Samsung SGH-D780 Service Manual Download Page 62

Page: 62 / 76

SAMSUNG Proprietary-Contents may change without notice

This Document can not be used without Samsung's authorization

Flow Chart of Troubleshooting

9-28

2)Slave

Resolder PAM700

RX ON

RF input : CH center freq : +67.7kHz

Cell Power : -60dBm

Yes

PAM700 pin11

≥ -65dBm

Resolder

RFS700,C705,L700,C711,

L702,L704,R701,R702

Yes

PAM700 pin6

≥ -68dBm

Yes

Resolder U700

U700

pin15,16 ≥ -70dBm

Yes

UCP800

pinC6(MOD_STANDBY

_S)=High,

pinD6(PON_PA_S)=Low,

pinA6(BAND_SEL_S)

=High

Yes

Check UCP200

END

Resolder UCP800

Summary of Contents for SGH-D780

Page 1: ...ns 2 Specification 3 Product Function 4 Array course control 5 Exploded View and Parts List 6 Main Electrical Parts List 7 Block Diagrams 8 PCB Diagrams 9 Flow Chart of Troubleshooting 10 Reference data 11 Disassembly and Assembly Instructions 12 Schematic Diagrams ...

Page 2: ...d or domestic law Samsung Electronics Co Ltd 2008 05 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 ...

Page 3: ...worn 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 a...

Page 4: ...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 5: ...85 512 810 Tx Rx 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 S...

Page 6: ...6 4 dBm 13 4 4 dBm 14 2 5 dBm 15 0 5 dBm TX Power control level DCS1800 0 30 2 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 GSM850 5 33 2 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 15 3 dBm ...

Page 7: ... 16 11 5 dBm 17 9 5 dBm 18 7 5 dBm 19 5 5 dBm TX Power control level DCS1800 2 26 4 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 12 3 dBm 9 10 3 dBm 10 14 3 dBm 11 12 4 dBm 12 10 4 dBm 13 8 4dBm 14 6 4 dBm 15 4 4 dBm 2 3 GSM EDGE TX power class TX Power control level PCS1900 2 26 4 3 dBm 3 24 3 dBm 4 22 3 dBm 5 20 3 dBm 6 18 3 dBm 7 16 3 dBm 8 12 3 dBm 9 10 3 dBm 10 14 3 dBm 11 1...

Page 8: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Specification 2 4 ...

Page 9: ...tion Main Function Bar Design Intenna Dual Standby 2M CMOS Camera Bluetooth V 2 0 Stereo Bluetooth Headset Mobile Tracker SOS Messaging 2 1 QVGA 262K TFT Display EXT Memory SMS MMS E Mail WAP 2 0 Java MIDP 2 0 MP3 AAC MP4 3GPP Decoding Video Recording and Messaging GSM GPRS EDGE Class 10 Band Master GSM900 1800 1900 Slave GSM900 1800 FM radio Speaker Phone ...

Page 10: ...SAMSUNG Proprietary Contents may change without notice Operation Instruction and Installation 3 2 This Document can not be used without Samsung s authorization ...

Page 11: ... may change without notice 4 Array course control 4 1 This Document can not be used without Samsung s authorization 4 1 Software Adjustments Test Jig GH80 03306A Test Cable GH39 00838A Test Cable GH39 00877A Test Cable GH39 00397A ...

Page 12: ...ta Cable Binary file TFS file 4 2 2 S W Downloader Program Load the binary download program by executing the OneNAND_Downloader_v0 5_GEM_Lite_For_three_drive_arm7_arm9 exe 1 Select the download mode you want if Master mode wanted check ARM9 if Slave mode wanted check ARM7 2 Select the connected serial port and the rate of speed 3 Select the check box the mode you want to download if the binary fil...

Page 13: ...otice Array course control 4 3 This Document can not be used without Samsung s authorization 4 Select the file s what you want to download if you select ARM9 select the file D780ooooo_Master ooo if you select ARM7 select the file D780ooooo_Slave ooo 4 ...

Page 14: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 4 This Document can not be used without Samsung s authorization ...

Page 15: ...SAMSUNG Proprietary Contents may change without notice 5 Exploded View and Parts List 5 1 This Document can not be used without Samsung s authorization 5 1 Cellular phone Exploded View ...

