Samsung SGH-X540 Service Manual Download Page 34

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SAMSUNG Proprietary-Contents may change without notice

Main Electrical Parts List

This Document can not be used without Samsung's authorization

Design LOC

Description

SEC Code

STATUS

V500

VARISTOR

1405-001082

V800

VARISTOR

1405-001082

V801

VARISTOR

1405-001082

V802

VARISTOR

1405-001082

V803

DIODE-TVS

0406-001231

V804

DIODE-TVS

0406-001231

V805

VARISTOR

1405-001082

V806

DIODE-TVS

0406-001231

V807

DIODE-TVS

0406-001231

V808

VARISTOR

1405-001082

X500

CRYSTAL-SMD

2801-004373

ZD700

DIODE-ZENER

0403-001547

Summary of Contents for SGH-X540

Page 1: ...S 1 Safety Precautions 2 Specification 3 Product Function 4 Array course control 5 Exploded View Disassembly and Assembly Instructions 6 MAIN Electrical Parts List 7 Block Diagrams 8 PCB Diagrams 9 Flow Chart of Troubleshooting 10 Reference data ...

Page 2: ...vel 2 2 3 Product Function 4 Array course control 4 1 Software Adjustments 4 1 4 2 Software Downloading 4 2 5 Exploded View and Parts list 5 1 Cellular phone Exploded View 5 1 5 2 Cellular phone Part list 5 2 5 3 Disassembly Assembly Instructions 5 4 6 MAIN Electrical Parts List 7 Block Diagrams 7 1 RF Solution Block Diagram 7 1 7 2 Base Band Solution Block Diagram 7 2 8 PCB Diagrams ...

Page 3: ...t 9 9 9 6 Speaker Part Melody 9 11 9 7 Key Data Input 9 13 9 8 Receiver Part 9 14 9 9 Back Light for Color Main LCD 9 15 9 10 Key Back Light 9 17 9 11 Camera Part 9 18 9 12 GSM Receiver 9 20 9 13 GSM Transmitter 9 21 9 14 DCS Receiver 9 22 9 15 DCS Transmitter 9 23 9 16 PCS Receiver 9 24 9 17 PCS Transmitter 9 25 10 Reference data ...

Page 4: ...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 5: ...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 6: ...spacing 45MHz 45MHz 95MHz 80MHz Mod Bit rate Bit Period 270 833kbps 3 692us 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 576 9us 4 615ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK 0 3GMSK MS Power 33dBm 5dBm 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm Power Class 5pcl 19pcl 5pcl 19pcl 0pcl 15pcl 0pcl 15pcl Sensitivity 102dBm...

Page 7: ...dBm 19 5 3 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 PCS1800 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...

Page 8: ...ce 3 Product Function 3 1 This Document can not be used without Samsung s authorization Main Function SMS EMS MMS Message Service WAP HTTP support J2ME JAVA MIDP 2 0 CLDC 1 1 Speaker phone 16 Poly Melody vCard vCalendar E mail client FM Radio B T Headset ...

Page 9: ...SAMSUNG Proprietary Contents may change without notice Product Function 3 2 This Document can not be used without Samsung s authorization ...

Page 10: ... without notice 4 Array course control 4 1 This Document can not be used without Samsung s authorization 4 1 Software Adjustments Serial Cable CSA LL64151 A Power Cable USB DATA CABLE CSA LL11105 AWM JIG BOX GH80 01909A JIG CABLE GH39 00217A ...

Page 11: ...rogram Klaus_Downloader_V2 0 exe X540 Mobile Phone Data Cable Binary file TFS file 4 2 2 S W Downloader Program Load the binary download program by executing the Klaus_Downloader_V2 0 exe 1 Select the connected serial port and the rate of speed 2 Select the check box the mode you want to download if the binary file wanted check only BIN if the tfs file wanted check only TFS if all the files wanted...

Page 12: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 3 This Document can not be used without Samsung s authorization 3 Select the file s what you want to download ...

Page 13: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 4 This Document can not be used without Samsung s authorization ...

