Basic Electronics

• 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

• 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