Samsung GT-E1252 Service Manual Download Page 41

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SAMSUNG Proprietary-Contents may change without notice

Level 3 Repair

8-17

This Document can not be used without Samsung's authorization

R319

GND

VCC

V_BATT

U302

1B1

2B0

R322

ZD309

C323

C321

ZD305

R311

C320

C325

C324

R320

ZD306

ZD308

R321

SPK301

SPK300

1
2

SPK+

RCV-

RCV+

SPK-

SPK+

C320

R306

R307

R311

R319

R32 0

R321

R322

U30

Summary of Contents for GT-E1252

Page 1: ...nality 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 t...

Page 2: ...orn away Use a thicken twisted wire when you measure level A thicken twisted wire has low resistance therefore error of measurement is few Repair after separate Test Pack and Set because for short danger for example an overcurrent and furious flames of parts etc when you repair board in condition of connecting Test Pack and tuning on Take specially care of soldering because Land of PCB is small an...

Page 3: ...ined your body before you touch semiconductor or parts with semiconductor There are ways that you touch an earthed place or wear static electricity prevention string on wrist Use earthed soldering steel when you connect or disconnect ESD Use soldering removing tool to break static electricity otherwise ESD will be damaged by static electricity Don t unpack until you set up ESD on product Because m...

Page 4: ...MHz Uplink Downlink 880 915 925 960 1710 1785 1805 1880 ARFCN range 0 124 975 1023 512 885 Tx Rx spacing 45MHz 95MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 30dBm 0dBm Power Class 4 max 33dBm 1 max 30dBm Sensitivity 102dBm 100dBm TDMA Mux 8 8 Cell Radius 35Km 2Km ...

Page 5: ...00 5 32 5 2 dBm 6 31 2 dBm 7 29 2 dBm 8 27 2 dBm 9 25 2 dBm 10 23 2 dBm 11 21 2 dBm 12 19 2 dBm 13 17 2 dBm 14 15 2 dBm 15 13 2 dBm 16 11 3 dBm 17 9 3 dBm 18 7 3 dBm 19 5 3 dBm TX Power control level DCS1800 0 29 5 3 dBm 1 28 3 dBm 2 26 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 14 3 dBm 9 12 4 dBm 10 10 4 dBm 11 8 4 dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm ...

Page 6: ... Installation 3 1 This Document can not be used without Samsung s authorization Main Function GSM 900 1800 2 0 QQVGA 65K TFT WINTEK 40 Poly Ringtones Battery 1000mAh GSM Dual Band Band 900 1800 BB PNX 4852 STE Dual SIM Function Mobile Prayer SOS Message India calendar Call time limit ...

Page 7: ...thout notice 4 Exploded View and Parts List 4 1 This Document can not be used without Samsung s authorization 4 1 Cellular phone Exploded View QRE01 QSR89 QBC00 QMW02 QFR01 QAR01 QLC01 QSP01 QCK01 QKP01 QMI01 QMO01 QBA01 QMP01 QME01 QIF01 QCK02 ...

Page 8: ...1 MOTOR DC SCH S369 GH31 00392A QBA01 INNER BATTERY PACK 1000MAH BLK ENG EU GH43 03184A QME01 DOME SHEET GT E1252 GH59 09891A QMW02 PCT WINDOW GTE1252 GH72 60726A QMP01 A S ASSY PBA MAIN INU GH82 05146A QLC01 ASSY LCD 2 01 QQVGA GT_E1252 GH96 04903A QFR01 ASSY CASE FRONT GH98 17627A QBC00 ASSY COVER BATT GH98 17629A QKP01 ASSY KEYPAD GTE1252 INDA GH98 17632A QRE01 ASSY CASE REAR GH98 17633A QIF01 ...

