Page 188 - CITS - Electronic Mechanic - TT - 2024

ELECTRONICS MECHANIC - CITS

5 Circuitry Issues
• Internal circuitry faults, such as damaged traces, loose connections, or component failures, can cause various
operational issues in the remote control.
6 Programming Errors
• Programmable remote controls may experience errors or glitches in programming, resulting in incorrect button
mappings or functionality.
7 Worn-out Buttons
• Continuous use of certain buttons on the remote control may lead to wear and tear, causing the buttons to
become less responsive or fail entirely.

Difference between LCD,LED & SMART TVPA

LCD TV (Liquid Crystal Display LED TV (Light Emitting Diode Smart TV:
TV): TV):

1 Technology: LCD TVs use 1 Technology: LED TVs are a 1 Functionality: Smart TVs
liquid crystal displays to create type of LCD TV that uses light- integrate internet connectivity
images. These liquid crystals do emitting diodes (LEDs) for and interactive features
not emit light on their own and backlighting instead of CCFLs. alongside traditional television
require a backlight source.
2 Backlighting: LED TVs use functions.
2 Backlighting: LCD TVs typically LEDs for backlighting, which 2 Internet Connectivity: Smart
use cold cathode fluorescent can be placed behind the entire TVs have built-in Wi-Fi or
lamps (CCFLs) for backlighting, screen (direct-lit) or around the Ethernet ports, allowing users
which are placed behind the edges (edge-lit). to access online content and
LCD panel.
3 Thickness: LED TVs are services directly from their TV
3 Thickness: LCD TVs tend to generally thinner and lighter screens.
be thicker compared to LED compared to LCD TVs with 3 Streaming Services: Smart
TVs because of the CCFL CCFL backlighting, allowing for TVs offer access to streaming
backlighting. sleeker designs.
services such as Netflix, Hulu,
4 Energy Efficiency: LCD TVs 4 Energy Efficiency: LED TVs are Amazon Prime Video, and
with CCFL backlighting are less more energy-efficient than LCD others, enabling users to watch
energy-efficient compared to TVs with CCFL backlighting, as movies, TV shows, and original
LED TVs. LEDs consume less power. content on-demand.
4 App Store Access: Smart
TVs come with app stores or
platforms where users can
download and install additional
applications for gaming, social
media, news, weather, sports,
and other entertainment options.

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CITS : E & H - Electronics Mechanic - Lesson 100 - 107