Samsung SGH-E350E Service Manual Download

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GSM TELEPHONE

SGH-E350E

GSM TELEPHONE

CONTENTS

Specification

Circuit Description

Exploded Views and Parts List

Electrical Parts List

Block Diagrams

PCB Diagrams

Flow Chart of Troubleshooting

Summary of Contents for SGH-E350E

Page 1: ...SM TELEPHONE SGH E350E GSM TELEPHONE CONTENTS 1 Specification 2 Circuit Description 3 Exploded Views and Parts List 4 Electrical Parts List 5 Block Diagrams 6 PCB Diagrams 7 Flow Chart of Troubleshooting ...

Page 2: ... Ltd August 2005 Printed in Korea Code No GH68 07967A BASIC This Service Manual is a property of Samsung Electronics Co Ltd Any unauthorized use of Manual can be punished under applicable International and or domestic law ⓒ ...

Page 3: ...k Downlink 890 915 935 960 880 915 925 960 1710 1785 1805 1880 ARFCN range 1 124 0 124 975 1023 512 885 Tx Rx spacing 45MHz 45MHz 95MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30dBm 0dBm Power Class 5pcl 19pcl 5p...

Page 4: ...m 11 8 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level DCS1800 0 30 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 4dBm 12 6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level GSM900 5 33 3 dBm 6 31 3 dBm 7 29 3 dBm 8 27 3 dBm 9 25 3 dBm 10 23 3 dBm 11 21 3 dBm 12 19 3 dBm 13 17 3 dBm 14 1...

Page 5: ...102 This chip is fully integrated GSM GPRS tri band transceiver with VCO loop filters and most of the passive component in it And also fully integrated fractional N RF synthesizer with AFC control possibility RF VCO with integrated supply regulator Semi integrated reference oscillator with integrated supply regulator RF Receiver front end amplifies the E GSM900 DCS1800 and PCS1900 aerial signal co...

Page 6: ... ensure proper system behavior during start up or in the event of a fault condition low microprocessor voltage insufficient battery energy or excessive die temperature Backlight Brightness Modulator 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...

Page 7: ...rger IC stop charging process 2 2 7 Audio HFR_P and HFR_N from PCF5213EL1 are connected to the main speaker via analog switches MIC_P and MIC_N are connected to the main MIC as well EAR1 is the source of External Speaker YMU762 is a synthesizer LSI for mobile phones This LSI has a built in speaker amplifier for outputting sounds that are used by mobile phones in addition to game sounds and ringing...

Page 8: ...cate MV3018B Camera DSP Chip controls the communication between ARM core and DSP core OEn WEn control the access of memory KROW and KCOL recognize the key string input status It has J TAG control pins TDI TDO TCK for ARM and DSP core J SEL signal controls different access to ARM and DSP core ADC Analog to Digital Convertor receives the condition of temperature battery type and battery voltage 2 2 ...

Page 9: ...and Parts List 3 1 This Document can not be used without Samsung s authorization 3 1 Exploded View QFU01 QKP02 QMP02 QFL01 QCR05 QSC01 QSP01 QMO01 QME02 QLC01 QVK01 QAN02 QRF01 QRF03 QVO01 QCW01 QFR01 QKP01 QMP01 QRE01 QCK01 QCA01 QIF01 QCR06 QBA01 QMI01 QCA02 QME01 QPC01 ...

Page 10: ...EC KEYPAD MAIN SGH E350 EU GH75 07285A QKP02 ㅤ MEC KEYPAD SUB SGH E350 EU B GH75 07284A QLC01 ㅤ LCD SGHE350 LTS166QQ F02 SGH E350 12 GH07 00729A QME01 ㅤ UNIT METAL DOME MAIN SGH E350 SGH E GH59 02182A QME02 ㅤ UNIT METAL DOME SUB SGH E350 SGH E3 GH59 02181A QMI01 ㅤ MICROPHONE ASSY SGHE350 1 130to500uA GH30 00203A QMO01 ㅤ MOTOR DC SGHE350 JHV 10A1 F13 SGH E3 GH31 00176A QMP01 ㅤ PBA MAIN SGHE350EDGE ...