Page 9: ...304 0601 002846 19 217UTD S759 TR8 LED300 0601 002890 99 216UMC 3842S3K TR8 U302 1001 001635 FSA2259UMX TR100 1003 001440 MDC3105LT1 U200 1003 002367 ET4555Y UME200 1108 000370 K5N5629ATB BQ12 PAM100 1201 002931 RF7168 U301 1203 005512 MIC5365 3 3YMT U102 1203 006272 AHK3293A U103 1204 003208 AR1210 UCP200 1205 003945 PNX4852 TH200 1404 001221 NCP15WB473J04RC R311 2007 000138 RC1005J101CS R301 200...

Page 10: ...010071 MCR10EZHFLR100 C215 C313 C319 C322 2203 000386 GRP1555C1H150J C224 C228 2203 000425 GRP1555C1H180J C106 C231 2203 000438 GRP155R71H102K C308 C309 C310 2203 000585 GRP155R71H221KD01E C327 2203 000627 GRM1555C1H220J C302 2203 000679 GRP1555C1H270J C143 2203 000696 GRP1555C1H2R0C C111 C113 C121 C122 2203 000812 GRP1555C1H330J C225 C320 C321 2203 000812 GRP1555C1H330J C105 C234 C236 2203 000995...

Page 11: ...2203 007425 CL10A225KA5LNNC TA301 2404 001377 F980J226MMA L107 2703 002170 CIH05T6N8JNC L122 2703 002200 CIH05T18NJNC L108 2703 002204 CIH05T22NJNC L314 L315 2703 002267 CIH05T4N7SNC L104 L307 L309 2703 002269 CIH05T56NJNC L124 2703 002880 LQG15HS2N0S02D L201 2703 003184 CIG22W4R7MNE L300 2703 003476 LQG15HSR27J02D OSC201 2801 003856 MC 146 32 768KHz 20ppm OSC200 2801 004769 CXC6X260000GHVRP70 F10...

Page 12: ...LOC SEC CODE Description BTC200 3711 007534 BTS237 019 RP SC100 SC101 SC102 GH70 03276A ONBOARD CLIP 4 SC103 SC105 SC106 GH70 03276A ONBOARD CLIP 4 SC107 SC108 SC109 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 ...

Page 13: ...thorization 6 1 Software Download 6 1 1 Pre requisite for Download ǁDownloader Program FDI_Downloader v0 6 Lite For GT E1252 Magnolia exe ǁGT E1252 Mobile Phone ǁJIG BOX GH99 36900A ǁRF Test Cable GH39 00985A ǁJIG Cable GH39 01313A ǁAdapter GH99 38251A ǁBinary files Diagram of Connection PC Mobile Phone with Battery Data Cable ...

Page 14: ... change without notice Level 1 Repair 6 2 This Document can not be used without Samsung s authorization 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 ...

Page 15: ...SAMSUNG Proprietary Contents may change without notice Level 1 Repair 6 3 This Document can not be used without Samsung s authorization 2 Select the Port Baud Rate and Mode ...

Page 16: ...SAMSUNG Proprietary Contents may change without notice Level 1 Repair 6 4 This Document can not be used without Samsung s authorization 3 Select the binary TFS CSC files what you want to download ...

Page 17: ...without notice Level 1 Repair 6 5 This Document can not be used without Samsung s authorization 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 ...

Page 18: ...tice Level 1 Repair 6 6 This Document can not be used without Samsung s authorization 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 ...

Page 19: ...e 7 Level 2 Repair 7 1 This Document can not be used without Samsung s authorization 7 1 Disasembly 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 ...

Page 20: ...ent can not be used without Samsung s authorization 5 Disassemble the LCD Module Be careful not to damage LCD FPCB and LCD 6 Disassemble the LCD FPCB Be careful not to damage LCD FPCB and LCD 7 Disassemble the Reciver Be careful not to damage LCD FPCB and LCD 8 Disassemble the SHIELD CAN ...

Page 21: ...tary Contents may change without notice 7 Level 2 Repair 7 3 This Document can not be used without Samsung s authorization 9 Disassemble the MIC Be careful not to damage MIC FPCB 10 Separate the KEYPAD from the FRONT ...

