Samsung SGH-Z720 Service Manual Download

Page: 1 / 88

UMTS TELEPHONE

SGH-Z720

UMTS TELEPHONE

CONTENTS

Safety Precautions

Specification

Product Function

Array course control

Exploded View/Disassembly

and Assembly Instructions

MAIN Electrical Parts List

Block Diagrams

PCB Diagrams

Flow Chart of Troubleshooting

10.

Reference data

Summary of Contents for SGH-Z720

Page 1: ...TS 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: ...r Class 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 Parts list 5 2 5 3 Disassembly and Assembly Instructions 5 4 6 MAIN Electrical Parts List 7 Block Diagrams 7 1 RF Solution Block Diagram 7 1 7 2 Logic Block Diagram 7 2 8 PCB Diagrams ...

Page 3: ... 9 10 9 7 Earphone Part 9 12 9 8 Speak Part 9 14 9 9 Key Data Input 9 16 9 10 LCD Part 9 17 9 11 Camera Part 9 19 9 12 LCD Back Light 9 21 9 13 Key Back Light 9 23 9 14 GSM Receiver 9 25 9 15 GSm Transmitter 9 27 9 16 DCS Receiver 9 29 9 17 DCS Transmitter 9 31 9 18 PCS Receiver 9 33 9 19 PCS Transmitter 9 35 9 20 WCDMA Receiver 9 37 9 21 WCDMA Transmitter 9 39 10 Reference data ...

Page 4: ...be 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 smal...

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: ...2 9888 DL 10562 10838 Tx Rx spacing 45MHz 95MHz 80MHz 190MHz Mod Bit rate Bit Period 270 833kbps 3 692us 270 833kbps 3 692us 270 833kbps 3 692us 3 84Mcps Time Slot Period Frame Period 576 9us 4 615ms 576 9us 4 615ms 576 9us 4 615ms Frame length 10ms Modulation 0 3GMSK 0 3GMSK 0 3GMSK QPSK HQPSK MS Power 33dBm 5dBm 30dBm 0dBm 30dBm 0dBm 24dBm 50dBm Power Class 4 max 33dBm 1 max 30dBm 1 max 30dBm 3 ...

Page 7: ... 2 dBm 16 11 3 dBm 17 9 3dBm 18 7 3 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 1...

Page 8: ... Mega with Auto Focus CMOS VGA 2 1 LCD QVGA 262K TFT Video Telephony Streaming Bluetooth V2 0 Wireless Technology USB 1 1 MP3 player Downloadable Game via JAVA Sending Photo Video by MMS or E Mail Supporting 64 Polyphonic Ring Tone WAP 2 0 Browser Including xHTML WCSS MP w HTTP External Memory Card Socket T flash GSM 900MHz DCS1800MHz 1900MHz WCDMA 2100MHz GPRS Class 10 EGPRS Class E2 ...

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: ...not be used without Samsung s authorization 4 1 Software Adjustments 1 JIG Download Trace Calibration etc 2 RF test cable RF test 3 Test cable JIG to phone 4 TA Travel Adaptor 5 Data Link Cable USB cable 6 Serial cable PC to JIG 1 6 5 2 4 3 2 GH80 03308A GH39 00397A GH39 00444A GH44 01361A GH39 00478A ...

Page 11: ...downloading Z720 amss bin Modem binary for communication function Mocha binary for user interface and various application Rsrc_Z720_ rc1 Files need for each application Rsrc2_Z720 Low rc2 Power on off animation FactoryFS_Z720_ ffs Default file system to be put into in initial production 4 2 2 Pre requsite for Downloading Downloader Program FastMultiLoader V3 28 exe SGH Z720 Mobile Phone USB Data L...

Page 12: ...thorization 4 2 3 S W Downloader Program 1 Boot the Z720 by pressing Power ON key Number 9 key at the same time If you do properly you can see the following message on LCD DOWNLOAD 2 Load the binary download program by executing the FastMultiLoader V3 28 exe And then Check the 6275 3 Select the check box what you want to download ...

