* verily Scratched!
First we have to understand a exiguous bit of background about Lcd screens to know why we should be meticulous when cleaning. Lcd stands for Liquid Crystal Display; which has crystal molecules sandwiched under layers of polarized panels. These panels are regularly made of "plastic-like" polymer materials, and like any plastics they can be verily scratched or gouged, even by just your fingernails! That's why cleaning Lcds requires special care while cleaning compared to the old glass Crt monitors!
Vizio Audio Problems
* What You'll Need
VIZIO M3D420SR 42-Inch 1080p 3D LCD TV (Black) Best
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VIZIO M3D420SR 42-Inch 1080p 3D LCD TV (Black) Feature
- 42-inch class (42.02 inches viewable) 3D HDTV features Razor LED backlighting with Smart Dimming, Full HD 1080p resolution
- Immersive VIZIO Theater 3D uses lightweight, inexpensive polarized glasses (two pairs included)
- Built-in Wi-Fi connectivity with Internet Apps for access to Amazon Instant Video, Netflix, Pandora, and more
- 240Hz SPS delivers an enhanced frame rate for sharper clarity of fast-action scenes and blur-free images
- Enhanced two-sided remote control with full QWERTY keyboard
- Built-in WiFi 802.11n
- Edge Lit Razor LED backlighting
- Includes 4 pairs of VIZIO 3D glasses (2 premium, 2 basic)
- Theater 3D - Bring the movie theater 3D experience home!
- Two-sided IR QWERTY remote
VIZIO M3D420SR 42-Inch 1080p 3D LCD TV (Black) Overview
Bring the movie theater 3D experience home! VIZIO’s 42 Inch Theater 3D Edge Lit Razor LED LCD HDTV delivers stunning, cinema-style 3D. Whether you’re watching the latest summer blockbuster or the championship game, Theater 3D means you see crystal-clear, flicker-free 3D that has a brighter picture than conventional 3D. Includes 4 pairs of 3D glasses, so you can immediately share the excitement with friends and family!Featuring Edge Lit Razor LED backlighting, 240Hz SPS refresh rate, and 1080p Full HD, this superb HDTV renders both 2D and 3D with amazing clarity, color and contrast. And VIZIO makes no compromises when it comes to sound with SRS StudioSound HDAlso includes VIZIO Internet Apps and built-in dual-band 802.11n WiFi, giving you the convenience of on-demand movies, TV shows, social networking, music, photos, and more-all at the push of a button on the premium Two-sided IR QWERTY remote.VIZIO M3D420SR 42-Inch 1080p 3D LCD TV (Black) Specifications
3D Technology Checklist
This product is 3D-related. To help you get a great 3D experience, use the checklist below to ensure you have everything you need. 3D viewing requires:
 | A Display First, you'll need a 3D-ready display--whether it's a 3D HDTV, 3D projector, or 3D computer monitor. These displays have more processing power than standard 2D models for displaying 3D images in rapid succession. |
 | A Source Your display may be ready for 3D playback, but you'll still need a device to read 3D content. This can be a cable box with a subscription to a 3D channel, a 3D Blu-ray Disc player, or a PlayStation 3 system. |
 | 3D Content 3D content--the actual entertainment, in other words--will be played back using the source mentioned above, whether it's a 3D broadcast from your cable provider, a 3D Blu-ray Disc, or a 3D video game. |
 | 3D Glasses For now, the vast majority of 3D HDTVs require glasses for 3D viewing. Many use powered 'active shutter' glasses, others polarized 'passive' glasses. You'll need one pair per viewer, and they'll have to be compatible with your display, whether they're the same brand, or a pair of 'universal' glasses designed to work across brands. |
 | HDMI Cable To connect your source (such as a 3D Blu-ray Disc player) to your display, you'll need a high-speed HDMI cable. Cables with this designation feature bandwidth speeds up to 10.2 Gbps (gigabits per second), for carrying the 3D signal without any loss of quality. |
If you want to get more information about 3D, shop our 3D products, watch videos, or interact with other customers, we invite you to visit 3D 101, our customer center about everything 3D. | |
Internet-Ready Television
Internet-ready TVs use your broadband connection to deliver dynamic content, whether it's streaming video from Netflix, new music from Pandora, or a quick glance at today's weather forecast.