Page 22: ...een F PCB and Main board will makes faulty Be careful not to make Flux on the Main Board Use the cover of Soldering Jig 1 Soldering 2 points of MIC FPCB pad with PBA 2 Soldering FPCB of the LCD MODULE Be careful not to make a gap between LCD FPCB and Main Board Height of solder should not over 0 2mm 3 Soldering 2 points of RCV FPCB pad with PBA 4 Combine LCD to Main Board Don t push the panel of L...

Page 23: ... 7 Level 2 Repair 7 5 This Document can not be used without Samsung s authorization 5 Assemble the SHIELD CAN 6 INSERT KEYPAD to FRONT 7 INSERT SPEAKER MOTOR to REAR When insert MOTOR use PUSHING JIG CHECK SPEAKER MOTOR insert tightly 8 INSERT PBA TO FRONT ...

Page 24: ...oprietary Contents may change without notice 7 Level 2 Repair 7 6 This Document can not be used without Samsung s authorization 9 COMBINE REAR FROM TOP TO BOTTOM 10 Screw 4 points at the REAR case Torque 1 4 1 6 ...

Page 25: ...evel Shifter Key Connecter FM Module EGSM_TX DCS _TX RF7168 MAIN ANT A 24 17 D 15 0 K5N5629 ATA_AT80 LCD MD 0 7 RCV_P RCV_N SPK EAR PHONE EARMIC_P EARMIC_N SIM2_DATA_LS KEYPAD FSA2259UMX USIM2 VIB_EN MOTOR FM_ANT AR1210 NXP4852 Saw Filter EGSMRX_N EGSMRX_P DCSRX_N DCSRX_P SFR942PY002 NCN4555 SIM2_DATA SIM1_DATA USIM1 RCV SPK Switch AUDIO _SW SP K SP K RCV RCV RCV FM_R FM_L EAR_P EAR_N TORCH_EN TOR...

Page 26: ...e used without Samsung s authorization 8 2 PCB Diagrams 8 2 1 Top BACK C230 C327 DIGIT300 DIGIT301 DIGIT302 DIGIT303 DIGIT304 DIGIT305 DIGIT306 DIGIT307 DIGIT308 DIGIT309 DOWN END INT LCD300 LED300 LED301 LED302 LED303 LED304 LEFT MENU R314 R315 R316 R317 RIGHT SEND SHARP SPK300 STAR UP ZD302 ZD303 ...

Page 27: ... C303 C304 C305 C308 C309 C310 C311 C312 C313 C314 C315 C317 C318 C319 C320 C321 C322 C323 C324 C325 C326 C328 C329 C331 D200 F100 F101 IFC300 L104 L10 7 L108 L109 L111 L122 L123 L124 L125 L126 L200 L201 L202 L300 L301 L302 L303 L304 L305 L306 L307 L308 L309 L314 L315 MAIN_JTAG_PAD MIC300 MOT100 OSC200 OSC201 PAM100 R102 R103 R104 R105 R106 R120 R121 R122 R123 R124 R200 R201 R202 R203 R205 R209 R2...

Page 28: ... 3 Flow Chart of Troubleshooting presetting methods for checking TP GND TP exp Vbatt C108 C109 C212 C308 using Oscilloscope look over the coming out signal Oscilloscope Multi meter Checking the TP test point using Multi meter 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 ...

Page 29: ...Yes Yes No Change the Battery Power On does not work Check the battery voltage is more than 4 2V or less than 3 5V No Change Dome Sheet No Check the related circuit No Check the initial operation Yes L201 VCORE_1 25V 1 25V Yes Yes No Check the Clock at OSC201 pin 1 32KHZ Yes ONKEY_1 _2 2 42 3 09V Resolder OSC201 C211 VGPIO_2 8V H Resolder L201 END Yes ...

Page 30: ...GND_RF H10 GND_VCORE H11 GND_VCORE H12 GND_VCORE G12 ADDR1 G13 GND_VSIM G15 ADDR20 G16 SIM_RST G18 DATA0 G19 DATA8 G2 GND_RF G4 GPIO8 F18 DATA9 F19 DATA1 F2 GND_RF F4 VDD_RF F5 GND_RF G1 RFIE_N G10 GND_VCORE G11 ADDR11 E5 GND_RF E6 GND_RF E7 GND_RF E8 GND_VCORE E9 ADDR9 F1 RFIE_P F15 ADDR18 F16 ADDR4 E13 NOE E14 ADDR2 E15 ADDR19 E16 ADDR3 E18 DATA10 E19 DATA2 E2 GND_RF E4 GND_RF D6 GND_RF D7 GND_R...