Page 13: ...ietary Contents may change without notice Array course control 4 4 This Document can not be used without Samsung s authorization 4 Select the binary file what you want to download 5 Now press the button Port Search ...

Page 14: ... Array course control 4 5 This Document can not be used without Samsung s authorization 6 Now press the button Download 7 When downloading is complete UE reboot automatically If there is difference in FactoryFs bin UE will format file system automatically ...

Page 15: ...SAMSUNG Proprietary Contents may change without notice Array course control 4 6 This Document can not be used without Samsung s authorization ...

Page 16: ... authorization 5 Exploded View Disassembly Assembly Instructions 5 1 Cellular Phone Exploded View QMW01 QFR01 QIF01 QSD01 QVO01 QCK02 QBR03 QCR17 QBR01 QMP01 QCR04 QBA01 QFU01 QKP02 QME03 QFL01 QHI01 QCR17 QSC06 QCR04 QSC05 QME02 QCA01 QLC01 QKP01 QME01 QAN02 QMI01 QCR05 QCK01 QRE01 QSC13 QSC14 QRE05 QBA00 ...

Page 17: ...NE 6001 001460 QFL01 ASSY CASE SLIDE LOWER GH98 01730A QFU01 ASSY CASE SLIDE UPPER GH98 01729A QHI01 ASSY ACCE PUSH ROD GH98 01237A QKP01 ASSY KEYPAD MAIN EU BLK GH98 02672A QKP02 ASSY KEYPAD SUB EU BLK GH98 02671A QLC01 LCD MAINSGH Z720 GH07 00963A QME01 UNIT KEY FPCB GH59 03394A QME02 UNIT MODULE SPEAKER GH59 03789A QME03 MEA SLIDE FPCB KIT GH97 06865A QMI01 MICROPHONE ASSY SGHE340 GH30 00199A Q...

Page 18: ...EL P WATER SOAK GH68 02026A LABEL R MAIN EU GH68 12699A MANUAL USERS EU SPANISH GH68 13029A BOX UNIT XEC GH69 04521B CUSHION CASE EU GH69 04522A ICT BRACKET VOL KEY GH70 01550A RMO RUBBERMIC HOLDER GH73 08696A MPR VINYL BOHO MAIN WINDOW V2 GH74 26156A MPR INSU TAPE GH74 27529A MPR TAPE GH74 27536A MPR TAPE GH74 27537A MPR ELEC TAPE LCD CONN BOT GH74 27539A MPR TAPE WIN MAIN GH74 27546A MPR INSU TA...

Page 19: ... Rear cover Removal Open the rear cover from the lower with ease Volume key Bracket Screw Removal Remove the volume key bracket screw Volume key Bracket Removal Remove the volume key bracket without getting bent Side key Removal 1 Remove the volume key 2 Remove the Switch key Camera key Removal Remove the camera key 1 2 3 5 4 6 Camera key 5 3 Disassembly and Assembly Instructions Disassembly Volum...

Page 20: ...by lifting up Please handle the main PBA with care not too much force on it MAIN F PCB Connector Removal Lift up the main F PCB connector with the arrow direction like the picture Be careful not to rumple and tear it When handling F PCB Front Conduction Tape Removal Remove the front conduction Tape Shield Cover Removal Remove the shield cover by lifting up Be careful not to rumple and tear the Gas...

Page 21: ...lide a little bit 2 Remove the slide Ass y screw 2 points Slide Lower Screw Removal 1 Slide up only half of 3 4 Key part like the picture 2 Remove two unconcealed screws Slide Ass y Front Unlocking Unlock the 4 locking points with an unlocking stick Slide Ass y Front Separation Separate the slide upper and the slide lower after unlocking Front Hole Adjustment Adjust the slide lower hole to the fro...

