Voxtel V310 Service Manual Download Page 28 | Manualshive

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5-5

Troubleshooting

5.5 LCD Trouble

NO

YES

LCD display is not working.

Is LCD module connected

property to the LCD connector

on the PCB?

LCD connector is

well soldered onto

PCB?

NO

YES

The LCD driver

source voltage is 2.85V

(U701:PIN5)?

NO

YES

Replace LCD module.

END

Reassemble LCD module.

Re-solder the LCD connector.

Replace U701.

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Summary of Contents for V310

Page 1: ...GPRS PHONE SERVICE MANUAL MODEL V310 ...

Page 2: ...Rev 1 00 ...

Page 3: ...t Download Procedure 4 1 4 1 Data Kit 4 1 4 1 1 Download Equipment 4 1 4 1 2 Download Procedure 4 1 5 Troubleshooting 5 1 5 1 Power On Trouble 5 1 5 2 MIC Trouble 5 2 5 3 Receiver Trouble 5 3 5 4 Melody Trouble 5 4 5 5 LCD Trouble 5 5 5 6 Charge Trouble 5 6 5 7 Vibrator Trouble 5 7 5 8 Backlight Trouble 5 8 5 9 SIM Detection Trouble 5 9 5 10 Ear Phone Trouble 5 10 5 11 Camera Trouble 5 11 5 12 TX ...

Page 4: ... Main Board 7 2 7 2 1 Chipset Calypso IOTA 7 2 7 2 2 Memory Melody Charger 7 3 7 2 3 Audio 7 4 7 2 4 I O B d to LCD Connector SIM Interface 7 5 7 2 5 Camera 7 6 7 3 RF Schematic 7 7 7 3 1 RF Pam 7 7 7 3 2 RF Main IC 7 8 8 PCB Diagram 8 1 8 1 Main PCB 8 1 9 Electrical Part List 9 1 9 1 Circuit Part List 9 1 9 2 Mechanical Part List 9 8 ...

Page 5: ...n band of GSM 900 and DCS 1800 GPRS Class 10 II features are fully supported and parts of the GSM Phase II features are also supported About the SIM Toolkit V310 supports up to Class 3 including Class 1 2 For speech communication V310 supports Full Rate FR Enhanced Full Rate EFR and Half Rate HR For easy text eZi Text is implemented and WAP protocol is adopted for internet connection ...

Page 6: ...1 2 Introduction Memo ...

Page 7: ...MHz DCS 1800 TX 1710 1785 MHz DCS 1800 RX 1805 1880 MHz Battery Capacity Standard Li ion 720 mAh Display Full graphic type Dual LCD Main 65k TFT Color LCD Pixels 128 x 160 Ext 65k Color STN LCD Pixels 96 x 96 3 Color LED Indicator Antenna Fixed type PC synchronization Applied Speech coding FR EFR HR Data Fax Built in Vibrator Built in Dual Speaker Applied 40 poly Portable Handsfree Ear Phone Built...

Page 8: ...box Draft Template SMS MMS Info Message Voice Center Message Settings Memory Status Missed No Received No Call History Dialed No Last Incoming Last Outgoing Total incoming Call Duration Reset Call Costs Call Register GPRS Counter General Silent Vibration Only Outdoor Headset Other1 Profile Other2 ...

Page 9: ...nd My Caller ID Answer Mode Min Minder Auto Redial Auto Answer Call Setting Data Transfer Mode Language MainLCD SubLCD Backlight Screen Saver Phone Setting LED Select PIN Code Phone Lock Call Barring Fixed Dial Number Closed User Group Security Setting Change Codes GPRS Setting GPRS Session Automatic Manual Network Select Preferred List Setting Factory Set ...

Page 10: ...ew Weekly view Monthly view Add Event Delete All Setting Scheduler To Do Memory Status Organizer File Manager File List Shooting Special Effect Image Album Album PBook album Shutter Sound Album Lock Set Save Name Camera Configuration Auto Save Othello Calculator Unit Converter World Time Application Voice Memo Downloads Java Memory Status ...

Page 11: ... 5 Specification Main menu Sub menu Detail item Homepage Bookmarks Recent Pages Enter Address Resume Edit Homepage Select Profile Connection Browser Options Rename Profile Internet Settings Cache SIM AT ...

Page 12: ... 3 1 Before Disassembly 1 Remove the battery To do so Pull the battery lock above the battery toward the top of the phone and hold it in the position Lift the battery away 2 Remove the SIM card To do so Remove the SIM card as shown ...

