VTE-281 Cellular Phone Servicing

Course Description:    This subject deals with the principles of operation and servicing of cellular phones and the updated method in software troubleshooting of popular china phones. It includes the manufacturers’ procedures in servicing, systematic procedures in diagnosing faults, repairing of cellular phones, reassembling and testing repaired cellular phones according to industry standards.

  • Prerequisite Course: VEE 135 Digital electronics 1
A. PROGRAM LEARNING OUTCOMESPLOs):
The student will be able to:
  1. Practice safety and occupational health procedures in the workplace.
  2. Use electronics tools and test equipment competently.
  3. Interpret schematic diagrams and waveforms.
  4. Build electronics projects to a given specification.
  5. Practice a career in the Telecom industry.
  6. Troubleshoot microwave, fiber optic, radio communication and telephone system.
B. STUDENT LEARNING OUTCOMES (SLOs)- GENERAL:
 The student will be able to:
  1. Describe the fundamentals and operation of a cellular phone.
  2. Describe and inspect the common parts of a cellular phone.
  3. Identify and test cellular phone accessories and attachments.
  4. Identify and describe symptoms and troubles of a cellular phone using service manual procedures.
  5. Troubleshoot hardware and software problems commonly encountered in a cellular phone.
  6. Assemble and disassemble different brands of cellular phones.

SLO

PLO 1

PLO 2

PLO 3

PLO 4

PLO 5

PLO 6

1

I

D

D

D

M

M

2

I

D

D

D

M

M

3

I

D

D

D

M

M

4

I

D

D

D

M

M

5

I

D

D

D

M

M

6

I

D

D

D

M

M

I = Introduced
D = Demonstrated
M = Mastered

C. STUDENT LEARNING OUTCOMES (SLOs) - SPECIFIC:
The student will be able to:

General SLO 1: Describe the fundamentals and operation of a cellular phone.


Student Learning Outcomes

Assessment Strategies

1.1 Discuss the mobile phone basics

Competence will be demonstrated
through quizzes, written test and
practical exam.

1.2 Differentiate analog signals and digital signals used in cellular phone
1.3 Identify data signals, messages protocols and radio signal protocols.
1.4 Identify and describe different cellular network signals
1.5 Enumerate the different coding standards for cellular phones
1.6 Describe the safety handling of cellular phone

General SLO 2: Describe and inspect the common parts of a cellular phone.


Student Learning Outcomes

Assessment Strategies

2.1 Identify and describe parts and function of cellular phone

Competence will be demonstrated
through  quizzes, written test and practical exam.

2.2 Identify and describe the external chassis and internal main board.

2.3 Identify and describe output parts (LCD, vibra motor and speaker).

2.4 Identify and describe input parts (keymat, keypads, microphone, camera, bluetooth, infra red and stylus).

2.5 Perform and setup flasher box and software
application for software servicing.

2.6 Perform hardware troubleshooting procedure using service manual.

General SLO 3: Identify and test cellular phone accessories and attachments


Student Learning Outcomes

Assessment Strategies

3.1 Name different types of peripheral attached devices used in cellular phones.                                               

Competence will be demonstrated
through  quizzes, written test and practical exam.

 

3.2 Discuss and perform the procedure of testing earphones.

3.3 Discuss and perform the steps of testing power supply chargers using the service manuals.

3.4 Discuss and perform the process of testing communication cables used on cellular phones.

3.5 Describe and perform the techniques used to remove cell phone cameras by following the service manuals’ procedures

3.6 List and perform the procedures of removing and testing cellular phone batteries by following the service manuals.

General SLO 4: Identify and describe symptoms and troubles of a cellular phone.


Student Learning Outcomes

Assessment Strategies

4.1 Identify and describe various trouble symptoms commonly found in cellular phones.

Competence will be demonstrated through  quizzes, written test and practical exam.