Page 31: ...notice Level 3 Repair 8 7 This Document can not be used without Samsung s authorization 8 3 2 Initial Initial Failure Yes MAIN_JTAG_PAD pin 8 RSTON H No Replace UCP200 Yes C217 SYSRST H Change PBA No Yes Check the 16bit data signal memory CE Yes END ...

Page 32: ... D16 ADDR17 D18 DATA11 D19 DATA3 D2 GND_RF D4 GND_RF D5 GND_RF C18 DATA15 C19 DATA4 C2 GND_RF D1 RFID_P D10 ADDR7 D11 NBE0 D12 NRESET_OUT D13 ADDR12 B3 GND_RF B4 VDD_RF B5 XTAL_SHLD B6 XTAL_SHLD B7 XTAL_SHLD B8 XTAL_SHLD B9 GND_VCORE C1 RFIP_N B13 ADDR15 B14 ADDR22 B15 VDD_VMEM B16 ADDR21 B17 DATA12 B18 DATA13 B19 DATA5 B2 GND_RF A6 XTAL_26M_2 A7 XTAL_26M_1 A8 XTAL_SHLD A9 GND_VCORE B1 RFIP_P B10 ...

Page 33: ... notice Level 3 Repair 8 9 This Document can not be used without Samsung s authorization 8 3 3 Charging Part Change UCP200 Yes Resolder or Replace D200 Yes No UCP200 pin J4 R8 JIG_ON L Yes No Abnormal charging part C222 VCHG 4 9V Check U201 Yes END ...

Page 34: ...RF D1 RFID_P D10 ADDR7 D11 NBE0 D12 NRESET_OUT D13 ADDR12 B3 GND_RF B4 VDD_RF B5 XTAL_SHLD B6 XTAL_SHLD B7 XTAL_SHLD B8 XTAL_SHLD B9 GND_VCORE C1 RFIP_N B13 ADDR15 B14 ADDR22 B15 VDD_VMEM B16 ADDR21 B17 DATA12 B18 DATA13 B19 DATA5 B2 GND_RF A6 XTAL_26M_2 A7 XTAL_26M_1 A8 XTAL_SHLD A9 GND_VCORE B1 RFIP_P B10 ADDR8 B11 NWE0 B12 NCS1 A16 ADDR14 A17 DATA6 A18 DATA7 A19 DATA14 A2 RFOL A3 GND_RF A4 VDD_...

Page 35: ... Samsung s authorization 8 3 4 Sim 1 Part Phone can t access SIM Card Yes SIM201 pin 1 4 H Resolder C234 R211 No Yes After Power ON Check SIM1_CLK Signal on pin 3 of SIM201 in a few second Resolder or Replace SIM201 No Yes After SIM card insert SIM201 pin 2 H SIM1_RST Replace PBA No Yes Check the SIM Card Yes END ...

Page 36: ...n t access SIM Card Yes SIM202 pin 1 4 H Resolder C236 R214 No Yes After Power ON Check SIM2_CLK Signal on pin 3 of SIM202 in a few second Resolder or Replace SIM202 U200 No Yes After SIM2 card insert SIM202 pin 2 H SIM2_RST Resolder U200 If don t work Replace PBA No Yes After SIM card insert SIM202 pin 2 H SIM2_RST Replace PBA No Yes Check the SIM Card Yes END ...

