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Samsung SCH-870 Service Manual
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Samsung SCH-870 Service Manual

Samsung SCH-870 Service Manual

Dual mode(cdma+amps) portable telephone
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ELECTRONIC
SERVICE
DUAL MODE TELEPHONE
MENU
SEND
1
. '
4
GHI
7
PQRS
OK /
END/
3
DEF
2
ABC
6
MNO
5
JKL
9
WXYZ
8
TUV
0
OPER
DUAL MODE(CDMA+AMPS)
PORTABLE TELEPHONE
SCH-870
Manual
CONTENTS
1. Specification

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Summary of Contents for Samsung SCH-870

  • Page 1: Table Of Contents

    DUAL MODE(CDMA+AMPS) PORTABLE TELEPHONE ELECTRONIC SCH-870 SERVICE Manual DUAL MODE TELEPHONE CONTENTS 1. Specification 2. Nam Programming 3. Test Commands & Test Procedure List 4. Test Procedure 5. Exploded View & its Parts List 6. Electrical Parts List 7. Block Diagram 8.
  • Page 2 ELECTRONICS Samsung Electronics Co.,Ltd. Dec. 00 Pinted in Korea. Code No.: GH68-01765A...

  • Page 3: Nam Programming

    -store it. NAM1 Dgtl HomeSID System ID for home, current ststus is displayed. 4369 ID number -to change, enter new one. -store it. NAM1 More Prog.? General NAM setup 835235 -to change, press < or > -store it Samsung Electronics...
  • Page 4 -changes the status. -store it. General Slot Index Slot mode index. The higher, the longer sleeping time -to change, enter new one. -store it. General Roundup Timer Roundup Timer. < or > -to change the status. -store it. Samsung Electronics...
  • Page 5 2nd CDMA Home Network ID, current status is displayed Phone number -to change, enter new one. -store it. ————— repeated to SID 20 & NID 20—————————— NAM2 Digital Lockout SID01 1st lock system ID,current status is displayed. ID number -to change, enter new one. -store it. Samsung Electronics...
  • Page 6 NAM2 Analog Auto Reg Auto Registration, current status is displayed < or > -changes the status. -store it. NAM2 Analog ACCOLC Analog Access Overload Class, current status is displayed. class number -to change, enter new one. -store it Samsung Electronics...

  • Page 7: Test Commands & Test Procedure List

    Vocoder CDMA unity gain 41(A9,3,0) T_VOC_FM_HFRX_UPGAIN_I Vocoder FM hfrx upgain 42(AA,1,0) T_DTMFON_I2) Turn on DTMF 43(AB,0,0) T_DTMFOFF_I Turn off DTMF 44(B0,0,0) T_COMPANDORON_I Turn on compandor 45(B1,0,0) T_COMPANDOROF_I Turn off compandor 46(B2,0,0) T_FM_VCLINE_I* Enter FM voice state 47(B3,3,0) T_FM_AUD_GAIN_I FM audio gain Samsung Electronics...
  • Page 8 CDMA RX RAS table( not adjustable ) 96(F6,4,0) T_CH_FLATNESS_I Adjust TX high power RAS 97(F2,4,0) T_FM_TX_PWR_I Adjust FM Power level 2 ~ 7 98(F8,3,0) T_TXRAS_ADJ_BP_ON_I CDMA TX low power RAS table( not adjustable) 99(FC,4,0) T_SND_GAIN_I Mic/Speaker Gain control Samsung Electronics...

