ELECTRONICS CBLM

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Sector :

Industrial Arts

Qualification Title :

Electronics Products Assembly

and Surviving NCII (EPAS NCII)

Unit of Competency :

Maintain And Repair Electronically-

Controlled Domestic Appliances

Module Title :

Maintain And Repair Electronically-

Controlled Domestic Appliances

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Cavite Economic Zone

.

DTS Program

Be a world class employee through DUAL Training Systems

Trainers Methodology

By: Developer SJBFTC. Inc.

September 17, 2015,

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Module 1

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Electronic Products Assembly Assemble and

Servicing NC-II Date Developed: September 17,2015 Document No. Issued by: SJBFTC _{Page 1} Developed by: Bosconian Trainers Revision # 02

Data Gathering Instrument for Trainee’s Characteristics

Please answer the following instrument according to the characteristics

described below. Encircle the letter of your choice that best describes you

as a learner. Blank spaces are provided for some data that need your

response.

Characteristics of learners

Language,

literacy and

numeracy (LL&N)

Average grade in:

English

a. 95 and above

b. 90 to 94

c. 85 to 89

d. 80 to 84

a. 75 to 79

Average grade in:

Math

a. 95 and above

b. 90 to 94

c. 85 to 89

d. 80 to 84

e. 75 to 79

Cultural and

language

background

Ethnicity/culture:

a. Ifugao

b. Igorot

c. Ibanag

d. Gaddang

e. Muslim

f. Ibaloy

g. Others( please specify)_____________

Education &

general

knowledge

Highest Educational Attainment:

a. High School Level

b. High School Graduate

c. College Level

d. College Graduate

e. with units in Master’s degree

f. Masteral Graduate

g. With units in Doctoral Level

h. Doctoral Graduate

(5)

Characteristics of learners

b. Female

Age

Your age: _____

Physical ability

1. Disabilities(if any)_____________________

2. Existing Health Conditions (Existing illness if

any)

a. None

b. Asthma

c. Heart disease

d. Anemia

e. Hypertension

f. Diabetes

g. Others(please specify) ___________________

experience with

the topic

Basic Electronics and Electricity

a. Seminar

b. Previous/Current Work

c. Special Training

d. Research

Number of years as a competency trainer ______

Previous learning

experience

List down trainings related to EPAS

___________________________

Training Level

completed

NC 2 EPAS level

___________________________

Special courses

Other courses related to EPAS

a. Units in education

b. Master’s degree units in education

c. Others(please specify)

_________________________

Learning styles

a. Visual - The visual learner takes mental

pictures of information given, so in order for

this kind of learner to retain information, oral

or written, presentations of new information

must contain diagrams and drawings,

preferably in color. The visual learner can't

concentrate with a lot of activity around him

and will focus better and learn faster in a

quiet study environment.

(6)

Characteristics of learners

classroom, who have problems sitting still and

who often bounce their legs while tapping

their fingers on the desks. They are often

referred to as hyperactive students with

concentration issues.

c. Auditory- a learner who has the ability to

remember speeches and lectures in detail

but has a hard time with written text. Having

to read long texts is pointless and will not be

retained by the auditory learner unless it is

read aloud.

d. Activist - Learns by having a go

e. Reflector - Learns most from activities where

they can watch, listen and then review what

has happened.

f. Theorist - Learns most when ideas are linked

to existing theories and concepts.

g. Pragmatist - Learns most from learning

activities that are directly relevant to their

situation.

Other needs

a. Financially challenged

b. Working student

c. Solo parent

d. Others(please specify)

___________________________

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 4} Developed by: Bosconian Trainers Revision # 02

TOPIC TO BE DISCUSS IN EPAS

1. POWER SUPPLY:

* Familiarization of all the components oand its terminals

* know the positive and negative terminals

* testing the voltages, resistance and current

* knowledge of how to trace the current

* knowledge in interpretation of the circuit

* actual pcb design

* general check up and testing and trouble shooting

* final exam

2. SENSOR ( light and sound )

* familiarization of all the components and functions of the sensor circuits\

* know the positive and negative terminals

* testing the voltages, resistance, and current

* knowledge of how to trace the current

* knowledge in interpretation of the circuit

* actual pcb design

* general check up and testing and trouble shooting

* final exam

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* familiarization of the parts of the appliances and functions

* disassembly and assembly

* reading and interpreting the diagram

* general check up, testing and trouble shooting

* final exam

4. CLOSED-CIRCUIT TELEVESION (CCTV)

* brief history

* familiarization of all the parts and module of CCTV and functions

* familiarization of all the terminals of the CCTV

* study the exact connection of all the part of CCTV

* knowledge in interpretation jof the circuit diagram

* general check up, testing and troubleshooting

* final exam

(9)

MODULE CONTENT

UNIT OF COMPETENCY: Power supply and other electronics circuit

MODULE TITLE

: Power supply and other electronics circuit

MODULE DESCRIPTOR:

This unit covers the knowledge, skills and attitudes

required to Power supply and other electronics circuit. Including diagnosing faults,

reassembling, testing and preparing reports

.

