Here's a best gsm links for all new
learners in GSM industry, Learn the
basic here like me. I learned here from the start. I'm just a mobile
phone
sales lady a year ago but now rock fixing mobile phones.All lessons herein were all simplified and a few
general technical terms being reduced to make easy learning and
understanding, Images and Pictures were also gathered and choose
appropriately to support every aspects of learning.
These tutorials covers the following step by step lessons:
LESSON 01
Basic Information How Cellphone Works?Learning with Block Diagram on How basically Cell-phone works?
LESSON 02
Introduction To Basic Electronics
Ohm's Law
Series Circuit
Parallel Circuit
Identifying Electronics Components and Circuit Symbols
Resistors
Capacitors
Transistors
Diodes
Fuse
Coils & Inductors
Crystal Oscillators
RF & IF Amplifiers and Filters
EMI and ESD Filters
LESSON 03
Preparing the Proper Tools For Repairing
Opening Tools and Tweezers
Soldering and Desoldering Tools
Muti Tester
SMD Rework Stations
DC Power Supply
Cleaning Kits
Reballing Kits
Working Table Equipments
LESSON 04
Safety Procedures and Proper Handling of Tools and Test Equipments on Cellphone Repair
How To Use and Read a Multimeter Tester
Test and Check up Procedures on Basic Electronics Components
LESSON 05
Introduction to Reading Cellphone's Schematic Diagrams
Identifying Component Symbols and Layout in Schematic Diagram
How to Identify Resistor's Symbols and Layout
How to Identify Capacitor's Symbols and Layout
How to Identify Transistor's Symbols and Layout
How to Identify Diodes Symbols and Layout
How to Identify Coil Symbols and Layout
How to Identify Integrated Circuit Symbols and Layout
How to Identify DC to DC Voltage Drivers, Regulators and
Convertes Symbols and Layout
How to Identify EMI-ESD Symbols and Layout
How to Identify RF Filter Symbols and Layout
How to Identify Battery Cell Symbols and Layout
How to Identify Power Switch , Mouthpiece, Earpiece and Ringtones Speakers User Interface Symbols and Layout
How to Identify Clock Crystal Oscillator Symbols and Layout
How to Identify Fuse Symbol and Layout
How to Identify the Lines and Symbols on Schematic Diagram
LESSON 06
How to Find and Locate Components on PC BoardHow to Solder SMD Components Manually by Hand
How to Reball BGA Chips Manually by Hand
Identifying and Familiarization of Common Mobile Phones Components and Spare Parts
Liquid
Crystal Display LCD's Touch Screen Panels Microphones Micro Speakers
Switches Charging Pins Antenna's Batteries Battery Connectors USB
connectors
Familarization: Components and Parts on Nokia Mobile Phone Handsets
Familarization: Components and Parts on Samsung Mobile Phone Handsets
Familarization: Components and Parts on Sony Ericsson Mobile Phone Handsets
Familarization: Components and Parts on Motorola Mobile Phone Handsets
Familarization: Components and Parts on iPhone Mobile Phone Handsets
Familarization: Components and Parts on Blackberry Mobile Phone Handsets
Familarization: Components and Parts on HTC Mobile Phone Handsets
Understanding Major Integrated Circuits (IC)on Mobile Phones
Power Management IC
Application Processor
Flash IC
RAM IC
Basic Hardware Handling Procedures
Proper Disassembling and Assembling Methods
How to Test Mobile phone Speaker,Buzzer or Ringer
How to Test Mobile phone Microphone or Mouthpiece
How to test Mobile Phone Charger Voltage
How to Test Mobile Phone Vibra Motor
How to check Mobile Phone Battery Voltage
How to test Power ON OFF Switch
Hardware Troubleshooting Basics
How to Troubleshoot Not Charging Issues
How charging circuit works
No Charging Response
Charger Not Supported
Not Charging
How SIM Circuits works
Insert Sim Card Problem
Invalid Sim Card
How Keypad Circuits Works
How to Map and Trace keypads Lines
Understanding The LED light Circuits
Explanation on How Audio Circuits work
Mouthpiece
Earpiece
Buzzer
Ringer
Headset
Vibra motor
How LCD Display Circuit Works
Basic Mobile Phones Hardware Repair Techniques
Basic on Software Handling
What is Flashing
What is Unlocking