  • Page 9: Test Procedure

    CAUTION : The test jig and data cable has a voltage drop of 0.33V at FM Max power output, you’d better set the DC power supply to 3.93V for normal test condition. (Nominal voltage of battery is 3.6V at cellular phone) Samsung Electronics...
  • Page 10 4-3 Test Cable Description for SCH-870 1. Test Cable 2. Test Cable Connections MHC 172 RF CABLE 91.4db Loss for CDMA800 and AMPS BNC CONNECTOR (RF) PLUG CONNECT TO SCH-870 DATA CABLE Dsub 25PIN CONNECTOR (DATA) Samsung Electronics...
  • Page 11 N ; CH NUMBER 990 ≤ N ≤ 1023 FREQUENCY F=0.03 X (N-1023) + 825.00 F ; FREQUENCY 1 ≤ N≤ 799 F=0.03 X N + 870.00 (AMPS/CDMA) 990 ≤ N ≤ 1023 FREQUENCY F=0.03 X (N-1023) + 870.00 Samsung Electronics...
  • Page 12 H. “9 7 * * * “ : Output RF power level is set as power level 2 “* * *” means AGC level and AGC level range is from 0 to 511. I. “1 0 2” : RF Power level control, 2(0~7) means power level . Samsung Electronics...
  • Page 13 H. “8 4” : High Power-mode On I. “9 6 * * * “ : Output RF power level is set max power “* * *” means AGC level and AGC level range is from 000 to 511. Samsung Electronics...
  • Page 14 “0 7” : Carrier On. “1 4” : TX Audio unmute. Set the audio generator output to 1kHz, 3.0Vrms. Measure the Tx voice deviation by using the HPF of 20Hz and the LPF of 99kHz (spec : less than ±12kHz). Samsung Electronics...
  • Page 15 “0 9 0 3 6 3 #” : Set channel to 363. “0 7” : Carrier On. “1 2” : RX Audio unmute. Set the equipment as following. RF frequency : 880.89MHz Input RF level : -80dBm Modulation frequency : 1kHz Frequency deviation : ±8kHz Measure audio AC level. Samsung Electronics...
  • Page 16 Registering: HHP HP8924C. Call : HP8924C HHP. Measure the Gated Power & Time. spec : Gated Power - at least 20dB Gated Time - Rising Time : below 6µs Falling Time : below 6µs Burst Time : below 1.25ms Samsung Electronics...

  • Page 17: Exploded View & Its Parts List

    5. Exploded View & its Parts List 5-1 Main Set Exploded View Samsung Electronics...

  • Page 18: Main Set Parts List

    MPR-SCREW CAP GH72-00672A PMO-EAR PIECE GH72-00283D PCT-WINDOW LCD GH74-01093A PPR-TAPE WINDOW BOHO GH73-00118A RMO-KEY PAD GH72-00489A PMO-KEYPAD DOME GH73-00218A RMO-HOLDER MIC GH73-40704A RMO-CONNECTOR COVER GH73-40705A RMO-MOBILE CAP GH42-00040A ANTENNA 6001-001148 SCREW-MACHINE 4PCS GH43-00095B BATTERY-STD 1000mAh GH75-00223E MEC-HANGER ROPE BLACK Samsung Electronics...