Page 16: ...01 PMO KEY CAMERA GH72 47114A QCK02 PMO KEY SWITCH GH72 47115A QCR87 SCREW TAPPING 6002 001412 QCR87 SCREW TAPPING 6002 001412 QCR88 SCREW TAPPING 6002 001409 QKP01 ASSY KEYPAD SER SIL GH98 07966A QLB01 ASSY BRACKET LCD GH98 08200A QLC01 LCD SGH P240MODULE GH07 01270A QME01 KEY FPCB MAIN KEY PBA P240 GH59 05594A QMO01 MOTOR DC SGH P240 GH31 00434A QMP01 PBA MAIN SGH_D780 GH92 04611A QRE01 ASSY CAS...

Page 17: ...ICON SA 0505 002111 U900 FET SILICON SA 0801 003022 U200 IC CMOS LOGIC SA 0801 003055 U303 IC CMOS LOGIC SA 1001 001429 U300 IC ANALOG SWITCH SA 1001 001429 U301 IC ANALOG SWITCH SA 1001 001453 U400 IC ANALOG SWITCH SA 1001 001453 U403 IC ANALOG SWITCH SA 1001 001453 U404 IC ANALOG SWITCH SA 1001 001453 U405 IC ANALOG SWITCH SA 1001 001470 U502 IC ANALOG SWITCH SA 1001 001470 U101 IC ANALOG SWITCH...

Page 18: ...1138 V800 VARISTOR SA 2007 000070 L401 R CHIP SA 2007 000070 L402 R CHIP SA 2007 000138 R112 R CHIP SA 2007 000138 R324 R CHIP SA 2007 000138 R325 R CHIP SA 2007 000138 R403 R CHIP SA 2007 000138 R406 R CHIP SA 2007 000138 R414 R CHIP SA 2007 000138 R415 R CHIP SA 2007 000138 R416 R CHIP SA 2007 000138 R520 R CHIP SA 2007 000140 R105 R CHIP SA 2007 000140 R213 R CHIP SA 2007 000140 R318 R CHIP SA ...

Page 19: ...IP SA 2007 000157 R229 R CHIP SA 2007 000157 R230 R CHIP SA 2007 000157 R420 R CHIP SA 2007 000157 R825 R CHIP SA 2007 000159 R320 R CHIP SA 2007 000162 R108 R CHIP SA 2007 000162 R109 R CHIP SA 2007 000162 R113 R CHIP SA 2007 000162 R202 R CHIP SA 2007 000162 R209 R CHIP SA 2007 000162 R210 R CHIP SA 2007 000162 R225 R CHIP SA 2007 000162 R304 R CHIP SA 2007 000162 R307 R CHIP SA 2007 000162 R308...

Page 20: ...IP SA 2007 000171 L404 R CHIP SA 2007 000171 R222 R CHIP SA 2007 000171 R303 R CHIP SA 2007 000171 R400 R CHIP SA 2007 000171 R402 R CHIP SA 2007 000171 R411 R CHIP SA 2007 000171 R413 R CHIP SA 2007 000171 R419 R CHIP SA 2007 000171 R421 R CHIP SA 2007 000171 R506 R CHIP SA 2007 000171 R518 R CHIP SA 2007 000171 R522 R CHIP SA 2007 000171 R523 R CHIP SA 2007 000171 R524 R CHIP SA 2007 000171 R525...

Page 21: ...IP SA 2007 001333 R502 R CHIP SA 2007 001339 R908 R CHIP SA 2007 003001 R710 R CHIP SA 2007 007008 R715 R CHIP SA 2007 007008 R716 R CHIP SA 2007 007092 R711 R CHIP SA 2007 007100 R903 R CHIP SA 2007 007107 R203 R CHIP SA 2007 007107 R803 R CHIP SA 2007 007107 R807 R CHIP SA 2007 007137 R404 R CHIP SA 2007 007137 R405 R CHIP SA 2007 007137 R407 R CHIP SA 2007 007137 R408 R CHIP SA 2007 007142 R505...

Page 22: ...SA 2203 000311 C614 C CHIP CHIP SA 2203 000330 C117 C CHIP CHIP SA 2203 000386 C116 C CHIP CHIP SA 2203 000386 C902 C CHIP CHIP SA 2203 000425 C219 C CHIP CHIP SA 2203 000425 C317 C CHIP CHIP SA 2203 000425 C343 C CHIP CHIP SA 2203 000425 C500 C CHIP CHIP SA 2203 000425 C502 C CHIP CHIP SA 2203 000425 C518 C CHIP CHIP SA 2203 000425 C519 C CHIP CHIP SA 2203 000425 C900 C CHIP CHIP SA 2203 000438 C...