Page 22: ...n F PCB from the hole Be careful not to rumple and tear it When handling F PCB Slide Lower Front Separation Lift up the lower like pictures when the slide lower and the front is combined Conduction Tape Removal Remove the conduction tape between the LCD module and the menu key Untied Prevention Tape Removal Remove the untied prevention tape from the speaker connector and the camera connector 19 22...

Page 23: ...he base tape drawing out the camera F PCB Speaker Module Separation Separate the speaker module from the slide upper by lifting up with the arrow direction 3 Mega Camera Module Separation Separate the 3M camera module from the slide upper by lifting up with the arrow direction Be careful not to touch or damage the Camera lens when pulling out the 3 Mega Camera VGA Camera Module Separation Separate...

Page 24: ... the LCD module from the upper like the picture Be careful not to lift it up suddenly with too much force That could cause LCD crack Intenna Screw Removal Remove the intenna screw from the PBA Intenna Contact Re soldering Solder the intenna contact points Intenna Removal Separate the intenna body from the PBA with melting lead state Be careful not to break or bend the intenna contact Completely se...

Page 25: ... line Slide Camera FPCB Tape Attachment 1 Attach the fixing tape of slide FPCB within the silk line 2 Attach the fixing tape of camera FPCB within the silk line Camera Speaker Assembly 1 Remove the protection paper of camera FPCB fixing tape 2 Insert the FPCB up to the guide line With regard to the insertion direction of camera and then close the locker 3 Insert the FPCB up to the guide line With ...

Page 26: ...move the protection paper from the double fixing tape of slide FPCB 2 Insert the slide FPCB into the connector within the silk guide line on PBA 3 Hook up the connector 4 Attach the insulating tape to prevent the loosing of connector within the silk guide line 5 Fold up the edge by using your fingers Attach the untied prevention tape without bubble Attach the extraneous matters at the right positi...

Page 27: ...A CAMERA LENS protection vinyl 2 Remove the LCD protection vinyl 3 Remove the Backside Window protection vinyl 4 Place the LCD at SLIDE UPPER then hook the SUB PBA to the HOOKER and push the side part of SUB PBA to assemble SLIDE UPPER 5 Assemble 3MEGA CAMERA VGA CAMERA 6 Assemble SPEAKER 7 Remove 3MEGA CAMERA LENS protection vinyl Assemble CAMERA prior to SPEAKER assembly Attach LCD conductive TA...

Page 28: ...bring Lower to the end to fix hinge Removing 3Mega CAMERA WINDOW protection vinyl and SLIDE ASS Y Assembly 1 Remove 3MEGA CAMERA WINDOW protection vinyl 2 Match the FPCB insertion hole of both SLIDE LOWER and FRONT 3 Insert the FPCB through insertion hole to assemble SLIDE UPPER and FRONT 4 Push FRONT up to where it was Finish assembling by sliding the lower to the end Mind the direction of the hi...

Page 29: ... CARD COVER EAR PHONE COVER Placing the Main key pad 1 Check the printed condition of the MAIN KEYPAD 2 Place the MAIN KEYPAD View Fig 1 Shield Can Assembly Assemble the Shield Can just like in the picture above Be careful not to rumple and tear the Gasket When assembling the shield cover Place VOLUME KEY SWITCH KEY Place both VOLUME KEY and SWITCH KEY VOL KEY BRACKET Assemble VOL KEY BRACKET usin...

Page 30: ...B Assembly 1 Put the PBA on the FRONT 2 Close the Key FPCB connector Camera key Assembly Insert the camera key into the hole Assembling the Rear Put this on the screw JIG and then drive the Screw in order SCREW SIZE 1 4 4 0 2 5 Rear Screw Cap Insertion 1 Insert the screw cap of left side 2 Insert the screw cap of right side 3 Press the screw caps by using screw cap JIG 21 20 23 22 25 Conduction Ta...

Page 31: ...SAMSUNG Proprietary Contents may change without notice Exploded View Disassembly Assembly Instructions 5 16 This Document can not be used without Samsung s authorization ...