  • Page 19: Electrical Parts List

    CHARGER-DTC850(MEXC) DTC850,SCH-850/8500,AC/DC,- GH68-00157F LABEL(P)-COLOR SCH-670,ART,PI9,100G,SIL GH68-01442A LABEL(R)-MAIN SCH-870,POLYESTER,0.05T,37,28,- GH68-01571A LABEL(P)-SHIPPING SCH-870,CRAFT-PAPER 100g,0.1,250 GH68-01651A MAN(BOOK)-USER MANUAL SCH-811i,-,SPANISH,- GH68-01652A MAN(CARD)-WARRANTY CARD SCH-870,-,-,VEZL,- GH68-11057A LABEL(P)-MS BAR CODE SCH-1900,ART,100X155,T0.1,WHT GH68-30937A LABEL(R)-BARCODE BOX SCH-1011,POLYESTER,61X71,T0.1, GH68-30963A LABEL(R)-BAR CODE SP-D300,PR,34X6.5,T0.1,WHT GH71-00073A NPR-CONTACT ANT SCH-8500,C1720S,T0.1,AU GH71-00169A NPR-GND B/D SCH-850,BEC,0.1,GLD...
  • Page 20 PMO-REAR COVER SCH-850,PC,BLK,-,- GH74-00027A MPR-SHIELD TAPE SCH-800B,CLOTH(SHIELD),30X8XT0.1 GH74-00362A MCT-SHIELD DUPLEX CDMA SCH-8500,GASKET,5X1.5X7,BLK,- GH74-00377A MPR-BUZZER GRILL SCH-850,GAUZE,-,BLK,- GH75-00921A MEC-SHIELD COVER(870) SCH-870,-,PC,-,TRP,-,- GH72-01849A PMO-SHIELD COVER SCH-855,-,PC(LEXAN SP1210R),BLK,- GH74-00362A MCT-SHIELD DUPLEX CDMA SCH-8500,GASKET,5X1.5X7,BLK,- GH92-00898A PBA MAIN-SCH880 LOGIC PART SCH-880,PELE-PHONE,ISRL,LOGIC PART 0405-001035 D202 DIODE-VARACTOR 1SV279,15V,3nA,USC,TP...
  • Page 21 2007-000138 R122 R-CHIP 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R124 R-CHIP 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R125 R-CHIP 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R128 R-CHIP 100ohm,5%,1/16W,DA,TP,1005 2007-000138 R129 R-CHIP 100ohm,5%,1/16W,DA,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 3 3 3 3...
  • Page 22 2007-000148 R216 R-CHIP 10Kohm,5%,1/16W,DA,TP,1005 2007-000148 R220 R-CHIP 10Kohm,5%,1/16W,DA,TP,1005 2007-000148 R226 R-CHIP 10Kohm,5%,1/16W,DA,TP,1005 2007-000148 R249 R-CHIP 10Kohm,5%,1/16W,DA,TP,1005 2007-000148 R250 R-CHIP 10Kohm,5%,1/16W,DA,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 4 4 4 4...
  • Page 23 2007-000162 R160 R-CHIP 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R162 R-CHIP 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R170 R-CHIP 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R183 R-CHIP 100Kohm,5%,1/16W,DA,TP,1005 2007-000162 R184 R-CHIP 100Kohm,5%,1/16W,DA,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 5 5 5 5...
  • Page 24 2007-007142 R222 R-CHIP 10Kohm,1%,1/16W,DA,TP,1005 2007-007309 R223 R-CHIP 12Kohm,1%,1/16W,DA,TP,1005 2007-007311 R102 R-CHIP 22Kohm,1%,1/16W,DA,TP,1005 2007-007311 R201 R-CHIP 22Kohm,1%,1/16W,DA,TP,1005 2007-007318 R103 R-CHIP 1Kohm,1%,1/16W,DA,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 6 6 6 6...
  • Page 25 2203-000254 C213 C-CERAMIC,CHIP 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C215 C-CERAMIC,CHIP 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C217 C-CERAMIC,CHIP 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C219 C-CERAMIC,CHIP 10nF,10%,16V,X7R,TP,1005,- 2203-000254 C223 C-CERAMIC,CHIP 10nF,10%,16V,X7R,TP,1005,- Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 7 7 7 7...
  • Page 26 2203-000438 C206 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C210 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C212 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C214 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C216 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 8 8 8 8...
  • Page 27 2203-001210 C126 C-CERAMIC,CHIP 8.2nF,10%,16V,X7R,TP,1005,- 2203-001405 C260 C-CERAMIC,CHIP 22nF,+80-20%,25V,Y5V,TP,1005 2203-001432 C110 C-CERAMIC,CHIP 47nF,+80-20%,16V,Y5V,TP,1005 2203-001432 C248 C-CERAMIC,CHIP 47nF,+80-20%,16V,Y5V,TP,1005 2203-002494 C251 C-CERAMIC,CHIP 470nF,10%,16V,X7R,TP,2012 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 9 9 9 9...
  • Page 28 C272 C-CERAMIC,CHIP 1.8nF,10%,50V,X7R,TP,1005,- 2203-005496 C208 C-CERAMIC,CHIP 220nF,+80-20%,10V,Y5V,TP,1005 2203-005496 C230 C-CERAMIC,CHIP 220nF,+80-20%,10V,Y5V,TP,1005 2203-005714 C157 C-CERAMIC,CHIP 4700nF,10%,10V,X5R,TP,3216 2203-005714 C160 C-CERAMIC,CHIP 4700nF,10%,10V,X5R,TP,3216 2203-005714 C161 C-CERAMIC,CHIP 4700nF,10%,10V,X5R,TP,3216 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 10...
