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Samsung SGH-E350 Service Manual
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Samsung SGH-E350 Service Manual

Samsung SGH-E350 Service Manual

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SERVICE
GSM TELEPHONE
GSM TELEPHONE
SGH-E350
Manual
1.
2.
3.
Exploded Views and Parts List
4.
5.
6.
7.
CONTENTS

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Summary of Contents for Samsung SGH-E350

  • Page 1: Table Of Contents

    GSM TELEPHONE SGH-E350 Manual SERVICE GSM TELEPHONE CONTENTS Specification Circuit Description Exploded Views and Parts List Electrical Parts List Block Diagrams PCB Diagrams Flow Chart of Troubleshooting...
  • Page 2 ELECTRONICS ⓒ Samsung Electronics Co.,Ltd. MAY 2005 This Service Manual is a property of Samsung Electronics Co.,Ltd. Any unauthorized use of Manual can be punished under applicable Printed in Korea. International and/or domestic law. Code No.: BASIC.
  • Page 3 - 1 0 0 d B m TDM A M u x C el l Ra d iu s 3 5 Km 3 5 Km 2 Km SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 4: Specification

    11±5 dBm 8±4dBm 9±5 dBm 6±4 dBm 6±4 dBm 4±4 dBm 7±5 dBm 4±4 dBm 5±5 dBm 2±5 dBm 2±5 dBm 0±5 dBm 0±5 dBm SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 5 LO suppression, quadrature phase error, quadrature amplitude balance and low noise floor specification. Output matching/balun components drive a standard 50 ohms single ended load. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 6: Circuit Description

    The Backlight Brightness Modulator (BBM) contains a programmable Pulse-width modulator (PWM) and FET to modulate the intensity of a series of LED? s or to control a DC/DC converter that drives LCD backlight. This phone (SGH-E350) use PWM control to contrast the backlight brightness. 1.3. Clock Generator The Clock Generator (CG) generates all clocks for internal and external usage.
  • Page 7 There is Stereophonic analog output for Headphone. 9. Memory(U303) This system uses Samsung's memory, KAP17SG00A. The KAP17SG00A is a Multi Chip Package Memory which combines 256Mbit Synchronous Burst Multi Bank NOR Flash Memory and two 512Mbit OneNAND Flash and 128Mbit Synchronous Burst UtRAM.
  • Page 8 It utilizes 16 bit data bus for communication with the main processor, including bus interface types. SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 9 3. SGH-E350 Exploded View and its Parts list 1. Exploded View QFU01 QKP02 QMO01 QLC01 QSP01 QMP02 QME02 QFL01 QFR01 QKP01 QCR05 QPC01 QSC01 QCA02 QMI01 QVK01 QMP01 QAN02 QME01 QCA01 QRF03 QCK01 QRE01 QRF01 QIF01 QVO01 QCR06 QCW01 QBA01...
  • Page 10 MPR-SHEET RF COVER;SGH-E350,PC SHEET GH74-16395A QRF03 PMO-EAR COVER V2;SGH-E350,PC(G71770C GH72-22634A 　 QSC01 MPR-SLIDE/L SCREW SHEET;SGH-E350,PC GH74-16356A 　 QSP01 SPEAKER;0.7W,8ohmohm,122dB±2dB,850H 3001-001782 　 QVK01 UNIT-VOLUME KEY;SGH-E350,SGH-E350 V/ GH59-02180A 　 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 11 MPR-TAPE EMI MAIN PCB;SGH-E350,EMI T GH74-16370A MPR-TAPE EMI SUB PCB TOP;SGH-E350,EM GH74-16371A MPR-TAPE SUB PCB BOT;SGH-E350,3M 851 GH74-16373A MPR-TAPE MAIN PCB A;SGH-E350,3M 851, GH74-16787A MEC-HANGER;SGH-Z500,TMN,STRAP,-,BLK, GH75-03673H SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 12 3-2. RF Test Cable 3-3. Test Cable 3-4. Serial Cable (GH39-00283A) (GH39-00337A) (CSA LL64151-A) 3-5. Power Supply Cable 3-7. TA 3-6. DATA CABLE (GH44-00482A) (GH39-00331A] SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 13: Electrical Parts List