Page 14: ...structions 5 1 This Document can not be used without Samsung s authorization 5 1 Cellular phone Exploded View QFU01 QAN05 QCR12 QAN02 QRF01 QMP01 QVK01 QSP01 QFR01 QKP01 QMI03 QMI01 QME01 QRE01 QVO01 QRF03 QCK01 QIF01 QCR05 QBA01 QBA00 QCA02 QMO01 QME03 QLC01 QFL01 QSC07 QSC05 QMW01 QCR05 QCA01 ...

Page 15: ... ASSY CASE FOLDER LOWER GH98 02385A QFR01 ASSY CASE FRONT GH98 02384A QFU01 ASSY CASE FOLDER UPPER GH98 02386A QIF01 PMO COVER IF GH72 34482A QKP01 ASSY KEYPAD SER GRY GH98 03159A QLC01 ELA ETC SGHX540 LCD MODULE GH96 02269A QME01 UNIT METAL DOME GH59 03659A QME03 PCB CON TO CON GH41 01475A QMI01 MICROPHONE ASSY SGHX540 GH30 00319A QMI03 RMO MIC HOLDER GH73 05342A QMO01 MOTOR DC SGHX540 GH31 00119...

Page 16: ...IT SER GH69 04608A CUSHION CASE EU GH69 04932A MPR REMOVE TAPE LCD GH74 13804A MPR INSU TAPE GH74 15070A MPR BOHO VINYL LCD CONN GH74 15350A MPR TAPE LED GH74 17926A MPR INSU TAPE GH74 21312A MPR SPONGE LCD GH74 26952A MPR TAPE FPCB HOLE GH74 26973A MPR VINYL BOHO MAIN WINDOW GH74 26977A MPR INSU TAPE GH74 27176A MPR TAPE GH74 27509A MPR INSU TAPE GH74 27512A MPR INSU TAPE GH74 28085A MPR INSU TAP...

Page 17: ...cover 1 Handle with care No scratch 2 Check no bending the board and front rear cover 5 3 Disassembly and Assembly Instructions Disassembly 1 Release and remove the screws 4 point 1 1 Press the Rear Camera Hook side with the dismantle tool to release the locker 2 1 Press the opposite side with the dismantle tool to release the locker 2 Open the rear cover 3 1 Realeae the camera key and the volume ...

Page 18: ...s Document can not be used without Samsung s authorization 5 1 Release the LCD connector 1 Check the FPCB crack and connector damage 1 Check the PBA s damage 7 1 Release the keypad in the FRONT 8 1 Remove the tape for preventing light emission 1 After separate the CAMERA F PCB and VOLUME F PCB release the PBA 6 ...

Page 19: ... PCB crack and CONNECTOR damage 2 Care with torn of F PCB 1 Handle with care No scratch 2 Check no bending the board and front rear cover 1 Handle with care No scratch 2 Check no bending the board and front rear cover 1 Press the hinge side with the dismantle tool to release the locker 9 1 Press the side with the dismantle tool to release the locker 11 1 Press the opposite side with the dismantle ...

Page 20: ...ve CAMERA MODULE from FOLDER 1 Care with disconnecting of WIRE and soldering 1 Care with torn of F PCB 1 Check correctly attaching Shielding tape 1 Slowly separate for no damage to LCD 1 Remove SPEAKER and MOTOR from FOLDER 13 1 Remove all shield tape on the LCD MODULE 15 1 Remove the insulate tape on the LCD CONNECTOR 2 Hold up LOCKER of LCD CONNECTOR separate LCD CONNECTOR 16 ...

Page 21: ...s authorization 1 Care with torn of F PCB 1 Care with torn of F PCB 2 Slowly separate for no damage to CAMERA 1 Release the F PCB HOLE SHEET 2 Release LCD MODULE from FOLDER side 3 Remove LCD CONNECTOR through HINGE 17 1 Remove all SHIELD TAPE on the PBA 2 Remove insulation tape of CAMERA F PCB CONNECTOR side 3 Hold LOCKER and separate CAMERA MODULE 18 ...

