL BAND Mobile
Cellular Phone 

SGH-N400

Manual

DUAL BAND MOBILE CELLULAR PHONE

CONTENTS

1. Exploded Views and Parts List

2. PCB Diagrams & Schematic Diagrams

3. Electrical Parts List

4. Block Diagrams

5. Flow Chart of Troubleshooting

Summary of Contents for SGH-N400

Page 1: ...L BAND Mobile Cellular Phone SGH N400 Manual DUAL BAND MOBILE CELLULAR PHONE CONTENTS 1 Exploded Views and Parts List 2 PCB Diagrams Schematic Diagrams 3 Electrical Parts List 4 Block Diagrams 5 Flow Chart of Troubleshooting ...

Page 2: ... 1 1 Main Top 2 1 2 Main Bottom 2 2 1 Logic Schematic 2 2 2 Power Schematic 2 2 3 RF Schematic 3 Electrical Parts List 3 1 Main Parts 4 Block Diagrams 4 1 Main Base Band 4 2 Main RF 5 Flow Chart of Troubleshooting 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 Auto Antenna Troubl...

Page 3: ...Exploded Views and Parts List 1 1 Main SAMSUNG Proprietary Contents may change without notice 1 1 1 8 6 2 3 10 11 12 15 16 17 22 20 21 19 21 18 13 14 9 7 23 4 5 1 3 1 2 1 6 1 7 1 1 1 5 1 4 3 1 3 3 3 4 3 2 ...

Page 4: ...FLIP ASS Y GH75 00967A EU 1 SA GH75 01254A AMN GH75 01253A ATL GH75 01212A TIM GH75 01289A WIN GH75 01252A XEC 3 NAVI DUMMY FRONT GH72 02165A 1 SNA 4 HINGE ASS Y GH75 00350A 1 SNA 5 LED LENS GH72 02161A 1 SNA 6 WINDOW LCD GH72 02163A 1 SNA 7 SPONGE WINDOW GH74 01104A 1 SNA 2 MAIN PBA GH92 00940A 1 SA 3 REAR ASS Y GH75 00966A 1 SA 1 REAR COVER GH72 02421A 1 SNA 2 LOCKER MAIN GH72 02422A 1 SNA 3 SPR...

Page 5: ...H75 01117A 1 SA 10 BUZZER RUBBER GH73 00602A 1 SA 11 COVER CONN GH73 00758C 1 SA 12 LCD ASSíY GH07 00064A 1 SA 13 SPEAKER 3001 001231 1 SA 14 VOL KEY GH73 00605A 1 SA 15 MOTOR GH31 00028A 1 SA 16 SCREW 6001 000464 2 SA 17 INTENNA MODULE GH75 00802A 1 SA 18 MAIN LABEL GH68 02050C 1 SA 19 MOBILE CAP GH73 00606A 1 SA 20 SCREW CAP GH73 00607A 1 SA 21 SCREW 6001 000883 5 SA 22 WHIP ANT GH42 00104A 1 SA...

Page 6: ...H72 02164A 1 SA 10 BUZZER RUBBER GH73 00602A 1 SA 11 COVER CONN GH73 00758C 1 SA 12 LCD ASS Y GH07 00064A 1 SA 13 SPEAKER 3001 001231 1 SA 14 VOL KEY GH73 00605A 1 SA 15 MOTOR GH31 00028A 1 SA 16 SCREW 6001 000464 2 SA 17 INTENNA MODULE GH75 01117A 1 SA 18 MAIN LABEL GH68 02050C 1 SA 19 MOBILE CAP GH73 00606A 1 SA 20 SCREW CAP GH73 00607A 1 SA 21 SCREW 6001 000883 5 SA 22 WHIP ANT GH42 00104A 1 SA...

Page 7: ...SAMSUNG Proprietary Contents may change without notice 1 4 1 3 Travel Adapter TYPE SEC CODE REMARK A GH44 00171A CHINA B GH44 00184A EUROPE C GH44 00171C UNITED KINGDOM D GH44 00171E JAPAN ...

Page 8: ...SAMSUNG Proprietary Contents may change without notice 1 5 1 4 Cigar Light Adapter Cigar Light Adapter GH44 00199A ...

Page 9: ...Simple Hands Free kit CKT046EBE Model SAMSUNG Proprietary Contents may change without notice 1 6 1 5 Simple Hands Free Kit SEC CODE GH96 00941A ...

