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Samsung SGH-2488 Service Manual
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Samsung SGH-2488 Service Manual

Samsung SGH-2488 Service Manual

Dual band mobile cellular phone
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SERVICE
DUAL BAND Mobile Cellular Phone
1
4
7
2
A B C
3
D EF
G H I
5
JK L
6
M N O
PQ R S
8
TU V
9
W X Y Z
0
DUAL BAND Mobile
Cellular Phone
SGH-2488
Manual
CONTENTS
1. Exploded Views and Parts List
2. Electrical Parts List
3. Block Diagrams
4. PCB Diagrams
5. Schematic Diagrams

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Summary of Contents for Samsung SGH-2488

  • Page 1 DUAL BAND Mobile Cellular Phone SGH-2488 SERVICE Manual DUAL BAND Mobile Cellular Phone CONTENTS 1. Exploded Views and Parts List 2. Electrical Parts List 3. Block Diagrams 4. PCB Diagrams 5. Schematic Diagrams A B C D EF G H I...
  • Page 2 ELECTRONICS Samsung Electronics Co.,Ltd. Printed in Korea 11/1999 Rev 1.0 GH68-00844A...

  • Page 3: General Description

    E-GSM: RX: Fdl(n) = Ful(n) + 45MHz 1710.2 MHz 1784.8 MHz DCS Tx: Ful(n) = 1710MHz + (0.2MHz) • (n-511) n = ARFCN, 512≤n≤885 DCS Rx: Fdl(n) = Ful(n) + 95MHz 1805.2 MHz 1879.8 MHz < Fig. 1 ARFCN Diagram > Samsung Electronics...
  • Page 4 MS, transferring cell information to MS on downlink, transferring the information about RX level, Quality, and RX level of adjacent cell on uplink. FACCH (Fast Associated Control Channel) steals and changes the TCH when needing a Handover. SDCCH (Stand-alone Dedicated Control Channel) and RACH (Random Access Channel) operate during the call setup procedure. Samsung Electronics...

  • Page 5: Circuit Description

    GSM 05.05. The RF output passes to the antenna connector via an integrated TX/RX switch and lowpass filter to attenuate the harmonics generated by the power amplifier. Samsung Electronics...

  • Page 6: Exploded Views And Parts List

    1. Exploded Views and Parts List 1-1 Main Exploded View (SGH-2488) Samsung Electronics...
  • Page 7 GH73-00188A RUBBER MIC GH73-00189A SPONGE MIC GH74-00355A SPONGE CONNECTOR GH74-00402A SPONGE SPEAK GH74-00403A PM0-SHIELD COVER GH72-00591A PBA MAIN GH92-00878A RMO-CONNECTOR COVER GH73-40673G MOTOR GH31-10004A ANTENNA GH42-00038A SCREW-MACHINE 6001-001148 5PCS RUBBER CAP GH73-00191A BATTERY GH43-00143D 750mAh BATTERY GH43-00183D 1000mAh Samsung Electronics...

  • Page 8: Travel Adapter

    1-3 Travel Adapter 1-4 Travel Adapter Parts List TYPE SEC CODE REMARK GH96-01143A CHINA GH96-01146A EUROPE GH96-01095A UNITED KINGDOM Exploded Views and Parts List...
  • Page 9 1-5 Desk Top Charger SEC CODE : GH44-00090B Exploded Views and Parts List...
  • Page 10 1-6 Desk Top Charger Parts List DESCRIPTION SEC.CODE Q’TY REMARK UPPER CASE HANGER SPRING (L) SCREW TAPPING HANGER SPRING(R) SCREW TAPPING BATT. HOUSING LOWER BASE SCREW TAPPING BUMPON LABEL Exploded Views and Parts List...
  • Page 11 1-7 Ciger Light Adapter 1-8 Ciger Light Adapter Parts List DESCRIPTION SEC CODE REMARK Ciger Light Adapter Code GH44-00040A BLACK Exploded Views and Parts List...
  • Page 12 1-9 Hands Free Kit SEC CODE : GH96-00800A Exploded Views and Parts List...

  • Page 13: Test Jig

    1-10 Test Jig TEST JIG GH80-10508A DATA CABLE GH39-30532A 1-11 Earphone EARPHONE GH96-00830A Exploded Views and Parts List...