Page 22: ...B 4 1 Attach SHIELD TAPE making meet standard 1 Check correctly inserting Camera Module 2 Care with torn of F PCB 1 Check correctly attaching tape Assembly 1 Insert CAMERA F PCB into connector putting SILK line 2 Attach insulating tape on CONNECTOR 1 1 Through LCD CONNECTOR into Hinge 2 Hold F PCB HOLE SHEET 2 3 1 Attach the LCD module to the Folder 2 Combine LCD CONNECTOR attach insulating tape f...

Page 23: ... of WIRE and soldering 2 Check correctly attaching them 1 Check there is no gap between Upper and Lower case 7 1 Tighten the SCREWS 2 POINT 8 1 Put the SCREW CAPS 1 Check correctly attaching Screw cap 1 Insert the SPEAKER and MOTOR 2 Keep in order WIRE not to do interfere structure and PBA 5 1 Put UPPER to LOWER Left of picture 2 Press and hold both sides to arrow direction and hang on LOCKER 6 ...

Page 24: ...HINGE 1 Care with torn of F PCB 1 After holding Hinge open and close Folder for click sound One time 2 Check allophone when folder open and close 3 Care with torn of F PCB 12 1 Attach a KEY PAD to the Front cover 1 Check correctly attaching 2 Check the torn 1 Check key pad correct 1 Go through LCD CONNECOR into FRONT HOLE 9 1 Attach preventing light emission tape through FRONT into LCD Connector 1...

Page 25: ...ect 1 Check there is no gap between Front and rear case 2 Check the direction of PBA 3 After insert KEY check tension 15 1 Tighten the REAR SCREWS 4 POINT 1 Place MAIN PBA as below picture with caring the Bosses and the Holders 13 1 Insert REAR to FONT ASS Y 2 Insert CAMERA KEY VOLUME KEY at correct place 3 Put the Rear cover with pressing 14 1 Attach RF SHEET 2 Check the structure 16 ...

Page 26: ...2203 005446 SA C121 C CER CHIP 2203 001153 SA C122 C CER CHIP 2203 000854 SA C125 C CER CHIP 2203 001153 SA C126 C CER CHIP 2203 000233 SA C127 C CER CHIP 2203 005281 SA C128 C CER CHIP 2203 000278 SA C129 C CER CHIP 2203 000854 SA C130 C CER CHIP 2203 005234 SA C131 C CER CHIP 2203 000679 SA C132 C CER CHIP 2203 000254 SA C133 C CER CHIP 2203 000278 SA C137 C CER CHIP 2203 000679 SA C138 C CER CH...

Page 27: ...CER CHIP 2203 006562 SA C501 C CER CHIP 2203 006257 SA C502 C CER CHIP 2203 000627 SNA C503 C CER CHIP 2203 000854 SA C506 C CER CHIP 2203 000233 SA C507 C TA CHIP 2404 001381 SA C508 C CER CHIP 2203 000812 SA C509 C CER CHIP 2203 006208 SA C510 C CER CHIP 2203 006562 SA C511 C CER CHIP 2203 006208 SA C512 C CER CHIP 2203 006257 SA C513 C CER CHIP 2203 006257 SA C515 C CER CHIP 2203 006825 SA C516...

Page 28: ... CER CHIP 2203 000643 SA C800 C CER CHIP 2203 000278 SA C801 C CER CHIP 2203 005482 SA C802 C CER CHIP 2203 005482 SA C803 C CER CHIP 2203 005683 SA C804 C CER CHIP 2203 005683 SA C805 C CER CHIP 2203 005683 SA C806 C CER CHIP 2203 005683 SA C807 C CER CHIP 2203 005683 SA C808 C CER CHIP 2203 005683 SA C809 C CER CHIP 2203 005683 SA C810 C CER CHIP 2203 005683 SA C811 C CER CHIP 2203 005683 SA C81...

