ADVANCE MOBILE REPAIRING COURSE

Basic Electronics Module 1

Introduction to electronics

AC &DC voltages , current & Power

Identifying electronic components and their symbols

Active components & Passive Components

Resistors, Capacitors, Coil, Boost Coil, variable Resistors, Diodes, Transistors, IC explaining properties, physical appearance, checking methods and  remove and replace components.

Explaining Digital Multimeter and checking different components.

Hot air blower usage and soldering and desoldering methods.

Mobile Hardware Module 2

How cell phone works

Mobile technologies FDMA, TDMA (GSM), CDMA

Explanation of Cell phone block diagram

Assembly and Disassembly  mobile phone

Identification ,working concepts of components like  Antenna switch ,Different types IC ‘s , Oscillator  Crystal ,Speaker, Ringer ,Vibrator, SIM , Camera , LCD , Touch screen , Keypad , Power switch , Battery connectors etc

SPEAKER

Speaker theory, types of speakers used in cell phone and checking procedure.

Speaker problems like low sound, Disturbed sound and No sound & circuit oriented problems explanation.

External speaker circuit explaining and problems with headphones.

MIC

Microphone theory and various mics used in cell phones.

Mic circuit explanation and circuit oriented problems solving.

External Mic circuit problems

Loudspeaker or Ringer or Buzzer  & Vibrator or Motor & LED

Various types of loudspeakers used in Cell phones and checking, Buzzer problems like no ring sound. Circuit explanation and problems solving.

Types of vibrators used in cell phone, theory, checking and problems solving.

LED theory and circuit explanation, problems with LED’s like Keypad LED and LCD LEDs.

KEYPAD

How keypad functions

Keypad circuit Explanation

Keypad problems like any one is not working , 2 or 3 keys are not working and total keyboard is not working.

Keypad IC soldering method with hot air blower.

LCD & Touch Screen

LCD and touch screen theory

LCD display & touch screen  problems and circuit explanation & Problems solving

Display IC soldering method with hot air blower.

Battery

Battery theory

Types of Batteries used in Cell phones

Checking mobile battery voltage

BSI & B-Temp circuit explanations

Charging

Charging circuit explanation

Charging problems like nothing happed when charger connected, self charging, not charging etc

Remove and replace charger connector using hot air blower

Camera & Blue tooth & GPS

Camera functioning

Various camera modules

Solving camera module and circuit problems

Bluetooth function and problems solving

GPS functions

Sensors

Types of sensors used in cell phone

Sensors problems

Network

Rx path and Tx Path block diagram and circuit explanation

Network related problems and their solutions

Dead phone

Water dropped phone problems & solutions