  • Page 29 NPR-GROUNDING TERMINAL SCH-510,C1720,T0.1,- GH71-00002A GD102 NPR-GROUNDING TERMINAL SCH-510,C1720,T0.1,- GH71-00002A GD103 NPR-GROUNDING TERMINAL SCH-510,C1720,T0.1,- GH71-00002A GD104 NPR-GROUNDING TERMINAL SCH-510,C1720,T0.1,- GH71-00002A GD105 NPR-GROUNDING TERMINAL SCH-510,C1720,T0.1,- Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 11...
  • Page 30 2007-000172 R461 R-CHIP 10ohm,5%,1/16W,DA,TP,1005 2007-000172 R462 R-CHIP 10ohm,5%,1/16W,DA,TP,1005 2007-000174 R323 R-CHIP 47ohm,5%,1/16W,DA,TP,1005 2007-000899 R455 R-CHIP 430Kohm,5%,1/16W,DA,TP,1005 2007-000982 R410 R-CHIP 5.6Kohm,5%,1/16W,DA,TP,1005 Samsung El Samsung Electronics Samsung El Samsung El ectronics ectronics ectronics 6 6 6 6 - - - - 12...
  • Page 31 C312 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C316 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C323 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C421 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C431 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 2203-000233 C465 C-CERAMIC,CHIP 0.1nF,5%,50V,NP0,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 13...
  • Page 32 C341 C-CERAMIC,CHIP 0.01nF,0.5pF,50V,NP0,TP,1005 2203-000278 C488 C-CERAMIC,CHIP 0.01nF,0.5pF,50V,NP0,TP,1005 2203-000330 C318 C-CERAMIC,CHIP 0.012nF,5%,50V,NP0,TP,1005 2203-000330 C430 C-CERAMIC,CHIP 0.012nF,5%,50V,NP0,TP,1005 2203-000438 C317 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- 2203-000438 C322 C-CERAMIC,CHIP 1nF,10%,50V,X7R,TP,1005,- Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 14...
  • Page 33 C412 C-CERAMIC,CHIP 0.051nF,5%,50V,NP0,TP,1005 2203-002968 C422 C-CERAMIC,CHIP 0.051nF,5%,50V,NP0,TP,1005 2203-002968 C432 C-CERAMIC,CHIP 0.051nF,5%,50V,NP0,TP,1005 2203-005061 C439 C-CERAMIC,CHIP 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C481 C-CERAMIC,CHIP 100nF,+80-20%,16V,Y5V,TP,1005 2203-005061 C482 C-CERAMIC,CHIP 100nF,+80-20%,16V,Y5V,TP,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 15...
  • Page 34 L310 INDUCTOR-SMD 15nH,5%,1x0.5x0.5mm 2703-001730 L419 INDUCTOR-SMD 15nH,5%,1x0.5x0.5mm 2703-001733 L314 INDUCTOR-SMD 8.2nH,5%,1x0.5x0.5mm 2703-001798 L426 INDUCTOR-SMD 2.2NH,0.3NH,1.0X0.5X0.5MM 2703-001868 L401 INDUCTOR-SMD 82NH,5%,1005 2703-001868 L408 INDUCTOR-SMD 82NH,5%,1005 Samsung Electronics Samsung Electronics Samsung Electronics Samsung Electronics 6 6 6 6 - - - - 16...
  • Page 35 CONNECTOR-COAXIAL SMC,JACK,100mohm,50ohm,0.5dB 3710-001535 CN401 CONNECTOR-SOCKET 40P,2R,0.5MM,SMD-S,AUF 4709-001080 U304 RF POWER SPLITTER 2WAY,955-979MHz,12dB,-,TP 4709-001201 F407 FREQ-ISOLATOR 824-849MHz,13dB,0.65dB,1.5 GH41-00132A PCB-SCH870 SCH-870,FR-4,8L,2.3,0.8T,118x90mm,- GH96-00943A UNIT-MIC ASS'Y SCH-870,OBG-15L48-C33A, GH73-00218A RMO-HOLDER MIC SCH-850,SI RUBBER,-,BLK,- GH74-00376A MPR-SPONGE LOGIC SCH-850,SRS, PORON,7X7X2 0505-001376 U151 FET-SILICON FDC6329L,N/P,8V,2.5A,-,0.7W,SC-74 0505-001376 U156 FET-SILICON FDC6329L,N/P,8V,2.5A,-,0.7W,SC-74...
  • Page 36 GH74-00510A MPR-TAPE SHIELD(A) SCH-850,CU TAPE,25X43XT0.05,-,- GH74-10772A MPR-TAPE DECORATION SCH-800,TESA4965,16.9x23xT0.2, 2203-002525 C187 C-CERAMIC,CHIP 0.56nF,10%,50V,X7R,TP,1005 GH70-00036A ICT-MAGNETIC SCH-850,MAGNETIC,PI3XT2,- GH07-00058A LCD-SCH-870 UG-12B39-FGHTX-C,SCH-870,-,41, GH74-00304A MPR-TAPE MOTOR SPH-A1100,TAPE,PI11XT0.4,BLK,- GH74-00319A MPR-SPONGE LCD SCH-850,SPONGE,-,BLK,- GH74-00321A MPR-TAPE EAR PIECE SCH-850,FOAM TAPE,5X4XT0.4,BLK,- GH74-00322A MPR-SPONGE EAR PIECE SCH-850,PE SPONGE,8X11XT0.5,BLK,- GH74-00885A MPR-TAPE LCD SCH-880,TAPE,41.2X32XT0.05,TRP,-...
  • Page 37 GH71-00316A NPR-HINGE HOUSING SCH-8500,ZNDC,-,NI PLT,- GH72-00291A PMO-SHAFT HINGE SCH-A100,POM,BLK,-,- GH72-01863A PMO-HINGE CAM SCH-8500,-,POM,BLK,- GH07-00058A ELA ETC-GRAPHIC LCD SCH-850,AIRTOUCH,USA,GRAPHIC LCD GH99-02352A PAA MAIN-PACKING ASS'Y SCH-870,SPRINT,USA,- GA69-30508A BAG-PE PE,T0.06,150X300,- GG69-30517A BAG-LDPE PELD,T0.06,100X260,SP-RM928 GH69-00284A CUSHION-CASE MAIN SCH-8500,PVC,135X195X76.5 GH69-00726A BOX(P)-UNIT MAIN(XAR) SCH-870,IVORY300G,-, GH69-11279A BOX(P)-MASTER(CH)