Page 29: ...6 001231 SA D708 DIODE TVS 0406 001231 SA D709 DIODE TVS 0406 001231 SA D710 DIODE TVS 0406 001231 SA D711 DIODE TVS 0406 001231 SA D712 DIODE TVS 0406 001231 SA D713 DIODE TVS 0406 001231 SA D714 DIODE TVS 0406 001197 SA EAR700 JACK EAR PHONE 3722 002010 SA F702 FILTER EMI ESD 2901 001348 SA F800 FILTER EMI SMD 2901 001286 SA F801 FILTER EMI SMD 2901 001286 SA F802 FILTER EMI SMD 2901 001286 SA F...

Page 30: ...2258 SA LED706 LED 0601 002258 SA LED707 LED 0601 002258 SA LED708 LED 0601 002258 SA LED709 LED 0601 002258 SA LED710 LED 0601 002258 SA LED711 LED 0601 002258 SA LED712 LED 0601 002258 SA LED713 LED 0601 002258 SA LED714 LED 0601 002258 SA LED715 LED 0601 002258 SA LED716 LED 0601 002258 SA OSC101 OSCILLATOR VCTCXO 2809 001307 SA Q400 FET SILICON 0505 002088 SA Q900 FET SILICON 0505 002088 SA R1...

Page 31: ...HIP 2007 000171 SA R402 R CHIP 2007 000171 SA R403 R CHIP 2007 000162 SA R404 R CHIP 2007 000162 SA R406 R CHIP 2007 007141 SA R407 R CHIP 2007 000162 SA R408 R CHIP 2007 000162 SA R409 R CHIP 2007 000171 SA R410 R CHIP 2007 000162 SA R411 R CHIP 2007 000162 SA R412 R CHIP 2007 000162 SA R413 R CHIP 2007 000162 SA R414 R CHIP 2007 000171 SA R500 R CHIP 2007 000171 SA R501 R CHIP 2007 000162 SA R50...

Page 32: ...P 2007 008531 SA R713 R CHIP 2007 002796 SA R714 R CHIP 2007 008531 SA R715 R CHIP 2007 008531 SA R716 R CHIP 2007 002796 SA R717 R CHIP 2007 000140 SA R718 R CHIP 2007 000140 SA R719 C CER CHIP 2203 000278 SA R720 R CHIP 2007 000148 SA R721 C CER CHIP 2203 000278 SA R722 R CHIP 2007 007009 SA R723 R CHIP 2007 007009 SA R724 R CHIP 2007 000173 SA R725 R CHIP 2007 007009 SA R726 R CHIP 2007 000173 ...

Page 33: ...7 000171 SA RFS200 CONNECTOR COAXIAL 3705 001358 SA SIM500 CONNECTOR CARD EDGE 3709 001400 SA SW600 IC HALL EFFECT S W 1009 001018 SA TA200 C TA CHIP 2404 001474 SA TA600 C TA CHIP 2404 001381 SA TA700 C TA CHIP 2404 001377 SA TH300 THERMISTOR NTC 1404 001221 SA TR700 TR DIGITAL 0504 001100 SA U100 IC TRANSCEIVER 1205 002689 SA U200 IC POWER AMP 1201 002425 SA U201 DUPLEXER FEM 2911 000044 SA U301...

Page 34: ...EC Code STATUS V500 VARISTOR 1405 001082 SA V800 VARISTOR 1405 001082 SA V801 VARISTOR 1405 001082 SA V802 VARISTOR 1405 001082 SA V803 DIODE TVS 0406 001231 SA V804 DIODE TVS 0406 001231 SA V805 VARISTOR 1405 001082 SA V806 DIODE TVS 0406 001231 SA V807 DIODE TVS 0406 001231 SA V808 VARISTOR 1405 001082 SA X500 CRYSTAL SMD 2801 004373 SA ZD700 DIODE ZENER 0403 001547 SA ...

Page 35: ...SAMSUNG Proprietary Contents may change without notice Main Electrical Parts List 6 10 This Document can not be used without Samsung s authorization ...