Page 32: ...A C121 C CER CHIP 2203 005682 SA C122 C CER CHIP 2203 006423 SA C123 C CER CHIP 2203 006123 SA C124 C CER CHIP 2203 005719 SA C125 C CER CHIP 2203 005682 SA C126 C CER CHIP 2203 005682 SA C127 C CER CHIP 2203 005806 SNA C128 C CER CHIP 2203 006194 SA C129 C CER CHIP 2203 005682 SA C130 C CER CHIP 2203 005719 SA C131 C CER CHIP 2203 006556 SA C132 C CER CHIP 2203 006556 SA C133 C CER CHIP 2203 0068...

Page 33: ...CER CHIP 2203 005736 SA C222 C CER CHIP 2203 006838 SA C223 C CER CHIP 2203 006846 SA C224 C CER CHIP 2203 006426 SNA C225 C CER CHIP 2203 005736 SA C226 C CER CHIP 2203 005736 SA C227 C CER CHIP 2203 006423 SA C228 C CER CHIP 2203 006838 SA C229 C CER CHIP 2203 006426 SNA C230 C CER CHIP 2203 006846 SA C231 C CER CHIP 2203 005736 SA C232 C CER CHIP 2203 005736 SA C233 C CER CHIP 2203 006120 SA C2...

Page 34: ...CER CHIP 2203 006423 SA C341 C CER CHIP 2203 006194 SA C343 C CER CHIP 2203 006423 SA C344 C CER CHIP 2203 006423 SA C345 C CER CHIP 2203 006423 SA C346 C CER CHIP 2203 006423 SA C348 C CER CHIP 2203 006423 SA C349 C CER CHIP 2203 006423 SA C350 C CER CHIP 2203 006617 SA C351 C CER CHIP 2203 006423 SA C352 C CER CHIP 2203 006423 SA C353 C CER CHIP 2203 006617 SA C354 C CER CHIP 2203 006423 SA C355...

Page 35: ...CER CHIP 2203 006562 SA C427 C CER CHIP 2203 006824 SA C428 C CER CHIP 2203 000438 SA C429 C CER CHIP 2203 006824 SA C430 C CER CHIP 2203 000438 SA C431 C CER CHIP 2203 006423 SA C432 C CER CHIP 2203 005682 SA C433 C CER CHIP 2203 005682 SA C435 C CER CHIP 2203 000438 SA C436 C CER CHIP 2203 006824 SA C437 C CER CHIP 2203 006824 SA C438 C CER CHIP 2203 006048 SA C439 C CER CHIP 2203 006048 SA C440...

Page 36: ...CHIP 2203 005682 SA C608 C CER CHIP 2203 006562 SA C609 C CER CHIP 2203 006562 SA C610 C CER CHIP 2203 006562 SA C611 C CER CHIP 2203 006562 SA C613 C CER CHIP 2203 006562 SA C614 C CER CHIP 2203 005682 SA C615 C CER CHIP 2203 005717 SA C616 C CER CHIP 2203 005717 SA C617 C CER CHIP 2203 005717 SA C700 C CER CHIP 2203 006562 SA CD700 CONNECTOR CARD EDGE 3709 001344 SA D400 DIODE ARRAY 0407 001002 ...

Page 37: ... L131 INDUCTOR SMD 2703 002798 SNA L133 INDUCTOR SMD 2703 002958 SA L200 INDUCTOR SMD 2703 003004 SA L201 INDUCTOR SMD 2703 002649 SNA L203 INDUCTOR SMD 2703 002917 SA L204 INDUCTOR SMD 2703 003004 SA L205 INDUCTOR SMD 2703 002906 SA L206 INDUCTOR SMD 2703 002903 SA L207 INDUCTOR SMD 2703 002906 SA L208 INDUCTOR SMD 2703 002176 SA L209 BEAD SMD 3301 001756 SA L210 INDUCTOR SMD 2703 002313 SA L211 ...

