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cromax A092 Service Manual

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All manuals and user guides at all-guides.com
A092
L2 Service Manual

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Summary of Contents for cromax A092

  • Page 1 All manuals and user guides at all-guides.com A092 L2 Service Manual...
  • Page 2 All manuals and user guides at all-guides.com A092 L2 Service Manual Product introduce Model ： A092 Product size：125.5*65*11.5mm Platform：Qualcomm MSM8212，Quad 1.2GHz Memory：4GB+512MB (Nand&sdram+RAM） System：Android 4.3 Frequency band: Dual-SIM WCDMA 900/2100MHz，GSM 900/1800 MHZ Battery：1500mAh Charger: Travel charger USB cable: MICRO 5PIN Earphone：3.5jack...
  • Page 3 All manuals and user guides at all-guides.com A092 L2 Service Manual 1. Tools list Tweezer Cross Screw driver III. Solder Tommy bar Hot gun...
  • Page 4 All manuals and user guides at all-guides.com A092 L2 Service Manual 2. Battery caver disassembly  Open the battery cover，as the Fig. 1...
  • Page 5 All manuals and user guides at all-guides.com A092 L2 Service Manual 3. Back caver disassembly  Unscrew 7 screws in back cover，as the Fig.2...
  • Page 6 All manuals and user guides at all-guides.com A092 L2 Service Manual 4. Disassemble back cover with Tommy bar，as the Fig.3...
  • Page 7 All manuals and user guides at all-guides.com A092 L2 Service Manual 5. Main board and front cover disassembly  The main components of distribution，as the fig.4...
  • Page 8 All manuals and user guides at all-guides.com A092 L2 Service Manual 6. Remove four screws and open the LCD con. & TP con. & Speaker & Vibrator, as the fig.5...
  • Page 9 All manuals and user guides at all-guides.com A092 L2 Service Manual 7. Take out the main board，as the FIG.6...
  • Page 10 All manuals and user guides at all-guides.com A092 L2 Service Manual 8. Remove the Back Camera and Front camera，as the FIG.7...
  • Page 11 All manuals and user guides at all-guides.com A092 L2 Service Manual 9. Receiver and Light sensor rubber sleeve disassembly, as the fig.8...
  • Page 12 All manuals and user guides at all-guides.com A092 L2 Service Manual 10. Exploded view...
  • Page 13 All manuals and user guides at all-guides.com A092 L2 Service Manual L1 & L2 Repairing guide 1. LCD  Check if the SW is correct, otherwise to upgrade the SW;  Check the LCD if is ok, otherwise change a new LCD;...
  • Page 14 All manuals and user guides at all-guides.com A092 L2 Service Manual 2. Camera  Checking the camera is assemble ok, re-assemble the camera and test;  Using the good camera to do cross test, it can check if the camera is ok;...
  • Page 15 All manuals and user guides at all-guides.com A092 L2 Service Manual 3. Touch Pannel  Checking the SW and upgrade the SW;  Checking the FPC of TP and re-assemble it;  Using the good TP to do cross test;...
  • Page 16 All manuals and user guides at all-guides.com A092 L2 Service Manual 4. Ringer  Checking the shrapnel of speaker if is ok;  Checking the resistance of speaker if is ok, otherwise to change a new one;  Checking the FPC if is ok;...
  • Page 17 All manuals and user guides at all-guides.com A092 L2 Service Manual 5. Receiver  Checking the shrapnel of receiver if is ok;  Checking the resistance of receiver if is ok, otherwise to change a new one;  Checking the connector point on the main board if is ok, as below picture;...
  • Page 18 All manuals and user guides at all-guides.com A092 L2 Service Manual 6. MIC and Vibrator  Checking the MIC and Vibrator is cold soldering, re-solder it;  Change the MIC and Vibrator;  Checking the circuit of MIC and Vibrator;...
  • Page 19 All manuals and user guides at all-guides.com A092 L2 Service Manual 7. Earphone  Checking the shrapnel of earphone if is ok;  Checking the connector point on the main board if is ok, as below picture;  Change earphone connector;...
  • Page 20 All manuals and user guides at all-guides.com A092 L2 Service Manual 8. No Power On / Dead  Checking the voltage of battery if is 3.8-4.2V and connect ok;  Upgrade the SW;  Checking the power on key and circuit around it.
  • Page 21 All manuals and user guides at all-guides.com A092 L2 Service Manual 9. No Charging  Checking the voltage of battery if is over 3.4V;  Checking the charger and USB cable if is ok;  Checking the USB connector and circuit if is ok.
  • Page 22 All manuals and user guides at all-guides.com A092 L2 Service Manual 10. No SIM card and No memory card  Checking the connector of T –card and SIM card;  Change the connector of T –card and SIM card; Thanks...