Although there is overlap, each manufacturer offers a unique bundle of free or paid services, including streaming video and music, social networking apps, online photo galleries, news and financial updates, weather info, sports scores, and a variety of other smartphone-like applications.
Manufacturers continue to add new content to their offerings, keeping customers current through firmware updates, and making a bit of research a prudent step in your buying decision.
Learn more about Internet TVs, how they work, what services are offered by different manufacturers, and exactly what you'll need to get started at our Internet TV 101 customer center.
August 2011
VIZIO's 42-inch class M3D420SR delivers an immersive 3D experience with lightweight, simple Theater 3D glasses. It's no slouch with 2D programming either, thanks to edge-lit Razor LED backlighting with smart dimming for a brilliant picture, a 240Hz refresh rate to get rid of motion artifacts, a 100,000:1 dynamic contrast ratio, and technologies like an ambient light sensor and SRS StudioSoundHD audio. Add integrated Wi-Fi and VIZIO's suite of Internet Apps and you've got an affordable performer with entertainment options galore.
Bring the Movie Theater 3D Experience Home
Immersive Theater 3D
Bring that intense 3D movie experience home with VIZIO's polarized Theater 3D. You'll enjoy the same crystal-clear, flicker-free 3D you get in the theater, with similar lightweight glasses that are comfortable and significantly more affordable than the heavier, powered active shutter 3D glasses used with other systems. Two free pairs of glasses are included, so you can launch your Theater 3D experience right out of the box.
Razor LED Backlighting With Smart Dimming
Edge-Lit Razor LED backlighting with Smart Dimming intelligently controls each block of LEDs, automatically turning them completely on and off to create serious contrast, vivid colors, and top-notch picture quality. This backlighting technology also allows for an impressively slim form factor of just over an inch.
Enjoy your high-definition sources in Full HD 1080p resolution, with a 100,000:1 Dynamic Contrast Ratio, for a clear, detailed picture with deeper blacks and brighter whites throughout your programming.
240Hz Refresh Rate
240Hz SPS Smooth Motion technology delivers 240 scenes per second, producing an enhanced frame rate and delivering crystal-clear fast action scenes, free of motion blur.
Optimal Viewing in Any Light
No matter your lighting arrangement, you'll always have the best picture possible thanks to built-in ambient light sensing technology. The M3D420SR automatically adjusts backlight levels based on its surroundings to optimize levels. The result is a balanced picture that will never appear washed out or too bright.
VIZIO Internet Apps
Easily connect to the Internet and stream movies and TV shows, listen to music and get the latest news, sports and weather. The M3D420SR connects wirelessly over an 802.11n Wi-Fi connection (or via a built-in Ethernet port if you'd prefer) to your home network. Once you're set up, you'll enjoy access to Internet content such as Amazon Instant Video, Netflix, and VUDU for streaming TV shows and movies; Pandora Internet Radio for discovering new music; your favorite social networking apps like Twitter or Facebook; photo-sharing services like Flickr and Picasa; and the latest news from the Associated Press and The New York Times. With a simple Internet connection, you'll get all that and plenty more.
Four HDMI Ports
Four HDMI ports accommodate your home theater setup, Blu-ray Player, gaming console, and satellite or cable TV, for a wealth of Full HD entertainment. These also feature the HDMI 1.4 spec Audio Return Channel, meaning you can send audio back to your home theater receiver on the same cable, rather than using the separaate S/PDIF output.
Spectacular Surround Sound
Treat yourself to an audio experience to match that HD video. StudioSound HD provides immersive surround sound over stereo speakers, complete with deep bass and crisp high-frequency details. It also effectively levels abrupt volume fluctuations, to deliver crystal-clear dialogue throughout programming. The end result is a complete and truly engaging theater-like experience over the built-in stereo speakers.
Exceeds ENERGY STAR 4.2 Guidelines
This HDTV takes it easy on the energy consumption, exceeding ENERGY STAR 4.2 Guidelines so your energy bill and the planet are both better off.