Page 38: ... CHIP 2007 008542 SA R131 R CHIP 2007 008055 SA R132 R CHIP 2007 009171 SA R200 R CHIP 2007 008045 SA R201 R CHIP 2007 009212 SA R202 R CHIP 2007 008043 SA R203 R CHIP 2007 008045 SA R204 R CHIP 2007 007491 SA R205 R CHIP 2007 008531 SA R207 R CHIP 2007 008531 SA R300 R CHIP 2007 007741 SA R301 R CHIP 2007 000137 SA R302 R CHIP 2007 008419 SA R305 R CHIP 2007 007318 SA R308 R CHIP 2007 007314 SA R...

Page 39: ...12 R CHIP 2007 008542 SA R700 R CHIP 2007 008055 SA R701 R CHIP 2007 008516 SA R702 R CHIP 2007 008516 SA R703 R CHIP 2007 008516 SA R704 R CHIP 2007 000166 SA R705 R CHIP 2007 008055 SA RFS100 CONNECTOR COAXIAL 3705 001358 SA SIM400 CONNECTOR CARD EDGE 3709 001400 SA TA100 C TA CHIP 2404 001474 SA TA200 C TA CHIP 2404 001381 SA TA300 C TA CHIP 2404 001377 SA TA400 C TA CHIP 2404 001381 SA TA500 C...

Page 40: ...177 SA VR601 VARISTOR 1405 001177 SA VR602 VARISTOR 1405 001177 SA VR603 VARISTOR 1405 001177 SA VR604 VARISTOR 1405 001177 SA VR605 VARISTOR 1405 001177 SA VR606 VARISTOR 1405 001177 SA VR607 VARISTOR 1405 001177 SA VR608 VARISTOR 1405 001177 SA VR609 VARISTOR 1405 001177 SA VR610 VARISTOR 1405 001177 SA VR611 VARISTOR 1405 001177 SA VR612 VARISTOR 1405 001177 SA VR613 VARISTOR 1405 001177 SA VR6...

Page 41: ...SAMSUNG Proprietary Contents may change without notice Main Electrical Parts List 6 10 This Document can not be used without Samsung s authorization ...

Page 42: ...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 43: ...SAMSUNG Proprietary Contents may change without notice Block Diagrams This Document can not be used without Samsung s authorization 7 2 7 2 Logic Block Diagram ...

Page 44: ...8 PCB Diagrams 8 1 Top ...

Page 45: ...PCB Diagrams 8 2 Bottom ...

Page 46: ...ot work Change the Battery END No Yes U401 PIN57 PS_HOLD 2 6V Check the PMU related to PS_HOLD No Yes Check the Clock at OSC400 32 768KHZ Resolder OSC400 No Yes L400 VREG_MSMC 1 37V Check the PMIC No Yes L401 VREG_MSME 1 8V C424 VREG_MSMP 2 6V C422 VREG_MSMA 2 6V C411 VREG_TCXO 2 8V Check the PMIC No Yes Check for the clock at C405 19 2 MHz Check the clock generation circuit TCX200 No Yes Check th...

Page 47: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 2 Power On ...

Page 48: ...ooting This Document can not be used without Samsung s authorization 9 3 9 2 Initial PON_RESET_N H Initial Failure Check the circuit related to reset END No Yes Is TP303 313 OK OK Not OK Yes Check the circuit related to memory Check the circuit around LCD HDC600 short or unsolder ...

Page 49: ...hout notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 4 9 3 Charging Part C608 5V Abnormal charging part END No Yes U403 pin6 L No Yes Resolder IFC600 Replace U403 Yes Check the Battery TA Yes ...

Page 50: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 5 ...

Page 51: ...rization Flow Chart of Troubleshooting 9 6 9 4 SIM Part R408 H Phone can t access SIM Card Check the SIM POWER Check the SIM Card END No Yes Yes Yes No Check the 32 768 kHz OSC After Power ON Check SIM_CLK Signal on SIM400 pin3 in a few second Yes No Replace PBA After SIM card insert SIM400 pin 2 H SIM_RST OK ...

Page 52: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 7 ...