LEARNING OUTCOMES:

At the end of this module you MUST be able to:

1. Prepare unit, tools, equipment and workplace for maintenance/repair.

2. Diagnose faults of electronically-controlled domestic appliances in Focus with

Power Supply.

3. Maintain/Repair Power Supply.

4. Reassemble and test repaired Power supply and other electronics circuit.

ASSESSMENT CRITERIA: 1.1 circuit analyzation

1.1-1 familiarization of all the components and its terminals 1.1-2 know the positive and negative terminals

1.1-3 study the functions of every component

1.1-4 tester reading (VOM) and study how to read the voltage, resistance and current 1.1-5 actual resistance reading of every component

1.1-6 PCB design and assembling of the power supply 1.1-7 knowledge in how to trace the current in the circuit 1.1-8 actual testing the voltages and current

1.1-9 knowledge in how to interpret the circuit and analyze 1.2-0 general check -up and testing and trouble shooting 1.2-1 final exam

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LEARNING OUTCOME NO 1. 1

Supply and other electronics circuit

To discuss about

Prepare unit, tools, equipment and workplace for

maintenance/repair for Electronically Controlled Domestic appliances. One of

Example is power supply,

Conditions

The participants will have access to:

Tools

Equipment

Materials/ Supplies



Step-down

transformer



Soldering iron/gun



Screwdriver

(assorted)



Nut drivers

(assorted)



Wrenches

(assorted)



Allen wrench/key



Multi-testers

(analog/digital)



Utility knife



Wire stripper



Pliers (assorted)



Work bench



Flashlight



Test light



Cleaning brush



Ball peen

hammer



Soldering lead



Wires, various

sizes



Assorted

electronic

components



Cleaning brush lead

free solder



Resistors (different

values)



Capacitors (different

values)



Transformer



Books and

References



Technical manuals



Documentation

forms



Report forms



LCD presention

(11)

Methodologies



Demonstration



Discussion



LCD presention

Assessment Method:



Interview (oral/ questionnaire)



Observation



Demonstration of Practical Skills

(12)

Learning Experiences

Learning Outcome 1.0

Prepare unit, tools, equipment and workplace for maintenance/repair

Learning Activities

Special Instructions

Read Information Sheet No. 1.1 on

Identifying and performing different

Prepare unit, tools, equipment and

workplace for maintenance/repair

Answer Self Check 1.1

Compare answer to Answer key no. 1.1

Job Sheet No. 1.1 Selecting and Setting

(13)

Information Sheet NO 1. 0

Power supply and other electronics circuit

Learning Objectives: Identify and perform different Power

supply and other electronics circuit,

unit, tools, equipment and workplace for maintenance/repair

After reading this INFORMATION SHEET, YOU MUST be able to:

1. Define power supply.

2. Name the main components in a common linear AC to DC power supply

and explain the purpose and function of each.

3. Define rectifier and name two common types.

4. Name the component that transforms pulsating DC into constant DC.

5. Define ripple and identify its origins.

Definition and terms

A power supply is a device that supplies electric power to an electrical

load. The term is most commonly applied to electric power converters that

convert one form of electrical energy to another, though it may also refer to

devices that convert another form of energy to electrical energy. ...

Accidental - occurring unexpectedly, unintentionally, or by chance.

Alternating current - an electric current that is continually

varying in value and reversing its direction of flow at regular

interval

Anode - a positive electrode of semiconductor device

Capacitance - a property that exists whenever two

conductors are separated by insulating material, permitting

the storage of electricity

Capacitor - a component designed intentionally to

have a definite amount of capacitance

Circuit - an arrangement of one or more complete paths of electron flow.

Conductor - a wire, cable, or other body or medium that is

suitable for carrying electric current

Current - the rate of transfer of electricity from one point to another

De-soldering - a process of unsoldering unwanted parts or

components in the circuit with the support of a soldering tool

Dielectric material - a material that serves as insulator

because it has poor electric conductivity

Direct current - an electric current that

flows

in

one

direction

Discrete

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components

Electronics - a branch of science and technology that deals

with the controlled flow of electrons

Flammable - tending to burn quickly

Hazards - risks; dangers

Malfunction - not in normal operating condition

Ohmmeter - an instrument that measures the amount of

resistance in certain component or circuits

Resistance - the opposition that a component or material offers to the flow

current

Resistor - a component designed intentionally to have a

definite amount of resistance

Soldering - a process of joining two metals caused by heat

Soldering technique - a strategy in which the solder (lead)

is being applied in a connection or in the printed circuit

board

Splicing - connecting two lengths of conductor

Technician - a person skilled in mechanical or industrial

techniques or in a particular technical field

Tool kit - a small bag or box equipped with hand tools

Troubleshooting - identifying and repairing faults in equipment

Voltage - the electrical pressure that exist between two points and capable

of

Producing a flow of current when a close circuit is connected

between the points.

