What are the parts of DVD player? A DVD player is composed of sophisticated electronics, including a disk drive mechanism, a printed circuit board, and an optical system assembly. It consists of a spindle that holds the disk and a motor that spins it.
What are the components of a DVD player?
Video Outputs
- Component-video outputs provide the highest quality video signal to your TV. They are quite rare right now; only the newest high-end TVs can support them. ...
- S-video outputs are more common. ...
- Composite-video outputs are the most common type of output, and they provide adequate picture quality. ...
How to repair portable DVD player?
Step 5: Checking Motors...
- For a good cleaning you can to use a good esare for clean the point contacts of the DC motor.
- Quite the grass, dust ar any other unusual component in the internal of the DC motor.
- You can add some mechanic oil in the movement pieces for a good maintaince.
How do you get a DVD player to work?
- Since DVD players are powered with visual connection and power cords, you need to keep your player fairly close to the screen.
- Consider investing in a TV cabinet or another piece of furniture that provides storage space for your player.
- If your computer has VGA, component video, HDMI, or DVI ports, you might be able to use it with your DVD player.
What is the best HD DVD player?
- Built-in wi-fi connecting your lg a/v product to the internet and the world of online content is easy when you have wi-fi built in.
- The product is a bundle of 1 lg bp350 blu-ray disc & dvd player and 1 alphasonik hdmi cable.
- Plays blu-ray & dvds make the most of your hdtv.
- Hdmi input: alphasonik hdmi cable included.
How does a DVD player work?
A DVD player is very similar to a CD player. It has a laser assembly that shines the laser beam onto the surface of the disc to read the pattern of bumps . The DVD player decodes the MPEG-2 encoded movie, turning it into a standard composite video signal.
What part of a DVD is read?
The dull side usually has a label on it telling you what's on the CD; the shiny side is the important part. It's shiny so that a laser beam can bounce off the disc and read the information stored on it.
What can I do with a broken DVD player?
If your electronic item is in good condition, consider donating it. If not, it should be recycled at an electronics collection or drop-off location. Contact your local recycling coordinator for more information.
What is DVD layer?
DVDThe data side of a DVD manufactured by Sony DADCCapacity4.7 GB (single-sided, single-layer – common) 8.5 GB (single-sided, double-layer) 9.4 GB (double-sided, single-layer) 17.08 GB (double-sided, double-layer) Up to four layers are possible in a standard form DVD.Read mechanism300–650 nm laser, 10.5 Mbit/s (1×)12 more rows
What is DVD stand for?
Digital versatile discDVD / Full name' The original acronym came from 'digital video disc. ' The DVD Forum decreed in 1999 that DVD, as an international standard, is simply three letters. After all, how many people ask what VHS stands for?
Can DVD player be repaired?
You can clean the machine, replace cords, and replace faulty motors, belts, and trays. More often, problems with DVD players are caused by faulty DVD discs, either damaged or dirty. A good investment is a CD/DVD repair kit for polishing out surface scratches, available at larger stores where CDs and DVDs are sold.
What causes a DVD player to stop working?
DVD player not working might be a sign that the disc tray, tray motor or laser is worn out. To fix any of the DVD hardware, you need to open the housing and check the inside with special tools. If you don't know how to fix them, send the DVD player to the repair store nearby and replace the disc drive if necessary.
How can I repair a DVD?
5 Ways to Repair a CD or DVDClean the disc using a soft lint-free cloth and a dab of warm water and mild detergent. ... Fill scratches with toothpaste. ... Soften scratches with heat from a 60W lightbulb. ... Fill the scratch with a wax-based product. ... Cover holes in the data layer with pen and tape.
Supplies
I used a multimeter for testing and set of screwdrivers to open and disassemble it and a soldering iron and vacuum pump to desolder salvaged parts.
Step 1: Opening the Case
Before doing anything be sure that the player is disconnected from the mains. The screws are placed on the sides and back of the DVD player. Remove them.
Step 2: The Power Supply
This SMPS is relatively good and definitely worth salvaging. It can be used to power many modern appliances because it has +/-12V, 5V and ground so you can combine them and than you have 5V, 7V, 12V and 24V difference in potentials. I don't know what power can it deliver but it is good anyway.
Step 3: The Front Board
The front board contains many parts that are definitely worth salvaging. There are LED display, IR sensor, push button switches and the USB port. The LED display can be used in many projects because it contains 4 digits, colon and special characters like DVD, CD, Pause, Play, MP3, MP4.
Step 4: The SCART Connector
This 21-pin connector is widely used for connecting audio-visual (AV) equipment. You can save it and maybe use it if for example SCART conector of your TV is broken, but it's not that worth salvaging.