Page 23: ...SA 2203 000812 C815 C CHIP CHIP SA 2203 000812 C905 C CHIP CHIP SA 2203 000812 R708 C CHIP CHIP SA 2203 000854 C312 C CHIP CHIP SA 2203 000854 C802 C CHIP CHIP SA 2203 000854 C805 C CHIP CHIP SA 2203 000854 C808 C CHIP CHIP SA 2203 000854 C811 C CHIP CHIP SA 2203 000854 C918 C CHIP CHIP SA 2203 000870 C105 C CHIP CHIP SA 2203 000870 C106 C CHIP CHIP SA 2203 000995 C501 C CHIP CHIP SA 2203 000995 C...

Page 24: ...SA 2203 005482 C410 C CHIP CHIP SA 2203 005482 C416 C CHIP CHIP SA 2203 005482 C417 C CHIP CHIP SA 2203 005482 C418 C CHIP CHIP SA 2203 005482 C432 C CHIP CHIP SA 2203 005482 C437 C CHIP CHIP SA 2203 005482 C438 C CHIP CHIP SA 2203 005482 C439 C CHIP CHIP SA 2203 005482 C504 C CHIP CHIP SA 2203 005482 C505 C CHIP CHIP SA 2203 005482 C507 C CHIP CHIP SA 2203 005482 C508 C CHIP CHIP SA 2203 005482 C...

Page 25: ...SA 2203 006048 C503 C CHIP CHIP SA 2203 006048 C529 C CHIP CHIP SA 2203 006048 C615 C CHIP CHIP SA 2203 006048 C616 C CHIP CHIP SA 2203 006048 C800 C CHIP CHIP SA 2203 006048 C801 C CHIP CHIP SA 2203 006048 C803 C CHIP CHIP SA 2203 006048 C804 C CHIP CHIP SA 2203 006048 C806 C CHIP CHIP SA 2203 006048 C807 C CHIP CHIP SA 2203 006048 C813 C CHIP CHIP SA 2203 006048 C814 C CHIP CHIP SA 2203 006257 C...

Page 26: ...SA 2203 006562 C146 C CHIP CHIP SA 2203 006562 C220 C CHIP CHIP SA 2203 006562 C311 C CHIP CHIP SA 2203 006562 C321 C CHIP CHIP SA 2203 006562 C329 C CHIP CHIP SA 2203 006562 C336 C CHIP CHIP SA 2203 006562 C340 C CHIP CHIP SA 2203 006562 C412 C CHIP CHIP SA 2203 006562 C414 C CHIP CHIP SA 2203 006562 C415 C CHIP CHIP SA 2203 006562 C424 C CHIP CHIP SA 2203 006562 C600 C CHIP CHIP SA 2203 006562 C...

Page 27: ...CHIP SA 2203 006838 C604 C CHIP CHIP SA 2203 006838 C909 C CHIP CHIP SA 2203 006838 C914 C CHIP CHIP SA 2203 006838 U406 C CHIP CHIP SA 2203 006841 C337 C CHIP CHIP SA 2203 006841 C338 C CHIP CHIP SA 2203 006842 C115 C CHIP CHIP SA 2203 006890 C516 C CHIP CHIP SA 2203 007147 C335 C CHIP CHIP SA 2203 007195 C334 C CHIP CHIP SA 2404 001225 TA100 C TA CHIP SA 2404 001226 TA405 C TA CHIP SA 2404 00138...

Page 28: ...1 004466 OSC300 CRYSTAL_SMD SA 2801 004466 OSC900 CRYSTAL_SMD SA 2801 004587 OSC100 CRYSTAL_SMD SA 2801 004587 OSC101 CRYSTAL_SMD SA 2801 004682 OSC500 CRYSTAL_SMD SA 2901 001286 F604 FILTER EMI SMD SA 2901 001315 F200 FILTER EMI SMD SA 2901 001408 F500 FILTER EMI SMD SA 2901 001418 F605 FILTER EMI SMD SA 2901 001469 F501 FILTER EMI SMD SA 2901 001469 F502 FILTER EMI SMD SA 2901 001469 F600 FILTER...

