Electronics Assembly Technician

winetediousElectronics - Devices

Oct 7, 2013 (4 years and 1 month ago)

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DRAFT
FORMAT FOR SKILL DEVELOPMENT CURRICULUM

(Proposed by NITTTR, Chennai)


1.

Sector


:

IT Hardware and Electronics

(
Electronics)


2.

Name and Code No. of the Trade

/

:

Electronics Assembly Technician


3.

Level

:

(I/ II/ III/ IV)


Level I


4.

Duratio
n in hours

:

480

Hrs


5.

Entry Qualification/ Eligibility for
admission

:


10
th

Standard



6.

Employment opportunities

:

Waged / Self

(Bulleted list
of opportunities
to be given)



Control and Instrumentation



Automation Products



Consumer Electronics



PCB
Assembly


7.

Job / trade

Profile



:

(Bulleted list)



Carryout
Soldering



Assemble Instrument or product




Test the components and circuits



Electronics Assembly section



8.

Modules of Study and Time
allocation

:




Module
No.


Title of the Module

Time (
in Hours)


Theory

Practical

Total

1

Basic Electrical Theory

and Electrical Passive
Components

40

40

80


2

Soldering and Desoldering

10

30

40


3

Electronic components, devices

and

circuits



40

40

80


4

Digital Electronics

2
0

2
0

40


5

Drawing
Elec
tronic Circuit Schematics

10

30

40


6

Mechanical assembly


20

60

80

7

Testing and trouble shooting

10

30

40

8

Revision and End Examinations

20

60

80

9

Total

170

310

480















9.

Content details
of

each module

(As per the format enclosed i
n
Appendix


I

:


10.

Guidelines

for assessment and
certificat
ion

:

Trade Test


1. Theory


2 Hrs Test

2. Practical


4 Hrs Test


Including Viva


11.

Resource requirements





:







Infrasturcture:


One Class room to accommodate a batch of 40 st
udents.

One Lab to carryout the practical sessions given in the modules

3 skilled staff members for a batch of 40 students


Equipment:


1. Charts on atomic structure, galvanometer, dynamo, Motor,


2a. DC Voltmeters, DC Ammeters of different ranges

2b. R
esistances (1/2 W)
-

Assorted values, Rheostats

2c. Regulated DC Power Supplies 0
-
30V, 2A


3. Small step down transformers, coils, magnets, relays


4a. Portable AC Voltmeters, AC Ammeters, Neon Line Testers, Multimeters

4b. 5A SPST switch, Lamp Holde
rs, 5A, 2 pin, 3 pin, multipin Sockets, 2 pin and 3 pin plugs, Lamps,


Plastic wires, Insulation tapes, PVC Switch Boxes

4c. Cutting Plier, Nose Plier, Wire Sleever, Wire Cutter, Screw Driver, Hand drill


5a. Charts on generation of electricity,
First aid procedure for Electrical Shock,

5b. First aid box


1a. Carbon resistance, Metal film resistance, chip resistance, variable potentiometer, wire wound
potentiometer, wire wound high wattage resistances, Rheostat, Heater element

1b. Regulated Powe
r Supplies, Voltmeter, Ammeter and Multimeters


2a. Step down transformer, Center tapped transformer, Auto transformer, variac, inductor coil,

2b. LCR Meter, relays


3. Ceramic capacitance, Polyster capacitance, Tantalum capacitance, chip capacitance,


4
,5. Oscilloscopes, Power Supplies, Function Generators, Multimeters, DC Voltmeters, DC Ammeters,
AC Voltmeters and AC Ammeters






1. Soldering iron, Soldering iron stand, Flux, Solder, Magnifying Lens, Groove Boards, PCBs to solder IC
socket and compone
nts


2. Components to solder the above circuits


3. Temperature controlled soldering iron, De soldering tools


braid


wick remover, vacuum pump, De
soldering station


1. DC Regulated Power Supplies, Multimeters, Desk top DC Voltmeters and Ammeters, Sig
nal generator,
Oscilloscope, Components