Page 10: ...SAMSUNG Proprietary Contents may change without notice 1 7 1 6 Test Jig TEST JIG BOX GH80 10508A TEST JIG CABLE GH39 00079A TEST RF CABLE GH39 00090A ...

Page 11: ...SAMSUNG Proprietary Contents may change without notice 1 8 1 7 Earphone EARPHONE GH96 00830A DATA KIT GH39 00078A 1 8 Data Kit 1 9 Desk Top Charger DESK TOP CHARGER GH44 00232A ...

Page 12: ...8 C720 C721 C722 C724 C725 C726 C765 C766 C769 C770 C772 C774 C775 C776 C777 C778 C779 C780 C784 C785 C786 C787 C789 C790 C792 D102 D109 D500 D506 D509 D511 D512 D513 D704 E101 E102 J503 L102 L205 L206 Q101 Q108 Q109 Q503 Q504 Q507 Q508 Q509 R102 R103 R104 R105 R106 R108 R109 R110 R111 R112 R113 R114 R115 R128 R202 R203 R204 R205 R206 R207 R208 R209 R210 R211 R212 R213 R402 R507 R508 R509 R510 R51...

Page 13: ... C782 C783 C788 C793 D101 D103 D104 D105 D106 D107 D108 D501 D502 D503 D504 D505 D507 D508 D701 D702 D703 D705 D709 D710 D711 F401 F402 F403 F404 GND J101 J102 J103 J501 J502 L101 L203 L204 L301 L302 L401 L402 L403 L405 L406 L407 L408 L409 L410 L411 L412 L413 L414 L415 L416 L417 L418 L419 L420 L421 L422 L423 L701 M500 Q102 Q103 Q104 Q105 Q106 Q107 Q110 Q201 Q301 Q505 Q506 Q510 R107 R116 R117 R118 ...

Page 14: ...SAMSUNG Proprietary Contents may change without notice 2 3 2 2 1 Logic Schematic ...

Page 15: ...SAMSUNG Proprietary Contents may change without notice 2 4 2 2 2 Power Schematic ...

Page 16: ...2 2 3 RF Schematic SAMSUNG Proprietary Contents may change without notice 2 5 ...

Page 17: ... 16 0504 001012 EMD_3 2 DTC114YE Q201 Q509 17 0504 001021 sot_23_hvm14s 1 DTB113ZK U111 18 0504 001060 sot_363 4 BCR08PN U113 U211 U212 U213 19 0505 001332 Csop6_w190 1 FDG6301N Q504 20 0505 001423 Csop6_w190 3 FDG6323L Q108 Q109 Q110 21 0506 001004 Csop5_w210_P0 65 1 UMC5NTL U115 22 0601 001226 SR1608_LED_1226 1 SML 310LT T86 D500 23 0601 001542 R1608_LED_1 3 E1S03 AB1A7 D511 D512 D513 24 0801 00...

Page 18: ... R707 R708 R709 R710 R711 50 2007 000139 ALL1005_RES 4 220 5 R121 R123 R516 R519 51 2007 000140 ALL1005_RES 6 1K 5 R307 R313 R404 R546 R579 R705 52 2007 000141 ALL1005_RES 6 2 2K 5 R116 R125 R308 R534 R554 R555 53 2007 000142 ALL1005_RES 1 2 7K 5 R552 54 2007 000143 ALL1005_RES 4 4 7K 5 R117 R119 R122 R124 55 2007 000148 ALL1005_RES 27 10K 5 R108 R109 R112 R114 R115 R127 R214 R215 R216 R306 R502 R...

Page 19: ...005_RES 1 100K 1 R105 82 2007 007132 ALL1005_RES 2 15K 1 R206 R210 83 2007 007139 ALL1005_RES 1 47K 1 R205 84 2007 007142 ALL1005_RES 1 10K 1 R203 85 2007 007200 ALL1005_RES 3 2 4 5 R577 R578 R589 86 2007 007311 ALL1005_RES 2 22K 1 R204 R225 87 2007 007317 ALL1005_RES 4 2 2K 1 R530 R531 R532 R587 88 2007 007318 ALL1005_RES 4 1K 1 R564 R565 R566 R567 89 2007 007480 ALL1005_RES 1 130K 1 R521 90 2007...