Voltmeter - an instrument that measures the amount of

electromotive force in a component or circuit.

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Acronyms



A (amp) - Ampere



AC - Alternating current



AC/DC - Alternating current or Direct current



A/D - Analog to digital



ADC - Analog-to-digital converter



AF - Audio frequency



AFT - Automatic fine tuning



AFC - Automatic frequency control



AFC - Automatic flow controller, used in controlling the flow of gasses under

pressure into a vacuum system



AGC - Automatic gain control



Ah - Ampere hour



Ai - Current gain



AM - Amplitude modulation



AM/FM - Amplitude modulation or Frequency modulation



AMM - Analog multimeter



antilog - Antilogarithm



Ap - Power gain



apc - Automatic phase control



Av - Voltage gain



AVC - Automatic volume control



AWG - American wire gauge



PCB - Printed Circuit Board



PPE - Personal Protective Equipment



VOM - Volt-Ohm-Milliameter

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Lesson proper

Power Supply

• All electronic circuits need a power source to work.

• For electronic circuits made up of transistors and/or ICs, this power source

must be a DC voltage of a specific value.

Power Supply Characteristics

• The input is the 120 volt 60 Hz AC power line. Alternately, the input may be

240 volt AC.

• The power supply converts the AC into DC and provides one or more DC

output voltages.

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Power Supply

• The AC line is first passed through a low pass filter of the form shown in figure.

Transformer

A transformer is commonly used to step the input AC voltage level down or up.

Rectifier



The rectifier converts the AC sine wave into a pulsating DC wave.

Regulator

• The regulator is a circuit that helps maintain a fixed or constant output

voltage.

DC-DC Converter

(18)

How Rectifiers Work

• The simplest form of rectifier is the half wave rectifier shown.

• Only the transformer, rectifier diode, and load (R

L

) are shown without the

filter and other components.

Bridge Rectifier

• Another widely used rectifier is the bridge rectifier. It uses four diodes.

• This is called a full wave rectifier as it produces an output pulse for each half

cycle of the input sine wave.

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How the Filter Works

• A large capacitor is connected across the load resistor. This capacitor filters

the pulses into a more constant DC.

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Full-Wave Rectifier

Ripple

• The capacitor does a good job of smoothing the pulses from the rectifier

into a more constant DC.

The Regulator

• Most regulators are ICs .

• These are feedback control circuits that actually monitor the output voltage

to detect variations.

(21)

JOB SHEET no.1.2.1

Title:

Power supply and other electronics circuit and

Prepare unit, tools,

equipment and workplace for maintenance/repair

Performance Objective: Given an instruction, you should be able to

Prepare unit, tools, equipment and workplace for

maintenance/repair

Supplies/Materials :basic electronics tools , paper and bullpen

Equipment

: power supply. Basic tools and component.

Steps/Procedure:

a. Introduce yourself as a Consumer Electronics Technician

b. Explain the parts of power supply

c. Give information about power supply

d. Evaluate your performance on the topic

e. Answer assignment for next topic.

f. Applying 5 S before leaving in the classroom.

Assessment Method:

Observation

Demonstration of Practical Skills

Written examination

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Self- Check no.1. 3.1

I. Test TRUE OR FALSE.

TRUE or FALSE. Read the statements carefully. Write True if the sentence is correct

and False if it is incorrect.

1. Power supply is a device that can produce resistance?

2. Its power supply converts A.C to D.C?

3. Example of power supply is cellphone charger?

4. Alternate current is the mean source of power supply?

5. D.C power supply means Direct current?

II. Question and Answer.

1. Ten lamps are connected in series across a power supply. The voltage across each lamp is 6.0 V. What is the voltage of the supply?

2. Ten lamps are connected in parallel across a 12 V supply. What is the voltage across each lamp?

3. The ammeter below reads 1.0 A. All the resistors have the same value. What is the current through the black resistor?

4. Look at the circuit below and answer the questions that follow: A

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Ammeter A5 reads 3 A. All the resistors have the same value of 10 Ω. What are the

readings on ammeters A1 to A8 and what is the terminal voltage of the battery?

5.

The voltmeter across R reads 24 V

(a) What is the voltage across the upper 10 Ω resistor? (b) What is the current through the upper 10 Ω resistor?

(c) What is the voltage across the lower part of the parallel circuit? (d) What is the reading on ammeter A2?

(e) What are the readings on ammeters A1 and A3?

(f) What is the value of R?

