FLY E175 Wi-Fi Repair Service Manual

Hide thumbs

Table Of Contents

Table of Contents

Quick Links

Download this manual

Fly E175 Wi-Fi

Repair Service Manual

Release Date : 2011/6/10

- 1 -

Table of Contents

Need help?

Do you have a question about the E175 Wi-Fi and is the answer not in the manual?

Questions and answers

Summary of Contents for FLY E175 Wi-Fi

Page 1 Fly E175 Wi-Fi Repair Service Manual Release Date : 2011/6/10 - 1 -...
Page 2: Table Of Contents
General features and specifications..................3 Decomposition diagram......................8 Fly E175 Wi-Fi Circuit.........................9 Components address confirmation.....................39 Baseband Trouble........................41 RF Trouble..........................62 Fly E175 Wi-Fi disassembly and assembly..................66 Fly E175 Wi-Fi SELF TEST......................74 Fly E175 Wi-Fi upgrading ROM procedure...................75 - 2 -...
Page 3: General Features And Specifications
1. General features and specifications Model name / Spec E175 Wi-Fi Image General Standard GSM900/DCS1800 Size (H x W x T) 112*56.5*13 Weight (gramms) 102g Battery 1000 mAh, Li-Ion Talktime (h) Stand by (h) Platform (MTK chipset) MTK6236 Design Form factor...
Page 4 Resolution (Mpx) 3.2 MP(extrapolated by SW) Video recording (pix.) QVGA (320x240) Flash Digital zoom Modes Normal,continuous shot,panorama,add frame normal,grayscale,sepia,sepia green,sepia blue,color Effects invert Web-camera Flash-light (torch) Audio player Formats mp3, aac, amr, wav, mid Equalizer (normal, bass, dance, classic, treble, party, pop, rock) Manual eualizer setup Bitrate Work time (hours)
Page 5 Dictophone TV-out E-book Graphic editor Background sound Java MIDP CLDC Available memory 300Kb Cash 100Kb Preinstalled JAVA application Bluetooth Version A2DP GAVDP AVRCP Obex Imaging Responder IRDA Availability Mobile internet E-mail client GPRS GPRS class class 12 GPRS-modem OTA support Memory Built-in (Mb) 1Gb+512Mb...
Page 6 Organizer Calendar Alarm clock To Do List Reminder Notes Auto on/off World time Calculator Currency Converter Unit converter Stop-watch Тimer Biorhythm Call signals Melodies supports download from web or from PC Polyphony 64-tones polyphony Format MID,WAV,AMR,AAC,MP3 Vibro Melody editor Phone book Memory 1000 cells home, company name, E-mail, office, fax, birthday,...
Page 7 Packing Memory card Battery yes，1pcs Charger Desktop charger USB cable Earphones Manual TV out cable Warranty card (new black) WAP advertising card Certificate information card Other - 7 -...
Page 8: Decomposition Diagram
2. Decomposition diagram - 8 -...
Page 9: Fly E175 Wi-Fi Circuit
3. Fly E175 Wi-Fi Circuit 3.1 MT6236 System Overview 3. Fly E175 Wi-Fi Circuit - 9 -...
Page 10 - 10 -...
Page 11 - 11 -...
Page 12 - 12 -...
Page 13 - 13 -...
Page 14 Pin Description - 14 -...
Page 15 - 15 -...
Page 16 - 16 -...
Page 17 - 17 -...
Page 18 - 18 -...
Page 19 - 19 -...
Page 20 3.2 RF transceiver MT6140 RF transceiver MT6140 is a highly integrated RF transceiver IC for Global Systems for Mobile communication (GSM850, GSM900), Digital Cellular communication Systems (DCS1800), and Personal Communication Services (PCS1900) quad band cellular systems. It includes four LNA's, two RF quadrature mixers, a channel filter, a programmable gain amplifier for the receiver, two high precision I/Q modulators for the quad band transmitter, on-chip regulators, and a fully programmable sigma-delta fractional-N synthesizer with an on-chip...
Page 21 - 21 -...
Page 22 - 22 -...
Page 23 SKY 77546 Rx-Tx Module The SKY77546 is designed for dual-band cellular handsets comprising GSM900 and DCS1800 applications and offers a complete Transmit VCO-to-Antenna and Antenna-to-Receive SAW filter solution that supports Class 12 General Packet Radio Service (GPRS) multi- slot operation and EDGE operation. The module consists of a GSM900 PA block, a DCS1800 PA block, a Power Amplifier Control (PAC) block, impedance-matching circuitry for 50 Ω...
