Gsm Phones

 Below is this year’s WAEC syllabus for Gsm Phones Maintenance And Repairs . Note that this syllabus is for both Internal and external candidates.

PREAMBLE

This syllabus is designed to assess candidates’ basic skills of maintenance of mobile phones, in terms of knowledge and competence in fault finding and systematic repairs. It also assesses candidates’ knowledge of setting up and managing a mobile phone maintenance and repair enterprise.

AIMS AND OBJECTIVES

The aims and objectives of the syllabus are to test candidates’ knowledge and understanding of:

  1. Basic concept and terminologies
  2. Tracing, testing, trouble shooting, maintenance and repairs of mobile phones
  3. Analyzing mobile phones PCB circuits
  4. Different fault finding techniques
  5. Using internet resources, data manuals, service manuals and trouble-shooting manuals
  6. General safety precaution in mobile phones repair and maintenance
  7. The requirement for setting up and successfully running a mobile phone maintenance and repair business

SCHEME OF EXAMINATION

There will be two papers – Paper 1 and Paper 2. The papers shall be a composite paper to be taken at one sitting.

PAPER 1:  Will consist of 40 multiple choice objective questions to be answered in 45 minutes.  The paper will carry 40 marks.

PAPER 2:   Will consist of two sections, Sections A and B both lasting 1 ¾ hours and carrying a total of 100 marks.

Section A will comprise twelve essay questions. Candidates will be required to answer any ten of them in 55 minutes for a total of 60 marks.

Section B will comprise two questions on test of practical work for candidates to          answer all in 50 minutes for 40 marks.

DETAILED SYLLABUS

CONTENT NOTES
 

A.    INTRODUCTION TO MOBILE PHONES AND SERVICE PROVIDERS

1.      Mobile phones acronyms and terminologies

 

 

 

 

2.      Mobile phone bands and their uses

 

3.      Types of mobile phones

 

4.      Phone accessories and their functions

 

 

 

5.      Types of menus and sub-menus

 

 

6.      Service providers and their  codes

 

B.     BASIC COMPUTER AND INTERNET CONCEPTS.

1.      Introduction to computer

 

 

 

2.      Introduction to internet

 

 

3.      Browsing the web

 

 

C.    ESSENTIAL COMPONENTS OF MOBILE PHONES AND THEIR FUNCTIONS

1.      Structure of mobile phones

 

 

2.      Hardware components

 

 

 

3.      Software components

 

 

D.    MAINTENANCE AND REPAIR OF MOBILE PHONES

1    Electronic components in mobile       phones

2    Preventive maintenance

3    Corrective maintenance

 

 

4    Common tools and equipment for                         hardware and software repairs.

 

 

 

 

 

 

5     Safety in mobile phone workshop

 

 

 

6      Common hardware problems

 

 

7      Common software problems

 

 

 

E.     TROUBLE-SHOOTING

1.      Basic trouble-shooting

 

 

 

 

 

 

 

 

 

 

 

2.      Tracing and fault finding in hardware

 

 

 

 

 

 

 

 

 

 

3.      Fault finding in software

 

 

 

 

 

 

 

 

F.     SETTING UP AND MANAGING MOBILE PHONE WORKSHOP

1.      Setting up a mobile phone work shop

 

2.      Facilities/equipment for mobile phone workshop.

3.      Managing a mobile phone business

     

 

 

 

 

Definition of mobile phones and its terminologies

Terminologies should include GSM, CDMA, mobile phones/cell phones/user equipment, MMS, SMS, call barring, call forwarding, BSI, DCT, FPS etc.

Band—single, double, tri and quad bands and their uses.

Mobiles phone types—straight, flip, slides etc. and their special maintenance needs.

All phone accessories including; headsets/hands free, earpiece, external Bluetooth, batteries, chargers, cables etc. and their functions.

Menus and sub-menus including; phone book, message, call, settings, applications etc. and their functions

Major voice service providers and their service codes.

 

 

Definition, identification and functions of various computer hardware (monitor, CPU, keyboard etc.) and software (operating and application) components.

Web access platform Including;  WAP/GPRS/EDGE/Wi-Fi/3G etc.

 

Browsing activities like downloading, uploading etc.

 

 

 

 

Basic block diagram (power unit, memory unit and radio unit) and functions of each block.

Identification, description and functions of various hardware components including CPU, SIM socket, earpiece, keypad, buzzer, vibrator etc.

Various software components both operating and application software.

 

 

 

Resistors, capacitors, diodes, transistors, IC, e.t.c.

Definitions, functions, reason, advantages and procedures (cleaning, soldering, de-soldering, re-balling etc.) of preventive and corrective maintenance

Identify common tools and equipment for hardware repairs such as; star, Allen key, lead,  precision set, multi-meter, oscilloscope, computer set  soldering iron and sucker etc. and their uses.

Identify common software tools for repair such as; unlocking software, flashing software firmware installation etc.

List safety rules and regulations. Safe use of maintenance tools. Basic safety facilities in the mobile phone workshop (first aid box, fire extinguishers etc.)

Identification of hardware problems such as damaged screen, charging ports, mouthpiece, earpiece, keyboard etc.

Identification of software problems such as; ‘contact service provider’, ‘phone lock code’, ‘invalid SIM’, ‘SIM card rejected’ etc.

 

 

Dissembling and assembling, testing and trouble shooting of component such as displays, speakers, vibrators, ringers, charging ports, charging jacks, batteries, keypads, panels etc.

Trouble shooting/fault finding using relevant mobile phone menus.

Identification of mobile phone ICs and electronic components.

Reading of PCB circuit layout and schematic diagrams.

 

Identification of faulty components (using visuals, continuity test, open circuit, short circuit etc.)

Test voltages on PCB (voltage levels at various points and voltage specification of IC pins)

Trouble-shooting techniques—metering methods, signal tracing/injection, component testing, visual inspections etc.

Trouble shooting Surface Mount Devices (SMD)/ Ball Grid Array (BGA) etc.

 

Use of software codes for faults finding. Fault find related to software (SIM locked, SIM rejected, hanging problem, restart problem etc.)

Flashing of mobile phones—flashing devices, flashing software and their uses

Phone lock/security unlocking/resetting counters

 

 

 

Capital, personnel and factors that determining choice of location

Identify appropriate facilities/equipment for a mobile phone workshop.

Risk analyses, costing, return on investment etc.

      

SUPERVISED APPRENTICESHIP  (INDUSTRIAL TRAINING)

Candidates are required to spend a minimum cumulative total of eight weeks of apprenticeship in an accredited repair and maintenance centre.

LIST OF MINIMUM ITEMS OF EQUIPMENT FOR A CLASS OF FIFTY CANDIDATES

ITEM

NO

EQUIPMENT QUANTITY

REQUIRED

QUANTITY

SEEN

1 Scrap mobile phone/Mobile phone parts 10
2 Mobile phone manuals 10
3 Mobile phone 50
4 Chat of service codes 1
5 Phones accessories (various types) 25
6 Data cable (various types) 25
7 Oscilloscope 2
8 Multi-meter(Analog/digital) 10
9. Brush 25
10 Soldering iron 10
11. Safety chart 1
12. Hammer 25
13. Spanner(various types) 25
14. Tweezer 10
15. PCB Board holder 25
16. Cutter 25
17. Magnifying desk lamp 10
18. Ultrasonic cleaner 1
19. Re-balling kits (Chat) 05
20. Flashing and unlocking devices 02
21. Cables and wires Assorted
22. DC Regulated power supply 02

 

One Response

  1. Anonymous Anonymous January 23, 2017

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