Step 5: Disc Drive Mechanism
The first what you are going to see that is worth salvaging are the DC brush motors. In this player there are 3 of them. Two of them have mechanism for reducing the RPM and converting rotating motion into linear motion. It can be modified for a hand cranked charger for example and is worth salvaging.
Step 6: The Optical System
The mechanical and optical system is mounted on a peace of metal. There is motor that spins the disc and one motor that moves optics. There is also а switch that stops the motor when optics are at the furthermost position. That is worth salvaging.
What is a DVD player?
The DVD player is not only used for playing the data present in a DVD, but also to write the content onto a DVD. To know this process it is essential to know the basics of a DVD.
How does a DVD work?
Though the laser hits a single spot, the DVD moves in a circular motion so that the entire area is covered. Mirrors are also used to change the spot. These reflected laser beams are then collected by a light sensor (eg. photo-detector) which converts the different signals into a binary code.
What is disc drive?
The disc drive mechanism consists of a motor that will drive the disc in a circular motion. The mechanism will also have a disc feed – a loading tray that is used to accept the DVD from the user. Thus the entire disc drive is basically a spindle that holds the disc and a motor that is used to circle the disc.
What is the optical system of a disc?
2. Optical system. The optical system mainly consists of the laser beam, lenses, prism, photo-detectors and also mirrors. The output of this mechanism will be the input for the disc-drive.
How much data can a single layer DVD hold?
Though the first released DVD’s were only a single layer, 2 layered discs have been released nowadays. Single layer can hold only up to 4.7 GB of data while double layered DVD can hold up to 17 GB of data.
Does a DVD have a hi-def?
A DVD does not have the capacity to hold hi-def movies. So a MPEG-2 compression system is introduced. As this is used, the data will be encoded onto the DVD as elements of the changing frames. This has to be successfully decoded and decompressed by the DVD player.
Is a DVD player good?
A DVD player will only be satisfactory to a customer only if it has a high performance. The degree of quality varies according to the flaws in the assembling process. Thorough inspections in both the visual as well as electrical divisions must be done most of the time.
What is a DVD player?
A DVD player is a device that plays DVDs produced under both the DVD-Video DVD-ROM and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, ...
What is a Philips DVD player?
A DVD player is a device that plays DVDs produced under both the DVD-Video DVD-ROM and DVD-Audio technical standards, two different and incompatible standards. Some DVD players will also play audio CDs. DVD players are connected to a television to watch the DVD content, which could be a movie, a recorded TV show, ...
What is the HDMI connector on a DVD player?
Output connectors of a DVD player (2016): The single HDMI connector on the left is employed to replace the older connection options for audio and video signals, which require at least two, depending on the use case even up to five, individual cable connections with RCA connectors (see middle section, colored). An exception was the technically outdated SCART type A/V connector most right.
How many channels does HDMI support?
Along with video, HDMI also supports up to eight-channel digital audio. DVD players with connectors for high-definition video can upconvert the source to formats used for higher definition video (e.g., 720p, 1080i, 1080p, etc.), before outputting the signal.
How much did DVD players cost in 2000?
By the end of 2000, players were available for under $100 at discount retailers. In 2003 players became available for under $50. Six years after the initial launch, close to one thousand models of DVD players were available from over a hundred consumer electronics manufacturers.
When did Toshiba release DVD-ROM?
Toshiba released a DVD-ROM-equipped computer and a DVD-ROM drive in Japan in early 1997 (moved back from December which was moved back from November). DVD-ROM drives from Toshiba, Pioneer, Panasonic, Hitachi, and Sony began appearing in sample quantities as early as January 1997, but none were available before May.
When was the first DVD player made?
The first DVD player was created by Sony Corporation in Japan in collaboration with Pacific Digital Company from the United States in 1997. Some manufacturers originally announced that DVD players would be available as early as the middle of 1996. These predictions were too optimistic.
What is a DVD player?
A DVD player is designed much like a CD player. For example, computer DVD drives are made the same size and shape as CD-ROM drives. They also have an outer plastic housing and come complete with plastic buttons on the front panel. Some DVD drives have a plastic tray, which extends out from the machine to accept disks. Others have an automatic feed system in which the disk is inserted. Inside the DVD drive, the electronics are also much the same as a CD-ROM drive. Both have sophisticated electronics and include a disk drive mechanism, a printed circuit board, and an optical system assembly. While DVD drive mechanisms come in various designs, each basically consists of a spindle that holds the disk and a motor that spins it. The circuit board contains all of the electronic components, which help convert the data being read into a usable format.
How much information does a DVD hold?