  • Page 14: Electrical Parts List

    2 Electrical Parts List 2-1 Main Parts List SEC.CODE DESCRIPTIONS REFERENCE D401,D801 0401-001033 Diode-Switching,25V,200mA D253,D255,D808 0404-001044 Diode-Schottky,20V,1A,SMD D400 0404-001054 Diode-Schottky,70V,15mA,SOT-143 D600 0405-001051 Diode-Varactor,4.7V,50nA,SOT-23 D101,D102,D176,D820,D903,D904 0406-001084 ESD Diode D252 0407-001002 Diode-Array,80V,300mA,CA2-3 D901,D902 0407-001006 Diode-Array,20V,100mA,C2-3 D251 0407-001007 Diode-Array,80V,25mA,CA4-2 Q959 0501-000162 TR-SMALL SIGNAL,PNP,200mW,SOT-323 Q958 0501-000462 TR-SMALL SIGNAL,PNP,225mW,SOT-...
  • Page 15 SEC.CODE DESCRIPTIONS REFERENCE U960 1202-001022 IC-VOLTAGE COMP,SSOP,8P,110MIL,7V U804 1203-001256 IC-SWITCH VOL REG,SOT-23,5P,59MI U801,U803,U805,U806,U810,U811 1203-001285 IC-SWITCH VOL REG,SOT-23,5P,150MIl U809 1203-001511 IC-Reset,SOT-23,3P U253 1203-001515 IC-BATTERY,SSOP,16P,150MIL U812 1203-001702 IC-DC/DC CONVERTER,SOP,10P,112MIL U102 1203-001740 IC-DC/DC CONVERTER,SOP,16P,150MIL U301 1204-001006 IC-IP SYSTEM,SOP,20P,205MIL U300,U305 1205-001307 IC-MIXER,SOP,16,197MIL U200 1205-001643 IC-KERNEL U950 1205-001697...
  • Page 16 SEC.CODE DESCRIPTIONS REFERENCE R130,R136,R417 2007-001119 R-CHIP,680ohm,5%,1/16W,DA,TP,1005 R428 2007-001217 R-CHIP,82ohm,5%,1/16W,DA,TP,1005 R304,R623,R625,R627 2007-001288 R-CHIP,18ohm,5%,1/16W,DA,TP,1005 R431 2007-001295 R-CHIP,39ohm,5%,1/16W,DA,TP,1005 R305,R364,R410,R420,R511,R519,R520,R648,R649 2007-001298 R-CHIP,51ohm,5%,1/16W,DA,TP,1005 R445 2007-001301 R-CHIP,68ohm,5%,1/16W,DA,TP,1005 R404,R406,R617 2007-001305 R-CHIP,120ohm,5%,1/16W,DA,TP,1005 R430,R432 2007-001306 R-CHIP,150ohm,5%,1/16W,DA,TP,1005 R306,R311,R316,R317 2007-001307 R-CHIP,180ohm,5%,1/16W,DA,TP,1005 R613,R805 2007-001308 R-CHIP,200ohm,5%,1/16W,DA,TP,1005 R128,R134 2007-001311 R-CHIP,270ohm,5%,1/16W,DA,TP,1005 R356,R357,R365,R525,R526,R950,R953 2007-001313 R-CHIP,330ohm,5%,1/16W,DA,TP,1005 R612 2007-001316 R-CHIP,820ohm,5%,1/16W,DA,TP,1005 R507,R512...
  • Page 17 SEC.CODE DESCRIPTIONS REFERENCE R983 2007-007630 R-CHIP,14Kohm,1%,1/16W,DA,TP,1005 R355,R902 2007-007788 R-CHIP,332ohm,1%,1/16W,DA,TP,1005 C524 2203-000151 C-CHIP,1.5nF,5%,50V,TP,2012 C215,C216,C217,C218,C303,C318,C337,C362,C368, C411,C416,C501,C502,C503,C508,C509,C516,C521, 2203-000233 C-CHIP,100pF,5%,50V,TP,1005 C623,C628,C635,C642 C348,C512 2203-000278 C-CHIP,10pF,5%,50V,TP,1005 C445 2203-000311 C-CHIP,120pF,5%,50V,TP,1005 C310,C539,C604 2203-000330 C-CHIP,12pF,5%,50V,TP,1005 C625 2203-000359 C-CHIP,150pF,5%,50V,TP,1005 C201,C316,C431,C514,C951,C958,C959,C966,C967, C968,C969,C970,C1009,C1011,C1012,C1013,C1014, 2203-000386 C-CHIP,15pF,5%,50V,TP,1005 C1015,C1016,C1017,C1018,C1019 C127,C135,C207,C311,C351,C352,C354,C356,C361, 2203-000438 C-CHIP,1nF,10%,50V,TP,1005 C371,C373,C375,C379,C504,C522,C621,C627,C637, C641 C624 2203-000455 C-CHIP,1nF,5%,50V,TP,2012 C409...
  • Page 18 SEC.CODE DESCRIPTIONS REFERENCE C341,C349 2203-005050 C-CHIP,1.8pF,5%,50V,TP,1005 C210,C528,C603,C644 2203-005054 C-CHIP,4.7pF,5%,50V,TP,1005 C102,C117,C126,C134,C141,C204,C205,C206 C254,C258,C259,C260,C261,C358,C363,C372 C500,C608,C618,C634,C851,C853,C855,C869 2203-005061 C-CHIP,100nF,+80-20%,16V,TP,1005 C874,C901,C902,C903C904,C905,C961,C971 C972,C973,C974,C995,C999,C1000,C1005,C1010 C170,C171,C172,C173,C257,C364,C533,C534 2203-005065 C-CHIP,1uF,+80-20%,10V,TP,1608 C536,C638,C669,C800,C830,C831,C872 C177,C342,C645 2203-005158 C-CHIP,2.2pF,5%,50V,TP,1005 C629 2203-005195 C-CHIP,10nF,5%,25V,TP,3216 C346,C602,C646 2203-005444 C-CHIP,3pF,5%,50V,TP,1005 C178,C179,C180,C181 2203-005480 C-CHIP,33nF,10%,10V,TP,1005 C957 2203-005481 C-CHIP,47nF,10%,10V,TP,1005 C365,C616 2203-005562 C-CHIP,10uF,+80-20%,10V,TP,3216 C131,C139,C200,C211,C262,C333,C359,C360,C433 C435,C531,C600,C601,C605,C607,C612,C615,C620 2203-000254 C-CHIP,10nF,10%,16V,TP,1005 C622,C626,C630,C636,C801,C828,C833,C850,C852...
  • Page 19 4709-001174 Directional Coupler,890-915/1710-1785MHz R360,R359,R604,R615,R632,C130,C138,C176,C370,C380, SOT,NC C367,C369,C517,C529,C535,C643,L176,L311,L341,L605 SEC.CODE DESCRIPTIONS REFERENCE C863 4302-001081 BATT/CAP250uAH 3.3V J180 GH96-00891A LCD(LCD+EL+LCD Bracket) motor GH31-10004A Vibrator motor W176 GH39-00041A Semirigid Cable GH41-00090A SGH-2488 PCB GH42-00038A ANTENNA GH96-00892A KEYPAD ASS’Y A176 GH71-00020A ANTENNA CLIP Electrical Parts List...
  • Page 20 OPTION SEC.CODE DESCRIPTIONS REFERENCE GH80-10508A SGH-2400 TEST JIG CABLE GH39-30532A SGH-2400 TEST JIG CABLE GH44-30553A SGH-2400 TRAVEL ADAPTOR(China) TA CABLE GH39-10504A SGH-2400 TA CABLE GH44-00040A SGH-2400 CLA GH44-00090A DESK TOP CHARGE SLIM BATTERY 540mAh ( Light Grey ) SLIM BATTERY 540mAh ( Dark Grey ) SLIM BATTERY 540mAh ( BLACK )
  • Page 21 3 Block Diagrams 3-1 Main RF Block Diagrams...
  • Page 22 3-2 Main Base Band Block Diagrams...
  • Page 23 3-3 Travel Adapter Block Diagrams...
  • Page 24 3-4 Desk Top Charger Block Diagrams...