Page 24 - 24 -...
Page 25 3.3 S200 WiFi SIP module Description AcSiP Technology Corp. introduces a low-cost and low-power consumption WiFi SIP module. The module is targeted to mobile devices including smart phone, PDA, WiFi phone, DSC, DVC which need small WiFi module. The highly integrated module allows the usage of web browsing, VoIP application. The wireless SiP module support IEEE 802.11b/g standard and it can provide up to 54Mbps for IEEE 802.11g, 11Mbps for 802.11b to connect your wireless LAN.
Page 26 - 26 -...
Page 27 RF circuit - 27 -...
Page 28 MT6236-Baseband circuit - 28 -...
Page 29 - 29 -...
Page 30 Flash Memory circuit - 30 -...
Page 31 MT6236-PMU circuit MT6236-IMPUT circuit - 31 -...
Page 32 Charging circuit Vibrator circuit - 32 -...
Page 33 Handset Mic circuit Handset REC circuit - 33 -...
Page 34 Earphone Mic circuit Loud Speakers circuit - 34 -...
Page 35 LCM circuit Camera circuit - 35 -...
Page 36 T-Card circuit USB I/O circuit - 36 -...
Page 37 SIM Card circuit BT circuit - 37 -...
Page 38 FM circuit Wi-Fi circuit - 38 -...
Page 39: Components Address Confirmation
4. Components Address Confirmation - 39 -...
Page 40 - 40 -...
Page 41: Baseband Trouble
Baseband Trouble 5.1Preparatory work for repair Flash programming does not download ： Analysis Process - 41 -...
Page 42 Not Download Little or no current Check current Check test point Check VBAT voltage (UTX,URX ， VCHG is 2.8V) Check the voltage VCHG corresponding whether is or VBAT signals in the normal， If whether circuit-off there is no VCORE（ 1.2V）、 short circuit voltage, AVDD （...
Page 43 supply has been provided, then Crystal will produce 26 MHz clock signal, on the one hand it will be taken as a RF reference clock, on the other hand, it will be sent to logic to the clock signal. After the clock signal reaches the microprocessor, the memory before need be cleared, therefore PMU will send reset signal to it for initialization.
Page 44 5.4 Sound trouble ： Analysis Process Sound trouble : Ringtone/MP3 Check SPK Re-welding or change SPK Check welding of the SPK Re-download software peripheral circuits Check welding of U400 (Audio PA) Re-welding or change U200(CPU) Reference circuit as follows： - 44 -...
Page 45 5.5 Can not charge up Charging principle introduce: When the charger inserted, Charge for the PMU module provides voltage Charge，As long as the PMU of the BATDET pin grounding can start charging module，at this time will result in a charge interrupt signal to CPU，to inform the CPU has entered a state-of-charge now.
Page 46 5.6 LCD trouble LCD backlight driver circuit: - 46 -...
Page 47 ： Analysis Process LCD Trouble No Blacklight No Display Check EMI part CheckU505 welding of the U500 U501 Re-welding or change U502 U503 U504 Check FPC Check FPC Re-welding or change welding welding Check LCD Change LCD module module Re-download Re-welding or change CPU software - 47 -...
Page 48 Keyboard not function Analysis Process: KEY not function Check part ,R206,R208,R209,R210,R21 Whether insufficient Solder 1,R221,R222, Value whether is 1K Re-download Re-welding or change CPU software 5.8 Microphone trouble Reference circuit as follows: - 48 -...
Page 49 ： Analysis Process MIC not function 1.Re-welding or change Check MIC 2.Check PCB mic pad whether short-circuit 1 .Check whether there is part miss Check mic external 2. Check whether there is part unconnected solder circuit 3. Measure signal in the circuit show Re-download Re-welding or change CPU software...
Page 50 5.10 USB transmit trouble Reference circuit as follows: USB Circuit Working Principle： 1、Phone through the USB data line and computer connection, charge signal trigger phone auto power on 2、External power supply (USB_PWR)connect to mobile phone, USB ADC signal voltage will be low to the high jump, trigger bring interrupted signal;...