Page 13: ...me 1 Remove Four screws on the back of the phone 2 Insert a small type driver between the front case the rear case and lift up the front case 3 Now you can replace the PCBs and the other components Key Pad Main PCB Folder Upper Case Rear case ...

Page 14: ...Remove the rear case as described at Steps 1 and 2 under Main Frame Disassembly on page 3 2 2 Unplug the connector shown at right from the main PCB 3 Unhook the folder from the main frame 4 Remove two screws from the folder Connector Main PCB ...

Page 15: ...ly Instruction 5 Insert a small type driver between the folder upper and the folder lower and lift up the folder upper 6 Now you can remove the LCD ass y and the other components LCD ass y Folder upper Folder lower ...

Page 16: ...3 5 Disassembly Instruction 3 4 Exploded View and Parts List 3 4 1 Exploded View Main ...

Page 17: ...3 6 Disassembly Instruction 3 4 2 Exploded View Folder ...

Page 18: ...S Y CAMERA WINDOW CAMERA WINDOW DECO COVER EAR JACK SIM COVER TAPE CAMERA WINDOW DECO KNOB LOCK SPRING KNOB SCREW MAIN LOCKER SIM RUBBER RF 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 4 1 1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 DECO SPEAKER INNET SPEAKER TAPE SPEAKER WINDOW MAIN TAPE MAIN WINDOW COVER SCREW SCREW FOLDER MAGNET FOLDER LOWER SHIELD F...

Page 19: ...T To download software of V310 the following environments should be Prepared V310 download cable Interface JIG is connected to serial port of the desktop or notebook PC V310 download fluid program is copied to the desktop or notebook PC Target software is downloaded to the V310 mobile phone Warning You must use the download cable kit Interface JIG and UART download monitor program Otherwise downlo...

Page 20: ...xecute fluid_gui exe And then select Global settings tab Then choose a correct serial port in the RS232 serial port Box Figure 1 Figure 1 3 To download software you must add the target software in the Erase Program flash tab So Push the Add button then choose the target software that you want to download Figure 2 ...

Page 21: ...4 3 Data Kit Download Procedure 4 Select the Boot in flash in the Programming options box Figure 3 5 Push the Erase Program button to download Figure 4 ...

Page 22: ...following window show in Figure 5 is displayed connect V310 phone to the download cable Interface JIG and press power on key of V310 If the connection succeeded the following screen will show the contents as shown in Figure 6 Figure 5 Figure 6 ...

Page 23: ...4 5 Data Kit Download Procedure 7 If the downloading procedure is succeeded then the following window is shown Figure 7 ...

Page 24: ...el of battery voltage is higher than 3 4V NO YES Check the level of TP513 ON OFF The level of TP513 as high as 1 5V YES Then the phone is powered on properly Check the LCD module END Check the battery Charge the battery Power on sequence is not executed properly Try again If the result is same change U501 chipset NO ...

Page 25: ...the Phone to Wireless Communication Test Set 8960 or CMU 200 Check the C610 voltage The voltage is 2 4V NO YES A few hundreds mV of AC signal levels are measured Check the connectivity of MIC component END Check the connectivity of R609 Check the C607 C608 voltage ...

Page 26: ...al level at the CN301 pin 15 16 after putting audio signal in MIC A few hundreds mV of AC signal levels are measured Check the signal level at the U602 pin 5 6 and R601 after putting audio signal Replace U501 NO YES A few hundreds mV of AC signal levels are measured Check the receiver END Replace U602 R601 which does not have proper level ...

Page 27: ...nnectivity of Speaker The connection is OK Check the signal level of SPK and SPK while the melody is being played Check whether the melody signal is out from Pin 17 18 of U405 Connect the Speaker to the phone properly Check the level of C406 Level is VBAT Replace U405 END NO YES ...

Page 28: ... working Is LCD module connected property to the LCD connector on the PCB LCD connector is well soldered onto PCB NO YES The LCD driver source voltage is 2 85V U701 PIN5 NO YES Replace LCD module END Reassemble LCD module Re solder the LCD connector Replace U701 ...

Page 29: ...o the phone YES NO Replace the battery pack NO Replace the defective TA NO The battery voltage is between 3 4V 4 2V YES TA voltage is equal to 5 2V 600mA YES CN300 is well connected to PCB Re mount CN300 NO Q401 Pin1 Pin7 voltage is higher than 4 0V Replace Q401 NO R411 voltage is lower than 3 4V Replace R411 NO YES YES YES Re download S W END ...