  • Page 27: Schematic Diagrams

    5. Schematic Diagrams 5-1 Top Level VAGC TXPOWER DCSTX1 DCSTX2 GSMTX1 GSMTX2 GSMTX2 GSMTX1 DCSTX2 DCSTX1 TXPOWER VAGC Schematic Diagrams...
  • Page 28 5-2 Radio +3VTX +VBATT +3VX +3VPLL +3VMD +3VLO2 +3VLO1 Schematic Diagrams...
  • Page 29 5-3 Main VCO and Local VCCIF GND4 VPIF GND3 VPRF GND2 VCCRF GND1 Schematic Diagrams...
  • Page 30 5-4 Receiver GND5 GND4 GND3 GND2 GND1 GND4 GND3 GND5 GND2 GND4 GND1 GND3 GND2 GND1 GND5 GND4 GND3 GND2 GND1 GND4 GND3 GND2 GND1 Schematic Diagrams...
  • Page 31 5-5 Modulator & Tx Vco GND4 GND4 GND3 GND3 GND2 GND2 GND1 GND1 Schematic Diagrams...
  • Page 32 5-6 Transmit Output Stage GND9 GND8 GND7 GND6 GND4 GND4 GND3 GND3 GND2 GND2 VAPC GND1 VAPC GND1 Schematic Diagrams...
  • Page 33 5-7 Base Band Block AVCC +3VBB Schematic Diagrams...
  • Page 34 5-8 Memory & SIM Schematic Schematic Diagrams...
  • Page 35 5-9 Vocoder 35 AVD_AMP AVS_AMP AVSUB 69 VDD_PLL 58 AVD_PLL VSS_PLL VDDI-3 AVS_PLL VDDI-2 VDDI-1 VSSI-2 VSSI-1 VDDO-2 VSSO-3 VDDO-1 VSSO-2 VSSO-1 Schematic Diagrams...
  • Page 36 5-10 Interface Connector Schematic Diagrams 5-10...
  • Page 37 5-11 MMI Interface 5-11 Schematic Diagrams...
  • Page 38 5-12 Kernel AVS-3 AVD-2 AVS-2 AVD-1 AVS-1 VDDO-5 VSSE-5 VDDO-4 VSSE-4 VDDO-3 VSSE-3 VDDO-2 VSSE-2 VDDO-1 VSSE-1 VDDI-2 VSSI-2 VDDI-1 VSSI-1 Schematic Diagrams 5-12...
  • Page 39 5-13 Baseband Filters 5-13 Schematic Diagrams...
  • Page 40 5-14 Control Logics Schematic Diagrams 5-14...
  • Page 41 5-15 Power Management 5-15 Schematic Diagrams...
  • Page 42 5-16 Power Supply Units Schematic Diagrams 5-16...