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Samsung GT-E1252 Service Manual
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Samsung GT-E1252 Service Manual

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GSM TELEPHONE
GSM TELEPHONE
GT-E1252
3. Product Function
7. Disassembly and Assembly
Instructions
9. Reference data
Notice :
All functionality, features, specifications and other
product information provided in this document inclu
ding, but not limited to, the benefits, design, pricing,
components, performance, availability, and capabiliti
- es of the product are subject to change without
notice or obligation. Samsung reserves the right to
make changes to this document and the product
described herein, at anytime, without obligation on
Samsung to provide notification of such change.
CONTENTS

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Summary of Contents for Samsung GT-E1252

  • Page 1: Table Of Contents

    - es of the product are subject to change without notice or obligation. Samsung reserves the right to make changes to this document and the product described herein, at anytime, without obligation on...

  • Page 2: Safety Precautions

    ― Don't use as you pleases after change other material than replacement registered on SEC System. Otherwise engineer in charge isn't charged with problem that you don't keep this rules. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 3 ― You must maintain electric contact between ESD and place due to be set up until ESD is connected completely to the proper place or a circuit board. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Specification

    (max +33dBm) (max +30dBm) Sensit ivit y - 102dBm - 100d Bm T DM A Mu x Cell Rad ius 35 Km 2 Km 2- 1 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 15±2 dBm 10±4 dBm 13±2 dBm 8±4 dBm 11±3 dBm 6±4 dBm 9±3 dBm 4±4 dBm 7±3 dBm 2±5 dBm 0±5 dBm 5±3 dBm 2- 2 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 6 • Band : 900 / 1800 • BB : PNX 4852 (STE) • Dual SIM Function • Mobile Prayer • SOS Message • India calendar • Call time limit SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 7: Exploded View And Parts List

    4. Exploded View and Parts List 4-1. Cellular phone Exploded View QMW02 QFR01 QKP01 QAR01 QME01 QLC01 QMP01 QSP01 QMI01 QMO01 QCK02 QIF01 QCK01 QRE01 QSR89 QBA01 QBC00 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 8 QBC00 ASSY COVER-BATT GH98-17629A QKP01 ASSY KEYPAD-GTE1252(INDA) GH98-17632A QRE01 ASSY CASE-REAR GH98-17633A QIF01 ASSY COVER-IF GH98-17628A QCK02 ASSY KEY-TORCH GH98-17630A QCK01 ASSY KEY-SIM SW GH98-17631A SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 9: Main Electrical Parts List

    RC1005J221CS R300,R305,R312,R313 2007-000141 RC1005J222CS C137,C138 2007-000143 RC1005J472CS R102 2007-000147 RC1005J822CS R200,R201,R323 2007-000148 RC1005J103CS R123,R318 2007-000157 RC1005J473CS R238,R241,R242,R302 2007-000172 RC1005J100CS R306,R307,R310 2007-000172 RC1005J100CS R308,R309 2007-000173 RC1005J220CS SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 10 GRP1555C1H560JD01E C200,C238,C240 2203-002709 C1005Y5V1C104ZT C108,C112,C114,C119 2203-005281 GRP1555C1H1R5BZ01E C142 2203-005281 GRP1555C1H1R5BZ01E C223 2203-005344 GRM155R71E223KA61D C101,C109,C136,C203 2203-006048 GRM155R71A104K C204,C205,C226,C235 2203-006048 GRM155R71A104K C237,C244,C301,C303 2203-006048 GRM155R71A104K C315,C317,C329 2203-006048 GRM155R71A104K SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 BLM15AG121SN1D L306,L308 3301-001729 BLM15AG102SN1D L301,L302,L303,L304 3301-001885 BLM15HD182SN1D L305 3301-001885 BLM15HD182SN1D L123 3301-001970 BLM15BA330SN1 TAC301,TAC302 3404-001152 LS10N2-T RFS100 3705-001731 KMS-560-002-BEF SIM201,SIM202 3709-001488 5000-6P-1.5S IFC300 3710-002683 HY20-AB0310 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 GH70-03276A ONBOARD-CLIP-4 R244 GH80-03320A PB-SHORT-1005 R233 GH80-03321A PB-SHORT-0603 Please consult the GSPN website (Samsung Portal) for the most recent version of the product's part list. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Level 1 Repair