1. DC Regulated Power Supplies, Multimeters, Desk top DC Voltmeters and Ammeters, Signal
generator, Oscilloscope, Components


1. 5V, +12V,
-
12V Power Supplies, IC Trainers, Pulse Generators, Oscilloscopes, Multime
ters


1. Computer Systems and ORCAD evaluation software


1. Bench type drilling machine, Hand drilling machine

2. Small forming tools for sheet metal work

3. Different types of files, vice

4. Screw drivers, Nose Pliers, Cutting pliers and necessary t
ools


1. Sleeve remover, Crimping tools, Nose Pliers, Screw drivers, Cutting pliers and other necessary tools


Annexure:


List of
experts

of the Curriculum Committee


1. Mr. Alagappan,


Vasee Electronics,


Valasaravakkam, Chennai


2. Mr. Swami
nathan,


Vikasha Electronics,


Guindy Electronics Industrial Estate, Chennai


3. Mr. Sambandam,


Solo Automation,


Ashok Nagar, Chennai


4. Dr. R.Theagarajan,


Prof. and Head of EMC,


NITTTR, Chennai


5. Dr.S.Dhanasekaran,


Prof. and Head of Electrical and Electronics,


NITTTR, Chennai








Module No. 1


1. Title of the Module
:


Electrical Basic Theory


2. Module Competencies

At the end of the module the trainee will be able to do the following

1.
Connect a circu
it using Battery and Lamp

2. Test AC Mains Voltage

3
.
Connect a
small 12
DC Motor and run

4.
W
iring for
2
lamps and switches


3. Knowledge Components

1.
Atomic structure, Components of atom, their charges, current

2. Battery,
DC
Voltage, Current

and

Resistance and Ohms law
, Energy and Power

3
.
AC Mains Voltage, waveform, Frequency,
Effective voltage,
Phase and Neutral
, Current in the circuit

4
.
AC Dynamo, DC Voltage generation, DC Motor Principles

5
.
Generation of Electricity, Substation, Distribu
tion and Domestic Electricity supply


4. Practical Skills

1.
Draw the components of atom di
a
gram

2a.
Ex
periment to verify Ohms Law


2b
.
Using Voltmeter, Ammeter and Multimeter

2
c
.
Find the resistance values

3a
.

Make a coil and check the magnetism

3b.

Wiring a relay and test the operation

4a. Draw the ac waveform and note the peak and rms values, period and frequency

4b. Measuring domestic mains voltage using Neon Tester and AC Voltmeter

4c.
Wiring
S
witch and lamp
circuit
in 230V AC Mains

and testin
g

5a.


Draw the diagram of Distribution transformer

5b. Demonstrate the first aid to be given for Electric shock affected person


5. Instructional Hours

-

40 Hrs

a) Theory


-

20

Hrs

b) Practical


-

2
0 Hrs


6. Guidelines for Assessment

1.
Draw the co
mponents of atom

2. Experiment on Ohms law

3. Draw the ac waveform and note the rms, peak values, period and frequency

4. Wiring Switch and lamp circuit in 230V AC Mains and testing



7. Reference Materials

1.

Electric circuit Analysis by A. Sudhakar and

Shyammohan S. Palli

2.

Electrical Technology Volume


I by B.L.Thereja

3.

Basic Electrical, Electronics and Computer Engineering By MuthuSubramanian, R.Salivahaan,
and K.A Muraleedharan


Resource Requirements

1. Charts on atomic structure, galvanometer, dynam
o
, Motor,


2
a. DC Voltmeters, DC Ammeters of different ranges

2
b. Resistances (1/2 W)
-

Assorted values, Rheostats

2
c. Regulated DC Power Supplies 0
-
30V, 2A


3. Small step down transformers, coils, magnets, relays


4
a. Portable AC Voltmeters, AC Amme
ters, Neon Line Testers, Multimeters

4b
. 5A SPST switch
,

Lamp Holders
,

5A, 2 pin, 3 pin, multipin Sockets, 2 pin and 3 pin plugs,
Lamps,


Plastic wires, Insulation tapes, PVC Switch Boxes

4c. Cutting Plier, Nose Plier, Wire Sleever, Wire Cutter,

Screw Driver, Hand drill


5
a
. Charts on generation of electricity, First aid procedure for Electrical Shock
,

5b. First aid box



Module No. 2


1. Title of the Module
:


Electric Passive Components


2. Module Competencies

At the end of the module the
trainee will be able to do the following

1.