Page 51 ： Analysis Process USB transmit trouble Check USB 1.To confirm the correct use of usb cable line 2.Check headset whether inserted in the end connect 1.Check CON508 PIN whether un-connect Check USB jack solder 2.Check CON508 whether internal damage 3.Change CON508 Check PC driver Re-welding or change CPU whether correct install...
Page 52 5.11 Vibrator trouble Reference circuit as follows: ： Analysis Process No vibration Open vib ,measure VIBRATOR whether Re-welding or change Vibrator there is low level Re-download Re-welding or change CPU software - 52 -...
Page 53 5.12 Receiver does not work Reference circuit as follows: ： Analysis Process Receiver Trouble Engineer model, open 1 Check receiver whether the good contacts with receiver , scilloscope measurements whether the PAD there is a wave output 2. Clean PCB PAD 3.
Page 54 ： Analysis Process Camera trouble Check the condition of the Check the solder condition of U706 Camera module, LDO Check the soldering Condition of Re-welding or replace it CON503& Tail FPCB Check camera Check camera Change new camera sensor sensor sensor Re-download Re-welding or change CPU...
Page 55 5.14 Bluetooth has not function Reference circuit as follows：： Analysis Process BT trouble Check BT headphones 1.Power support :VBT Check BT external circuit 2.Check clock:26M Check the soldering Re-welding or replace it condition of U700 Re-download Re-welding or change CPU software - 55 -...
Page 56 5.15 Motion sensor trouble Reference circuit as follows： - 56 -...
Page 57 ： Analysis Process Motion sensor trouble open motion sensor function Re-welding or change U200 Measure VDD whether is 2.8v Measure GPIO61_SENSOR_SDA GPIO60_SENSOR_SCL Re-welding or change U200 whether is 2.8v Re-download Re-welding or change CPU software - 57 -...
Page 58 5.16 FM trouble Reference circuit as follows： - 58 -...
Page 59 ： Analysis Process FM trouble 1.Check headphones whether inserted in the end Check headphones 2.Check headphones jack whether unconnected solder 1.Power support :VDD Check FM external 2.Check RTC:32.768KHz circuit 3.Check external whether there is missing and unconnected solder Check the soldering Re-welding or replace it condition of U702 Re-download...
Page 60 5.17 Phone can not access SIM card Reference circuit as follow ： Analysis Process SIM trouble Check SIM card base Whether unconnected solder SIM card whether true insert Re-download Re-welding or change CPU software - 60 -...
Page 61 5.18 TF card trouble Reference circuit as follow ： Analysis Process Can not access TF card Check TF card base Re-welding or replace it Re-download Re-welding or change CPU software - 61 -...
Page 62: Rf Trouble
RF Trouble 6.1 Principle of operation Signal TX processes: Acquisition voice - Amplification - ADC - filter - Speech Code - Complect - encryption - Channel Equalization - GMSK modulation -- ( into RF part) IQ modulation (IQ modulator) - filter -- Frequency phase (phase frequency) - filter - TX_VCO mixer (Mixer Mixer) - power amplifier (PA) - duplex -- Antenna matching circuit - antenna TX Signal RX process:...
Page 63 6.2 AGC failure ： Analysis Process AGC failure Control META in a state of continuous RX Check C107/L107/C103/C11 1/L115/R104/L116/L1 Re-welding or replace them 12/C114/C115/L111/ C112/C113 was welded OK? Check F101 was Re-welding or replace F101 welded ok? Check U106 was Re-welding or change U106 welded ok? Check U101 was...
Page 64 6.2 AFC failure ： Analysis Process AFC failure Re-download software ,clean test data Check Tx circle is ok? Refer to apc fail Check RX circle is ok? Refer to agc fail Check 26M Re-welding or replace 26M crystal crystal(OSC100) welded ok and signal is normal? Check C117/R101/C142/C149 Re-welding or replace them...