Page 29: ...21 RFS100 CONNECTOR COAXIAL SA 3708 002222 CN500 CONNECTOR FPC FFC PIC SA 3709 001392 CD300 CONNECTOR CARD EDGE SA 3709 001447 SIM300 CONNECTOR CARD EDGE SA 3709 001447 SIM900 CONNECTOR CARD EDGE SA 3710 002081 MOT600 SOCKET INTERFACE SA 3710 002499 IFC500 SOCKET INTERFACE SA 3711 005728 HEA601 HEADER BOARD TO BOARD SA 3711 005962 HEA600 HEADER BOARD TO BOARD SA 3711 006137 BTC600 HEADER BATTERY S...

Page 30: ...SAMSUNG Proprietary Contents may change without notice Main Electrical Parts List 6 14 This Document can not be used without Samsung s authorization ...

Page 31: ...7 Block Diagrams 7 1 7 1 Functional Block Diagram ...

Page 32: ...Block Diagrams 7 2 7 2 RF Solution Block Diagram ...

Page 33: ...8 PCB Diagrams 8 1 Main top view ...

Page 34: ...PCB Diagrams 8 2 Main bottom view ...

Page 35: ...Battery Voltage is more than 3 4V Power On does not work Change the Battery END No Yes C323 VISA 2 7V Check the PMU related to VINT No Yes Check the Clock at OSC300 32KHZ Resolder OSC300 No Yes C301 VDD_IO_LOW_1 8V C302 VDD_IO_HIGH_2 9V H Check the related circuit No C335 VDD_GSM_CORE_1 2V 1 2V Check the VDD_GSM_CORE_1 2V circuit No Yes Check the initial operation Yes Yes Yes ...

Page 36: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 2 ...

Page 37: ... Troubleshooting This Document can not be used without Samsung s authorization 9 3 9 2 Initial UCP200 pin C11 RSTON H Initial Failure Check the circuit related to reset END No Yes UCP200 pin F1 RSTEXTn H Yes Yes No Change UCP200 Check the 16bit data signal memory CE Yes ...

Page 38: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 4 ...

Page 39: ...be used without Samsung s authorization 9 5 9 3 Charging Part Check the UPL300 pin 38 4 9V Abnormal charging part END No Yes UPL300 pin 34 AUX_ON L No Yes Check the UPL300 pin 46 1 4V No Yes Check the circuit related to V_EXT_CHARGE_5V Check the circuit related to AUX_ON signal Resolder or replace UPL300 Yes ...

Page 40: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 6 ...

Page 41: ...amsung s authorization 9 7 9 4 Sim Part 1 Master SIM300 pin 1 5 H Phone can t access SIM Card slot1 Resolder or replace UPL300 Check the SIM Card END No Yes Yes Yes No Check the Clock After Power ON Check SIM_CLK_1 Signal on pin3 of SIM300 in a few second Yes No Replace PBA After SIM card insert SIM300 pin 2 H SIM_RST_1 Yes ...

Page 42: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 8 ...

Page 43: ...thout Samsung s authorization 9 9 2 Slave SIM900 pin 1 5 H Phone can t access SIM Card slot2 Resolder or replace UPL900 Check the SIM Card END No Yes Yes Yes No Check the Clock After Power ON Check SIM_CLK_2 Signal on pin3 of SIM900 in a few second Yes No Replace PBA After SIM card insert SIM900 pin 2 H SIM_RST_2 Yes ...

Page 44: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 10 ...

Page 45: ... Microphone Part Check the connection from MIC to Analog s w Check the circuit from UCP200 to MIC Resolder Analog s w U401 U400 Resolder the R400 R402 C401 C403 R401 C402 END No Yes Yes Yes Yes No Check the MIC No Replace MIC Main Key PBA HEA600 Microphone does not work Check the circuit from UCP800 to MIC Resolder the R411 R413 C406 C410 R412 C409 Yes No ...

Page 46: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 12 ...

Page 47: ...Speaker Part Melody U408 pin 7 2 9V Speaker does not work Check input signal is ok When related function operate Resolder C426 C430 L403 L404 R419 R421 C427 C431 No Yes No Check the PMU related to VDD_IO_HIGH_2 9V Yes END Yes Is Speaker working Change the Speaker U407 No Yes Check output signal is ok When related function operate Resolder L401 L402 No Yes ...

Page 48: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 14 ...