A5 A7 A1 A8 A6 A4 A3 A2 A1 A2 V 40V dc supply R 10 30 Ω Ω 10 A3

(24)

ANSWER KEY No1.3.2

1. False

2. True

3. True

4. True

5. True

Answers

1. 60 V 2. 12 V 3. 2 A 4. A1 = 11 A, A2=6 A, A3=2 A, A4=2 A, A5=3 A, A6=5 A, A7=11 A, A8=11 A 5(a) 16 V 5(b) 1.6 A 5(c) 16 V 5(d) 0.4 A 5(e) 2.0 A 5(f) 12 Ω

(25)

MODULE CONTENT

UNIT OF COMPETENCY:

Sensor controller (light and sound)

MODULE TITLE:

MODULE DESCRIPTOR: able to perform maintain/ repair appliances

Sensor controller

(light and sound).

EQUIPMENT

After reading this INFORMATION SHEET, YOU MUST be able to:

1. Able to know the maintain/ repair appliances.

2. Application of substitution technique.

3. Soldering/de soldering and wiring/cabling techniques.

4. Schematic diagram reading skills.

LEARNING OUTCOMES:

Sensor

controller (light

and sound)

ASSESSMENT CRITERIA:

3.1 industrial electronic module, products and system

3.1-1 familiarization of all the parts and components, functions of a sensor circuit 3.1-2 study the uses and applications of a sensor

3.1-3 know the positive and negative terminals 3.1-4 testing the voltages current and resistance

3.1-5 know how to trace the current from input to output 3.1-6 knowledge in interpreting the circuit of a sensor 3.1-7 actual PCB design of a Sensor

3.1-8 general check-up, testing and trouble shooting 3.1-9 final exam

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LEARNING OUTCOME NO 2. 0.

1. Service manual/schematic diagram/parts list.

2. Operating instructions/User/Owner’s manual.

3. Use and function of tools, equipment and testing instruments.

4. Applying 5 S

5. Define terms of Sensor controller (light and sound).

6. Diagnose faults of Sensor controller (light and sound).

Conditions: This Learning outcome covers the knowledge, skills and attitudes

required to

. Including diagnosing faults,

reassembling, testing and preparing reports

.

Methodologies



Modular (self-paced)



Demonstration



Discussion

Assessment Method:



Review



Lecture



Actual demonstration



Lecture and demonstration



Lecture and demonstration



Demonstration and observation



Written test

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Learning Experiences

Learning Outcome 2

Sensor controller (light and sound)

Learning Activities

Special Instructions

Read Information Sheet No. 2.0 of

troubleshooting technique

Actual design on PCB on light Sensors

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Information Sheet NO 2. 0

Sensor controller (light and sound)

Learning Objectives: able to perform Reassemble and test repaired appliance in

Domestic Home Appliances (Washing machine and TV receiver.

Definition and terms

Acceleration •Accelerometer Biosignals •Electrocardiogram (ECG) •Electroencephalogram (EEG) •Electromyography (EMG) •Electrooculography (EOG)

•Electro palato graphy (EPG)

•Galvanic Skin Response (GSR)

Distance •Capacitive •Hall Effect •Infrared •Ultrasound Flow •Ultrasound Force/pressure/strain/bend •Air Pressure

•Fibre Optic Sensors

•Flexion

•Force-sensitive Resistor (FSR) •Load Cell

•LuSense CPS² 155

•Miniature Pressure Transducer •Piezoelectric Ceramic & Film •Strain Gage

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 26} Developed by: Bosconian Trainers Revision # 02 •Hygrometer Linear position •Hall Effect

•Linear Position (Touch)

•Linear Potentiometer (Slider)

•Linear Variable Differential Transformer (LVDT) •LuSense CPS² 155 Orientation/inclination •Accelerometer •Inclinometer •Magnetometers Radio Frequency

•Radio Frequency Identification (RFID)

Rotary position •Rotary Encoder •Rotary Potentiometer Rotary velocity •Gyroscope Switches •On-Off Switch Temperature •Temperature Vibration •Piezoelectric Ceramic & Film

Visible light intensity •Fibre Optic Sensors

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Lesson proper 2

INTRODUCTION

• A light dependant resistor (LDR) or a photo resistor or photocell is a light

controlled variable resistor. Its resistance changes with the light intensity that

falls on it.

• They are made up of semiconductor materials having high resistance.

WORKING OF LDR

A LDR works on the principle of photoconductivity.

Photo conductivity is an optical phenomenon in which the materials

conductivity reduces when light is absorbed by the material.

CHARACTERISTICS OF LDR

LDRs are light dependent devices whose resistance decreases when light falls

on them and increases in the dark.

When a light dependent resistor is kept in dark, its resistance is very high. This

resistance is called as dark resistance.