4.2 Identify and describe the techniques used in repairing repair NO SIGNAL by following the service manual procedures.

4.3 Identify and describe the techniques used in repairing NO POWER by following the service manual procedures.

4.4 Identify and describe the procedures used in repairing NO TONE by following the service manuals.

4.5. Identify and describe procedures used to repair and replace LCD by following the service manuals.
4.6 Identify and describe the steps software flashing by following the service manuals.

General SLO 5: Troubleshoot hardware and software problems commonly encountered in a cellular phone.


Student Learning Outcomes

Assessment Strategies

5.1 Describe and perform techniques used for Ball Grid Array (BGA) Integrated Circuit (IC) replacement by following the service manual procedures.

Competence will be demonstrated
through  quizzes, written test and practical exam.

5.2 Explain and perform the procedures used for backlight replacement by following the service manual procedures.

5.3 Describe and perform the steps used for flashing and unlocking procedures by following the service manuals.

5.4 Describe and perform the procedures used for data uploading and downloading using the service manual.

5.5 Describe and  perform the procedures used to install
and upgrade application software by following the service manuals.

5.6 Describe and perform flex cable replacement

General SLO 6: Assemble and disassemble different brands of cellular phones.


Student Learning Outcomes

Assessment Strategies

6.1 Identify the specialized tools used to assemble and disassemble cellular phones by following service manual procedures.

Competence will be demonstrated
through  quizzes, written test and practical exam.

 6.2 Perform cover assembly and disassembly using the service manual procedure.

 6.3 Perform chipboard assembly and disassembly by using the service manual procedure.

 6.4 Perform chassis clips and lock removal and replacement by using the service manual procedure.

6.5 Perform snap on clips removal and replacement by using the service manual procedures.

6.6 Perform cell phone screw proper removal by using the service manual procedures.

D. COURSE CONTENTS

  1. Fundamentals and operation of cellular phone
    1. Mobile phone basics
    2. Analog vs digital signal
    3. Data signals, messages protocols and radio signal protocols
    4. Cellular network signals
    5. Coding standards for cellular phones
    6. Safety handling of cellular phone
  2. Parts of cellular phone
    1. Parts and function of cellular phone.
    2. External chassis and internal main board.
    3. Output parts (LCD, vibra motor and speaker).
    4. Input parts (keymat, keypads, microphone, camera, bluetooth, infra red and stylus)
    5. Flasher box and software application for software servicing
    6. Troubleshooting procedure using service manual.
  3. Cellular phone accessories and attachments
    1. Peripheral attached devices used in cellular phones.
    2. Testing of different earphones.
    3. Power supply chargers
    4. Data cables
    5. Cellular phone camera
    6. Cellular phone batteries
  4. Symptoms and troubles of cellular phone
    1. Common trouble symptoms
    2. No Signal
    3. No Power
    4. No Tone
    5. LCD Problem
    6. Software troubles
  5. Troubleshooting of cellular phone
    1. BGA IC replacement
    2. Backlight replacement
    3. Flashing and unlocking
    4. Uploading and downloading of data
    5. Installing and upgrading of application software
    6. Flex cable replacement
  6. Assembling and reassembling of cellular phone
    1. Specialized tools in cellular phone servicing
    2. Servicing using service manual method
    3. Chipboard
    4. Chassis clips and locks
    5. Snap on clips
    6. Torx screw
E. METHODS OF INSTRUCTION

Computer Aided Instruction
Practical/Experimentation
Lecture/Demonstration

F. REQURIED TEXT(S) AND COURSE MATERIALS:

Linholm, C., Keinonen T., & Kiljander, H. (2003). Mobile Usability.
Westerville, OH: McGraw-Hill Professional. (or most recent edition).
Toolbox and electronics circuit kit

G. REFERENCE MATERIALS

Nokia Service Manual Vol. 1 (www.huahongnet.com)
Mobile Phone Service Manual Vol. 2 (www.huahongnet.com)
Mobile Phone Repair Vol. 3(www.huahongnet.com)

H. INSTRUCTIONAL COST

None

I. EVALUATION

Student in telecommunication program must achieve a grade of "C" or better to pass the course.

J. CREDIT BY EXAMINATION

None

 

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