Page 53: ...without Samsung s authorization Flow Chart of Troubleshooting 9 8 9 5 Microphone Part Phone MIC Check the connection from MIC Check the circuit from UCP300 to MIC Resolder MIC Resolder the R500 END Not OK Yes OK OK OK Not OK Check the MIC Not OK Replace the MIC Microphone does not work ...

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

Page 55: ...rization Flow Chart of Troubleshooting 9 10 9 6 Microphone Part Earphone MIC Earphone mic does not work Yes Not OK Check the connection from IFC600 Resolder IFC600 pin 3 4 Yes Change a Earphone Is Earphone MIC working OK OK Resolder R502 C515 C520 Check the circuit from IFC300 pin 3 4 to UCP300 END Not OK No ...

Page 56: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 11 ...

Page 57: ...When MP3 file is played Check UCP300 END No Yes Yes Earphone does not work Replace the Earphone No Yes Is Earphone working No Resolder U501 C535 C538 Yes Yes No Resolder IFC600 IFC600 pin 5 7 short Yes U501 pin 1A 2A 100mV When MP3 file is played No Resolder U500 U500 pin 5 6 200mV When MP3 file is played OK Resolder L600 L601 L602 Check the circuit from IFC600 pin 5 6 7 to U500 Not OK ...

Page 58: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 13 ...

Page 59: ...Part C534 C536 2V When MP3 file is played Speaker does not work U501 Pin 1A 2A 2V When MP3 file is played Resolder U501 C534 C536 END No Yes No Check UCP300 HDC600 Pin 56 58 2V When MP3 file is played Resolder U500 Yes No Check the signals of speaker input Check the circuit related to melody signal Yes No signal Is Speaker working No OK Change the Speaker Yes Yes ...

Page 60: ...SAMSUNG Proprietary Contents may change without notice Flow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 15 ...

Page 61: ...ng s authorization Flow Chart of Troubleshooting 9 16 9 9 Key Data Input When one of the main keys is pushed is it displayed on LCD Check the Dome sheet and Key Fpcb END No Yes Yes Check Initial Operation When one of the Navi keys is pushed dose it work well Check the Dome sheet and LCD FPCB No Yes ...

Page 62: ...ument can not be used without Samsung s authorization 9 17 9 10 LCD part END Replace the LCD Module Yes OK LCD is always Black Yes No Check HDC600 F602 F603 F604 F605 Replace U601 No No Pin 16 LCD_VDD_2 8V at HDC600 is 2 8V Yes Backlight Navi key are ok Replace Slide FPCB Yes LCD does not work ...

Page 63: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 18 ...

Page 64: ...n 9 19 9 11 Camera part Camera function does not work Yes No Connect the camera module Check the Camera connector on LCD module Yes HDC600pin 12 14 3 6 4 2V No Check TR601 Yes HDC600 Pin 10 19 43 H for VGA No Check UCP300 HDC600 Yes HDC600 Pin 8 43 H for 3MEGA Yes No Check UCP300 HDC600 Is there another problem END Replace the camera module Yes ...

Page 65: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 20 ...

Page 66: ... can not be used without Samsung s authorization 9 21 9 12 LCD Back Light Yes Is BACKLIGHT set AlwaysON in the Menu Yes Backlight does not work No Set BACKLIGHT on AlwaysON No Replace or Resolder TR601 C600 3 3V Yes Replace the LCD Module Yes END HDC600 Pin41 H Yes No Check UCP300 HDC600 Slide FPCB ...

Page 67: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 22 ...

Page 68: ...shooting This Document can not be used without Samsung s authorization 9 23 9 13 Key Back Light Key Backlight does not work Yes Is BACKLIGHT set AlwaysON in the Menu No Set BACKLIGHT on AlwaysON Yes HDC700 pin 8 3 3V Yes No Replace or Resolder U600 Replace the Key FPCB Yes END ...

Page 69: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 24 ...