Page 37: ... C239 SIM_I O 8 9 SIM_RST 7 SIM_VCC 5 VBAT 3 VDD 1 _STOP NC 4 NC 6 NC 12 NC 16 NC 18 19 NC RST 14 11 SIM_CLK 13 CLK GND 10 17 GND 15 I O MOD_VCC 2 C240 U200 C238 V_BATT VANA_2 85V SIM2_CLK_LS SIM2_DATA_LS SIM2_RST_LS SIM2_CLK SIM2_RST SIM2_DATA VSIM2_MOD VSIM2_EN SIM1_RST SIM1_CLK SIM1_DATA SIM2_RST SIM2_CLK SIM2_DATA C102 C103 C120 C217 C219 C220 C222 C223 C231 C234 C236 C238 C239 C240 C241 C300 ...

Page 38: ... used without Samsung s authorization 8 3 6 Microphone Part Resolder R312 R313 or Replace TA301 Check MIC Connection END Check the MIC Microphone does not work Replace the MIC No No Yes Yes Yes Yes No Resolder L306 L307 L308 L309 L314 L315 C313 C315 C317 C319 C322 R323 TA301 MIC_BIAS H at Mic Active ...

Page 39: ...9 ZD304 R306 R302 L305 C310 R305 L303 VCHG_5V C305 C300 C308 C329 L300 R300 V_BATT R301 C326 R308 R304 JIG_ON UART1_TD_J EAR_N EAR_SW EAR_MIC_N EAR_MIC_P EAR_SW_REF UART1_RD AUX_DET EAR_P VCM_OUT EAR_ANT UART1_TD UART1_RD_J UART0_TD UART0_RD C313 ZD301 C322 L308 C319 L314 L315 ZD300 MIC_BIAS R312 C317 L309 R313 C318 TA301 L306 C315 R323 C314 L307 MIC300 MIC_P MIC_N C141 C313 C319 C322 L307 L309 L3...

Page 40: ...pair 8 16 This Document can not be used without Samsung s authorization 8 3 7 Speaker Part Speaker does not work Replace U302 Change Speaker Module Change Receiver Module Yes No Is Speaker working END Yes No Does not work Ringtone Yes No Yes Does not work Voice call ...

Page 41: ...Samsung s authorization R319 2B1 6 GND 4 S1 8 S2 1 VCC V_BATT U302 3 1A 1B0 5 2 1B1 9 2A 2B0 7 10 R322 ZD309 C323 C321 ZD305 R311 C320 C325 C324 R320 ZD306 ZD308 R321 SPK301 SPK300 1 1 2 2 RCV_N AUDIO_SW RCV_P SPK SPK RCV RCV RCV RCV SPK SPK C320 C321 C323 R306 R307 R311 R319 R320 R321 R322 U302 ZD200 ZD308 ZD309 ...

Page 42: ...thout Samsung s authorization 8 3 8 Key Data Input Check Initial Operation Yes Change Domesheet or Change Side Key SIM Change Key or Torch Key When you pushed all of the Key does the key have tension No Yes All of the key doesn t work except POWER ON KEY Yes Change Keypad Dome Sheet or Replace the PBA No END ...

Page 43: ...D303 1 2 3 4 5 6 C328 SHARP 1 2 LED301 KEY_LED_3 3V 1 2 STAR LED302 3 4 5 6 7 1 2 2 DIGIT302 1 2 TAC301 RIGHT 1 DIGIT301 1 2 1 2 DIGIT306 ZD311 1 2 DIGIT309 1 2 END ZD310 SEND 1 2 1 2 INT 1 2 DIGIT305 1 2 LEFT 1 2 DOWN R314 R317 2 DIGIT300 1 DIGIT307 1 2 C327 DIGIT304 1 2 R315 R316 LED304 KEYOUT 3 KEYIO 1 KEYOUT 3 KEYIO 2 KEYOUT 0 KEYIN 0 KEYOUT 2 KEYOUT 1 KEYIN 1 KEYIN 2 KEYIO 0 KEYIO 2 ONKEY_2 O...

Page 44: ...his Document can not be used without Samsung s authorization 8 3 9 Back Light for Color Main LCD Back light does not work Yes Is LCD Contrast set on high level in the Menu No Set LCD Contrast on high level Resolder UCP200 or Repalce LCD Module Yes No Is R102 LCD_BL_EN H Yes END ...