Page 11: ...69 03026A PMO BATT LOCKER SGH E350 PC G6656 S GH72 20662A RMO RUBBER BGA 1 SGH E350 CR RUBBER GH73 05089A RMO RUBBER BGA 2 SGH E350 CR RUBBER GH73 05090A RMO RUBBER BGA 3 SGH E350 CR RUBBER GH73 05091A MPR TAPE SUB FPCB SGH E350 3M 851 28 GH74 16170A MPR TAPE LCD FPCB CONN SGH E350 3M 8 GH74 16171A MPR TAPE MAIN FPCB BASE SGH E350 PET GH74 16218A MPR TAPE MAIN FPCB SGH E350 3M 851 2 GH74 16219A MP...

Page 12: ...st 3 4 This Document can not be used without Samsung s authorization 3 3 Test Jig GH80 03306A 3 3 2 RF Test Cable GH39 00283A 3 3 3 Test Cable GH39 00337A 3 3 5 Power Supply Cable 3 3 6 DATA CABLE GH39 00331A 3 3 7 TA GH44 00482A 3 3 1 USB JIG Cable 3 3 4 Serial Cable CSA LL64151 A ...

Page 13: ... 2203 000233 C124 C CER CHIP 2203 000278 C125 C CER CHIP 2203 006190 C126 C CER CHIP 2203 000233 C129 C CER CHIP 2203 000278 C131 C CER CHIP 2203 002668 C133 C CER CHIP 2203 000628 C134 C CER CHIP 2203 000278 C135 C CER CHIP 2203 000278 C136 C CER CHIP 2203 000425 C137 C CER CHIP 2203 000425 C138 C CER CHIP 2203 000386 C139 C CER CHIP 2203 000386 C140 C CER CHIP 2203 000386 C141 C CER CHIP 2203 00...

Page 14: ... 002525 C314 C CER CHIP 2203 005482 C315 C CER CHIP 2203 005480 C316 C CER CHIP 2203 000725 C317 C CER CHIP 2203 005482 C318 C CER CHIP 2203 000438 C319 C CER CHIP 2203 006257 C320 C CER CHIP 2203 003054 C321 C CER CHIP 2203 000438 C322 C CER CHIP 2203 006257 C323 C CER CHIP 2203 005482 C400 C CER CHIP 2203 006399 C401 C CER CHIP 2203 006257 C402 C CER CHIP 2203 006090 C403 C TA CHIP 2404 001225 C...

Page 15: ...00278 C612 C CER CHIP 2203 002443 C613 C CER CHIP 2203 005482 C614 C CER CHIP 2203 000278 C616 C CER CHIP 2203 005056 C617 C CER CHIP 2203 000254 C619 C CER CHIP 2203 000278 C620 C CER CHIP 2203 006399 C621 C CER CHIP 2203 003054 C622 C CER CHIP 2203 006257 C623 C CER CHIP 2203 006137 C624 C CER CHIP 2203 005482 C625 C CER CHIP 2203 005482 C626 C CER CHIP 2203 000278 C627 C CER CHIP 2203 000438 C6...

Page 16: ...01254 F105 FILTER SAW 2904 001553 F500 FILTER EMI SMD 2901 001283 F501 FILTER EMI ESD 2901 001322 F502 FILTER EMI ESD 2901 001322 F700 FILTER EMI ESD 2901 001319 F701 FILTER EMI ESD 2901 001319 F702 FILTER EMI ESD 2901 001319 F703 FILTER EMI ESD 2901 001319 F704 FILTER EMI ESD 2901 001319 F705 FILTER EMI ESD 2901 001319 IFC500 CONNECTOR INTERFACE 3710 001611 L100 R CHIP 2007 000171 L101 R CHIP 200...

Page 17: ...07 000171 R112 R CHIP 2007 000171 R113 R CHIP 2007 000171 R114 R CHIP 2007 000171 R115 R CHIP 2007 000566 R116 R CHIP 2007 001288 R117 R CHIP 2007 001313 R118 R CHIP 2007 001313 R201 R CHIP 2007 000148 R202 R CHIP 2007 000171 R204 R CHIP 2007 000242 R205 R CHIP 2007 000242 R206 R CHIP 2007 000162 R207 R CHIP 2007 000162 R208 R CHIP 2007 000162 R209 R CHIP 2007 000162 R210 R CHIP 2007 000143 R211 R...

Page 18: ...7 000162 R502 R CHIP 2007 000758 R503 R CHIP 2007 007107 R504 R CHIP 2007 000148 R507 R CHIP 2007 000137 R508 R CHIP 2007 007573 R509 R CHIP 2007 000162 R510 R CHIP 2007 007334 R511 R CHIP 2007 000156 R512 R CHIP 2007 007489 R513 R CHIP 2007 000170 R514 R CHIP 2007 000170 R517 R CHIP 2007 000138 R518 R CHIP 2007 000138 R520 R CHIP 2007 000171 R600 R CHIP 2007 000137 R602 R CHIP 2007 000137 R603 R ...