Page 30: ...Test then select Vibrator Mode U405 Pin 19 voltage Level is higher than 3V Replace U405 Check the Signal level at the U402 Pin 3 NO YES U402 Pin 3 voltage is 0V when Vibrator operated NO YES Check CN301 Pin 26 If CN301 Pin 26 is well connected then replace Vibrator Replace U402 END ...

Page 31: ...2 Replace battery R700 701 702 is well connected Voltage value of LED is same as the voltage value of battery Replace D700 D709 U702 pin3 6 voltages level are higher than 0 7V Re solder U702 R707 is well connected R704 is well connected Re mount R707 Re mount R704 END END NO NO YES YES NO YES NO NO YES YES Note To enter the Test mode press 789 on the phone then hold down key ...

Page 32: ...tion Trouble SIM Detection is not working Check the voltage of CN302 Pin 1 7 Level is 1 8V or 2 85V Check the voltage level of CN302 Pin3 when power is ON Replace U501 Level is 1 8V or 2 85V Check the SIM Replace U501 END NO YES NO YES ...

Page 33: ...le Ear Phone is not working NO YES Check each Resistance value of F500 F501 Each Resistance value is Below 10Ω Connect the phone to Wireless communication Test set Check the ear phone And check the audio path Replace U501 END Replace F500 F501 ...

Page 34: ...age is not working Check the connector state CN801 OK NO Check the voltage level of Pin 1 or Pin5 of U801 YES Check the near circuit CN801 OK NO YES Check the near circuit U801 Check the CAM_CLK 26MHz of Pin 2 4 of U800 OK NO YES Check the VCTCXO near circuit U201 pin27 END ...

Page 35: ...evel e Tx ON 2 Spectrum analyzer SPAN 1 MHz VBW Auto RBW Auto Press the trace button of spectrum analyzer on checking test point and press the max hold of spectrum analyzer 3 Oscilloscope 500mV div 2ms div 4 RF Cable Loss about 10dB START Check VC TCXO X201 pin 3 is 26MHz oscillation Frequency 26 00MHz Power 15dBm NO NO YES YES Check RF Main chip U201 pin 4 5 6 7 I Q signal DC1 35V 0 5Vp p Check X...

Page 36: ...ck Power Amp U101 output C120 Frequency 902 4 MHz Power 15dBm Check U101 soldering U101 pin 42 43 VBAT DC voltage 3 3V U101 pin 45 PA_LEVEL signal 1 0V Replace U101 if defective Check ANT switch U100 pin 8 Frequency 902 4 MHz Power 15dBm Check U100 soldering U100 pin 6 high voltage U100 pin 1 low voltage Replace U100 if defective Check RF connector ANT101 soldering END ...

Page 37: ...trum analyzer SPAN 1 MHz VBW Auto RBW Auto Press the trace button of spectrum analyzer on checking test point and press the max hold of spectrum analyzer 3 Oscilloscope 500mV div 2ms div 4 RF Cable Loss about 10dB START Check VC TCXO X201 pin 3 is 26MHz oscillation Frequency 26 00MHz Power 15dBm NO NO YES Check X201 soldering X201 pin 4 DC 2 85V 0 1V X201 pin 3 DC 1 0 0 1V Replace X201 if defectiv...

Page 38: ...tput C110 Frequency 1747 8 MHz Power 10dBm Check U101 soldering U101 pin 42 43 VBAT DC voltage 3 3V U101 pin 45 PA_LEVEL signal 0 7V Replace U101 if defective NO YES NO YES YES YES Check ANT switch U100 pin 8 Frequency 1747 8 MHz Power 10dBm Check U100 soldering U100 pin 6 low voltage U100 pin 1 high voltage Replace U100 if defective Check RF connector ANT101 soldering END ...

Page 39: ...spectrum analyzer on checking test point and press the max hold of spectrum analyzer 3 Oscilloscope 500mV div 2ms div 4 RF Cable Loss about 10dB START Check RF connector ANT 101 pin 2 C108 Frequency 947 4 MHz Power 75dBm NO YES Check ANT101 soldering and short Replace ANT101 if defective Check U100 soldering U100 pin 1 Low voltage U100 pin 6 Low voltage Replace U100 if defective NO Check ANT Switc...

Page 40: ...5 17 Troubleshooting YES NO YES Check RF Main Chip U201 U201 pin 28 1 2 3 I Q signal DC 1 25V 0 1V Check U201 Pin soldering U201 Pin 26 32 DC 2 85V Calypso S W END ...