Select suitable resistance for a specific work

2.
Use transformer or coil for a specific
work

3.
Study the use of Resistance, inductance and Capacitances in DC and AC Circuits


3. Knowledge Components

1.
Res
istances


different types and uses

2. Coil and Transformer


different types and uses

3.
Capacitance


different types and uses

4.
R, L and C in DC Circuits
, Time constant

5.
R, L and C in AC Circuits
, Resonance


4. Practical Skills

1
a
.

Reading c
olour code of resistance and verifying the values with multimeter

1b. Use Potentiometer as variable resistor

2
a
.

Study the construction of transformers and coils

2b. Measurement of inductance values and voltages in transformer

and energy stored

3a
.

Study of different types of capacitances and uses

3b. Measurement of values of capacitance and energy stored

4a
.

Applying DC voltage to R, RL, and RC circuits and study the response

4b. Measuring the response using Oscilloscope

and meters

5a. Ap
plying AC voltage (low voltage and different frequencies) to R
, RL, RC and RLC

5b. Measuring the response using Oscilloscope and meters


5. Instructional Hours

-

40 Hrs

a) Theory


-

2
0 Hrs

b) Practical


-

2
0 Hrs


6. Guidelines for Assessment

1.
Co
nstruct voltage divider using resistances


2.
See the resonance condition for R L C Circuit in AC



7. Reference Materials

1.

Electric circuit Analysis by A. Sudhakar and Shyammohan S. Palli

2.

Electrical Technology Volume


I by B.L.Thereja

3.

Basic Electrical,

Electronics and Computer Engineering By MuthuSubramanian, R.Salivahaan,
and K.A Muraleedharan

Resource Requirements

1a. Carbon resistance, Metal film resistance, chip resistance, variable potentiometer, wire wound
potentiometer, wire wound high wattage r
esistances, Rheostat, Heater element

1b. Regulated Power Supplies, Voltmeter, Ammeter and Multimeters


2a. Step down transformer, Center tapped transformer,
Auto transformer, variac, inductor coil,

2b. LCR Meter, relays


3. Ceramic capacitance, Polyster c
apacitance, Tantalum capacitance, chip capacitance,


4
,5
. Oscilloscopes, Power Supplies,
Function Generators, Multimeters, DC Voltmeters, DC Ammeters,
AC Voltmeters and AC Ammeters










Module No. 3


1. Title of the Module
:


Soldering Techniques


2.

Module Competencies

At the end of the module the trainee will be able to

1.

Do soldering properly

2.
Use De soldering tools

3.
Know the reasons for bad solder joints



3. Knowledge Components

1.
Solder safety
, Causes of solder fumes and effects of

lead poisioning

2.
Causes and precaution to prevent or reduce solder splatter

3.
Reasons for flux usage and different types
, Lead free solder

4. Types of solder and choosing each, Heat shunts, cold solder joints and causes

5. Difference between good a
nd bad mechanical and electrical solder connection

6. Desoldering principles

7. Use of braid


wick solder remover

8. Various types of solder and desolder equipment

9. static causes and CMOS damage prevention straps, mats and grounding

10. Eye and Ear

protection needed by technician


4. Practical Skills

1.
Study of solder and de solder equipment

2.
Solder the following circuits in groove board


a)
5V Power Supply circuit using rectifier and
5V regulator IC


b) Transistor amplifier


c) Cl
ock circuit using transistor

3. Solder the following circuits in the PCB


a) IC 555 based astable multivibrator circuit with LED output


b) Counter circuit using IC 7474

4. Desolder the components from the PCB

using braid


wick solder remover and
vacuum pump

5. Use CMOS damage prevention straps, mats and grounding


Note: The Supervisor of the course should monitor the quality of soldering


5. Instructional Hours

-

40 Hrs

a) Theory


-

10

Hrs

b) Practical


-

3
0 Hrs


6. Guidelines for Assessm
ent

1.
Soldering a circuit in groove board

2.
Soldering a circuit in PCB

3. De solder the circuit in PCB


7. Reference Materials


1. Printed Circuit boards, Design, Fabrication, Assembly and Testing by R.S.Khandpur (2005), Tata Mc


Graw Hill


Resource Requirements

1.
Soldering iron, Soldering iron stand, Flux, Solder, Magnifying Lens, Groove Boards, PCBs to solder IC
socket and components