Page 49: ...ent can not be used without Samsung s authorization 9 15 9 7 Key Data Input Check Initial Operation Yes When one of the keys is pushed is it displayed on LCD Check the Key PBA Dome sheet Key Pad No Yes When one of the keys is pushed KEY_COL 0 4 KEY_ROW 0 4 signal is OK Replace the PBA No Yes END ...

Page 50: ...ce This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 16 9 8 Receiver Part Receiver does not work Yes No Resolder UCP200 or Change PBA Is Receiver working Yes Is Receiver working Replace the Receiver No Yes END ...

Page 51: ...be used without Samsung s authorization 9 17 9 9 Back Light for Color Main LCD Backlight does not work Yes Is LCD Contrast set on high level in the Menu No Set LCD Contrast on high level Yes Resolder HEA601 or change PBA No HEA601 pin 11 H Yes END check related circuit from UCP200 No Check I2C data is OK Yes ...

Page 52: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 18 ...

Page 53: ...rt of Troubleshooting This Document can not be used without Samsung s authorization 9 19 9 10 Key Back Light Main Key LED does not work Yes No Check the UCP200 related to KEY_ON GPIOA29 U600 pin 3 KEY_ON H Yes Change the U600 U600 pin 1 VDD_KEY_3 3V 3 3V END Yes No ...

Page 54: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 20 ...

Page 55: ... function does not work Yes Check the Camera connector CN500 on LCD module Reconnect the Camera module No CN500 Pin 12 and Pin 14 2 8V Yes Check the UPL300 related to VDD_CAM_IO_2 8V and VDD_CAM_AVDD_2 8V No Yes CN500 Pin 16 1 5V Yes Replace the camera module END Check the UPL300 related to VDD_CAM_CORE_1 5V No Check U503 related to 36MHz No R518 or CN500 pin 3 36MHz Yes Yes ...

Page 56: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 22 ...

Page 57: ...trol circuit Resolder F101 Check Resolder C128 C126 C125 C129 And PMU Part Resolder U100 RX ON RF input CH center freq 67 7kHz Cell Power 60dBm Yes F101 pin13 65dBm No Resolder RFS100 C107 R101 R100 Yes F101 pin1 2 68dBm Check F101 pin9 12 L No No Yes Yes No Resolder C113 C121 L106 U100 pin24 25 70dBm Yes No U100 pin11 12 16 32 33 2 8V pin10 1 8V U100 pin 4 5 6 7 0 2Vp_p No Yes Yes Check UCP200 EN...

Page 58: ...ng 9 24 2 Slave Resolder PAM700 RX ON RF input CH center freq 67 7kHz Cell Power 60dBm Yes PAM700 pin11 65dBm No Resolder RFS700 C705 L700 C711 L702 L704 R701 R702 Yes PAM700 pin7 68dBm No Yes No Resolder U700 U700 pin17 18 70dBm Yes UCP800 pinC6 MOD_STANDBY _S High pinD6 PON_PA_S Low pinA6 BAND_SEL_S Low Yes Check UCP200 END Resolder UCP800 No ...

Page 59: ...l No Change or Resolder F101 Yes U100 pin 11 12 16 32 33 2 8V pin10 1 8V F101 pin13 30dBm Resolder RFS100 C107 R101 R100 TX ON 5Level Check F101 pin12 H 2 6V Pin9 L F101 pin10 30dBm PAM100 pin11 30dBm PAM100 pin7 4dBm Check ANT Switch control circuit Resolder or Change L109 U100 pin 4 5 6 7 0 2Vp_p Yes Check PAM100 pin2 3 4 5 8 is ok Resolder or Change PAM100 Check U100 C128 C126 C125 C129 And PMU...

Page 60: ...be used without Samsung s authorization Flow Chart of Troubleshooting 9 26 2 Slave Resolder PAM700 TX ON 5Level Yes PAM700 pin11 30dBm No Resolder RFS700 C705 L700 C711 L702 L704 R701 R702 Yes PAM700 pin17 0dBm No Yes Resolder U700 U700pin 3 4 5 6 0 2Vp_p Yes Check UCP200 END No ...

Page 61: ... Check UCP200 No No No No No Yes Yes Yes Yes Yes Yes Resolder U100 Check Resolder C128 C126 C125 C129 And PMU Part U100 pin11 12 16 32 33 2 8V pin10 1 8V Resolder C110 C112 L105 Resolder F101 Check ANT Switch control circuit U100 pin22 23 70dBm U100 pin 4 5 6 7 0 2Vp_p F101 pin3 4 68dBm RX ON RF input CH center freq 67 7kHz Cell Power 60dBm Yes No END Resolder RFS100 C107 R101 R100 F101 pin13 65dB...