Page 41: ...spectrum analyzer on checking test point and press the max hold of spectrum analyzer 3 Oscilloscope 500mV div 2ms div 4 RF Cable Loss about 10dB START Check RF connector ANT 101 pin 2 C108 Frequency 1842 8 MHz Power 75dBm NO Check ANT 101 soldering and short Replace ANT 101 if defective Check U100 soldering U100 pin 1 Low voltage U100 pin 6 Low voltage Replace U100 if defective NO YES Check ANT Sw...

Page 42: ...5 19 Troubleshooting NO Check RF Main Chip U201 U201 pin 28 1 2 3 I Q signal DC 1 25V 0 1V Check U201 Pin soldering U201 Pin 26 32 DC 2 85V Calypso S W END YES YES ...

Page 43: ...5 20 Troubleshooting Memo ...

Page 44: ...6 1 6 Block Diagram 6 1 BB Block Diagram ...

Page 45: ...6 2 Block Diagram 6 2 RF Block Diagram ...

Page 46: ...6 3 7 Schematic Diagram 7 1 Key Pad ...

Page 47: ...7 2 Schematic Diagram 7 2 Main Board 7 2 1 Chipset Calypso IOTA ...

Page 48: ...7 3 Schematic Diagram 7 2 2 Memory Melody Charger ...

Page 49: ...7 4 Schematic Diagram 7 2 3 Audio ...

Page 50: ...7 5 Schematic Diagram 7 2 4 I O B d to LCD Connector SIM Interface ...

Page 51: ...7 6 Schematic Diagram 7 2 5 Camera ...

Page 52: ...7 7 Schematic Diagram 7 3 RF Schematic 7 3 1 RF PAM ...

Page 53: ...7 8 Schematic Diagram 7 3 2 RF Main IC ...

Page 54: ...7 9 Schematic Diagram Memo ...

Page 55: ...8 1 8 PCB Diagram 8 1 Main PCB Top View ...

Page 56: ...8 2 PCB Diagram Bottom View ...

Page 57: ... ANT SWITCH LMSP54KA 249 ANT101 Coaxial Connectors with switch MM8430 2600RB3 U801 LDO 2 50V LOW CURRENT TPS79325DBVR U204 U701 LDO 2 85V LOW CURRENT MIC5255 2 85BM5 U602 U604 ANALOG SWITCH DG9411DL T1 U608 COMPARATOR DUAL TC75W56FK TE85L U504 U511 DECODER SN74LVC1G19DCKR U102 TR DUAL TYPE EMB9 T2R U702 TR DUAL TYPE EMX1 T2R U800 BUS BUFFER KIC7SZ125FU RTK U301 U302 U303 U304 U305 CHIP EMI FIELTER...

Page 58: ...S 1608 BLM11P300SPT BLM18PG300SN1D F701 F702 F703 F704 U803 U804 FERRITE BEADS 1005 BLM15BD102PN1 BLM15BD102SN1D F500 F501 F602 F603 F604 F605 FERRITE BEADS 1005 BLM15BB121SN1D D101 TVS Diode RSB6 8S V601 V602 V603 V604 V607 V608 V701 V702 V703 V704 V705 V706 V707 V708 V709 V710 V711 V712 V713 V714 V715 V716 V717 VARISTOR 1005 SIZE 50pF AVLC5S02050 V300 V301 V302 VARISTOR 1005 SIZE 50pF AVLC18S020...

Page 59: ...GRP1555C1H1R0CZ01E C203 C204 CAP CERAMIC CHIP 1 2pF GRM36C0G 1R2C 50PN GRP1555C1H1R2CZ01E C205 C206 CAP CERAMIC CHIP 1 8pF GRM36C0G 1R8C 50PN GRP1555C1H1R5CZ01E C125 CAP CERAMIC CHIP 4 7pF GRM36C0G 4R7C 50PN GRP1555C1H4R7CZ01E C310 C312 C313 C601 C604 C617 C619 C724 CAP CERAMIC CHIP 9pF GRM36C0G 090D 50PN GRP1555C1H9R0DZ01E C217 CAP CERAMIC CHIP 10pF GRM36C0G 100D 50PN GRP1555C1H100JZ01E C112 C214...