Page 19: ...8 U305 IC ASIC SCHN480 GH13 00029A U400 IC POWER SUPERVISOR 1203 003568 U402 IC DC DC CONVERTER 1203 003545 U503 IC BATTERY 1203 003742 U504 TR DIGITAL 0504 001151 U600 IC VOLTAGE COMP 1202 001068 U607 IC HALL EFFECT S W 1009 001020 U700 IC DC DC CONVERTER 1203 003321 U701 IC POSI FIXED REG 1203 003432 U703 IC CMOS LOGIC 0801 002970 U714 R CHIP 2007 000152 U716 C TA CHIP 2404 001225 U717 C CER CHI...

Page 20: ...SAMSUNG Proprietary Contents may change without notice Electrical Parts List 4 8 This Document can not be used without Samsung s authorization ...

Page 21: ...witch EW PADF013A Ipeak 10 m A Freq M Hz Loss 880 915 1 5 dB 925 960 1 2 dB 1710 1910 1 6 dB 1805 1880 1 3 dB Atten 2xfo 30 dB 3 xfo 40dB GSM DCS 1930 1960 1 4 dB Balun Balun DCS PCS IN G SM 900 OUT DCS PCS OUT EG SM TX D CS PCS TX EGSM RX PCS R X DCS R X ANT F ESW1 F ESW2 F ESW3 BGY 284E QUAD BAND PAM GSM EDGE FO R GS M GSM850 Pout 36 dBm Eff 50 GSM900 Pout 36 dBm Eff 55 DCS1800 Pout 33 5 dBm Eff...

Page 22: ...g Circuit Li Ion Battery Slim Standard PCF5213EL1 VIBRATOR SYSTEM CLOCK 26MHz RTC_CLOCK 32 768KHz KEY_BOARD RECEIVER MIC LCD RF INTERFACE D3VDD AVDD VINT PMU D2VDD Serial Data Interface I O Interface A D Interface BB INTERFACE MELODY IC 64 Poly SPEAKER IOVDD VDD_RX_TX VCC_SYN MIC_BIAS CPVDD D1VDD SIMEN GPO VCHG VSAVE SIM CARD MV319DNQ Ext SPEAKER 1G OneNAND MEMORY 5 2 Base Band Solution Block Diag...

Page 23: ...SAMSUNG Proprietary Contents may change without notice 6 PCB Diagrams 6 1 This Document can not be used without Samsung s authorization 6 1 MAIN PCB Top Diagram ...

Page 24: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 2 This Document can not be used without Samsung s authorization 6 2 MAIN PCB Bottom Diagram ...

Page 25: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 2 3 This Document can not be used without Samsung s authorization 6 3 SUB PCB Top Diagram ...

Page 26: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 6 4 This Document can not be used without Samsung s authorization 6 4 SUB PCB Bottom Diagram ...

Page 27: ...ower On does not work Change the Battery END No Yes C408 VINT 2 7V Check the PMU related to VINT No Yes Check the Clock at R400 32KHZ Resolder OSC400 No Yes U716 VDD_IO_LOW C422 VDD_IO_HIGH H Check the related circuit No Yes C402 VDD_GSM_CORE 1 8V Check the VDD_GSM_CORE circuit No Yes Check for the clock at C300 26MHz Check the clock generation circuit related to U100 No Yes Check the initial oper...

Page 28: ...REN1 6 PWREN2 5 REFC 28 RF12VBAT 23 22 RF1VDD RF2VDD 24 SCL 2 SCN 38 14 IOVDD 20 LPD1VBAT LPVDD 19 MICBIAS 12 NC 53 54 NC OSCI 26 OSCO 25 GND 51 52 GND GPO1 48 GPO2 47 GPO3 46 18 HCVBAT HCVDD 17 IOD2VBAT 15 CLK32K 4 CPVBAT 36 CPVDD 35 D1VDD 21 16 D2VDD D3VDD 39 GND 49 50 GND U400 CHGCUR BATMAX 34 CHGDRV 33 R403 C400 C411 R406 VDD_IO_LOW_1 9V C405 C414 C413 OSC400 R400 C402 U720 C409 V400 R408 C417...

