CONTENTS Electronic Basics

CONTENTS

1. Electronic Basics

2. Soldering Techniques

3. Ohm’s Law

4. Electrostatic Electricity

5. How a GSM Cellular Network Operates

6. Cell & Cell Sector Technology Explained

7. The Concept of Cellular technology and the GSM system

8. The GSM Concept

9. SIM Cards, identity numbers,IMSI, PIN, and PUK

10. How Cell Phones Work – the Cell Approach

11. From Cell to Cell

12. Cell Phones & CB Radios

13. Inside a Cell Phone -Components explained

14. Advanced Mobile Phone System – AMPS

15. Digital System

16. Cellular Access Technologies

17. Cell Phone Towers and Base Stations

TECHNICAL SECTION

18. Component Identification – Base Band, RF Section, Control

19. Cellular Phone Repairs – Types of Damages incurred

20. Cellular Phone Repairs – Notes on Batteries

21. Trouble Shooting Steps – Introduction

22. Most Common Components Used in a Cellular Phone and problems that occur.

23. Dissasembly of Cellular Phones

24. Assembly of a Cellular Phone

25. Most Common Problems that occur

26. Cellular Phone Repairs – Replacing a LCD (Liquid Crystal Display)

27. Cellular Phone Repairs – Replacing Speakers

28. Cellular Phone Repairs – Replacing Microphones

29. Cellular Phone Repairs – Replacing Ringers

30. Cellular Phone Repairs – Replacing Charging Block/Systems Connector

31. Cellular Phone Repairs – Replacing Antennas

32. Cellular Phone Repairs – Liquid & Moisture Damaged Phones

33. Cellular Phone Repairs – Refurbishing of Phones

34. Cellular Phone Repairs – Power on Procedure of a Cell Phone

35. Quick Trouble Shooting Guide & Required Action– Cell Phone Batteries

36. Quick Trouble Shooting Guide & required Action – Phone Has No Power – Switches Off

37. Quick Trouble Shooting Guide & Required Action – Phone Has No Power

38. Quick Trouble Shooting Guide & Required Action – Phone Not Charging

39. Quick Trouble Shooting Guide & Required Action – Phone Not Receiving Signal

40. Quick Trouble Shooting Guide & Required Action – SIM CARD related Problems

41. Quick Trouble Shooting Guide & Required Action – Liquid Crystal Display (LCD) problems

42. Quick Trouble Shooting Guide & Required Action – Call Dropping

43. Setting Up your Workshop

44. Tools and Consumables.

45. Possible Examination Questions.

HANDS ON PRACTICAL

You will now get the opportunity to put into practice what you have learnt in the Theory section of the Course

1. Getting Familiar with tools of the trade –
Hot Air Station
Soldering Station
Toolkit
Multimeter
Handling Components.
2. Desoldering and soldering componenets from and onto PC Boards

3. Tracing Faults

4. Repairing Phones – Replacing Key Board Components.

5. BGA (Ball Grid Assembly) component replacement

6. Fitting of Faceplates, casings

7. EXAMINATION