  • Page 38: Block Diagram

    7. Block Diagram Samsung Electronics...

  • Page 39: Pcb Diagram

    8. PCB Diagram 8-1 Logic Top View Samsung Electronics...
  • Page 40 8-2 Logic Bottom View Samsung Electronics...
  • Page 41 8-3 RF Bottom View Samsung Electronics...

  • Page 42: Schematic Diagrams

    GND4 S3.6 R222 GND5 GND6 R223 GND7 R224 C246 C244 C230 C245 R225 GNDD 11.3K 100NF 100PF 220NF 100NF C101 C102 C103 C104 C105 C106 C107 C108 10NF 100NF 10NF 100NF 10NF 100NF 10NF 10NF IFT3000-48BCCF-TR SMF05.TB PA_ON Samsung Electronics...
  • Page 43 IDLE- ON/OFF 4.7UF R193 R165 R1C1 R1C1 R187 R1C1 C270 1.8NF TCXO_CON CELL_CON SLEEP- ILC7082AIM5-30 C271 1.8NF FDC6329L FDC6329L FDC6329L R194 C186 C269 100NF R180 MODE_SEL C184 C185 560PF C273 100NF 560PF 560PF C272 1.8NF VBAT Q153 DTA144EE/TR Samsung Electronics...
  • Page 44 MHC-173 R321 C361 CELL_RX_LO R322 R323 C362 CELL_TX_LO L301 U304 C301 4.7nH STH-01R 0.75pF L302 L423 BLM11A102SPT L335 TCXO_VAA BLM11A102SPT U307 C371 TCO-5660U1(19.68MHz) L422 BLM11A102SPT C374 R332 10NF 1.2K,1% TRK_LO_ADJ 19.68MHZ C377 10NF RX_IFVCO_OUT RX_IFVCO_VT PLL_CLOCK PLL_EN PLL_DATA Samsung Electronics...
  • Page 45 BLM11A102SPT C454 R427 U405 R417 C429 C451 10NF 10NF D402 HSMS-282C-TR U415 R447 LMV821M7 10K,1% R425 R455 430K R411 10K,1% PDM1 R412 47K,1% MODE_SEL R443 C460 100K,1% 10NF TC4W53FU-TE12L C453 C461 R424 47PF R426 10K,1% C464 10K,1% 10NF Samsung Electronics...

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