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Showing posts with label RENDOM PRODUCTS. Show all posts
Showing posts with label RENDOM PRODUCTS. Show all posts

Monday, March 8, 2021

11:51:00 PM

BCOME EXPORTS IN LAPTOP MOTHERBOARD REPAIR



Part 1 : Smartphone Repairs

1. Cellphone Basics 
2. Block Diagrams
3. Hardware Troubleshooting & Repair
4. Software Troubleshooting & Repair
5. Flashing & Unlocking Techniques 
6. User lock, SPC, MSL, FSC, OTKSL
7. GSM unlocking: using codes
8. Using software to remove user lock, SPC
9. what is prl
10. what is ESN/MEID
11. CDMA Software Defined 

Part 2: Basic Electronics Declassified:

1. Ohm's Law
2. Series Circuit
3. Parallel Circuit
4. Identifying Electronics Components and Circuit Symbols
5. Resistors
6. Capacitors
7. Transistors
8. Diodes
9. Fuse
10. Coils & Inductors
11. Crystal Oscillators
12. RF & IF Amplifiers and Filters
13. EMI and ESD Filters

Part 3: Tools and Test Equipments

1. Safety Procedures and Proper Handling of Tools and Test Equipments
2. How To Use and Read a Multimeter Tester
3. Test and Check up Procedures on Electronics Components
4. Preparing the Proper Tools For Repairing
5. Opening Tools and Tweezers
6. Soldering and Desoldering Tools
7. Muti Tester
8. SMD Rework Stations
9. DC Power Supply
10. Cleaning Kits
11. Reballing Kits
12. Working Table Equipments

Part 4: Schematic Diagrams

1. How to Read Cellphone's Schematic Diagrams
2. Identifying Component Symbols and Layout in Schematic Diagram
3. How to Identify The Follwing:
4. Resistor's Symbols and Layout
5. Capacitor's Symbols and Layout
6. Tansistor's Symbols and Layout
7. Diodes Symbols and Layout
8. Coil Symbols and Layout
9. Integrated Circuit Symbols and Layout
10. DC to DC Voltage Drivers, Regulators
11. Convertes Symbols and Layout
12. EMI-ESD Symbols and Layout
13. RF Filter Symbols and Layout
14. Battery Cell Symbols and Layout
15. Power Switch , Mouthpiece, Earpiece and Ringtones Speakers
16. User Interface Symbols and Layout
17. Clock Crystal Oscillator Symbols and Layout
18. Fuse Symbol and Layout
19. Lines and Symbols on Schematic Diagram

Part 5: SOLDERING, SOLDERING, SOLDERING

1. How to Find and Locate Components on PC Board
2. How to Solder SMD Components Manually by Hand
3. Master soldering on any electric board
4. BASICS OF SOLDERING
5. Advantages of Soldering
6. What is Soldering & de-soldering? Lead free or not?
7. Hand soldering vs. machine soldering
8. Electric tools used in soldering: Soldering machines, Hot-Air machines, Pre-heaters, Infrared machines,
9. Rework stations...etc
10. Soldering tips & soldering irons
11. Hand tools & accessories used in soldering: magnifier, tweezers, Fume Extractor , sponges.etc
12. Chemicals used in soldering: flux, lead, solder wire, flux remover, tin

Part 6: APPLICATION OF SOLDERING IN CELL PHONE REPAIR

1. Types of circuit boards: PCB solder types and cell phone generations
2. Which electronic components are found in a cell phone PCB
3. diode, transceiver, transistor, integrated circuit, 2 point solder joints or 3 joints multi points?
4. Underfill & under film
5. Practical basic soldering trainings
6. Basic and intermediate applications for training
7. Soldering charging ports
8. Soldering power buttons
9. Soldering flex cables
10. Soldering SIM card trays
11. Memory modules
12. Camera modules
13. Battery sockets
14. LCD Connector modules
15. How to Reball BGA Chips Manually by Hand
16. Identifying and Familiarization of Common Mobile Phones Components and Spare Parts
17. LCD's Touch Screen Panels Microphones Micro Speakers Switches Charging Pins Antenna's Battery
18. USB connectors

Part 7: Integrated Circuits

1. Understanding Major Integrated Circuits (IC) on Mobile Phones
2. Power Management IC
3. Application Processor
4. Flash IC
5. RAM IC
6. Hardware Handling Procedures
7. Proper Disassembling and Assembling Methods
8. How to Test Mobile phone Speaker,Buzzer or Ringer
9. How to Test Mobile phone Microphone or Mouthpiece
10. How to test Mobile Phone Charger Voltage
11. How to Test Mobile Phone Vibra Motor
12. How to check Mobile Phone Battery Voltage
13. How to test Power ON OFF Switch


Part 8: LIQUID DAMAGE

1. Types of liquid damage: Toilet, fresh, salt, food
2. Tools used in treatment
3. Chemicals used in treatment


Part 9 : Troubleshooting

1. Hardware Troubleshooting Basics
2. How to Troubleshoot Not Charging Issues
3. How charging circuit works
4. No Charging Response
5. Charger Not Supported
6. Not Charging
7. How SIM Circuits works
8. Insert Sim Card Problem
9. Invalid Sim Card
10. How Keypad Circuits Works
11. How to Map and Trace keypads Lines
12. Understanding The LED light Circuits
13. Explanation on How Audio Circuits work
14. Mouthpiece
15. Earpiece
16. Buzzer
17. Ringer
18. Headset
19. Vibra motor
20. How LCD Display Circuit Works
21. Understanding How RF circuit works