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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
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THE AUTHOR THANKS FOR THE THE BIG SUPPORT TO
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to the whom it may concern,
i am very thankful that i was accepted in this forum, i may ask also some apology if ever i may post wrongly and would be pleased enough to accept some advices from the group, i am proud to be one of you. more power to forum
to the whom it may concern,
i am very thankful that i was accepted in this forum, i may ask also some apology if ever i may post wrongly and would be pleased enough to accept some advices from the group, i am proud to be one of you. more power to forum
A good comment, the desires of his heart is being explained............
helo friend of my friend ...???
after I learned how to check a component tutorials for novice technicians ..? and the book helped me in the schematic diagram and very useful for me and I concluded in a single series of mobile phones is set or controlled by: .. Capacitor and Resistor Inductor or coil.
I have difficulty in analyzing it ...??
example:
Capacitor with value
C = 1u0
C = 1n0
C = 33n
C = 4u7
C = 3n3
Resistor with a value:
R = 220R
R = 14v/50v
R = 1k0
R = 33R
Convolution with a value of:
L = 22nH
L = 240R/100 mhz
L = 3n9H
My question:
1. How do I calculate the value of the symbol of the above
(Please this was possible with his example)
2. What do the numerical values for the capacitors / resistors and coil
3. Which is in the measure should be electrified
I tried measuring using analog and avo avo meter digital meter
My question above to avoid mobile phones that will be fixed from the consumer good .. but after the service so the total dead
Thank you very much for your concern and fellow colleagues and I hope all missed
and thanks also to the Administrator of this forum.
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