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By  Manisha Trivedi E.I Final Year SEMI N R ON INDUSTRIAL TRAINING

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Page 1: Seminar on Industrial Training

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By 

Manisha Trivedi

E.I Final Year

SEMIN R ON

INDUSTRIAL

TRAINING

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BOUT

 

KORTEK

 

ELECTRONICS

 

“   Kohin Electronics” touched the Indian shore way back in 2000

and thus a new era in Indian consumer electronics

began with founding of Kortek Electronics by Mr. Y.M. Yoon. 

Kortek Electronics in a short span of six years set up two

state-of- the art manufacturing facilities.

KORTEK provides its customers with world-class electronics products through a network of manufacturing facilities spread

across India.

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Vision

 

To strive to become the most respected cherished company in our chosen

field through innovative, excellent and quality product with customer

delight at the core of every business process. 

Mission

Kortek Electronics has a mission to benefit the society through

innovative and user friendly product which add value to people’s life

striving for human development at all endeavours it undertakes

.

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Manufacturing Facility 

Manufactures Export quality products through latest technology SMT units. 

KORTEK has one of the largest and most advanced manufacturing facilities in the

country today.

Emerged as a Korean MNC in the field of electronics, making its presence in India by

doubling its turnover year by year, striving for customer delight.

Manufactures export quality DVD player, Video karaoke system, Remote control

of AC & CTV , Auto insertion & manual insertion of CTV & Monitor

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  P

RODUCT

 C

ATEGORIES

 

Mp3 player DVD player

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  PRODUCT CATEGORIES

 

Microphone Karaoke system

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  C

ERTIFICATION

 

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KORTEK

has one of the largest and most advanced manufacturing

 facilities in the country today. The manufacturing centers are spread

across the following locations.

Set Top Boxes : 1 00 000/Month 

Auto Insertion :

1 50 000

PCBs/Month 

SMT : 1 00 000/Month 

Remote Control :

 

4 25 000/Month

 

Manual Deck Assy : 1 25 000/Month 

Greater Noida:

Located in the Industrial Area just off Surajpur, Kasna Road, equidistant

 from Delhi, Noida & Ghaziabad. It was developed in the late 2000 with a

strong corporate identity.

Capacity: 

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Final

Assy.

DVDs :

1 00 000/Month 

DVD

Remote

Control :

1 00 000/Month 

Karaoke

Mikes :

3 500/Month 

Rudrapur:

It is a small and beautiful town with all basic modern

 facilities. In vicinity of Nainital, this is the most prosperous town of

Uttarakhand.

Capacity: 

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KORTEK ELECTRONICS,

G

REATER

 N

OIDA

 

 Auto Insertion Department

Manual Insertion DepartmentSet-Top Box Department

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What is a PCB?

 A printed circuit board, or PCB, is used to mechanicallysupport and electrically connect electronic components  

using conductive  pathways, or traces , etched   from copper

sheets laminated   onto a non-conductive substrate. It is

also referred to as printed wiring board (PWB) or etchedwiring board. A PCB populated with electronic

components is a printed circuit assembly (PCA), also

known as a printed circuit board assembly (PCBA).

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Forming an AI CTV PCB assembly

Insertion of components :

Surface mount: In this technique components that

had smaller metal tabs or end caps were designed so that they

can be directly soldered onto PCB. This increased the Circuit densities

because the components became much smaller.

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2.Through-hole: 

in this technique components that

involve the use of pins are inserted onto the PCB in the holes

drilled into it. These pins are then soldered to pads on opposite

sides . The components that are inserted through this techniqueare as shown:

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The main processes involved in this

department are :

•Eyelet/gripper insertion.

•Sequencing of components.

•Axial insertion.

Radial insertion.

•Manual missing testing.

•Check master system.

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Eyelet/gripper insertion:

This process is carried out to insert eyelets and grippers on the PCB.Eyelets are inserted to provide mechanical strength to the PCB in

case any heavy components are inserted on one side which might

disturb its balance.

Grippers are inserted so that they can be used to hold the componentsto the PCB.

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Sequencing of components:The sequencer is a modular that increases the component handling capacity

By joining add on dispensing modules to the machine. Each dispensing has 20

Dispensing stations. These sequences are then put in strips form and fed to

Various machines.

 A resistor sequence A ceramic capacitor sequence

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Manual missing testing:In this stage the PCB is visually tested for any errors by a manual

missing testing machine. If any component is missing from the

PCB this machine indicates it by dropping a pin at that point.

 A manual missing testing machine

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Check master system CMS):This system checks the PCB for any errors that might have occurred

while sequencing or inserting the values of the components.

 A CMS system

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Forming a MI CTV PCB assembly:

The main processes involved are:

•Pre forming area.

•Man mounting line.•Wave soldering.

•Touch up area.

In circuit testing.•Final visual

•Functional testing.

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Man-mounting line:

In this men are made to sit in a line and are detailed as to whatcomponents they have to insert on the PCB. A conveyor belt runs in

 front of them carrying the PCB from one person to another.

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The last persons sitting in the line is assigned the work of visually

inspecting the PCB for any errors occurred. These people are providedwith electric bracelets having 1 mega ohm of resistance to prevent

them from any kind of electric shocks that might occur.

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Wave soldering:

It is a major process in which the components are soldered to the PCB

by passing it through a molten solder present in a tank. Also added

to the molten solder is a Flux which is a inert at room temperatures,

but becomes strongly reducing at higher temperatures. flux acts as a

wetting agent, reducing the tension of the molten solder and causingit to better wet the parts to be joined. Fluxes now available are

water soluble and no clean fluxes that require no removal at all.

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Touch-up area:

Various problems may arise during soldering process which might lead to joints

Which may become non functional immediately or after a certain period of use. An improperly selected or applied flux can cause joint failure or if not cleaned

Properly off the joint can corrode the metals of the joint and eventually lead to

 failure. These and various other problems are removed in this section where

soldering defects are removed manually using soldering guns.

The people doing this task have to wear

masks to avoid inhaling the fumes caused by

it . Also the chimneys are provided to provide

a proper outlet to this air produced.

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In this section the extra leads from the

components soldered onto PCB are also

cut. Only 1 mm of lead length is left andthe rest is cut because only this much of

length is needed for making connections.

In-circuit testing:

in this the PCB is tested through machines for any errors in

component insertion or soldering process.

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Final visual:

In this the PCB is once more tested visually for any mistakes made duringinsertion process.

Functional testing:

The PCB is tested whether or not all the components are working properly. Since

this is a colour television PCB it is important that the audio and videocomponents are all working properly so that no problem is encountered in the

TV afterwards.

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This department manufactures set-top boxes and CFLs.

 A set top box is a device that enables a television to become a user

interface to internet and also enables it to receive and decode digital

television broadcasts.

Compact fluorescent light CFL):

 A CFL is a type of fluorescent lamp. CFLs generally use less power,have a longer rated life but a higher purchase price.

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The procedure of assembling this PCB is a lot similar to the assembling of CTV

PCB assembling. It involves the following steps:

Component insertion by a man mounting line:

Soldering of PCB:

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