    U606 IC-POSI.FIXED REG 1203-003432 U701 IC-POSI.FIXED REG 1203-003545 U402 IC-DC/DC CONVERTER 1203-003568 U400 IC-POWER SUPERVISOR 1203-003742 U501 IC-BATTERY 1204-002161 U300 IC-MELODY 1205-002636 U200 IC-COMM. CONTROLLER SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 14 R-CHIP 2007-000138 R702 R-CHIP 2007-000138 R703 R-CHIP 2007-000138 R704 R-CHIP 2007-000138 R705 R-CHIP 2007-000143 R104 R-CHIP 2007-000143 R105 R-CHIP 2007-000143 R108 R-CHIP 2007-000143 R109 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 15 R-CHIP 2007-000162 R607 R-CHIP 2007-000162 R608 R-CHIP 2007-000162 R609 R-CHIP 2007-000162 R617 R-CHIP 2007-000162 R707 R-CHIP 2007-000162 R708 R-CHIP 2007-000170 R203 R-CHIP 2007-000170 R204 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 16 R-CHIP 2007-000172 R107 R-CHIP 2007-000242 R209 R-CHIP 2007-000242 R210 R-CHIP 2007-000758 R500 R-CHIP 2007-000758 R502 R-CHIP 2007-000831 R304 R-CHIP 2007-000831 R604 R-CHIP 2007-000839 R312 R-CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 17 C-CER,CHIP 2203-000233 C704 C-CER,CHIP 2203-000254 C128 C-CER,CHIP 2203-000254 C131 C-CER,CHIP 2203-000254 C133 C-CER,CHIP 2203-000254 C141 C-CER,CHIP 2203-000254 C200 C-CER,CHIP 2203-000254 C205 C-CER,CHIP 2203-000254 C207 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 18 C-CER,CHIP 2203-000679 C325 C-CER,CHIP 2203-000679 C326 C-CER,CHIP 2203-000679 C327 C-CER,CHIP 2203-000725 C316 C-CER,CHIP 2203-000812 C102 C-CER,CHIP 2203-000812 C106 C-CER,CHIP 2203-000812 C203 C-CER,CHIP 2203-000812 C210 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 19 C-CER,CHIP 2203-005482 C201 C-CER,CHIP 2203-005482 C202 C-CER,CHIP 2203-005482 C204 C-CER,CHIP 2203-005482 C206 C-CER,CHIP 2203-005482 C208 C-CER,CHIP 2203-005482 C211 C-CER,CHIP 2203-005482 C217 C-CER,CHIP 2203-005482 C302 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 20 C-CER,CHIP 2203-006053 C213 C-CER,CHIP 2203-006053 C214 C-CER,CHIP 2203-006053 C310 C-CER,CHIP 2203-006053 C505 C-CER,CHIP 2203-006053 R324 C-CER,CHIP 2203-006091 C631 C-CER,CHIP 2203-006093 C414 C-CER,CHIP 2203-006137 C623 C-CER,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 21 C-TA,CHIP 2404-001225 C425 C-TA,CHIP 2404-001268 C502 C-TA,CHIP 2404-001348 C108 C-TA,CHIP 2404-001352 C401 C-TA,CHIP 2404-001352 C411 C-TA,CHIP 2404-001374 C109 C-TA,CHIP 2404-001374 C126 C-TA,CHIP 2404-001374 C129 C-TA,CHIP SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 22 CONNECTOR-COAXIAL 3708-001966 CN700 CONNECTOR-FPC/FFC/PIC 3709-001355 SIM400 CONNECTOR-CARD EDGE 3710-001611 IFC500 CONNECTOR-INTERFACE 3711-005801 CN701 CONNECTOR-HEADER 3711-005829 BTC500 CONNECTOR-BATTERY 4302-001177 BAT400 BATTERY-LI(2ND) GH13-00029A U305 IC ASIC-SCHN480 4-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 23 5. SGH-E350 Block Diagrams 1. RF Solution Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 24: Block Diagrams

    Block Diagrams 2. Base Band Solution Block Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 25 6. SGH-E350 PCB Diagrams 1. MAIN PCB Top Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 26: Pcb Diagrams

    PCB Diagrams 2. MAIN PCB Bottom Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 27 PCB Diagrams 3. SUB Top Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 28 PCB Diagrams 4. SUB Bottom Diagram SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 29 Check the +VDD_GSM_CORE circuit = 1.8V? Check for the clock at C300 Check the clock generation circuit (related to U100) = 26MHz Check the initial operation SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...