Page 20: ...529 C530 C555 C556 C557 C563 C564 C565 C566 111 2203 000836 ALL1005_CAP 2 C391K 390PF 50V C221 C236 112 2203 000870 ALL1005_CAP 1 C030C 3PF 50V C511 113 2203 000940 ALL1005_CAP 3 C471K 470PF 50V C117 C128 C138 114 2203 000995 ALL1005_CAP 48 C470J 47PF 50V C101 C102 C103 C115 C118 C147 C148 C301 C302 C303 C306 C439 C503 C512 C513 C514 C518 C521 C535 C573 C704 C708 C765 C766 C767 C768 C769 C770 C771...

Page 21: ... C131 C133 C135 C139 C217 C218 138 2404 001162 tantal_test20_v2 1 F950G476MAAJZTQ2 C510 139 2404 001210 R7125_TAN_v2 1 220UF 6 3V C220 140 2404 001239 SR3327_TAN_v2 1 100UF 6 3V C110 141 2404 001268 SR 1 10UF 10V C104 142 2703 001409 ALL1005_IND 3 LL1005 F12NK L401 L403 L701 143 2703 001513 SR1608_IND 2 0603CS R10XJBC L420 L421 144 2703 001685 SR1608_IND 1 0603CS 82NXJBC L423 145 2703 001723 ALL10...

Page 22: ...ID1AS1 6S 2 54SFD J102 175 3710 001105 sm_con2_w438 1 24 8005 002 000 867 M500 VIBRATOR 176 3710 001611 sm_con20_w1340h700_A_v3 1 1005 0018 301 J103 177 3711 004234 sm_con24_w560h290_1 1 AXK6F24335P J501 178 3711 004758 sm_con3_TACT 1 2000 9003 302 J101 179 3722 001380 sm_jack6_53BKA_v3 1 02 787B2 53BKA J502 180 4302 001119 sm_bat2_w750_v2 1 ML414R TT30 BAT100 181 4709 001213 DCS214E 2012 1 DCS214...

Page 23: ...RAM FLASH1 FLASH2 Li Ion Battery Slim StandardLong BB INTERFACE Serial Data Interface I O Interface A D Interface RF Interface SIM CARD Battery Type Battery Voltage Battery Temperature 3VTX 3VBRIGHT ALERT VCC LDO RTC 3V3 LDO AVcc LDO Vcc LDO XVCC AGC AFC PLL DC DC CONVERTER Charging Circuit EEPROM KEY BOARD LCD RTC CLOCK 32 768KHz MIC SPEAKER ...

Page 24: ...SAMSUNG Proprietary Contents may change without notice 4 2 4 2 Main RF ...

Page 25: ...5 Flow Chart of Troubleshooting 5 1 Power ON SAMSUNG Proprietary Contents may change without notice 5 1 ...

Page 26: ...SAMSUNG Proprietary Contents may change without notice 5 2 5 2 Initial ...

Page 27: ...SAMSUNG Proprietary Contents may change without notice 5 3 5 3 Charging Part ...

Page 28: ...SAMSUNG Proprietary Contents may change without notice 5 4 5 4 Sim Part ...

Page 29: ...SAMSUNG Proprietary Contents may change without notice 5 5 5 5 Microphone Part ...

Page 30: ...SAMSUNG Proprietary Contents may change without notice 5 6 5 6 Speaker Part ...

Page 31: ...5 7 Key Data Input SAMSUNG Proprietary Contents may change without notice 5 7 ...

Page 32: ...5 8 Alert Tone SAMSUNG Proprietary Contents may change without notice 5 8 ...

Page 33: ...5 9 Ring Indicator SAMSUNG Proprietary Contents may change without notice 5 9 ...

Page 34: ...5 10 Back Light SAMSUNG Proprietary Contents may change without notice 5 10 ...

Page 35: ...5 11 Auto Antenna Troubleshooting SAMSUNG Proprietary Contents may change without notice 5 11 ...

Page 36: ...5 12 RF Troubleshooting SAMSUNG Proprietary Contents may change without notice 5 12 ...

Page 37: ...5 13 Tx Troubleshooting SAMSUNG Proprietary Contents may change without notice 5 13 ...

Page 38: ...5 14 Rx Troubleshooting SAMSUNG Proprietary Contents may change without notice 5 14 ...

Page 39: ...Samsung Electronics Co Ltd Printed in Korea AUG 2001 Rev 1 2 GH68 02304A ...

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