Page 45: ...7 GND_RF E8 GND_VCORE E9 ADDR9 F1 RFIE_P F15 ADDR18 F16 ADDR4 E13 NOE E14 ADDR2 E15 ADDR19 E16 ADDR3 E18 DATA10 E19 DATA2 E2 GND_RF E4 GND_RF D6 GND_RF D7 GND_RF D8 GND_VCORE D9 ADDR10 E1 RFID_N E10 ADDR6 E11 ADDR5 E12 NBE1 D14 ADDR13 D15 VDD_VMEM D16 ADDR17 D18 DATA11 D19 DATA3 D2 GND_RF D4 GND_RF D5 GND_RF C18 DATA15 C19 DATA4 C2 GND_RF D1 RFID_P D10 ADDR7 D11 NBE0 D12 NRESET_OUT D13 ADDR12 B3 G...

Page 46: ...Repair 8 22 This Document can not be used without Samsung s authorization 8 3 10 Key Back Light Main Key LED does not work Yes No Resolder doesn t work LED check LED301 302 303 304 does work or not Replace UCP200 or Change PBA Yes No Is C230 KEY_LED_3 3V H Yes END ...

Page 47: ...5 6 7 1 2 2 DIGIT302 1 2 TAC301 RIGHT 1 DIGIT301 1 2 1 2 DIGIT306 ZD311 1 2 DIGIT309 1 2 END ZD310 SEND 1 2 1 2 INT 1 2 DIGIT305 1 2 LEFT 1 2 DOWN R314 R317 2 DIGIT300 1 DIGIT307 1 2 C327 DIGIT304 1 2 R315 R316 LED304 KEYOUT 3 KEYIO 1 KEYOUT 3 KEYIO 2 KEYOUT 0 KEYIN 0 KEYOUT 2 KEYOUT 1 KEYIN 1 KEYIN 2 KEYIO 0 KEYIO 2 ONKEY_2 ONKEY_1 KEYIO 2 KEYOUT 2 C230 DIGIT301 DIGIT302 DIGIT303 DIGIT304 DIGIT30...

Page 48: ...thout notice Level 3 Repair 8 24 This Document can not be used without Samsung s authorization presetting 8960 Rx setting 1 Active Cell select GSM 2 Connetion Type select Auto 3 BCH Parameter select measuring band DCS or EGSM 4 Cell power 60dBm ...

Page 49: ...evel 3 Repair 8 25 This Document can not be used without Samsung s authorization Tx setting After setting 8960 EGSM DCS 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 ...

Page 50: ...ice Level 3 Repair 8 26 This Document can not be used without Samsung s authorization 8960 spectrum analyzer down up at picture spectrum analyzer testing method the way using an Osciliscope 8960 connect using RF Cable between 8960 RF Connector in board ...

Page 51: ...No Yes Check UCP200 END R103 C121 L104 R105 C113 C119 C143 C110 C112 C139 RFIN_LB 18 RX0 17 RX1 8 TX_EN VBATT 11 VRAMP 7 13 20 GND 9 GPCTRL0 10 GPCTRL1 12 NC 16 NC NC 19 2 RFIN_HB 4 21 GND 22 GND 23 24 GND 14 GND GND 3 GND 5 6 GND GND RF7168 ANT 15 GND 1 GND C114 R124 L124 C109 C108 C105 R104 RFS100 A 2 1 C 3 G G 4 L108 C142 C111 L107 9 OUT1 OUT2 6 7 OUT2 F100 G 2 3 G 5 G G 10 1 IN1 IN2 4 OUT1 8 R...

Page 52: ...Resolder UCP200 Check VBAT or PAM control signal No Change or Resolder PAM100 Yes PAM100 Pin15 30dBm TX ON 5Level Check PAM100 pin10 H pin8 H pin9 L PAM100 Pin15 30dBm UCP200 PinA2 30dBm PAM100 Pin4 2dBm Check ANT Switch control circuit Resolder or Change R103 C121 UCP200 pin E1 D1 G1 F1 0 2Vp_p Yes Check PAM100 Pin 7 8 9 10 11 OK Resolder or Change PAM100 Check UCP200 C206 C207 C210 C211 No No No...