CONSTRUCTION OF LDR

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Modern light dependent resistors are made of lead sulphide, lead selenide, indium antimonide and most commonly cadmium sulphide (CdS) and cadmium selenide.

ADVANTAGES:

LDRs are cheap and are readily available in many sizes and shapes.

DISADVANTAGES:

Highly inaccurate with a response time of about tens or hundreds of milliseconds.

Light sensor: The LED lights up when the intensity of the light reaching the LDR resistor is sufficient.

Example is Automatic Emergency Light: It senses darkness/night and turns ON automatically. Similarly it senses day light and turns OFF automatically. Series of LEDs are connected.

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2. Audio Compressor: Audio compressors are devices which reduce the gain of the audio amplifier when the amplitude of the signal is above a set value. This is done to amplify soft sounds while preventing the loud sounds from clipping. Some compressors use an LDR and a small lamp (LED) connected to the signal source to create changes in signal gain.

3. Fire Alarm: The alarm works by sensing the smoke produced during fire. When there is no smoke the light from the bulb will be directly falling on the LDR. The LDR resistance will be low and so the voltage across it (below 0.7 V). The transistor will be OFF and nothing happens. When there is sufficient smoke to mask the light from falling on LDR, the LDR resistance increases and so do the voltage across it. The transistor will switch ON which is connected to a tone player to play music.

4. Automatic Street Light: It automatically switches ON when the night falls and turns OFF when the sun rises.

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 30} Developed by: Bosconian Trainers Revision # 02 CIRCUIT OPERATION

 is a simple water level alarm circuit that will produce an audible alarm when the water level reaches a preset level.

 The circuit can be powered of a (3 to 12V) battery and is very handy to use.  The circuit is based on an astable multivibrator wired around IC1 (NE 555).  The operating frequency of the astable multivibrator here will depend on

capacitor C1, resistances R1, R2 and the resistance across the probes A&B.

IC NE555

 The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element.

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 31} Developed by: Bosconian Trainers Revision # 02  PIN 1 “GROUND” low level (0 V)

 PIN 2 “TRIGGER” Voltage below 1/3 Vcc to trigger the pulse  PIN 3 “OUT” Pulsating output

 PIN 4 “RESET” interrupts the timing interval at Output.

 PIN 5 “CONTROL VOLTAGE” Provides access to the internal voltage divider; default 2/3 Vcc.

 PIN 6 “THRESHOLD “The pulse ends when the voltage is greater than Control.  PIN 7 “DISCHARGE ” Open collector output; to discharge the capacitor.  PIN 8 “VCC” Positive supply voltage is usually between 3 and 15 V.

RESISTOR

 Resistor is a passive component used to control current in a circuit.  Its resistance is given by the ratio of voltage applied across its

Terminals to the current passing through it. Buzzer

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 The piezo buzzer produces sound based on reverse of the piezoelectric effect.  The generation of pressure variation or strain by the application of electric potential

across a piezoelectric material is the underlying principle. CAPACITOR

 Capacitor is a widely used electronic component. It stores electric charge and then discharges it into the circuit.

BATTERY[12V]

 It is a collection of one or more electrochemical cells in which stored chemical energy is converted into electrical energy.

 The principles of operation haven’t changed much since the time of Volta. Application & advantages

 Water level indicator is used in applications like storage tanks, boilers etc. to indicate level of water inside.

 Easily indicate when water level is full in tank with beep Sound.

(36)

Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 33} Developed by: Bosconian Trainers Revision # 02 Fill in the blank

Equipment List

Equipment name Quantity used in a circuit Quantity used in Whole Project Transistor (npn) LEDs (White) Variable Resistor Resistance (10K) Resistance (1K) LDR Specifications Equipment

name Voltage Resistance Power Current

Transistor LED Variable resistor Resistance Resistance LDR Circuit Diagram Result/ Comments:

(37)

Key answer

Equipment List

Equipment name

Quantity used in a circuit Quantity used in

Whole Project

Transistor (npn)

1

1 LEDs (White)

1

1 Variable Resistor

2

2 Resistance (10K)

1

1 Resistance (1K)

1

1 LDR

1

1 Specifications

Equipment

name

Voltage

Resistance

Power

Current

Transistor

9 V

LED

2 V

2V

Variable

resistor

9 V

Resistance 1

10K

Resistance 2

1K

LDR

Circuit Diagram

Result/ Comments: Base on result student

(38)

Learning Experiences

Learning Outcome 3

Domestic Home Appliances (Washing machine and TV

receiver

Learning Activities

Special Instructions

Read Information Sheet No. 3.2 of

troubleshooting technique

Answer Self Check no. 3.1.2

Compare answer to Answer key no.