In addition, this display's backlight is more than other backlighting methods, since LED edge lights do not utilize mercury, an harmful substance.
One-Year Warranty
VIZIO offers a one-year limited warranty on parts and labor for this HDTV, for some added peace of mind.
M3D420SR Select Specifications
| General | |
|---|---|
| Display Size (Diagonal): | 42-Inch Class (42.02 Inches Viewable) |
| Backlight Type: | Edge-Lit Razor LED |
| Resolution: | 1080p |
| Dynamic Contrast Ratio: | 100,000:1 |
| Refresh Rate: | 240Hz SPS |
| Response Time: | 5 ms |
| Channels/Speaker Output: | 2 x 10W |
| Input/Outputs | |
| HDMI with HDCP: | 4 |
| Component Video (YCrCB): | 1 |
| Composite Video: | 1 |
| PC Input: | 1 |
| RF Connector for Internal Tuner: | 1 |
| USB 2.0: | 2 |
| Optical Digital Out (SPDIF): | 1 |
| Analog Audio Output: | 1 |
| Weight | |
| With Stand: | 37.5 lbs. |
| Without Stand: | 31.8 lbs. |
| Dimensions | |
| With Stand: | 39.9 x 26.5 x 9.6 Inches (W x H x D) |
| Without Stand: | 39.9 x 25.0 x 1.2 Inches (W x H x D) |
What's in the Box
VIZIO M3D420SR 42-Inch 1080p LCD TV, Stand/Hardware, Two Pairs 3D Glasses, Remote Control With Batteries, Documentation
Customer Reviews
*** Product Information and Prices Stored: Mar 12, 2012 00:38:45
- rubbing alcohol (aka isopropyl alcohol)
- distilled water (not tap water!)
- A soft cloth (lint-free)
* Steps
1. Dilute the rubbing alcohol into a mix with about 50% alcohol and the rest distilled water.
2. Pour this solution into a spray bottle. Old Windex bottles are good as they spray in a mist pattern with just the right whole to get good coverage on your screen. The spray bottles that squirt a particular stream tend to drip solution all over the place.
3. Spray the mix onto a soft lint-free cloth. Old t-shirts and microfiber car wash cloths are both good choices. Large cloths are good since it helps to sell out the risk of leaving streaks on the screen from too much pressure.
4. Slowly wipe the cloth on the screen in a circular consistent motion. Apply even pressure to the cloth and be meticulous not to push too hard, or scrape the screen with your fingernails!
* Suggestions
- precious products that you buy at the "computer screen cleaning" aisle of your local computer store include the same basic ingredients of alcohol and water! Some even include other harmful chemicals such as ethylene glycol, which may be ok on older glass Crt monitors, but should Not be used on Lcd screens! Some of the extra chemicals can also be harmful to the environment and to your health.
- Be sure to use Mineral water! Not tap water; you don't want hard mineral spots on your screen.
- Don't use tissue paper; they will leave lint and spots of paper stuck to your monitor. Also they're too thin, risking damage from your fingernails poking through.
- Don't apply too much solution. If you do, just wipe it off with the cloth and use less.
- You can also use lint-free lens wipes from photography stores, but they're thinner so be meticulous about your fingernails poking through.
- For a cheap ready-made solution from the store, you can also use Cd/Dvd cleaner, It's already designed to be plastic-safe, and is a simple solution of about 50% isopropyl alcohol.
* Some Precautions
- Don't use Windex or other glass cleaners! These include ammonia, which is ok for glass, but Will hurt your Lcd screen!
- Try not to use the verily cheap paper towels, like the tough brown ones in group washrooms. They can scratch your screen.
- Be sure to shut down your computer and your monitor, then unplug from the wall. This reduces the risk of electric damage in case you spill some of the solution on components.
- Don't drink isopropyl alcohol! It's toxic!
- If you aren't sure, you can test a small corner of the screen first.
Follow the steps and suggestions above, and your trusty Lcd monitor should give you years of clean, clear, trouble-free service.
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