Page 53: ... A 2 1 C 3 G G 4 L108 C142 C111 L107 9 OUT1 OUT2 6 7 OUT2 F100 G 2 3 G 5 G G 10 1 IN1 IN2 4 OUT1 8 R106 L109 C122 DCSRX_P DCSRX_N EGSMRX_P EGSMRX_N V_BATT RAMP PON_PAM DCS_TX EGSM_TX STAND_BY BAND_SEL VRF_2 85V C209 VSIM1_3 0V VCORE_1 25V C208 VGPIO_2 8V VANA_2 85V C211 C207 C206 VPERM_3 0V C210 C105 C108 C109 C110 C111 C112 C113 C114 C119 C121 C122 C139 C142 C143 C202 C203 C204 C205 C206 C207 C20...

Page 54: ... pin10 H pin8 L pin9 L R103 C121 L104 R105 C113 C119 C143 C110 C112 C139 RFIN_LB 18 RX0 17 RX1 8 TX_EN VBATT 11 VRAMP 7 13 20 GND 9 GPCTRL0 10 GPCTRL1 12 NC 16 NC NC 19 2 RFIN_HB 4 21 GND 22 GND 23 24 GND 14 GND GND 3 GND 5 6 GND GND RF7168 ANT 15 GND 1 GND C114 R124 L124 C109 C108 C105 R104 RFS100 A 2 1 C 3 G G 4 L108 C142 C111 L107 9 OUT1 OUT2 6 7 OUT2 F100 G 2 3 G 5 G G 10 1 IN1 IN2 4 OUT1 8 R1...

Page 55: ... UCP200 Check VBAT or PAM control signal No Change or Resolder PAM100 Yes PAM100 Pin15 25 dBm TX ON 5Level Check PAM100 pin10 H pin8 H pin9 H PAM100 Pin15 25 dBm UCP200 PinA1 25 dBm PAM100 Pin2 2dBm Check ANT Switch control circuit Resolder or Change R104 R105 R106 C122 UCP200 pin E1 D1 G1 F1 0 2Vp_p Yes Check PAM100 Pin 7 8 9 10 11 OK Resolder or Change PAM100 Check UCP200 C206 C207 C210 C211 No ...

Page 56: ... A 2 1 C 3 G G 4 L108 C142 C111 L107 9 OUT1 OUT2 6 7 OUT2 F100 G 2 3 G 5 G G 10 1 IN1 IN2 4 OUT1 8 R106 L109 C122 DCSRX_P DCSRX_N EGSMRX_P EGSMRX_N V_BATT RAMP PON_PAM DCS_TX EGSM_TX STAND_BY BAND_SEL VRF_2 85V C209 VSIM1_3 0V VCORE_1 25V C208 VGPIO_2 8V VANA_2 85V C211 C207 C206 VPERM_3 0V C210 C105 C108 C109 C110 C111 C112 C113 C114 C119 C121 C122 C139 C142 C143 C202 C203 C204 C205 C206 C207 C20...

Page 57: ...e used without Samsung s authorization 8 3 17 FM RADIO part FM RADIO Earphone mode does not work Yes SNR 50dBm Resolder or replace U103 C102 C103 C106 L123 R120 R121 No Yes Check for the Sensitivity of FM RADIO Earphone 100 Resolder C308 C309 C310 L303 L304 L305 R308 R309 No Yes Check UCP200 Yes END ...

Page 58: ...0 VCCIO 11 C106 C103 C102 VGPIO_2 8V R120 C136 EAR_ANT FM_R FM_L FM_SCL FM_SDA 32KHz_DIGIT C303 L302 NC 21 22 NC 23 NC NC 24 25 NC NC 26 NC 27 20 3 3 4 4 5 5 6 6 7 7 8 8 9 9 13 14 14 15 15 16 16 17 17 18 18 19 19 2 2 20 IFC300 1 1 10 10 11 11 12 12 13 R307 C301 R309 R303 C302 L304 C304 3 4 5 6 ZD307 1 2 L301 C309 ZD304 R306 R302 L305 C310 R305 L303 VCHG_5V C305 C300 C308 C329 L300 R300 V_BATT R301...