Page 29: ...nge without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 3 VDD_IO_HIGH_2 9V VDD_IO_HIGH_2 9V NC 5 6 VCC 4 Y U302 A 2 3 GND 1 NC R316 R314 C300 R315 R317 26M_MV3018 26M_YMU762 26M_CLK ...

Page 30: ...ument can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 4 7 2 Initial U201 pin 2 RSTON H Initial Failure Check the circuit related to reset END No Yes Is U304 pin 4 OK Yes Yes No Check the U304 Check the 16bit data signal memory CE Yes ...

Page 31: ...12 A3 DNU DNU A10 A11 DNU DNU A12 R1 DNU R2 A7RU A8O J11 F8 A8RU J10 A9O A9RU C9 H10 AVDO E5 CLKO E6 CLKRU A2 A3RU A4O E11 C3 A4RU H9 A5O A5RU D3 A6O G10 E3 A6RU F11 A7O C4 A1RU D8 A20RU A21RU D6 C11 A22RU A23R D12 A2O G9 D2 A2RU F10 A3O E2 L10 A15O A15RU C10 G7 A16RU A17RU B4 D4 A18RU A19RU E8 G8 A1O C2 K10 A11O A11RU D10 A12O K9 E9 A12RU L11 A13O A13RU E10 A14O K8 D11 A14RU U303 A0O F9 K6 A0RU A...

Page 32: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 6 ...

Page 33: ...pin 3 L No Yes Check the U503 pin 10 4 2V No Yes Check the circuit related to V_EXT_CHARGE Resolder or replace U503 Check the circuit related to AUX_ON signal Resolder or replace U503 Yes Resolder or replace U505 Check the circuit related to AUX_ON signal Resolder or replace U505 Check the circuit related to V_EXT_CHARGE Yes No Check the U505 pin 10 4 2V Yes No U505 pin 3 L Yes No U505 pin 5 L Yes...

Page 34: ...amsung s authorization Flow Chart of Troubleshooting 7 8 BATTERY CHARGING R508 3 C502 8 GND ICDL 9 IMIN 6 2 USB 7 USBON 4 _CHG _EN 5 _PPR U503 BAT 10 1 CRDL GND 11 VBAT R507 C505 ZD501 R511 VDD_IO_HIGH_2 9V R510 ZD500 R512 C501 C503 MES_BATT V_EXT_CHARGE END_OF_CHG USB_CHG_ON AUX_ON VBUS CHG_ON ...

Page 35: ...used without Samsung s authorization 7 9 7 4 Sim Part SIM400 pin 1 5 H Phone can t access SIM Card Check the sim charge pump Check the SIM Card END No Yes Yes Yes No Check the Clock After Power ON Check SIMCLK Signal on pin3 of SIM400 in a few Yes No Replace PBA After SIM card insert SIM400 pin 2 H SIM_RST Yes ...

Page 36: ...REN1 6 PWREN2 5 REFC 28 RF12VBAT 23 22 RF1VDD RF2VDD 24 SCL 2 SCN 38 14 IOVDD 20 LPD1VBAT LPVDD 19 MICBIAS 12 NC 53 54 NC OSCI 26 OSCO 25 GND 51 52 GND GPO1 48 GPO2 47 GPO3 46 18 HCVBAT HCVDD 17 IOD2VBAT 15 CLK32K 4 CPVBAT 36 CPVDD 35 D1VDD 21 16 D2VDD D3VDD 39 GND 49 50 GND U400 CHGCUR BATMAX 34 CHGDRV 33 R403 C400 C411 R406 VDD_IO_LOW_1 9V C405 C414 C413 OSC400 R400 C402 U720 C409 V400 R408 C417...

Page 37: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 11 ...

Page 38: ...zation Flow Chart of Troubleshooting 7 12 7 5 Microphone Part Check the connection from MIC Check the circuit from U200 to MIC Resolder MIC Resolder the C603 C609 R600 R602 R603 END No Yes Yes Yes Yes No Check U601 PIN 8 H No Check the JACK_EN signal Microphone does not work Yes Check the MIC No Replace the MIC ...

Page 39: ...NE Close to MCP EARPIECE Close to microphone R603 V602 C605 C617 R600 C603 C610 C608 R610 2 1 3 5 4 U600 GND 10 VCC 1A 1B0 1 2 1B1 1S 8 2A 6 2B0 3 4 2B1 7 2S 5 U601 9 R604 MIC_BIAS VDD_IO_HIGH_2 9V MIC MIC600 R601 R605 MIC_BIAS_BB C611 C600 C609 C606 C601 MIC_BIAS V601 C631 C630 R606 R602 C602 C607 VDD_IO_HIGH_2 9V EAR_SWITCH MIC_P MIC_N JACK_EN EAR_ADC MIC_CP ...

