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cromax P310 Service Manual
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cromax P310 Service Manual

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P310
L2 Service Manual

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Summary of Contents for cromax P310

  • Page 1 P310 L2 Service Manual...
  • Page 2 P310 L2 Service Manual Product introduce Model ：P310 Product size：188.4*108.3*10mm Platform：MTK8317 ，Quad 1.0GHz Memory：4GB+1GB (Nand&sdram+RAM） System：Android 4.1.2 Frequency band: Dual-SIM WCDMA 900/2100MHz，GSM 900/1800 MHZ Battery：2800mAh Charger: Travel charger USB cable: MICRO 5PIN Earphone：3.5jack LCD&TP： resolution: 1024*600，Capacitance TP Camera：2.0M+0.3M Support：FM, GPS，BT4.0，WIFI...
  • Page 3 P310 L2 Service Manual 1. Tools list I. Tweezer Cross II. Screw driver III. Solder IV. Tommy bar V. Hot gun...
  • Page 4 P310 L2 Service Manual 2. Cover Plate disassembly  Open the cover plate，as the Fig. 1 COVER PLATE FIG.1...
  • Page 5 P310 L2 Service Manual 3. Back case disassembly  Insert tommy bar into the gap between middle frame and back case, then slide it slowly along the gap, as the Fig.2 FIG.2...
  • Page 6 P310 L2 Service Manual 4. Disassemble battery&speaker&mic&motor  First, remove battery with soldering iron. Then remove the four screws as shown in the fig.3 to disassemble speaker holder and antenna holder. FIRST REMOVE FOUR SCREWS FIG.3...
  • Page 7 P310 L2 Service Manual 5. Tear off conduction tape and high temp tape，as the Fig.4 FIG.4...
  • Page 8 P310 L2 Service Manual 6. The main components distribution，as the fig.5 TOUCH IC CPU/DDR/PMU FLASH WIFI+BT MODEL FIG.5...
  • Page 9 P310 L2 Service Manual 7. Remove the three screws and open the LCD con. & TP con.,as the fig.6 TF CON FIG.6 LCD CON...
  • Page 10 P310 L2 Service Manual 8. Remove main board from case，as the FIG.7 FIG.7...
  • Page 11 P310 L2 Service Manual Remove camera ，as the FIG.8 FIG.8...
  • Page 12 P310 L2 Service Manual 10.Receiver disassembling, as the fig.9 FIG.9 RECEIVER...
  • Page 13 P310 L2 Service Manual 11. Exploded view MOTOR RECEIVER HOLDER HOLDER PCBA COVER MIDDLE PLATE FRAME BACK CASE BATTERY...

  • Page 14: Lcd Connector

    P310 L2 Service Manual L1 & L2 Repairing guide 1. LCD  Check the SW is correct, otherwise to upgrade the SW;  Check the LCD is ok, otherwise change a new LCD;  Ifthe LCD loose, re-assemble the LCD and test;...
  • Page 15 P310 L2 Service Manual 2. Camera  Check the camera assemble correctly, otherwise re-assemble the camera and test;  Cross test with a good camera, and check the camera is ok;  Check the camera connector is ok as shown in the below picture, otherwise re-solder or change a new one;...
  • Page 16 P310 L2 Service Manual 3. Touch Pannel  Check the SW is correct, otherwise to upgrade the SW;  Check the FPC of TP is correct, otherwise re-assemble it;  Cross test with a good TP;  Check the TP connector is correct, otherwise re-solder or change a new one;...
  • Page 17 P310 L2 Service Manual 4. Ringer  Check the shrapnel of speaker is ok;  Check the resistance of speaker is ok, otherwise to change a new one;  Check the FPC is ok;  Check SPK-FPC connector with sub-board is ok.
  • Page 18 P310 L2 Service Manual 5. Receiver  Check the shrapnel of receiver is ok;  Check the resistance of receiver is ok, otherwise change a new one;  Check the connector point on the main board is ok, as shown in the below picture;...
  • Page 19 P310 L2 Service Manual 6. MIC and Vibrator  Check the MIC and Vibrator is cold soldering, otherwise re-solder it;  Change the MIC and Vibrator;  Check the circuit of MIC and Vibrator;  Check the FPC is connect correctly.
  • Page 20 P310 L2 Service Manual 7. Earphone  Check the shrapnel of earphone is ok;  Check the connector point on the main board is ok, as shown in the below picture;  Change earphone connector;  Check the circuit of earphone is OK.

  • Page 21: Power Button

    P310 L2 Service Manual 8. No Power On / Dead  Check the voltage of battery is 3.8-4.2V and connect correctly;  Upgrade the SW;  Check power on key and the circuit around it. POWER BUTTON...

  • Page 22: Usb Connector

    P310 L2 Service Manual 9. No Charging  Checkthe voltage of battery is over 3.4V;  Check the charger and USB cable is ok;  Check the USB connector and circuit is ok. USB CONNECTOR...
  • Page 23 P310 L2 Service Manual 10. No SIM card and no memory card  Check the connector of T –card and SIM card;  Change the connector of T –card and SIM card; Thanks For any questions or suggestions please email to tech.help@micromaxinfo.com...