In the early stages of DVD introductions, a single disk will hold as much as 4.7 GB of information. This is roughly equivalent to seven CD-ROMs.
What makes DVDs superior to CDs?
When a pit is encountered, the data point is read as a 1. However, the key innovation that makes DVDs superior to CDs is the laser used to read and create the pits. DVDs use a shorter-wavelength, red laser that can place pits more densely on the surfaces of the disks.
How many gigabytes are in a DVD?
Digital video disk or digital versatile disk (DVD) is a type of optical data storage medium capable of holding up to 17 giga-bytes (GB) of information. First introduced during the mid-1990s, they were developed as an improved form of compact disk (CD) technology. DVDs can produce such high quality pictures and sounds, they are expected to eventually replace both VCRs and CD players. It is anticipated that the market for DVD players will reach 10 million units by the year 2000.
What is the difference between a DVD drive and a DVD drive?
Both have sophisticated electronics and include a disk drive mechanism, a printed circuit board, and an optical system assembly. While DVD drive mechanisms come in various designs, each basically consists of a spindle that holds the disk and a motor that spins it.
When was the DVD made?
The development of DVD began with the introduction by Sony of the CD in the early 1980s. This new storage medium employed a laser to read tiny pits carved in a disk. The first CD audio players were introduced in 1983. They were useful because it was possible to store more than 75 minutes of music on one disk.
Do DVDs degenerate?
Additionally, the picture will not de generate with age or use. Computer programs will also benefit from DVDs. For example, programs, which used to take up multiple CDs can now be condensed onto a single DVD. Video games will also benefit from DVD technology.
How does a DVD player work?
The DVD player decodes the MPEG-2 encoded movie, turning it into a standard composite video signal (see How Television Works for details).
How many discs can a DVD player hold?
Disc capacity Some DVD players can hold three, five or even several hundred discs .
What is the wavelength of a DVD laser?
A laser and a lens system to focus in on the bumps and read them - The light from this laser has a smaller wavelength (640 nanometers) than the light from the laser in a CD player (780 nanometers), which allows the DVD laser to focus on the smaller DVD pits.
What type of remote controls DVD players?
Remote-control type. DVD players may come with three types of remotes: A dedicated remote , which only runs the DVD player. A multibrand remote, which can control other components, like VCRs and TVs made by other manufacturers (Usually, they only support the more common brands.)
What color is the RCA video output?
The last option, similar to the audio setup, is to use the analog RCA video output, usually color-labeled yellow on both ends. This will deliver the lowest quality, but will suffice for most older, analog televisions. For more information about DVD players and DVD technology, see the links on the next page.
Why are DVDs so durable?
Because DVDs are so durable, film aficionados can watch a favorite movie repeatedly without the disc losing its quality. This is also good for parents whose children like to watch the same movies over and over again.
Do DVD players have component video outputs?
But, if you have such a TV, you'll definitely want a DVD player with component video outputs. There are three separate connectors for component video output. S-video outputs are more common. S-video provides a very good picture quality, and every DVD player has at least one of these outputs.
Step 1: Getting Ready
Keep all your necessary tear-down tools ready. [ screwdrivers, pliers, tweezers, hammers (only if you are impatient :P).....]
Step 2: Getting Inside
Unscrew the enclosure. If you get stuck refer to the service manual (it may contain information about disassembling the device ).
Step 4: 2. Segmented LED Display
Uses: Seven segmented displays are quite useful for different hobby projects including make timers, stopwatches,counters etc. I wanted to make a clock out of it but realized that it only has a single digit for the hour.
Step 8: Opening Up the DVD Tray: 6. Motors
Took out the tray as a whole and slowly started removing things one by one. It had 3 motors in total :
Step 10: What Remains
This board is mostly made of SMD components that are not so easy for hobbyists to handle. Though the board has components like
How does a DVD work?
Like a CD, the data on a DVD is encoded in the form of small pits and bumps in the track of the disc. A DVD is composed of several layers of plastic, totaling about 1.2 millimeters thick.
How small is a single layer DVD?
That the spiral track starts at the center means that a single-layer DVD can be smaller than 12 centimeters if desired. What the image to the left cannot impress upon you is how incredibly tiny ...
What are the bumps on a DVD?
They appear as pits on the aluminum side, but on the side that the laser reads from, they are bumps. The microscopic dimensions of the bumps make the spiral track on a DVD extremely long.
What is the reflective layer on a disc?
Once the clear pieces of polycarbonate are formed, a thin reflective layer is sputtered onto the disc, covering the bumps. Aluminum is used behind the inner layers, but a semi-reflective gold layer is used for the outer layers, allowing the laser to focus through the outer and onto the inner layers.