Page 36: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization 7 Block Diagrams 7 1 7 1 RF Solution Block Diagram ...

Page 37: ...SAMSUNG Proprietary Contents may change without notice Block Diagrams This Document can not be used without Samsung s authorization 7 2 7 2 Base Band Solution Block Diagram ...

Page 38: ...SAMSUNG Proprietary Contents may change without notice 8 PCB Diagrams 8 1 This Document can not be used without Samsung s authorization Top ...

Page 39: ...SAMSUNG Proprietary Contents may change without notice PCB Diagrams 8 2 This Document can not be used without Samsung s authorization Top ...

Page 40: ...ck the clock generation circuit related to U101 Check for the clock at C319 26MHz Yes No Check the VDD_GSM_CORE circuit C401 VDD_GSM_CORE 1 9V Yes No Check the related circuit TA425 VDD_IO_LOW C424 VDD_IO_HIGH H Yes No Resolder OSC400 Check the Clock at R401 32KHZ Yes No Check the PMU related to VINT C408 VINT 2 7V Yes No END Change the Battery Power On does not work Check the Battery Voltage is m...

Page 41: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 2 ...

Page 42: ...rt of Troubleshooting This Document can not be used without Samsung s authorization 9 3 9 2 Initial U200 pin 2 RSTON H Initial Failure Check the circuit related to reset END No Yes Is U302 pin 4 OK Yes Yes No Check the U302 Check the 16bit data signal memory CE Yes ...

Page 43: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 4 ...

Page 44: ...elated to AUX_ON signal Resolder or replace U503 Check the circuit related to V_EXT_CHARGE Yes No Check the U500 pin 10 4 2V Yes No U500 pin 3 L Yes No U500 pin 5 L Yes No END Abnormal charging part Check the U500 pin 1 4 9V Yes Resolder or replace U503 Check the circuit related to AUX_ON signal Resolder or replace U503 Check the circuit related to V_EXT_CHARGE Yes No Yes No Yes No Yes No END Abno...

Page 45: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 6 ...

Page 46: ...d without Samsung s authorization 9 7 9 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 second Yes No Replace PBA After SIM card insert SIM400 pin 2 H SIM_RST Yes ...

Page 47: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 8 ...

Page 48: ...s Document can not be used without Samsung s authorization 9 9 9 5 Microphone Part Check the connection from MIC Check the circuit from UCP201 to MIC Resolder MIC Resolder the C605 C611 R602 R604 R605 U600 END No Yes Yes Yes Yes No Check the MIC No Replace the MIC Microphone does not work ...

Page 49: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 10 ...

Page 50: ...uthorization 9 11 9 6 Speaker Part Melody U304 pin 6 2 9V Speaker does not work Check the Clock signal at Pin 4 of U304 26MHz Check the clock generation circuit related to U301 and U303 No Yes No Resolder or replace U304 Yes U301 pin 17 18 1 8V When U301 operate Resolder U301 No Yes END Yes Is Speaker working Change the Speaker No Yes ...

Page 51: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 12 ...

Page 52: ...ing This Document can not be used without Samsung s authorization 9 13 9 7 Key Data Input When one of the keys is pushed 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 ...

Page 53: ...ce This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 14 9 8 Receiver Part Is Receiver working Resolder UCP201 or change PBA END No Yes Yes Receiver does not work No Replace the Receiver Yes Is Receiver working ...

Page 54: ...tion 9 15 9 9 Back Light for Color Main LCD Is LCD Contrast set on high level in the Menu Set LCD Contrast on high level END No Yes Yes Backlight does not work U100 SUB PCB PIN 3 H Check the inserting condition of slide FPCB Resolder UCP201 or change PBA No Yes U100 PIN 1 7V Check the U100 the related circuit No Yes Yes Replace the LCD Module ...

Page 55: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 16 ...

Page 56: ...y change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 17 9 10 Key Back Light U700 pin1 H Check the UCP201 related to KEY_LED_ON END No Yes Yes Main Key LED does not work ...