3.1.2 Operation Sheet No. 3

Application of substitution technique

Soldering/de soldering and

wiring/cabling techniques

Schematic diagram reading skills

Refer performance to Criteria

Checklist no. 3.2

(39)

Information Sheet NO 3. 0

Domestic Home Appliances (Washing machine and TV

receiver

Learning Objectives: able to perform Reassemble and test repaired

appliance in Domestic Home Appliances (Washing machine and TV receiver.

Definition and terms

Definition of Washing Machine.

Anti Crease Programme

At the end of the cycle, the drum performs extra turns to gently untangle clothes. This helps to reduce creasing and makes ironing much easier. AntiVibration Technology

This feature ensures Bosch washing machines are extremely quiet, with extra insulation and a spiral wall design.

AquaSpa

The Aqua Spa system is a high-tech feature available on many Bosch

machines. It soaks the load more efficiently, using the perfect amount of water and less energy.

AquAvoid

This anti-leak technology is available in all Blomberg machines. The water supply to the machine is cut off in the event of an internal leak.

Audible End of Programme

A sound alerts you to the fact the cycle has finished. B

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This program is designed for the most delicate laundry items, such as baby clothing and soft toys.

Built-in (BI)

A machine that slots inside your kitchen cupboards so it's hidden from view. See 'Integrated'.

C

Child Safety Lock

This ensures children can't open the washing machine door while a cycle is in progress. The term may also refer to a feature which locks the buttons on a machine so they can't be used. This stops children from accidentally starting a wash or changing your preferred settings.

Cycle Time

The average length of time a particular cycle or programme will take. D

Delicate Wash Programme

A very gentle cycle which will safely wash delicate items. Detergent Compartment

A drawer for liquid detergent and fabric softener. Digital Display

An electronic screen which displays programme options and features such as timers and settings.

Door Hinge Position

The position of the hinge dictates the direction in which the washing machine door will open. For example, a door with a left hinge position will open to the left.

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 38} Developed by: Bosconian Trainers Revision # 02 The amount the washing machine drum can hold in liters. E

Eco Programme

An extra cool or energy efficient wash. Different types of machine may have cool and eco settings under other names.

Eco Tech

Eco Tech is Hotpoint's unique grading system. Machines are awarded the Eco Tech stamp of approval if they achieve an energy rating of A+.

Eco Time

This function is offered on many Indesit machines. It reduces the cycle time by 30% and uses up to 40% less water and energy. Eco Time provides savings on your energy bills and is kinder to the environment.

EcoPerfect

The EcoPerfect option is an incredible energy saving solution available on Bosch VarioPerfect washing machines. Choosing EcoPerfect can be 30% more

economical than even the most energy efficient appliances. Energy Consumption

The average amount of electricity used by a washing machine during one cycle or over a whole year.

Energy Rating

This rating indicates the energy efficiency of a washing machine or other

appliance. The highest rating is A+++. Machines with a higher rating are more environmentally friendly and cost less money to run.

Energy Saver

An Indesit function which can be applied to a number of cycles. This allows you to make energy savings of up to 70%.

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 39} Developed by: Bosconian Trainers Revision # 02 Extra Rinse

This function provides an extra rinse and is useful for removing stubborn stains and remaining traces of detergent.

F

Fifteen Minute Quick Wash

Many modern machines now offer a 15 minute quick wash programme which performs a cycle in a quarter of an hour. This is a useful feature for cleaning and freshening clothes in a hurry.

Flexidose

The Zanussi Flexidose drawer is an intelligent Detergent Compartment that uses your detergent in the most effective way.

Freestanding

These machines stand independently and can be set-up anywhere in the kitchen, garage or utility room.

Front-loading

Clothes are loaded into the washing machine from a porthole in the front. G

H

Half Load Function

Select this function for smaller loads of washing to reduce the amount of water and energy used in the cycle.

Hand Wash

A very gentle cycle suitable for items that would ordinarily be hand-washed. I

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Integrated machines are built in to the existing kitchen layout and are often hidden behind a cupboard door. See 'Built-in'.

Intelligent Wash System

Sensors within the drum detect the size of the load and alter the water level and cycle time to correspond with it. This highly innovative feature saves time, money and energy.

J

Jetsystem

The Zanussi Jetsystem automatically adjusts water level, cycle time and energy consumption to accommodate the size of the load. This allows you to wash smaller loads with minimal water and energy use.

K L M

Maximum Wash Capacity (kg)

The maximum amount of laundry (in weight) a machine can wash in one load. For example, a family sized machine may have a maximum capacity of 8 kilograms.

Mini Load Setting

Similar to the half load function. The amount of water and energy used by a cycle is reduced to accommodate a smaller amount of laundry.

N

Noise Level (db)

The amount of noise in decibels (a unit for measuring sound) a washing

machine makes whilst in use. The lower the number, the quieter the machine. Number of Programmes

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This indicates how many wash programmes available on a machine.

Programmes may include cool wash, half load, delicate, woollen, hand wash and more.