  • Page 30: Flow Chart Of Troubleshooting

    Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 31 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 32 U201 pin 2 (RSTON) ="H"? Check the circuit related to reset Is U304 pin 4 Check the U304 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 33 1 NC R314 C300 NC 5 26M_CLK R315 U201 3 GND R316 26M_YMU762 VCC VCC1 C328 R317 RSTON 26M_MV3018 LCD_RESET C329 RF 26M TERMINATION & BUFFER SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 34 Flow Chart of Troubleshooting SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 35 Resolder or replace U501 Check the circuit related to U501 pin 3 = "L"? AUX_ON signal Check the U501 pin 10 Resolder or replace U501 ≒ 4.2V SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 36 MES_BATT CRDL 2 USB ICDL 9 +VBUS ZD500 R510 C501 _PPR AUX_ON 4 _CHG USBON END_OF_CHG IMIN 6 CHG_ON USB_CHG_ON R512 R511 C505 BATTERY CHARGING SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 37 Check the Clock pin3 of SIM400 in a few second After SIM card insert, Replace PBA SIM400 pin 2 = "H(SIM_RST)"? Check the SIM Card SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 38 Flow Chart of Troubleshooting 7-10 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 39 Flow Chart of Troubleshooting 7-11 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 40 Resolder the C603, C609, R600, R602 R603 from U200 to MIC Check U601 PIN 8 Check the JACK_EN signal = ' H' ? Check the MIC Replace the MIC 7-12 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 41 C606 C607 C605 C608 C609 MIC_N R602 C611 C610 V602 R603 R604 +VDD_IO_HIGH_2.9V JACK_EN +VDD_IO_HIGH_2.9V R605 220NF R606 EAR_ADC EAR_SWITCH MICROPHONE U600 C617 R610 7-13 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 42 U300 pin 17,18 ≒ 1.8V? Resolder U300 (When U300 operate) CN700 pin 23,25 ≒ 1.8V? Resolder CN700 (When U300 operate) Is Speaker working? Change the Speaker 7-14 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 43 U302 1 NC R314 MELODY IC C300 NC 5 26M_CLK R315 3 GND R316 26M_YMU762 C328 R317 26M_MV3018 C329 RF 26M TERMINATION & BUFFER 7-15 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 44 Check the Dome sheet & Key Pad pushed, is it displayed on LCD? When one of the keys is Replace the PBA pushed, KBIO signal is OK? 7-16 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 45 KEY_ROW(1 ) SHARP1 DIGIT8 LEFT RIGHT KEY_ROW(2 ) DOW N SOFT2 V_UP KEY_ROW(3 ) SOFT1 SEND P.T. T V_DOW N KEY_ROW(4 ) KEY_MAP END_KEY ONKEYN 7-17 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 46 Change the LCD Module SPK +,- PAD = 1.5V? Check the soldering of the Modify the speaker wire soldering spaeaker wire Replace the Speaker Is Receiver working? 7-18 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 47 Flow Chart of Troubleshooting VCC_AUDIO_BAT U604 1A 9 HFR_P SPK_P AMP_P MELODY_SEL HFR_N MELODY_SEL AMP_N SPK_N 7-19 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 48 CN800 pin 14 = H ? FPCB Check the U800 & the related circuit U800 PIN 1 = 7V ? Replace the LCD Module 7-20 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 49 VOUT R611 R612 R613 R614 R615 R616 R618 R619 1 STBY KEY_LED_ON R607 LED601 LED602 LED603 LED604 LED605 LED606 LED607 LED600 C620 SLSNNWH113TS KEY_LED 7-21 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 50 CN701 pin 1 = H ? Reconnect CN701 Check U302(pin2, pin4) related to C329 = 26MHz? 26Mhz and R317 Is there another problem? Replace the camera module 7-22 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 51 +VDD_IO_HIGH_2.9V +VDD_IO_HIGH_2.9V U302 1 NC R314 C300 NC 5 26M_CLK R315 3 GND R316 26M_YMU762 C328 R317 26M_MV3018 C329 RF 26M TERMINATION & BUFFER 7-23 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 52 F1 >= -70dBm U100 pin Check & Resolder H8,J8,H7,J7 R110, C126, C129 U100, R113 >= 1V >=2.7V RF26MHz, RF PSU Part Resolder U100 Check U200 7-24 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 53 R108, R109 R110, C126, C129 U100 pin Check & Resolder RFLO H8,J8,H7,J7 >=2.7V signal, RF13MHz, >= 1V RF PSU Part Resolder U100 Check U200 7-25 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 54 D1 >= -70dBm U100 pin Check & Resolder H8,J8,H7,J7 R110, C126, C129 U100, R113 >= 1V >=2.7V RF26MHz, RF PSU Part Resolder U100 Check U200 7-26 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 55 <= -15dBm R110, C126, C129 U100 pin Check & Resolder RFLO H8,J8,H7,J7 >=2.7V signal, RF13MHz, >= 1V RF PSU Part Resolder U100 Check U200 7-27 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 56 B1 >= -70dBm U100 pin Check & Resolder H8,J8,H7,J7 R110, C126, C129 U100, R113 >= 1V >=2.7V RF26MHz, RF PSU Part Resolder U100 Check U200 7-28 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 57 <= -15dBm R110, C126, C129 U100 pin Check & Resolder RFLO H8,J8,H7,J7 >=2.7V signal, RF13MHz, >= 1V RF PSU Part Resolder U100 Check U200 7-29 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 58 Flow Chart of Troubleshooting 7-30 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 59 Flow Chart of Troubleshooting 7-31 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...
  • Page 60 Flow Chart of Troubleshooting 7-32 SAMSUNG Proprietary-Contents may change without notice This Document can not be used without Samsung's authorization...