Page 40: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 14 ...

Page 41: ...Part Melody U302 pin 6 2 9V Speaker does not work Check the Clock signal at Pin 1 of U300 26MHz Check the clock generation circuit related to U100and U300 No Yes No Resolder or replace U302 Yes U300 pin 17 18 1 8V When U300 operate Resolder U300 No Yes END Is Speaker working Change the Speaker No Yes Yes CN700 pin 23 25 1 8V When U300 operate Resolder CN700 No Yes ...

Page 42: ...OUT L MONO 10 11 HPOUT R IOVDD 32 LED 2 19 MTR 5 NC PLLC 6 21 D6 D7 20 EQ1 12 13 EQ2 EQ3 14 G 33 34 G G 35 30 A0 1 CLKI D0 27 26 D1 25 D2 D3 24 23 D4 D5 22 U300 C302 R301 R302 R304 R305 C301 C304 C312 VDD_IO_HIGH_2 9V C311 C310 C315 C313 C316 C305 VBAT HA 1 EARP_HF AMP_N AMP_P ANL ANR HD 1 HD 0 WEn CS5n_MELODY OEn HD 2 26M_YMU762 HD 3 HD 4 M_INT HD 5 RSTON HD 6 HD 7 VIB VDD_IO_HIGH_2 9V VDD_IO_HIG...

Page 43: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 17 ...

Page 44: ...ed is it displayed on LCD Check the Dome sheet Key Pad END No Yes Yes Check Initial Operation When one of the keys is pushed KBIO signal is OK Replace the PBA No Yes KEY_MAP 2 2 DIGIT1 1 DIGIT3 1 12 DIGIT6 12 DIGIT8 12 DIGIT7 DIGIT2 12 STAR1 12 2 DIGIT9 1 12 DIGIT5 DIGIT4 12 12 DIGIT10 12 SHARP1 KEY_COL 2 KEY_COL 1 KEY_COL 0 KEY_ROW 1 KEY_ROW 2 KEY_ROW 0 KEY_COL 4 KEY_COL 3 KEY_COL 0 4 KEY_ROW 0 2...

Page 45: ...8 Receiver Part U608 pin 2 1 5V Resolder U200 or change PBA END No Yes Yes Receiver does not work SPK PAD 1 5V Change the LCD Module No Yes Is Receiver working Replace the Speaker No Yes No Resolder or replace U608 Yes No change U200 CN700 pin 23 25 1 5V Yes Check the soldering of the spaeaker wire No Modify the speaker wire soldering Yes U608 pin 2 1 5V ...

Page 46: ...e without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 20 VCC_SW 2 1B1 8 1S 6 2A 3 2B0 2B1 4 2S 7 5 GND VCC 10 U604 1A 9 1B0 1 HFR_P AMP_P AMP_N HFR_N SPK_N SPK_P MELODY_SEL MELODY_SEL ...

Page 47: ... used without Samsung s authorization 7 21 7 9 Back Light for Color Main LCD Is LCD Contrast set on high Set LCD Contrast on high level END No Yes Yes Backlight does not work CN800 pin 14 H Change the board to board FPCB No Yes U800 PIN 1 7V Check the U800 the related circuit No Yes Yes Replace the LCD Module ...

Page 48: ... of Troubleshooting 7 22 7 10 Key Back Light U606 pin3 H Check the U200 related to VDD_KEY END No Yes Yes Main Key LED does not work KEY_LED LED604 75 R613 2 6 GND NC 5 1 STBY VIN 3 VOUT 4 U606 GND R616 75 R611 75 LED601 LED603 LED606 75 R615 C622 LED602 R607 75 R612 LED600 LED605 75 R618 LED607 R619 75 75 R614 VBAT KEY_LED_ON ...

Page 49: ...out Samsung s authorization 7 23 7 11 Camera part Camera function does not work Yes No Reconnect the camera module Check the Camera connector on LCD Module Yes CN701 pin 1 H No Reconnect CN701 Yes R317 26MHz No Check U302 pin2 pin4 related to 26Mhz and R317 Yes Is there another problem END Replace the camera module Yes ...