O P

Porthole

The entrance to the washing machine drum by which you can load clothes. Pre Wash

This function is used to rinse and lightly wash clothes prior to the main cycle. It is useful for stained and heavily soiled clothing.

Q

Quick Wash Cycle

This programme completes a full wash in less time; it is energy saving and time-efficient.

R

Rinse Hold

A very smart feature that allows you to delay the final rinse until a more convenient time.

S

Silent System Plus

A low-noise motor and noise insulation panels ensure AEG washing machines are extremely quiet.

Silk Wash

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 42} Developed by: Bosconian Trainers Revision # 02 SpeedPerfect

The SpeedPerfect function by Bosch allows you to reduce cycle times without compromising on the performance and quality of the wash. It is available on VarioPerfect machines.

Spin Performance

A rating awarded to machines which indicates how efficiently water is extracted from clothes during the spin cycle.

Spin Speed (RPM)

The speed at which the drum spins during a wash. A higher speed means clothes will be drier when they come out of the machine.

Start Timer Delay

This function allows you to load the drum, add your detergent and select a time for the machine to start up to 24 hours in advance.

T U

Unbalanced Load Control System

Modern technology from Beko which ensures laundry is evenly distributed around the drum during the cycle.

V

Variable Spin Speed

This feature allows you to choose the spin speed of a cycle. You can select a faster spin to extract more water and speed up the drying process, or slower speeds to reduce creasing.

Variable Temperature

The majority of machines now allow you to set the temperature of a cycle depending on your requirements.

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A flexible technology by Bosch that allows you to tailor wash cycles to your requirements. See 'EcoPerfect' and 'SpeedPerfect'.

W

Wash Performance

This is a rating awarded to indicate the overall cleaning power of a washing machine.

Water Consumption

This is the average amount of water used by a machine during a cycle. Wool Programme

A cycle designed to safely wash woollen garments. This cycle has slower spin speeds to ensure items are not stretched.

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Definition of Television.

 activity = something you do, especially in your free time

 affect = have an effect on

 amount = sum

 attract = catch the attention of

 audience = people who watch TV

 better off = to have a better standard of living than someone else

 broadcast = to send out television programs

 campaign = a series of events that lead to an election

 claim = to say that something is true

 critic = someone who criticizes a person or an idea, or is against it

 encourage = tries to make us think

 engage = take on, do

 enormous = very big

 gain = get

 get exercise = do sports

 glamorous = exciting, fascinating, expensive

 impact = influence

 lack = do not have enough

 perceive = see, observe

 politics = ideas and activities that are connected with the government

 popularity = to be famous, well-known

 present = show

 probably = most likely

 Super Bowl = the final game of the American football season, usually played at the end of January or the beginning of February

 commercial broadcaster = television station that gets its money through advertisements and commercials

 giant = very big company

 global reach = you can watch them in many countries around the world

 major = important

 network = group of TV stations that belong together and usually broadcast the same programs

 notable = important

 public = free, open

 state-owned = controlled by the government

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 45} Developed by: Bosconian Trainers Revision # 02 Lesson proper 3

What is a Washing Machine?

 A washing machine is an machine that washes clothes, linen  Was made to help wash clothes easier

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 46} Developed by: Bosconian Trainers Revision # 02 Inside of a Washing Machine  Two Steel Tubs

◦ Outer = Seals water. Mounted so that inner can move without banging. ◦ Inner = Holds clothes and with the agitator in the middle with holes around

the side of the tub. Attached to gearbox

 There are 3 pulley

◦ One side of frame moves up ◦ Other side frame goes down  Has Damping System

◦ Uses friction to absorb force of the dangling pulleys

Plumbing

 Before hose release water into tub, it is send through anti-siphon device ◦ Prevent water from being sucked back into the water line

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 47} Developed by: Bosconian Trainers Revision # 02 Plumbing  Water Inlet

◦ Water enters that way

◦ Nozzle to the right: Overflow port

Pump

 Re-circulates water and drains it  Has 2 separate pump in one

◦ Bottom half: Hooked to drain line ◦ Top half: Re-circulates wash water

Control

 Cycle switch

 Speed and temp. control switch

Some Tips of Washing Machine in Problem & Possible Cause.

Problem Possible Cause

1.Wash Motor Not Working But Spin Motor Are

Working Wash Motor Problem/Switch/Line

2. Spin Motor Not Working But Motor Is Working. Spin Motor Problem/ Switch Line/ Fan Belt 3. Both Spin & Wash Motor Are Not Working. AC Line Cord/Power Cord Problem/ Spin/

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Troubleshooting in single motor

The following symptoms are not trouble.