    GT-E1252 Mobile Phone JIG BOX (GH99-36900A) RF Test Cable (GH39-00985A) JIG Cable (GH39-01313A) Adapter (GH99-38251A) Binary files - Diagram of Connection: Data Cable Mobile Phone(with Battery) SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 Level 1 Repair 6-1-2. S/W Download Process 1. Load the binary download program by executing the " " FDI_Downloader v0.6 Lite For GT-E1252(Magnolia).exe SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 Level 1 Repair 2. Select the Port, Baud Rate and Mode. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 Level 1 Repair 3. Select the binary, TFS, CSC files what you want to download SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 4. Press the "Start" button and connect the Handset. Press "End Key" of the phone for a while And then, you can see the sentence "Now you can do DOWNLOAD!" SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 5. Press the "Download" button. Now download program will start binary downloading. 6. After download, Confirm the downloaded version name and etc. : *#1234# Full Reset : *2767*3855# SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 1. Unscrew 4 points at the REAR case. 2. DIsassemble the REAR as below sequence. 3. Disassemble the PBA. Be careful with hooks. 4. Separate the PBA from the FRONT. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 Be careful not to damage LCD FPCB and LCD 7. Disassemble the Reciver. 8. Disassemble the SHIELD CAN. Be careful not to damage LCD FPCB and LCD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 7. Level 2 Repair 9. Disassemble the MIC. 10. Separate the KEYPAD from the FRONT. Be careful not to damage MIC FPCB SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 4. Combine LCD to Main Board. 3. Soldering 2 points of RCV FPCB pad with PBA. Don't push the panel of LCD while combine the LCD SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 6. INSERT KEYPAD to FRONT. 7. INSERT SPEAKER, MOTOR to REAR. When insert MOTOR, use PUSHING JIG. 8. INSERT PBA TO FRONT. CHECK SPEAKER, MOTOR insert tightly. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 24 7. Level 2 Repair 10. Screw 4 points at the REAR case. 9. COMBINE REAR FROM TOP TO BOTTOM. Torque : 1.4~1.6 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 SIM2_DATA Level RCV- Shifter FSA2259UMX USIM2 NCN4555 FM_R FM_ANT SIM1_DATA Module FM_L USIM1 AR1210 EARMIC_P / EARMIC_N TORCH_EN EAR_P / EAR_N TORCH NXP4852 EAR PHONE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 26 8-2. PCB Diagrams 8-2-1. Top LED300 ZD302 LCD300 MENU BACK SEND DOWN DIGIT303 DIGIT301 DIGIT302 DIGIT304 DIGIT306 DIGIT305 DIGIT307 DIGIT309 DIGIT308 STAR SHARP C327 DIGIT300 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 L125 F100 C111 R105 R104 C113 C122 L104 R106 PAM100 R124 C225 C109 R103 C110 MOT100 SC102 C322 L307 L309 ZD300 ZD301 L124 C143 BOTHHOLE30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 28: Chart Of Troubleshooting

