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35

Signal Issue

No signal or weak

signal.

Visually check if the

antenna is broken or

disconnected.

Replace the damaged

components.

YES

Wire to the input and output of

U502, to see if there is signal

NO

Replace U502

YES

Wire to the input and output of Z502

、

Z503Z504,check if there is signal

Replace the filter

which is broken.

NO

YES

Replace U203 26Mhz

Crystal.

NO

Re-solder or

replace CPU

MT6253

。

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Содержание EV730

Страница 1: ...1 EV730 Service Manual ...

Страница 2: ...oval of Tinno s management team any copying or distribution to third party are not allowed Without the approval of Tinno publishing distribution copy save or transfer of this or part of this document are not allowed Tinno reserves the right of modifying or updating for this document without notification and Tinno has the final power of interpretation Content 1 Brief Introduction 3 2 Exploded View ...

Страница 3: ...n be transmitted to external speakers Multi Media MP3 MP4 3GP TV Flex Antenna Talking Time TBD Based on Network Status Standby Time TBD Lithium Battery Standard 950mAh Features Functions Dual SIM Dual Standby Single Connection Fassion Music Phone FM Radio BT Call Data transfer Multi Media application Camera 0 3M USB data transfer T Flash Support 8G T Card 2 2 TFT QVGF 240 320 MP3 MP4 3GP Breathing...

Страница 4: ...4 Chapter 2 Exploded View ...

Страница 5: ...5 Chapter 3 Tools Power Supply Multi meter Solder iron Hot Air Gun Solder wire Flux PC Download cable Cable Others Figure 7 Pick Screw Driver Tweezers Wrist grounding strap Antistatic gloves ...

Страница 6: ...4 Disassembly Assembly 1 Disassembly Process Unfasten the 6 screws by screw Take out back shell Stick the lens shield Prize up the back cover by pick Stick the LCD Shield Push the battery cover from left to right ...

Страница 7: ...7 Finish Remove the screw 7 Take out PCBA 8 Take out keypad ...

Страница 8: ...8 2 Assembly Process Install the back shell Remove the lens Shield Remove LCD Shield Install PCBA 2 Install the keypad Fasten the screw 3 ...

Страница 9: ...9 finish Fasten the screws 8 Tighten the front back shell Install the battery cover ...

Страница 10: ...cation of Components U101 CPU MT6253 J401 Earphone Connector U301 Flash J302 I O Connector U801TV IC MT5192 J201 Battery Connector U705 BT IC MT6612 X201 32 768K Crystal oscillator J503 SIM Connector J301 T Flash Connector U601 Camera connector J502 SIM Connector Keypad Connector U501 PA IC SKY77550 ...

Страница 11: ...11 5 2 PCBA Layout Side A Side B ...

Страница 12: ...12 Chapter6 System Block Chart ...

Страница 13: ...13 Chapter 7 Circuit Map 7 1 1 Baseband CPU Audio Keypad Other Interface Camera Bluetooth ...

Страница 14: ...14 7 1 2 Baseband Keypad 7 1 3 Clock 32 768KHZ Circuit ...

Страница 15: ...sh Data line Flash BGA Pin Ed0 AK28 Ed0 G12 Ed1 AJ25 Ed1 G11 Ed2 AN31 Ed2 F9 Ed3 AL27 Ed3 F8 Ed4 AP30 Ed4 G7 Ed5 AN29 Ed5 G6 Ed6 AL29 Ed6 F5 Ed7 AK26 Ed7 F4 Ed8 AM30 Ed8 F11 Ed9 AM26 Ed9 F10 Ed10 AK30 Ed10 G9 Ed11 AP32 Ed11 G8 Ed12 AM28 Ed12 F7 Ed13 AL29 Ed13 F6 Ed14 AN27 Ed14 G4 Ed15 AJ27 Ed15 G3 ...