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Self- Check no. 2.1.2

Test 1: Television - Multiple Choice Exercises

1. The first television broadcasts started in

a. Great Britain

b. the USA

c. Germany

2. The biggest TV audiences are attracted by

a. social events

b. sports

c. politics

3. In Europe, state-owned television

a. does not exist any more today

b. had a monopoly for a long time

c. gets less money than private companies

4. CNN became popular as a

a. news network

b. documentary channel

c. movie station

5. Cathode-ray tubes

a. shoot electrons to a screen covered with phosphor

b. work with two sheets of glass

c. have pixels that can be turned on and off

6. Digital TV signals

a. carry less data than analog signals

b. have a better picture quality than analog signals

c. cannot transmit images in high definition

7. The first public TV station in America was

a. PBS

b. ABC

c. CBS

8. Every color on television can be achieved by mixing together

a. red, yellow and blue

b. blue, green and white

c. red , blue and green

9. An analog signal in the form of an electromagnetic wave

a. can travel to satellites and back again

b. can travel directly from the TV station to people's homes

c. cannot travel for a long distance

10. The first big event that attracted millions of TV viewers was

a. the TV debate between John F. Kennedy and Richard Nixon

b. Who Wants To Be A Millionaire

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11. Tele-novelas are short popular TV series in

a. South America

b. the United States

c. Europe

12. Commercial TV stations get most of their money

a. from fees from their viewers

b. from the government

c. by selling advertising time

Test II. Fill In the Missing Words Fill In the Correct Words.

Great Britain and America were the first countries to experiment with television in the 1930s and

40s. The three big American TV

ABC, CBS and ABC were founded after World War II.

They brought television to a growing

in the 1950s.

Television became the major

of information. In 1960 the first TV

in history was

broadcast between Richard Nixon and John F. Kennedy. Television also influenced the way people

thought about the

in Vietnam.

In the 1980s the

of America’s big TV stations was broken. New networks started

news, sports and music around the clock. CNN, an all-news network, became famous

for its

of the Gulf War.

In the last decade TV channels focused on

programs and reality shows. Among the

most

are Who Wants to Be a Millionaire and Survivor.

advertising - audience - broadcasting - coverage - debate - entertainment - monopoly - networks - popular - public - source - war

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III. Enumeration

1. Classified into two types of Washing machines?

2. What are the basic Parts of Washing Machines?

3. Are the Tools Need when Dis assembles and Assemble of Washing

Machine.

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ANSWER KEY No.2.1.2

Test 1: Television - Multiple Choice Exercises

1. A

2. B

3. B

4. A

5. A

6. B

7. A

8. C

9. C

10. A

11. A

12. C

Test II. Fill In the Missing Words Fill In the Correct Words.

Great Britain and America were the first countries to experiment with television in the 1930s and

40s. The three big American TV

NETWORKS

ABC, CBS and ABC were founded after World

War II. They brought television to a growing

AUDIENCE

in the 1950s.

Television became the major

SOURCE

of information. In 1960 the first TV

DEBATE

in history

was broadcast between Richard Nixon and John F. Kennedy. Television also influenced the way

people thought about the

WAR

in Vietnam.

In the 1980s the

MONOPOLY

of America’s big TV stations was broken. New networks started

BROADCASTING

news, sports and music around the clock. CNN, an all-news network, became

famous for its

COVERAGE

of the Gulf War.

In the last decade TV channels focused on

ENTERTAINMENT

programs and reality shows.

Among the most

are Who Wants to Be a Millionaire and Survivor.

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III. Enumeration

1. Single tub Machines and twin Tub Machines.

2. The basic parts are the fallowing.

a. Belt Drive Washing

b. Machine Shown

c. Inlet Connections

d. Air Dome Seal

e. Center Post Gasket

f. Outer Tub Seal

g. Pump

h. Hose Connectors

3. Basic Tool Need to assemble and Dis assemble of Washing Machines are

the fallowing.

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IV. Drawn Schematic diagram. 2 kinds of Washing Machine and block Diagram

Television.

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Electronic Products Assembly and Servicing NC-II Date Developed: March 26,2015 Document No. Issued by: SJBFTC.INC _{Page 62} Developed by: Bosconian Trainers Revision # 02 Block Diagram of Television.

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CCTV (closed-circuit television) is a TV system in which signals are not publicly distributed but are monitored, primarily for surveillance and security purposes. CCTV relies on strategic placement of cameras, and observation of the camera's input on monitors somewhere

Categories

• How Do CCTV Camera Work? • CCTV Camera Benefits • CCTV System Types • CCTV Camera Types • Installation • Configuration CCTV System Types

CCTV systems are broadly divided into two Types. These are:

1. Wired CCTV system 2. Wireless CCTV system.

CCTV Camera Benefits

CCTV is commonly used for a variety of purpose, including:

• Maintaining perimeter security in medium-to high- secure areas and installations.

• Observing behavior of incarcerated inmates and potentially dangerous patients in medical facilities.

• Traffic monitoring