Page 60: ...H151JD01E C404 CAP CERAMIC CHIP 180pF GRM36C0G 181J 50PN GRP1556C1E181JD01E C212 CAP CERAMIC CHIP 220pF GRM36X7R 221K 50PN GRP155R71H221KD01E C710 CAP CERAMIC CHIP 470pF GRM36X7R 471K 50PN GRP155R71H471KD01E C113 C116 C402 C514 C615 C616 CAP CERAMIC CHIP 1 nF GRM36X7R 102K 50PN GRP155R71H102KA01E C101 C114 C208 C210 C211 C817 C818 CAP CERAMIC CHIP 10nF GRM36X7R 103K 16PN GRP155R71C103KA01E C300 CA...

Page 61: ...88R60J475KE19D R207 R208 R482 R509 R510 R525 R526 R528 R601 R806 R808 RES CHIP 0 ohm 5 J 1 16W 1005 0402 MCR01MZSJ000 MCR01MZPJ000 R301 R305 R307 R308 R310 R311 R312 R317 RES CHIP 10 ohm 5 J 1 16W 1005 0402 MCR01MZSJ100 MCR01MZPJ100 R101 RES CHIP 27 ohm 5 J 1 16W 1005 0402 MCR01MZSJ270 MCR01MZPJ270 R700 R701 R702 RES CHIP 39 ohm 5 J 1 16W 1005 0402 MCR01MZSJ390 MCR01MZPJ390 R104 RES CHIP 51 ohm 5 ...

Page 62: ...02 MCR01MZSJ822 MCR01MZPJ822 R108 R109 R401 R451 R501 R522 R523 R531 R805 R831 R868 RES CHIP 10 Kohm 5 J 1 16W 1005 0402 MCRO1MZSJ103 MCR01MZPJ103 R402 RES CHIP 27 Kohm 5 J 1 16w 1005 0402 MCR01MZSJ273 MCR01MZPJ273 R703 RES CHIP 47 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ473 MCR01MZPJ473 R403 RES CHIP 68 Kohm 5 J 1 16W 1005 0402 MCR01MZSJ683 MCR01MZPJ683 R508 R513 R516 R518 R519 R618 R619 R705 R708 RES ...

Page 63: ...8 0603 MCR03EZHJ100 MCR03EZPJ100 R411 RES CHIP 0 2 ohm 1 RLC20R20FTP R514 RES CHIP 100 Kohm 1 F 1 16W 1005 0402 MCR01MZSF1003 MCR01MZPF1003 R300 4 RESISTOR ARRAY MNR04M0ABJ103 C215 C218 CAP CERAMIC CHIP N C R110 R111 R529 R530 R807 R809 RES CHIP N C L100 CHIP INDUCTOR N C MAIN PCB NEO100 V5 0 ...

Page 64: ...OR PSR PORON T 0 7 BH850019902 INDICATOR ASSY BH720027701 INDICATOR DIFFUSION PC BH750020002 CAP INDICATOR ELECTOR FORMING T 0 2 BH850017101 FOLDER LOWER ASSY BH720027501 FOLDER LOWER PC BH710001101 MAGNET Ø3 x 2 0T BH750020101 TAPE MAIN WINDOW 3M HK 9448 BH750021601 TAPE DECO SPEAKER 3M HK 9448 BH710013401 INNET SPEAKER Ni PLATING BH720028601 DECO SPEAKER ABS FOR PLATING BH740019801 CUSHION MAIN ...

Page 65: ...01 CAMERA BRACKET PC BH750021701 TAPE CAMERA BRACKET 3M HK 9448 BH850017412 BATTERY STD ASSY BH720028101 BATTERY UPPER PC BH720028201 BATTERY LOWER PC BH710013101 BATTERY TERMINAL PBT PBsP T 0 15 BH760005404 LABEL BATTERY PET FILM T 0 05 BH720029401 RING INDICATOR ABS FOR PLATING BH750020801 COVER SCREW PC SHEET T 0 2 BS61111448B SCREW FOLDER MAS BH M1 4x4 8 BH720028404 WINDOW MAIN ACRYL FILTER T ...

Page 66: ...30011601 RUBBER I O URETHAN RUBBER BH730011701 RUBBER MIC SILICON RUBBER BH750022901 SIM COVER PC SHEET T 0 18 BH720028501 SIDE KEY ABS URETHAN BH710013601 SIDE KEY FPC BH740020201 SHIELD FORM PCB 3 3 3 T1 3 BS61111403B SCREW MAIN MAS BH M1 4x3 BH710013701 METAL DOME SHEET BH750020701 COVER EAR JACK PC SHEET T 0 05 BH750023801 SIDE KEY FPC TAPE CAPTON TAPE T 0 05 BH730011804 KEY PAD BH750028201 FR...

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