Страница 16: ...rent Vcore 1 2v 200ma Vio 2 8v 100ma Vadd 2 8v 150ma Vtcxo 2 8v 20ma Vrtc 1 2v 200ma Vmem 2 8v 150ma Vsim 2 8v 20ma Vcs 2 8v 200ma vcs 1 8v 150ma 7 2 MT6253 CPU Power output SIM 2 Clock SIM 2 Reset SIM 2 Data SIM 1 Clock SIM 1 Reset SIM 1 Data ...

Страница 17: ...rn communication equipments and the Internet can be faster and more efficient and the application of the wireless communication is accelerated The Bluetooth technology realize the wireless data and sound transfer from one point to several points the transfer bound is a 10 meters radius sphere to the one point the transfer bandwidth is 1Mbps and the communication medium 7 3 Battery connector Temper...

Страница 18: ...18 7 5 Audio PA U401 7 6 I O Interface 5 PIN Analog Switch 数据传输端 Data Transfer 数据传输端 Data Transfer Audio Input Battery Power Supply Control Audio Output Data Transfer Data Transfer ...

Страница 19: ...19 7 7 Power Amplifier Power Control Signal Input Power Supply RF Input GSM 900M Output Antenna SKY77550 DCS1800M Output ...

Страница 20: ... sends audio signals FM INL FM INMR to the audio process module of CPU for decoding where the electrical signals of audio are made 7 9 SIM Circuit SIM 1 Clock SIM 1 Reset SIM 1 Power SIM 1 Data SIM 2 Power SIM 2 Clock Reset SIM 2 Data FM Power Amplifier Output Clock Control Input FM Control Signal Input FM Audio Output ...

Страница 21: ... EN Technology All modes of SN3189 can be breathing with music s rhythm The 6 way of RGB output can support upto 256 levels of individual lightness control with 40 mA output for each output and support multi LEDs in parallel connection 3 7V Power Supply LED Interface 3 7V Power Supply Control Signal Input ...

Страница 22: ...nt via different channels VHF UHF to the TLG1100 GC CA Telegent Chipset to be processed and transferred to CPU TV Signal Receiving Input TV 2 8V TV Signal Processing Close PIN TP for monitoring Broadcast TV signal input All control signal input 2 8V 2 8V 1 2V 2 8V ...

Страница 23: ...tput Cannot download Check if it is caused by the PC cable tools etc Power on NO NO NO NO YES YES YES No YES OK Replace or reconfig Check I O Connector Connect the cable check if the current is normal about 30 mA Disconnect the cable and check if the chipset is over heat Check VCORE VDD VADD VTCXO VRTC VMEM 26MHZ 32KHZ crystal Replace U306 or U101 ...

Страница 24: ...e faulty No SIM Clean or change SIM Slot Check the contact of SIM Slot NO NO NO NO YES YES YES YES OK Problem Solved Check if SIM is broken Check the current by using power supply CPU MT6253 is probably broken or not soldered well Change U101 MT6253 NO ...

Страница 25: ...ry MT6253 maybe faulty Cannot Power On Resolder or replace J201 If the contact is broken NO NO NO NO YES YES YES YES YES Problem Solved Can power on by using Check if the current is about 30 40mA Software upgrading Replace U101 MT6253 NO ...

Страница 26: ...sound Check if LS402 is broken NO NO NO NO YES YES YES YES Re solder or clean LS402 Check if the receiver is soldered well Remove receiver and test by the buzzer of multi meter to hear if there is any sound Replace receiver Replace CPU MT6253 NO NO Does hand free function work Receiver no sound ...

Страница 27: ...No Ringtone Remove receiver and test by the buzzer of multi meter to hear if there is any sound NO NO NO YES YES YES YES Replace the component Check if the phone is set to vibration or mute mode Check if the volume is set to lowest Turn up the volume Replace U101 or U401 NO 84666 option 7 test if the ringtone is normal NO ...

Страница 28: ... has start signal and the dataline is normal Can power on but no display or display is abnormal NO NO NO YES YES Check if the LCD interface is soldered well Replace LCD Problem Solved Replace or resolder U101 MT6253 Check if the LCD is broken NO YES Upgrade the software ...