Page 57: ...ng 9 18 9 11 Camera part Camera function does not work Yes No Reconnect the camera module Check the Camera connector on SUB PCB board Yes SLC700 pin 41 H No Check the inserting condition of slide FPCB Reconnect SLC700 Yes C319 26MHz No Check U304 pin2 pin4 related to 26Mhz and R317 Yes Is there another problem END Replace the camera module Yes ...

Page 58: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 19 ...

Page 59: ...nput CH center freq 67 7kHz Amp 50dBm Yes F100 Pin8 65dBm No Resolder RFS100 C101 Yes Check ANT Switch control circuit F100 5 6 68dBm Check F100 pin10 pin12 L No No Yes Yes Resolder F100 No Resolder C104 C108 L103 U101 pin 29 70dBm pin 30 70dBm Yes No U101 pin 23 26 31 2 8V U101 pin 7 8 9 10 1V No Check Resolder U101 R125 RF26MHz RF PSU Part Yes Yes Resolder U101 Check UCP201 END ...

Page 60: ...o No 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 F101 Check F101 OK Yes U101 pin 7 8 9 10 1V Resolder R110 R111 R112 Resolder or Change PAM100 Check ANT Switch control circuit Change or Resolder L107 C125 C124 PAM100 pin12 11dBm PAM100 pin 38 15dB PAM100 pin16 18dBm F100 pin11 18dBm Check F100 pin10 H 2 6V 12...

Page 61: ... pin10 pin12 L Check UCP201 No No No No No Yes Yes Yes Yes Yes Yes Resolder U101 Check Resolder U100 R113 RF26MHz RF PSU Part U101 pin 23 26 31 2 8V Resolder C117 C118 L106 Resolder F100 Check ANT Switch control circuit U101 pin 35 70dBm pin 36 70dBm U101 pin 7 8 9 10 1V F100 1 2 68dBm RX ON RF input CH center freq 67 7kHz Amp 50dBm Yes No END Resolder RFS100 C101 F100 Pin8 65dBm ...

Page 62: ...No No 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 F101 Check F101 OK Yes U101 pin 7 8 9 10 1V Resolder R116 R117 R118 Resolder or Change PAM100 Check ANT Switch control circuit Change or Resolder L104 C134 R124 PAM100 pin4 11dBm PAM100 pin 2 15dB PAM100 pin18 18dBm F100 pin13 18dBm Check F100 pin12 H 2 6V 10 ...

Page 63: ...nput CH center freq 67 7kHz Amp 50dBm Yes F100 Pin8 65dBm No Resolder RFS100 C101 Yes F100 3 4 68dBm Check F100 pin10 pin12 L No No Check ANT Switch control circuit Yes Yes Resolder F100 U101 pin 32 70dBm pin 33 70dBm No Resolder C112 C116 L105 Yes U101 pin 23 26 31 2 8V 101 pin 7 8 9 10 1V No No Check Resolder U100 R113 RF26MHz RF PSU Part Yes Yes Resolder U101 Check UCP201 END ...

Page 64: ...Bm Check F100 pin12 H 2 6V 10 L No No Check ANT Switch control circuit Yes Change or Resolder L104 C134 R124 Yes PAM100 pin18 18dBm No Resolder or Change PAM100 Yes Check F101 OK PAM100 pin4 11dBm No No Resolder or Change F101 Check VBAT or PAM control signal Yes Yes No U101 pin1 15dBm Resolder R103 R104 R105 Yes U101 pin 23 26 31 2 8V U101 pin 7 8 9 10 1V No No Check Resolder RFLO signal RF13MHz ...

Page 65: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 26 ...

Page 66: ...K 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 Divi...

Page 67: ...SAMSUNG Proprietary Contents may change without notice Reference data 10 2 This Document can not be used without Samsung s authorization ...

Page 68: ...is 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 Samsung Electronics Co Ltd 2007 01 Rev 1 0 ⓒ ...

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Summary of Contents for SGH-X540

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Samsung SGH-X540, Service Manual, Page: 34 / 68

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