    - EX) to look up the TP, shunt Cap. - if checking the GND, you can listen "beep" if checking the Signal, you can't listen it. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 Check the Clock at Resolder OSC201 OSC201 pin 1=32KHZ C211[VGPIO_2.8V] Check the related circuit = "H"? L201[VCORE_1.25V] Resolder L201 = 1.25V? Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 30 BATT_GND KEY_LED_3.3V C230 C200 OSC201 R236 R237 C228 R209 TA301 C227 R239 C216 C203 C212 C211 C209 R205 C210 C206 TH200 C207 C202 L201 C213 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Level 3 Repair 8-3-2. Initial Initial Failure MAIN_JTAG_PAD pin 8[RSTON] Replace UCP200 ="H"? C217[SYSRST] Change PBA = "H" ? Check the 16bit data signal & memory CE SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 C219 C220 A19RC A(21) A20RC R235 A(22) A21RC A(23) A22RC A(24) C200 A23R R236 CREC R235 NCSRAM CSNC R236 R237 LBNC R237 UBNC TA301 C221 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 33 Level 3 Repair 8-3-3. Charging Part Abnormal charging part C222[VCHG] > 4.9V Change UCP200 UCP200 pin J4, R8[JIG_ON] Resolder or Replace D200 ="L"? Check U201 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 R313 L308 C211 C209 R205 C210 C206 R245 TH200 C207 C202 L201 C126 C128 C213 C124 C134 ZD311 C205 C214 BT_DO C204 BT_INT TP100 8-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Resolder or Replace SIM201 pin 3 of SIM201 in a few second After SIM card insert, Replace PBA SIM201 pin 2 = "H[SIM1_RST]"? Check the SIM Card 8-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 Resolder U200, If don't work, Replace PBA SIM202 pin 2 = "H[SIM2_RST]"? After SIM card insert, Replace PBA SIM202 pin 2 = "H[SIM2_RST]"? Check the SIM Card 8-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 SIM2_RST SIM2_DATA SIM2_CLK R211 SIM201 C236 SIM1_RST SIM1_DATA SIM1_CLK C237 C234 C235 SC108 C236 R214 C300 R301 R202 C223 C217 C302 R243 TP216 U201 8-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Resolder R312, R313 TA301[MIC_BIAS] = "H" at Mic Active ? Replace TA301 Resolder L306,L307,L308,L309,L314,L315 Check MIC Connection C313,C315,C317,C319,C322,R323 Check the MIC Replace the MIC 8-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 C319 MOT100 OSC201 C322 L307 L309 C228 R209 C314 R312 TA301 ZD300 ZD301 C315 C227 C317 L306 C203 C212 C318 R313 L308 C211 C209 8-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 Speaker does not work Does not work Voice call ? Change Receiver Module Does not work Ringtone ? Change Speaker Module Is Speaker working? Replace U302 8-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 C321 U302 RCV- ZD308 ZD309 C323 R321 SPK- R322 SPK+ SPK301 ZD305 ZD306 C324 C325 R32 0 R321 R322 C320 R319 R311 R307 R306 8-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 Change Side Key(SIM Change Key or Torch Key) Change Keypad, Dome Sheet All of the key doesn't work except POWER ON KEY ? Replace the PBA 8-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 KEY_LED_3.3V ZD303 R314 R315 R316 R317 LED301 LED302 LED303 LED304 TAC301 TAC302 KEYIO(2) KEYOUT(3) KEYIO(2) KEYOUT(2) 5 6 7 5 6 7 ZD310 ZD311 8-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Is LCD Contrast set on high Set LCD Contrast on high level level in the Menu? Resolder UCP200 Is R102[LCD_BL_EN] "H" ? Repalce LCD Module 8-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 R205 LCD_BL(1) C210 C206 TH200 C207 C202 MD(7) MD(6) L201 MD(5) MD(4) MD(3) MD(2) MD(1) MD(0) C213 LCD_RESET A(20) ZD311 C205 C214 LCD_CS C204 8-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Main Key LED does not work check LED301,302,303,304 Resolder doesn't work LED does work or not. Is C230[KEY_LED_3.3V] "H" ? Replace UCP200 Change PBA 