Страница 29: ...ctor Replace charger or cable Connect charger and input 84666 ADC current should be 0 40A Upgrade the software Connect charger without battery test if the positive pole of battery contact has 3 6V NO NO YES YES YES NO Replace U201 and R212 Replace or resolder CPU MT6253 NO NO Charging Problem ...

Страница 30: ...utput voice No output voice Check if MIC is broken Replace MIC NO Remove MIC and input 84666 option3 check if MK400 has 1 5V power YES NO Check if B404 or B411 is broken Replace or re solder CPU MT6253 YES NO ...

Страница 31: ... reinstall camera module Power on and select camera function check if B601 and C606 hav 2 7V or 1 5V power Upgrade software YES Visually check if the camera slot is broken Replace or resolder the camera slot YES Replace or resolder CPU MT 6253 NO ...

Страница 32: ...sh Slot Check if the VMC of 4pin of T Flash slot has 2 8V or not NO Resolder the T Flash Slot NO Check the pin3 5 7 of SIM slot if the voltage is 0 7V By diode mode Check if there is any short cut between the pins of SIM Slot YES Replace SIM slot Socket YES CPU MT6253 need to be resoldered or replaced NO Resolder or replace the CPU MT6253 ...

Страница 33: ...function Some keys no functions Upgrade the software NO Check if there is any liquid leak or corruption Clean the short or corrosion circuit NO YES Re solder or replace CPU Clean the key Check the circle of the faulty key if there is 0 7V voltage to the ground By diode mode NO ...

Страница 34: ...ssue Bluetooth doesn t work NO Upgrade Software Check if BT V2 8 and BT V1 2 are normal Check if C706 have 3 7V power supply NO Resolder or replace MT6612 NO Replace filter U703 NO Resolder or replace CPU MT 6253 NO ...

Страница 35: ...ed Replace the damaged components YES Wire to the input and output of U502 to see if there is signal NO Replace U502 YES Wire to the input and output of Z502 Z503Z504 check if there is signal Replace the filter which is broken NO YES Replace U203 26Mhz Crystal NO Re solder or replace CPU MT6253 ...

Страница 36: ...n using USB Serial cable The driver need to be installed before using the USB cable Please keep the USB cable unplugged when installing the driver Plug the USB cable when installing is completed And check device manager of the PC 3 Please select Options COM port Choose the port which is same as the one in Device Manager 2 Run FlashTool_v3 2 ...

Страница 37: ...37 4 Select Options Format FAT DISABLED and please do NOT select validation 5 Pls Choose Do Not Format FAT 选择此项 ...

Страница 38: ...38 6 Click Download Agent and then choose file MTK ALLInOne bin 7 Click scatter file and then choose file scatinn 09B_GEMINI txt 双击双击 ...

Страница 39: ...wer off the handset remove the battery click Download and connect the cable with handset then insert the battery press the power on button the red and blue progress bar shall appear 9 Downloading is in process ...

Страница 40: ...40 10 Downloading is completed ...

Страница 41: ...e IMEI to the slave phone of MGSM 41B phone to give an example Firstly plug the correct upgrade cable to the computer This is necessary or the software will not be run normally Double click the logo in figure 1 1 to run the IMEI Writer in a Windows XP operation system figure 1 1 For the first time you run IMEI_Writer in the computer figure 1 2 occurs Choose the right database file for the slave ph...

Страница 42: ...hone successfully Figure 1 5 2 write the IMEI of the master phone If necessary you can also use IMEI_Writer to write IMEI to the master phone conveniently 2 1 Change the database file to be for the master phone referring figure 1 4 2 2 input the IMEI of the master phone click Restart after 3 seconds plug the master phone cable connector to the phone and power on the phone Input the IMEI here Click...

Страница 43: ... phone successfully Chapter 10 CIT Testing Input 84666 when in the standby mode 1 Version Confirm the firmware version 3 Echo Loop Receiver shall produce sound when blowing over the mic 4 Keypad Press every button on the handset until the screen is clear 5 Vibrator Press start then the vibration shall start 6 Lond SPK Press start the speaker shall work 7 Ringtone Press start the ringtone shall be ...

Страница 44: ...www s manuals com ...

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