2. Components to solder the above circuits


3. Temperature controlled soldering iron, De soldering tool
s


braid


wick remover, vacuum pump, De
soldering station

Module No. 4


1. Title of the Module


:
Electronic devices and circuits


1



2. Module Competencies

At the end of the module the trainee will be able to

1.
Know PN junction, forward biasin
g and reverse biasing

2.
To wire DC 6V Power supply

3.
Assemble transistor amplifier circuit

4. Test LED and seven segment display


3. Knowledge Components

1.
Conductor, Insulator and Semi conductor

2.
PN Junction diode Forward and reverse characteri
stics

3.
Transistor working principle

4.
Common Emitter Transistor amplifier

5.
LED, Photo diode, Photo transistor, LDR and Seven Segment display


4. Practical Skills

1.
PN junction diode
forward and reverse bias characteristics


2.
Half wave rectifi
er, Full wave rectifier and Bridge rectifier circuits, Filter circuits

3.
Transistor biasing circuits


Operating point

4.
Common Emitter Transistor amplifier


frequency response


5.
Testing of LED, LED circuit, Seven segment display


5. Instructiona
l Hours

-

40 Hrs

a) Theory


-

2
0 Hrs

b) Practical


-

2
0 Hrs


6. Guidelines for Assessment

1.
Draw full wave rectifier with filter circuit

2.
Testing of Transistor amplifier circuit

3.
Transistor as switch



7. Reference Materials


1.

Basic Electrica
l, Electronics and Computer Engineering By MuthuSubramanian, R.Salivahaan,

and K.A Muraleedharan


2. Applied Electronics by R.S. Sedha



8. Resource Requirements


1.
DC Regulated Power Supplies,
Multimeters, Desk top DC Voltmeters and Ammeters,
Signal generator,
Oscilloscope, Components

Module No.
5


1. Title of the Module


:
Electronic devices and circuits


2



2. Module Competencies

At the end of the module the trainee will be able to

1. Use Zener diode as regulator and
J
FET as high inp
ut impedance amplifier

2. Test SCR as controlled rectifier

3. Assemble
Switching circuits using MOSFET and IGBT

4.
Assemble DIAC and TRIAC based Light Dimmer

5. Construct and test OP
-
AMP amplifier circuit

6. Use IC 555 for clock circuit


3. Knowledg
e Components

1.
P
in

d
etails of Zener diode

and characteristics

2.
Pin details of JFET and its characteristics

3.
Pin details of SCR, MOSFET, IGBT and its characteristics

4.
Pin details of DIAC, TRIAC and its characteristics

5.
Pin details of IC 555,
O
P
-
AMP and IC 7805, IC 7905, IC LM 317


4. Practical Skills

1.
Testing of Zener diode, JFET, SCR, MOSFET, IGBT, DIAC and TRIAC


2.
Zener diode voltage regulator, FET amplifier

3.
SCR based controlled rectifier, MOSFET and IGBT based Switches

4.
DIAC an
d TRIAC based Light Dimmer, OP
-
AMP Summing and Inverting amplifier


5.
IC 555 based Astable, Monostable circuits



Note: All these circuits should be soldered and tested


5. Instructional Hours

-

40 Hrs

a) Theory


-

20 Hrs

b) Practical


-

20 Hrs


6
. Guidelines for Assessment

1.
SCR as controlled rectifier

2.
Zener based variable voltage regulator

3.
Op
-
amp based inverting amplifier



7. Reference Materials

1.