Page 70: ...n not be used without Samsung s authorization 9 25 9 14 GSM Receiver C100 65dBm Resolder RFS100 END No Yes RX ON RF input CH center freq Amp 50dBm C130 65dBm U101 pin 11 12 13 14 500mV L116 70dBm Resolder F102 Resolder U101 or Check pins related to U101 Yes Yes Yes Yes No No No Check U101 Resolder U100 ...

Page 71: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 26 ...

Page 72: ...nt can not be used without Samsung s authorization 9 27 9 15 GSM Transmitter TX ON 5 Level Yes R126 2 5V Cheak PMIC Yes No VCO100 pin1 2dBm Yes Resolder VCO100 Resolder PAM100 Replace U100 ASM Check VCO100 U101 No No Yes No U100 ASM pin13 20dBm No C100 25dBm Yes R124 0 2V Yes Check UCP300 MSM END ...

Page 73: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 28 ...

Page 74: ...ow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 29 9 16 DCS Receiver RX ON RF input CH center freq Amp 50dBm C124 60dBm Yes No Resolder U100 ASM No Resolder F101 DCS SAW Yes L112 65dBm Yes Resolder U101 RTR6250 END ...

Page 75: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 30 ...

Page 76: ... This Document can not be used without Samsung s authorization 9 31 9 17 DCS Transmitter VCO100 pin7 2 5V Cheak PMIC TX ON 0 Level VCO100 pin5 2dBm PAM100 pin15 15dBm U100 pin 22 20dBm Resolder VCO100 Resolder PAM100 Yes No No No Yes Yes Yes No Yes END Check UCP300 MSM Replace U100 ASM ...

Page 77: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 32 ...

Page 78: ...ow Chart of Troubleshooting This Document can not be used without Samsung s authorization 9 33 9 18 PCS Receiver RX ON RF input CH center freq Amp 50dBm C117 60dBm Yes No Resolder U100 ASM No Resolder F100 PCS SAW Yes L108 65dBm Yes Resolder U101 RTR6250 END ...

Page 79: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 34 ...

Page 80: ...g This Document can not be used without Samsung s authorization 9 35 9 19 PCS Transmitter VCO100 pin7 1V Cheak PMIC TX ON 0 Level VCO100 pin5 2dBm PAM100 pin15 15dBm U100 pin 22 20dBm Resolder VCO100 Resolder PAM100 Yes No No No Yes Yes Yes No Yes END Check UCP300MSM Replace U100 ASM ...

Page 81: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 36 ...

Page 82: ... of Troubleshooting This Document can not be used without Samsung s authorization 9 37 9 20 WCDMA Receiver C208 65dBm Cheak and resolder DUF200 RX ON C218 55dBm C216 60dBm Cheak and resolder U201 LNA Resolder F201 SAW Yes No No No Yes Yes Yes END Replace U201 RFR6250 ...

Page 83: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 38 ...

Page 84: ...ting This Document can not be used without Samsung s authorization 9 39 9 21 WCDMA Transmitter C230 5dBm Cheak U101 RTR6250 TX ON PDM for 23dBm L215 5dBm L203 20dBm C205 20dBm Resolder F200 WTX SAW Resolder PAM200 Yes No No No Yes Yes Yes No Yes END Check UCP300 MSM Resolder DUF200 ...

Page 85: ...SAMSUNG Proprietary Contents may change without notice This Document can not be used without Samsung s authorization Flow Chart of Troubleshooting 9 40 ...

Page 86: ...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 87: ...SAMSUNG Proprietary Contents may change without notice Reference data 10 2 This Document can not be used without Samsung s authorization ...

Page 88: ...msung Electronics Co Ltd 2006 11 Rev 1 0 ⓒ 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 ...

Search results

Summary of Contents for SGH-Z720

Reviews:

Related manuals for SGH-Z720

Brands by name

Popular brands

Samsung SGH-Z720, Service Manual

Search results

Summary of Contents for SGH-Z720

Reviews:

Related manuals for SGH-Z720

Brands by name

Popular brands