Page 50: ... M4 LD17 L10 LD2 LD3 L9 LD4 L8 K10 LD5 K9 LD6 K8 LCS2 L6 LD0 M10 M9 LD1 J8 LD10 H8 LD11 LD12 G9 G8 LD13 F9 LD14 F8 GPIO2 C5 GPIO4 C4 GPIO5 C2 GPIO6 B2 GPIO7 MD17 GPIO8 MD16 B1 A9 HREF K6 LCS1 F3 DVSS F10 DVSS H9 DVSS J10 DVSS K2 DVSS L5 DVSS E9 GPIO0 GPIO1 D10 D8 A6 DI7 B7 C8 DVSS2 M8 DVSS DVSS B3 A7 DVSS DVSS D3 DVSS C9 CVDD L7 CVDD DI0 A3 B4 DI1 DI2 A4 B5 DI3 DI4 A5 B6 DI5 DI6 U305 G10 CLKI CLKO...

Page 51: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 7 25 ...

Page 52: ...65dBm No Resolder CN100 C102 Yes Check ANT Switch control circuit U100 pin1 2 68dBm Check MODULE1 pin9 pin10 pin12 L No No Yes Yes Resolder MODULE1 No Resolder C105 C114 L105 U100 pin E1 70dBm pin F1 70dBm Yes No R110 C126 C129 2 7V U100 pin H8 J8 H7 J7 1V No Check Resolder U100 R113 RF26MHz RF PSU Part Yes Yes Resolder U100 Check U200 END RX ON RF input CH center freq 67 7kHz Amp 50dBm ...

Page 53: ...o Yes Yes Yes Yes Yes Yes Yes Yes Check Resolder RFLO signal RF13MHz RF PSU Part Check VBAT or PAM control signal Resolder or Change U101 Check U101 pin 5 OK Yes U100 pin H8 J8 H7 J7 1V Resolder R106 R107 R108 R109 Resolder C113 C107 C112 Check ANT Switch control circuit Change or Resolder MODULE1 U101 pin7 11dBm U101 pin7 15dBm U101 pin8 18dBm MODULE1 pin11 18dBm Check MODULE1 pin10 H 2 68V pin9 ...

Page 54: ...No No Yes Yes Yes Yes Yes Yes Resolder U100 Check Resolder U100 R113 RF26MHz RF PSU Part R110 C126 C129 2 7V Resolder C104 C103 L102 L103 Resolder MODULE1 Check ANT Switch control circuit U100 pin C1 70dBm pin D1 70dBm U100 pin H8 J8 H7 J7 1V U100 pin3 4 68dBm Check MODULE1 pin9 pin10 pin12 L RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No END Resolder CN100 C102 MODULE1 Pin7 65dBm ...

Page 55: ... No Yes Yes Yes Yes Yes Yes Yes Yes Check Resolder RFLO signal RF13MHz RF PSU Part Check VBAT or PAM control signal Resolder or Change U101 Check U101 pin 5 OK Yes U100 pin H8 J8 H7 J7 1V Resolder R103 R104 R105 Resolder L109 R100 C121 Check ANT Switch control circuit Change or Resolder MODULE1 U101 pin1 11dBm U101 pin1 15dBm U101 pin9 18dBm MODULE1 pin13 18dBm Check MODULE1 pin12 H 2 68V pin9 10 ...

Page 56: ...ter freq 67 7kHz Amp 50dBm Yes MODULE1 Pin7 65dBm No Resolder CN100 C102 Yes U100 pin5 6 68dBm Check MODULE1 pin9 H pin10 pin12 L No No Check ANT Switch control circuit Yes Yes Resolder MODULE1 U100 pin A1 70dBm pin B1 70dBm No Resolder C119 L107 L108 C118 Yes R110 C126 C129 2 7V U100 pin H8 J8 H7 J7 1V No No Check Resolder U100 R113 RF26MHz RF PSU Part Yes Yes Resolder U100 Check U200 END ...

Page 57: ...dBm Check MODULE1 pin12 H 2 68V pin9 10 L No No Check ANT Switch control circuit Yes Change or Resolder MODULE1 Yes U101 pin9 18dBm No Resolder L109 R100 C121 Yes Check U101 pin 5 OK U101 pin1 11dBm No No Resolder or Change U101 Check VBAT or PAM control signal Yes Yes No U101 pin1 15dBm Resolder R103 R104 R105 Yes R110 C126 C129 2 7V OK U100 pin H8 J8 H7 J7 1V No No Check Resolder RFLO signal RF1...

Page 58: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 7 32 ...

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