Basic Electrical, Electronics and Computer Engineering By MuthuSubramanian, R.Salivahaan,


and K.A Muraleedharan


2. Applied Electronics by R.S. Sedha



8. Resource Requirements


1.
DC Regulated Power Supplies, Multimeters, Desk top DC Voltmeters and Ammeters, Signal
generator, Oscilloscope, Components



















Module No.
6


1. Title of the Module
:


:
Digital Electronics



2. Module Competencies

At the end of the module the trainee will be able to

1.
know binary number system, bcd and hex number system

2.
Verify the truth table of Logic gates

3.
Test adder circuits, D
ecoder and Multiplexer circuits

4. Construct counter using flip flops

5. Test the shift register operation


3. Knowledge Components

1.
Binary, BCD, HEX number system and ASCII Codes

2
.
Truth table of OR, AND, NOT, NOR, NAND and Ex
-
OR gates

3
.
Half ad
der, Full adder, Decoder, Encoder, Multiplexer, Demultiplexer, Seven Segment Decoder


4
.
RS, JK flip flops, Clear and Preset inputs, Counter using flip flops

5. Shift register using flip flops


4
. Practical Skills

1.
Conversion from binary to bcd, binar
y to hex and ASCII codes for English alphabets

2. Wiring and verifying the truth table of basic logic gates

3
.
Verifying the truth table of half adder, full adder, decoder, encoder, multiplexer and demultiplexer


4
.
Constructing one digit seven segment

display

5
.
Verifying truth tables of flip flops, constructing and testing of 4 bit ripple counter using flip flops

6
.
Constructing 4 bit shift register using flip flops and testing the operation


5. Instructional Hours

-

40 Hrs

a) Theory


-

2
0 Hrs

b
) Practical


-

2
0 Hrs


6. Guidelines for Assessment

1.
Wiring 4 bit counter

2.
Testing 4 bit shift register

3.
Wiring full adder


7. Reference Materials

Digital Design by M. Morris Mano

2. Digital fundamentals by Floyd

3. IC manuals


8. Resou
rce Requirements


1.
5V, +12V,
-
12V Power Supplies,

IC Trainers, Pulse Generators, Oscilloscopes, Multimeters





Module No.
7


1. Title of the Module
:


Drawing Electronic Circuit Schematics


2. Module Competencies

At the end of the module the trainee
will be able to do the following

1.
Draw simple analog circuits, digital circuits

2
.
Use Library of components

3. Prepare net list of schematic

4. Generate bill of materials

5. Simulation of simple circuits


3. Knowledge Components

1
a
.
Starting a n
ew schematic project

1b.

