Electronics Facts: Video Series

An FM radio works by using a power source and antenna to pick up FM radio signals in the air, which then pass through the amplifier section of the radio to produce sound on the speakers. Use the volume control, tone control and digital synthesizer on an FM radio with help from the owner of an electronics store in this free video on radios.

Digital radio works in much the same way that HD radio does. High-quality, uncompressed sound is put out by digital radio stations to be picked up by the proper radio and antenna. Learn how many FM radio stations also have digital carriers with information from the owner of an electronics store in this free video on digital radio.

A rear projection television works by having a projector in the back of the TV cabinet which puts a reversed image on the front of the screen and produces a normal picture. Projection tubes for a rear projection television generally have to be 2 feet away from the screen. Get information on the best way to watch a rear projection TV from the owner of an electronics store in this free video on televisions.

The way HD radio works is that HD signals are carried through the air on digital carriers, the signals enter the radio through an antenna connection, they are processed by the radio, and amplified by the speakers. Purchase a digital radio and tune to an HD radio channel with tips from the owner of an electronics store in this free video on HD radio.

Digital television works by having a digital antenna connection that programs the digital and analog channels into the TV memory. Find out how digital channels will either appear on a TV or they wont, and there is no in between like there is on regular TVs, with information from the owner of an electronics store in this free video on television.

A plasma television works similarly to a standard TV set, except that instead of cathode ray tubes, there is a flat plasma panel that consists of millions of tiny cells similar to fluorescent light bulbs. Learn how the cells on a plasma television require an electrical charge to become illuminated with information from the owner of an electronics store in this free video on plasma TVs.

Rechargeable batteries are made from different metals than typical batteries, can be charged in less than 15 minutes, and can be used multiple times. Determine how long a rechargeable battery will last on one charge with help from the owner of an electronics store in this free video on batteries.

When buying an amplifier, determine what the amplifier will be used for, figure out how many connections will be required, decide whether it needs to process video signals, and consider a product with HDMI digital inputs and outputs. Use an amplifier for a home theater system if it has enough inputs for multiple speakers with advice from the owner of an electronics store in this free video on amplifiers.

To wire cable TV, purchase an RG-6 quad shield cable, cut the end of the cable neatly, strip the end of the cable, insert the wire into the plug, and use a compression tool to make a positive ground connection. Improve the quality of a cable television signal by re-wiring it with instructions from the owner of an electronics store in this free video on cable TV.

To choose a TV, consider what type of programming will be watched, learn about the difference between LCD and plasma televisions, and get the appropriate size for the size of the room. Pick a television that will provide the best picture quality for your viewing preferences with help from the owner of an electronics store in this free video on televisions.

Improve TV reception by checking whether the cables are compromised, determining whether the digital signal has been compromised, or adjusting the antenna angle to face the broadcasting stations. Find out how problems with the local trunk system in the neighborhood may cause television signal problems with information from the owner of an electronics store in this free video on TV reception.

Repair scratched DVDs by using a disk repair system that requires inserting the DVD into a device that applies a fluid and uses a mildly abrasive wheel to remove the scratch. Discover how deep scratches, or scratches that travel along the path of the DVD, may not be able to be removed with information from the owner of an electronics store in this free video on DVDs.

To dispose of used batteries, contact the local landfill and ask about recycling projects and whether certain batteries can be disposed of normally. Avoid using fire to discard of any battery with advice from the owner of an electronics store in this free video on batteries.

Clean crayon from an LCD screen TV by purchasing the manufacturer-approved cleaning fluids and using lint-free, non-abrasive clothes. Avoid using regular household cleaners on LCD screens with advice from the owner of an electronics store in this free video on LCD televisions.