Micromax A111 Service Manual Download Page 27 | Manualshive

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a. Checking the voltage of battery if is 3.8-4.2V and connect ok;

b. Upgrade the SW;

b. Checking the power on key and circuit around it.;

27

8.No Power On

Repairing guide

Power On

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Summary of Contents for A111

Page 1: ...A111 Level 2 service manual ...

Page 2: ...2 content 1 Product introduce p3 p4 2 Disassembly guide p5 p19 3 Structure parts diagram p20 4 Repairing guide p21 p31 ...

Page 3: ...3 Product introduce ...

Page 4: ...equency band WCDMA 2100MHz GSM 900 1800MHz Battery 2100mAh charger Travel charger USB cable MICRO 5PIN earphone 3 5jack LCD TP 5 3 FWVGA TN resolution 960 540 Capacitance TP Glove touch multi point touch 5 point Camera 1 2M and 8 0M CMOS Support GPS BT2 1 WIFI FM Support 3D graphics accelerator accelerator sensor distance sensor light feeling sensor ...

Page 5: ...5 Hot gun Tweezer Solder iron Tommy bar Cross Screw driver 1 Tools list Tweezer Cross screw driver Solder Tommy bar hot gun Disassembly guide ...

Page 6: ...6 2 Battery caver disassembly open the battery cover as the Fig 1 Fig 1 Disassembly guide Battery cover ...

Page 7: ...7 3 Back caver disassembly 1 Unscrew 7 screws in back cover as the Fig 2 Fig 2 Disassembly guide ...

Page 8: ...8 Fig 3 2 Disassemble back cover with Tommy bar as the Fig 3 Disassembly guide Back cover ...

Page 9: ...1 The main components of distribution as the fig 4 Fig 4 Disassembly guide 800M CAM USB con Earphoe con Main PCBA TP con LCD con SIM con T card con Battery con RF cable Main FPC Sub PCBA vibrator Light Sensor con Speaker Support for GSM antenna ...

Page 10: ...2 remove two screws and open the LCD con TP con as the fig 5 10 Fig 5 Disassembly guide LCDcon TPcon ...

Page 11: ...3 remove the volume key FPC power key FPC as the FIG 6 11 Fig 6 Disassembly guide Volume key FPC Power key FPC ...

Page 12: ...4 open the main board and remove the RF cable con And main FPC con as the FIG 7 12 Fig 7 Disassembly guide RF cable con Main FPC con ...

Page 13: ...remove the light sensor and 1 2M camera and 8M camera as the fig 8 13 5 3M camera light sensor disassembly Fig 8 Disassembly guide Light sensor con Support For Light sensor Light sensor FPC 1 2M cam ...

Page 14: ...14 Fig 9 6 Power key FPC volume key FPC disassembly remove the power key FPC and volume key FPC with the iron as the fig 9 Disassembly guide Power key FPC Volume key FPC ...

Page 15: ...15 Fig 10 remove the receiver and speaker as the FIG 10 7 receiver and speaker disassembly Disassembly guide Speaker receiver ...

Page 16: ...16 Fig 12 8 Sub PCBA disassembly remove two screws and the sub PCBA and Support for GSM antenna from the as the fig 12 Disassembly guide Sub PCBA vibrator ...

Page 17: ...17 Fig 11 9 RF cable Main FPC disassembly Remove the RF cable and main FPC as the fig 11 Disassembly guide RF cable con main FPC con main FPC RF cable ...

Page 18: ...18 Fig 13 10 MIC vibrator disassembly Remove MIC as the fig 13 Disassembly guide MIC CON MIC ...

Page 19: ...3in1 module LCD TP front cover Back cover Battery cover Main FPC RF cable Main PCBA Sub PCBA 1 2M camera 8M camera SPK Light sensor receiver Sensor holder Support for GSM antenna Volume key FPC Power Key FPC Power Key Volume Key ...

Page 20: ...to upgrade the SW b Check the LCD if is ok otherwise change a new LCD c If that the LCD loose re assemble the LCD and test d Checking the LCD connector if is ok otherwise re solder it or change a new one e Checking the circuit around the LCD connector LCD connector ...

Page 21: ...Using the good camera to do cross test it can check if the camera is ok c Checking the camera connector if is ok as below picture otherwise to re solder or change a new one d Checking the circuit around the camera connector Repairing guide Back Camera connector Front Camera connector ...

Page 22: ...ade the SW b Checking the FPC of TP and re assemble it c Using the good TP to do cross test d Checking the TP connector otherwise re solder or change a new one e Checking the circuit around the TP connector Repairing guide TP Connector ...

Page 23: ...Checking the shrapnel of speaker if is ok b Checking the resistance of speaker if is ok otherwise to change a new one c Checking the FPC if is ok d Checking SPK FPC if connector with sub board is ok Repairing guide ...

Page 24: ...pnel of receiver if is ok b Checking the resistance of receiver if is ok otherwise to change a new one c Checking the connector point on the main board if is ok as below picture c Checking the receiver circuit if is ok Repairing guide ...

Page 25: ...king the MIC and Vibrator is cold soldering re solder it b Change the MIC and Vibrator c Checking the circuit of MIC and Vibrator d Checking the FPC if connect ok 25 6 MIC and Vibrator Repairing guide MIC CON ...

Page 26: ... the shrapnel of earphone if is ok b Checking the connector point on the main board if is ok as below picture c Change earphone connector c Checking the circuit of earphone 26 7 Earphone Repairing guide earphone ...

Page 27: ...a Checking the voltage of battery if is 3 8 4 2V and connect ok b Upgrade the SW b Checking the power on key and circuit around it 27 8 No Power On Repairing guide Power On ...

Page 28: ...a Checking the voltage of battery if is over 3 4V b Checking the charger and USB cable if is ok c Checking the USB connector and circuit if is ok 28 9 No charging Repairing guide USB Connector ...

Page 29: ...a Checking the connector of T card and SIM card b Change the connector of T card and SIM card 29 10 No SIM card and No memory card Repairing guide T card connector SIM Connector 2 SIM Connector 1 ...

Page 30: ...a Checking RF line if that is broken b Checking RF line assemble if is ok 30 11 Signal Repairing guide RF connector Sub board RF connector ...

Page 31: ...End ...

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