Placing parts and making connections

2a. Copying work, Assigning Inter sheet reference,

2b
.
Connecting pages, connecting inter sheet signal reference

3a
.
Design rule checking and creating netlist

3b
.
Circuit schematic using
Microprocessor and buses

4
a
. Design rule check and Creating netlist

4b
. Generating bill of materials

5. Simulation of simple circuits



4. Practical Skills

1.
3 nos. of transistor based drawing

2. 3 nos. of digital electronics drawing

3. 3 nos. of M
icroprocessor based drawing

4. Creating net

list and DC rule checking

5. Simulation of drawn circuits


5. Instructional Hours

-

40 Hrs

a) Theory


-

10 Hrs

b) Practical


-

30 Hrs


6. Guidelines for Assessment

1.
Drawing a transistor based circuit

2.
Drawing a digital electronics circuit

3.
Simulating simple circuit


7. Reference Materials

1.
ORCAD Tutorial on Capture and simulation


Resource Requirements


1. Computer Systems and ORCAD evaluation software




















Module No.
8



1.
Title of the Module


:
Mechanical Assembly



1


2. Module Competencies

At the end of the module the trainee will be able to

1.
Use drilling machines

2.
Do filing work for smoothening

3. Fix the mechanical components in PCB

4
Assemble Heavy compon
ents like transformer, Power supply circuits in the cabinet


3. Knowledge Components

1.
Working with drilling machines

2. Simple sheet metal work like cutting, bending and shaping

3. Metal filing work

4
.
Different types of
Switches, Terminals, Rotary

Switches,
PCB mountable switches and Rotary


Switches,
Termination strips, Relays

5
. Fixing the sub assemblies in an Instrument cabinet




4. Practical Skills

1.
Drilling practice in cabinets and PCBs to fix the switches, lamps, terminals


2.
Sh
eet metal work practice in cutting, bending and shaping necessary for cabinet and accessories

3.
Filing practice for the sheet metal work

4.
Fixing mechanical components in cabinet and PCBs

5.
Fixing sub assemblies in the cabinet


5. Instructional Hou
rs

-

40

Hrs

a) Theory


-

10

Hrs

b) Practical


-

30

Hrs


6. Guidelines for Assessment

1.
Fixing Rotary switch in a PCB

2.
Prepare accessory for placing LCD display in a PCB


7. Reference Materials

1. Printed Circuit boards, Design, Fabrication, As
sembly and Testing by R.S.Khandpur (2005), Tata Mc


Graw Hill



8.
Resource Requirements

1.
Bench type drilling machine, Hand drilling machine

2. Small forming tools for sheet metal work

3. Different types of files
, vice


4. Screw drivers, Nose
Pliers, Cutting pliers and necessary tools













Module No.
9



1. Title of the Module


:
Mechanical Assembly


2


2. Module Competencies

At the end of the module the trainee will be able to

1. Do cable harness for a specific work

2. Disassemb
le and assemble equipment

3.
Assemble Heat Sinks with devices

4. Inspect the PCB for track cut


3. Knowledge Components

1. Different types of connectors, Mechanical guides for PCBs

2. Cable harness

3. Procedure to disassemble and assemble any equipm
ent

4.
Different types of Heat sinks and fixing arrangement

5.
PCB Inspection




4. Practical Skills

1.
Fixing different types of connectors in PCBs and cabinet

2.
Preparing different types of cable harness and end termination

3.
Disassembling and
assembling Electronic equipment

4. Mounting Heat sink on devices

5.
PCB physical inspection


5. Instructional Hours

-

40

Hrs

a) Theory


-

10

Hrs

b) Practical


-

30

Hrs


6. Guidelines for Assessment

1.
Crimp 26 pin connector cable

2.
Inspect a c
rack in the track in the PCB


7. Reference Materials


1. Printed Circuit boards, Design, Fabrication, Assembly and Testing by R.S.Khandpur (2005), Tata Mc


Graw Hill


8.
Resource Requirements


1. Sleeve remover, Crimping tools, Nose Plier, Screw
drivers, Cutting pliers and other necessary tools























Module No. 10


1. Title of the Module



:
Testi
ng and Trouble shooting


2. Module Competencies

At the end of the module the trainee will be able to

1.
Use Multimeter for differen
t measurements

2.
Use Oscilloscope to measure the waveforms

3.
Test simple circuits

4. Find and rectify simple faults


3. Knowledge Components

1.
Testing of Switches, Rotary Switches, Relays, Wires, Mains cables, Fuses, Connectors


2.
Testing of
different types of Resistances, Capacitances and Coils

3.
Testing of Diodes, Transistors and SCRs


4.
Study and test 0
-
30V Power Supply Circuits

5.
Study and test
Public Address Amplifier Circuits


4. Practical Skills

1. Study

the circuit diagram of d
ifferent types of power supply circuits

2. Study the circuit diagram of function generator

3. Test the power supply circuit and note the voltage at different points

4. Test the PA System circuit and note the voltage at different points

5. a) Similarl
y take 2 other equipment.


b) Study the circuit diagram


c) Test the circuit and note the voltage at different points

6. Troubleshoot the faulty Power supply, PA system



5. Instructional Hours

-

40 Hrs

a) Theory


-

10 Hrs

b) Practical


-

30 Hrs


6. Guidelines for Assessment

1.
Troubleshoot a faulty power supply

2.
Test the circuit of Battery Charger


7. Reference Materials









8. Resource Requirements


1. 0
-
30V Power Supplies, PA Systems, Other Electronic equipment with ci
rcuit diagram