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Tablet Repair Training

BASIC ELECTRONICS

  • AC, DC, Current, Voltage, Ampere
  • Types of circuit, material
  • Measurement unit
  • Use of multi-meter, digital analog multi-meter.
  • How to check AC, DC, and OHMs resistance
  • Different SMD components
  • Resistor, Diodes, Capacitors
  • Inductors, Transformers, Transistors
  • MOSFET

INTRODUCTION OF TABLET PC

  • Basic working detail of laptop and mobile phones
  • Network section of mobile phones
  • Hard disk, ram, CPU, WIFI, Bluetooth section of laptop
  • Difference between computer, laptop, tablet pc , iPAD, mobile, smart phone
  • Basic operating of tablet pc
  • Menu, setting, Bluetooth, GSM, CDMA, etc

TYPES OF OPERATING SYSTEMS IN TABLET PC

  • Android, operating system in tablet
  • 4.0.X ice cream sandwich
  • 3.X.X honey comb
  • 2.3.x ginger bread
  • 2.2 froyo
  • Basic used detail of android

FORMATTING INSTALLING OPERATING SYSTEMS IN TABLET PC

  • FACTORY RESET,
  • WIPES.
  • Firmware update from SD card
  • How to find firmware thru PCB
  • Flashing thru ODIN in Samsung
  • Flashing thru IUW in HCL tablet EM 73
  • Boot option in HCL standard boot, recovery boot, fdwn boot , fast boot
  • Installation of operating systems in tablet Pc
  • Android operating system
  • Upgrading operating system
  • Changing operating systems

APPLICATION INSTALLATION

  • Application installation on tablet pc
  • Application install from market
  • Application install from memory card
  • Troubleshooting of Operating systems.
  • Troubleshooting of Application software.
  • Troubleshooting of Tablet PC

TEARDOWN / DISMENTAL TABLET PC

  • Basic video of opening and closing demo
  • Assembly & disassembly of tablet pc demo on 3 models

IDENTIFICATION PARTS OF TABLET PC

  • Adapter/charger
  • Battery
  • Ram &Rom
  • Keyboard of tablet pc
  • Display windowsTouch screen/ touchpad
  • Display modules LCD / TFT/ LED Display
  • Primary Camera /secondary camera
  • Motherboard main PCB
  • Processor
  • Antenna Carrier
  • Loudspeaker
  • LED PCB
  • Hard Disk / memory card flash chip
  • BIOS / CMOS setting
  • Testing of parts

COMPONENT CHECKING & IDENTIFY

  • Identify damaged and ok component
  • Removing and Inserting component practice

TABLET PC REPAIRING CONCEPTS

  • Adapter Repairing concepts
  • Battery Repairing boosting concepts
  • Inverter Section and CCFL Testing
  • Hard Disk / Internal Hard disk
  • RAM and ROM
  • Touchpad

BLOCK DIAGRAM OF TABLET PC

  • Understanding motherboardblock diagram of Tablet PC
  • Different section of tablet pc
  • Top view of motherboard
  • Bottom view of motherboard
  • Identify each chip and understand different section
  • Working detail of tablet pc motherboard

DIFFERENT SECTION OF TABLET PC

  • Power section of tablet pc
  • Initial failure
  • Charging section
  • SIM section
  • Microphone section
  • Speaker section
  • Bluetooth WIFI section
  • LCD section & troubleshooting of tablet pc
  • Touchscreen section & troubleshooting in tablet pc
  • Light sensor
  • Camera not work front/ back
  • GSM 850/ 900 / 1800 /WCDMA section

UNDERSTANDING SCHEMATIC DIAGRAM OF TABLET PC

  • Understanding Circuit diagram of power section
  • Voltage measurement in Tablet pc
  • Troubleshooting power on failure in Tablet
  • Use of Debug card post error code.
  • Common problem of different motherboards

PROBLEM AND SOLUTION STEPS OF TABLET

  • Power on does not work
  • Tablet initial failure
  • Abnormal charging
  • Insert SIM cart (after inserting SIM)
  • Microphone not work
  • Speaker not work
  • Bluetooth WIFI not working
  • LCD is not work after PWR ON
  • Touch screen does not work
  • Camera does not work
  • Network Not work (GSM, 850,900,1800, WCDMA)
  • Using Oscilloscope (CRO)

REPAIRING AND BGA REWORK OF TABLET PC

  • Removing ICs by Hot Air Gun Machine (SMD Machine).
  • iCs re-balling by BGA machine. Concept