8-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 TAC301 TAC302 KEYOUT(3) KEYOUT(2) KEYIO(2) KEYIO(2) 5 6 7 5 6 7 ZD310 ZD311 DOWN DIGIT303 DIGIT301 DIGIT302 DIGIT304 DIGIT306 DIGIT305 DIGIT307 DIGIT309 DIGIT308 8-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 : select GSM 2. Connetion Type : select Auto 3. BCH Parameter : select measuring band (DCS or EGSM) 4. Cell power : -60dBm 8-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 1. After setting, prepare the call setup Display 2. Using an Originate Call, make a call. 3. Confirm the display "connected" 4. start the measuring 8-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 - spectrum analyzer : testing method = the way using an Osciliscope - 8960 : connect using RF Cable between 8960 & RF Connector in board. 8-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 BAND_SEL GPCTRL0 OUT2 C113 EGSMRX_N RF7168 PON_PAM TX_EN L108 RAMP VRAMP C119 EGSMRX_P R103 C121 EGSM_TX L109 R104 C122 DCS_TX R105 R106 L124 C143 8-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 Pin 7,8,9,10,11 OK? Check VBAT or PAM control signal UCP200 pin UCP200 pin Check UCP200, E1,D1,G1,F1 W12,W13,W14,W15 C206,C207,C210,C211 0.2Vp_p 2.8V Resolder UCP200 Check UCP200 8-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 DCS_TX R105 R106 C208 C242 R201 L200 R217 C224 C105 RFS100 C114 C119 C139 C108 C112 C142 C244 L202 OSC200 R233 C121 R234 L109 8-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 BAND_SEL GPCTRL0 OUT2 C113 EGSMRX_N RF7168 PON_PAM TX_EN L108 RAMP VRAMP C119 EGSMRX_P R103 C121 EGSM_TX L109 R104 C122 DCS_TX R105 R106 L124 C143 8-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 Pin 7,8,9,10,11 OK? Check VBAT or PAM control signal UCP200 pin UCP200 pin Check UCP200, E1,D1,G1,F1 W12,W13,W14,W15 C206,C207,C210,C211 0.2Vp_p 2.8V Resolder UCP200 Check UCP200 8-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 DCS_TX R105 R106 C208 C242 R201 L200 R217 C224 C105 RFS100 C114 C119 C139 C108 C112 C142 C244 L202 OSC200 R233 C121 R234 L109 8-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 U103, C102, C103, C106, L123, R120, R121 Check for the Sensitivity of Resolder C308, C309, C310 , L303, L304, L305 FM RADIO Earphone , R308,R309 ≤ -100 Check UCP200 8-33 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 UART0_RD R307 19 19 NC 21 UART1_RD_J UART1_TD_J NC 24 C326 L303 R308 NC 26 C329 EAR_P NC 27 L304 VCM_OUT L305 EAR_N R309 8-34 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Level 3 Repair 8-4. Service Schematics - NC Point(Top View) : NC UME200 8-35 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 ― QPSK: Quadrature Phase Shift Keying ― RS : Reed-Solomon ― SI : Service Information ― TDM : Time Division Multiplexing ― TS : Transport Stream SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 61 THIS DOCUM E NT CONTAINS C O NFIDE NTI AL PROPRIETARY I NFOR MATION THAT I S SAMSUNG EL E C TRONICS CO’ S PR OPER TY. DO NOT DISCLOS E TO OR DU P LIC ATE FO R O THERS EXCEPT AS AUTHORIZED BY SAM S U NG .
  • Page 62 THIS DOCUM E NT CONTAINS C O NFIDE NTI AL PROPRIETARY I NFOR MATION THAT I S SAMSUNG EL E C TRONICS CO’ S PR OPER TY. DO NOT DISCLOS E TO OR DU P LIC ATE FO R O THERS EXCEPT AS AUTHORIZED BY SAM S U NG .
  • Page 63 THIS DOCUM E NT CONTAINS C O NFIDE NTI AL PROPRIETARY I NFOR MATION THAT I S SAMSUNG EL E C TRONICS CO’ S PR OPER TY. DO NOT DISCLOS E TO OR DU P LIC ATE FO R O THERS EXCEPT AS AUTHORIZED BY SAM S U NG .
  • Page 64 China china.samsungportal.com Asia asia.samsungportal.com Mideast & Africa mea.samsungportal.com This Service Manual is a property of Samsung Electronics Co.,Ltd. Samsung Electronics Co.,Ltd. ⓒ Any unauthorized use of Manual can be punished under applicable International and/or domestic law. 2010. 08. Rev.1.0...