Page 62: ...g 9 28 2 Slave Resolder PAM700 RX ON RF input CH center freq 67 7kHz Cell Power 60dBm Yes PAM700 pin11 65dBm No Resolder RFS700 C705 L700 C711 L702 L704 R701 R702 Yes PAM700 pin6 68dBm No Yes No Resolder U700 U700 pin15 16 70dBm Yes UCP800 pinC6 MOD_STANDBY _S High pinD6 PON_PA_S Low pinA6 BAND_SEL_S High Yes Check UCP200 END Resolder UCP800 No ...

Page 63: ...00 END No Yes No No No Yes Yes Yes Yes No Yes Yes No No No Check Resolder C128 C126 C125 C129 And PMU Part Check VBAT or PAM control signal Resolder or Change PAM100 Check PAM100 pin2 3 4 5 8 is ok Yes U100 pin 4 5 6 7 0 2Vp_p Resolder or Change C137 Check ANT Switch control circuit Change or Resolder F101 PAM100 pin1 4dBm PAM100 pin17 25dBm F101 pin8 25dBm Check F101 pin9 H 2 6V pin12 L TX ON 0Le...

Page 64: ...be used without Samsung s authorization Flow Chart of Troubleshooting 9 30 2 Slave Resolder PAM700 TX ON 5Level Yes PAM700 pin11 30dBm No Resolder RFS700 C705 L700 C711 L702 L704 R701 R702 Yes PAM700 pin19 0dBm No Yes Resolder U700 U700pin 3 4 5 6 0 2Vp_p Yes Check UCP200 END No ...

Page 65: ...enter freq 67 7kHz Cell Power 60dBm Yes F101 pin13 65dBm No Resolder RFS100 C107 R101 R100 Yes F101 pin5 6 68dBm Check F101 pin9 12 L No No Check ANT Switch control circuit Yes Yes Resolder F101 U100 pin 20 21 70dBm No Resolder C105 C106 L101 Yes U100 pin11 12 17 32 33 2 8V pin10 1 8V U100 pin 4 5 6 7 0 2Vp_p No No Check Resolder C128 C126 C125 C129 And PMU Part Yes Yes Resolder U100 Check UCP200 ...

Page 66: ...200 END No Yes No No No Yes Yes Yes Yes No Yes Yes No No No Check Resolder C128 C126 C125 C129 And PMU Part Check VBAT or PAM control signal Resolder or Change PAM100 Check PAM100 pin2 3 4 5 8 is ok Yes U100 pin 4 5 6 7 0 2Vp_p Resolder or Change C137 Check ANT Switch control circuit Change or Resolder F101 PAM100 pin1 4dBm PAM100 pin17 25dBm F101 pin8 25dBm Check F101 pin9 H 2 6V pin12 L TX ON 0L...

Page 67: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 33 Master Rx Tx ...

Page 68: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 34 ...

Page 69: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 35 Slave Rx Tx ...

Page 70: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 36 ...

Page 71: ...ation 9 37 9 18 Bluetooth part F100 pin 2 4dB Bluetooth does not work C100 position is 1 8V Resolder C100 and check the PMU part No Yes No Resolder or replace C148 ANT100 Yes No END TP107 TP100 TP101 1 8V BT100 pin A5 1 7V 32kHz Check or Replace BT100 Yes Yes C101 C102 is 3 0V Resolder C101 C102 check or Replace BT100 No Yes Check UCP200 Yes ...

Page 72: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 38 ...

Page 73: ...Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 39 9 19 FM Radio part C135 C136 2 9V Radio does not work C131 L107 is OK Resolder C131 L107 No Yes No Resolder C135 C136 and check the PMU part Yes Check UCP200 Yes END Yes ...

Page 74: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 40 ...

Page 75: ...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 76: ...SAMSUNG Proprietary Contents may change without notice Reference data 10 2 This Document can not be used without Samsung s authorization ...

Search results

Summary of Contents for SGH-D780

Reviews:

Related manuals for SGH-D780

Brands by name

Popular brands

Samsung SGH-D780, Service Manual

Search results

Summary of Contents for SGH-D780

Reviews:

Related manuals for SGH-D780

Brands by name

Popular brands