Page 65 6.3 APC failure Analysis Process APC failure Control META in a state of continuous TX Check U103 Check U103 circle or re-welding U103 Pin38/Pin39 signal is normal? Check U101 Pin5/Pin6 signal is normal? Re-welding or change R115/L106/C131/C127/R111/L103/C123/C126 Check U101 Pin20 signal is normal? Check U101 circle or re-welding U101 Check...
Page 66: Fly E175 Wi-Fi Disassembly And Assembly
Fly E175 Wi-Fi disassembly and assembly Introduction During disassembly and assembly procedures, please note the grounded high impedance conductive wrist strap is used in order to avoid damaging the housing and internal components. The following pictures describe the step to disassemble.
Page 67 Step 2：Remove the mylar of TP connector Step 3：Take off FPC of TP lens - 67 -...
Page 68 Step 4：Removing main board from front housing Step 5：Take off the camera and flash LED from main board  Take off GSM antenna and Wi-Fi antenna - 68 -...
Page 69 The following pictures describe the step to assemble Step 1：Stick receiver into front housing Stick 2 conductive foams to corresponding position Fixed TP guild flim Step 2：Screw stylus holder into rear housing Install vibrator into rear housing  Install side keys - 69 -...
Page 70 Step 3：Welding the speaker  Welding the MIC  Welding the FPC of flash Step 4：Install the speaker into ANT stent and fix the stent(if the hook damaged in installing ,add 2 screws) Install Wi-Fi ANT  Stick flash LED Connect camera and stick it - 70 -...
Page 71 Step 5：Welding the LCM Step 6：Stick mylar and stick the LCM on main board  Stick the stylus foam - 71 -...
Page 72 Step 7：Install main key into front housingStick the protective film on the metal surface of front housingInstall TP Install the main board into front housing Step 8：Connect FPC into the TP connector - 72 -...
Page 73 Step 9：Stick mylar(size 6*10) on camera connectorStick mylar(size 6*6) on welding pad of flash LED and TP connector Step 10：Install rear housingscrew in the screws - 73 -...
Page 74: Fly E175 Wi-Fi Self Test
8 Fly E175 Wi-Fi SELF TEST From the idle screen, to enter Factory Mode, enter *#94683538# on the keypad. As in normal menu operation, the Right Soft Key (RSK) "BACK" returns to the previous screen and the "END" key returns to the idle screen.
Page 75: Fly E175 Wi-Fi Upgrading Rom Procedure
ROM procedure 9 Fly E175 Wi-Fi Step 1 Com port number can be checked by device management as below: Under COM and LPT item as Prolific USB-to-Serial Com Port. Com port number will be used while setting software. Step 2...
Page 76 Step 5 Run the Operation setting, select to COM Port setting, select to UART TYPE setting, select to Download ROM and Format Format FAT Option setting, select to Auto Baud Rate setting, select to 921600 - 76 -...
Page 77 Step 6 Click "open Download Agent File" from File option manual. Note: Please select COM port that Download cable has used such as COM3. Different computer used different com port for download cable. Com port number can be checked by device management as below: Under COM and LPT item as Prolific USB-to-Serial Com Port.
Page 78 Step 7 Select MTK_AllInOne_DA file. - 78 -...
Page 79 Step 8 Click "Select Scatter and Load Setting" from File option manual. Step 9 Select you want update of the file path & file (*.TXT) as below. - 79 -...
Page 80 Step 10 As picture below, if the path & file name is correct, it mean the setting will finish. Step 11 Follow number as below to set parameter and then press start. Note: please select download ROM only from Type manual. - 80 -...
Page 81 Step 12 Remove the battery and then reinstall it again, plug in USB cable then the update procedure will be in progress. Step 13 When progress is 100%, press stop button and close program. - 81 -...

FLY E175 Wi-Fi Repair Service Manual

Quick Links

Need help?

Questions and answers

Related Manuals for FLY E175 Wi-Fi

Summary of Contents for FLY E175 Wi-Fi

Table of Contents