Page 230 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

HDMI cables: HDMI cables are used to transmit high-definition video and audio signals between devices like
computers, TVs, and gaming consoles. They are important for ecommerce sites that rely on video content to
showcase their products.
Display Port cables: DisplayPort cables are similar to HDMI cables and are used to transmit high-quality video
and audio signals between devices like computers and monitors. They are ideal for ecommerce sites that need to
display high-quality images and videos.
Thunder bolt cables: Thunderbolt cables are used to transfer data and video signals between devices like laptops,
monitors, and hard drives. They are faster and more versatile than USB cables and are ideal for ecommerce sites
that require high-speed data transfer.
Card Reader:
A card reader is a device that can decode the information contained in a credit or debit card’s magnetic strip or
microchip.
In finance, the term “card reader” refers to the technologies used to detect the account number, cardholder
information, and authorization code contained on a credit card. This information is contained either in the magnetic
strip of the card, or in the microchip embedded in chip-enabled cards.
Although historically card reading technologies relied on physical copies being made and stored by the vendor,
today’s card readers are able to scan and process this information electronically at nearly instantaneous speeds.
Concept of OTG, OTA, LTE, SNS and NFC:
OTG : This stands for On the Go and what that implies is that devices with OTG support USB On the Go. Meaning
that with OTG supported devices you can easily use USB devices directly on them, USB devices like your flash
drives, printers, scanners etc. without necessarily needing a PC to transfer your files, print and scan documents.

You need a compactible OTG cable for that and some companies even include these cables as part of accessories
on your purchases for OTG supported devices or you can get them separately sold in the market.
OTA: OTA stands for Over the Air technology. It is a technology that allows you to receive direct update notifications
to your devices and also to be able to update your devices immediately and directly without any PC as far as you
have high speed internet connectivity.

LTE: LTE stands for Long Term Evolution and it is basically the 4G network technology architecture that you used
to hear about. A device with LTE means that that very device has a 4G network support. Those devices also have
those other lower network supports as in 2G and 3G network included.
SNS: This stands for Social Network Service. When you see or hear that a device has SNS Integration feature, it
simply means that the device is enabled to establish social network of people via platforms like Facebook, Twitter,
E-mails and other notable social networks.
NFC: NFC stands for Near Field Communication. This is a technology that is quite similar to that of your Bluetooth
but varies in number of ways. With NFC enabled devices, you will be able to transfer data to another NFC device
in a more secured manner but at a very short range.
Mobile Phone (Smartphone) Repairing Tools and Equipment

When selecting mobile phone repairing tools and equipment, it is important to select the best tools, even if it
costs little more. Cheap or inexpensive tools and equipment may not be handy or comfortable (ergonomic) when
repairing a mobile cell phone.
On the other hand, little expensive but best quality tools and equipment will help you to repair a mobile phone
easily and comfortable. I am personally trained in mobile cell phone repairing and my personal experience says
that we must always select and buy the best tools available in the market or online. These good quality tools may
cost a little more but in the long term you will be happy that you bought the best tools.
Below is list of all the professional tools and equipment needed for mobile cell phone repairing:
1 Soldering Iron:
A soldering iron is used to solder small components like capacitor, resistor, diode, transistor, regulator, speaker,
microphone, display etc. A 50 watt soldering iron is good enough for most mobile phone repairing job.

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CITS : E & H - Electronics Mechanic - Lesson 130 - 145