Page 59: ...ts may change without notice Level 3 Repair 8 35 This Document can not be used without Samsung s authorization 8 4 Service Schematics NC Point Top View NC UME200 1 2 3 4 5 6 7 8 9 10 A A B B C C D D E E F F 1 2 3 4 5 6 7 8 9 10 ...

Page 60: ...PSK Binary Phase Shift Keying CA Conditional Access CDM Code Division Multiplexing C I Carrier to Interference DMB Digital Multimedia Broadcasting EN European Standard ES Elementary Stream ETSI European Telecommunications Standards Institute MPEG Moving Picture Experts Group PN Pseudo random Noise PS Pilot Symbol QPSK Quadrature Phase Shift Keying RS Reed Solomon SI Service Information TDM Time Di...

Page 61: ...2 9 NC C400 U102 7 D1 D2 6 5 VGPIO_2 8V R106 VGPIO_2 8V 3 JIG_REG 11 10 RTS RXD 7 9 TXD 2 VBUS V_BATT 1 12 ANT CHARGE_OK 5 8 CTS 4 D 6 D GND R120 MAIN VDD_HV_D G1 VDD_D G2 CLK_REQ_OUT_2 G3 VDD_IO_B G4 UART_RXD G5 VDD_IO_A G6 CLK_REQ_IN_2 G7 VDD_CLD E7 CONFIG_2 F1 CONFIG_3 F2 LP_CLK F3 AF_PRG F4 UART_TXD F5 HOST_WAKEUP F6 CLK_REQ_IN_1 F7 REF_CLK_IN D6 VDD_CL D7 PCM_B E1 CONFIG_1 E2 UART_CTS E3 VSS_...

Page 62: ... NRESET_OUT D13 ADDR12 B3 GND_RF B4 VDD_RF B5 XTAL_SHLD B6 XTAL_SHLD B7 XTAL_SHLD B8 XTAL_SHLD B9 GND_VCORE C1 RFIP_N B13 ADDR15 B14 ADDR22 B15 VDD_VMEM B16 ADDR21 B17 DATA12 B18 DATA13 B19 DATA5 B2 GND_RF A6 XTAL_26M_2 A7 XTAL_26M_1 A8 XTAL_SHLD A9 GND_VCORE B1 RFIP_P B10 ADDR8 B11 NWE0 B12 NCS1 A16 ADDR14 A17 DATA6 A18 DATA7 A19 DATA14 A2 RFOL A3 GND_RF A4 VDD_RF A5 XTAL_SHLD 2 NC A1 RFOH A10 AD...

Page 63: ...BATT END R320 C311 R313 ZD310 C318 SEND 1 2 R300 1 2 TA301 INT 1 2 DIGIT305 L306 V_BATT 1 2 V_BATT LEFT 1 2 DOWN C315 R323 ZD306 R301 R314 R317 2 ZD308 DIGIT300 1 R318 DIGIT307 1 2 C327 C326 C314 L307 R308 R321 DIGIT304 1 2 R304 6 8 18 7 28 5 3 30 29 14 15 16 17 19 1 32 2 31 23 24 25 26 27 11 12 13 4 9 10 20 21 22 SPK301 LCD300 MIC300 SPK300 1 1 2 2 R315 R316 LED304 A 20 MD 7 MD 6 MD 5 MD 3 MD 4 L...

Page 64: ...d or domestic law Samsung Electronics Co Ltd 2010 08 Rev 1 0 ⓒ Country Web Site North America service samsungportal com Latin America latin samsungportal com CIS cis samsungportal com Europe europe samsungportal com China china samsungportal com Asia asia samsungportal com Mideast Africa mea samsungportal com GSPN Global Service Partner Network ...

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Summary of Contents for GT-E1252

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Samsung GT-E1252, Service Manual

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Summary of Contents for GT-E1252

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