You've all heard it, that dreaded 60Hz hum through the speakers of a home theater or house audio system. Hopefully you heard it at a friend's house and not your own. It can drive you fully nuts. You may have even tried, unsuccessfully, to fix the tiny noise problem. That can make you even more crazy. What causes that horrendous noise through your speakers?
More often than not humming through your speakers is caused by a grounding problem. There are three main ground problems that cause problems in an audio / video system. These are ground loops, improper grounding and lack of a ground altogether. The other potential culprits that can cause noise are bad cables, a faulty piece of equipment or electrical noise from a lighting dimmer or galvanic motor. There are steps you can take to troubleshoot the noise and eliminate it from you theater.
Panasonic Plasma Tv Problems
The first step is find out where it is advent from. Disconnect your source and display equipment from your receiver or surround sound processor. If the noise stops, join together them back to the receiver or processor on at a time until the noise returns. When the hum comes back, you found where the noise is entering your system. Note that if you are connecting remote equipment, such as running the signal from your theater room Dvd player to the Tv in the bedroom, your chances to pick up noise increase dramatically. With such long runs, noise can be induced into the long cable runs from adjacent electrical wiring. It is also easy to originate a ground loop, because the equipment is plugged into two different, widely separated outlets, on distinct electrical circuits.
LG Infinia 50PZ750 50-Inch 1080p 600 Hz Active 3D THX Certified Plasma HDTV with Smart TV Best
Rate This Product :
LG Infinia 50PZ750 50-Inch 1080p 600 Hz Active 3D THX Certified Plasma HDTV with Smart TV Feature
- Bring your content alive with full 1080p HD 3D technology
- THX 3D Display certified ensuring you're bringing an uncompromised 3D HD experience home
- Smart TV allows you to access limitless content, thousands of movies, customizable apps, videos and the best of the web all organized in a simple to use interface
- The 600Hz Sub Field Driving virtually eliminates motion blur
LG Infinia 50PZ750 50-Inch 1080p 600 Hz Active 3D THX Certified Plasma HDTV with Smart TV Overview
Don't apologize for wanting everything from a TV. Get it, and a lot more, with the PZ750 3D 1080p Plasma TV from LG. Feast your eyes on a THX-certified 3D picture that will bring you your entertainment like never before. Enjoy deeper blacks that bring the picture to life with the TruBlack Filter, and get so much more from so much less with the stlyishly slim Infinia design.LG Infinia 50PZ750 50-Inch 1080p 600 Hz Active 3D THX Certified Plasma HDTV with Smart TV 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. | |
(June 2011)
LG 3D 1080p Plasma TV
LG Infinia PZ750 1080p active 3D TV features THX 3D Display certification ensuring you're bringing an uncompromised 3D HD experience home. In addition to your cable TV, stream video from services like Netflix, Vudu and the best of the web all organized in simple to use interface. The Magic Motion remote is easy to use, with intuitive point-and-click control and just five buttons. LG's 2D-to-3D conversion feature can turn everything from cinema classics to sports to your TV favorites into larger-than-life 3D. Enjoy a vast array of entertainment like HD movies, HDTV shows and more—all on an incredibly slim design TV.
Customizable Dashboard.
We put all your LG Smart TV entertainment—from apps to streaming video to live TV—all in one place, and just how you want it.
ACCESS UNLIMITED CONTENT FROM:
- CinemaNow
- Vudo
- DivX TV
- faebook
- NETFLIX
- Picasa
- Google Maps
- amazone video on demand
- vTuner
- MLB.TV
- AP
- YouTube
- AccuWeather.com
- napster
ADDITIONAL FEATURES
- The third dimension.
- Bring your content to life with full 1080p HD 3D technology! The astonishing effects will immediately grab your attention and bring your entertainment experience to the next dimension.**
- THX Certified.
- You don't have to take our word for it that this is an amazing TV. To earn THX 3D Display certification, our TVs passed more than 30 rigorous tests, ensuring you're bringing an uncompromised 3D HD experience home—just like the director wanted it.
- Entertainment on tap.
- NetCast Entertainment Access brings a multitude of Internet services direct to your TV—no computer required. Instantly access movies and TV shows, news and weather and the world's largest library of HD movies in 1080p.***
- Cut loose when you're Wi-Fi Ready.
- Getting your LG TV connected to NetCast Entertainment Access and other online content is easy when you are Wi-Fi Ready. If you have existing wireless broadband, setting it up is simple and you don't need to worry about messy wires.
- Double the detail.
- This stunning picture is the reason you wanted HDTV in the first place. With almost double the pixel resolution, Full HD 1080p gives it superior picture quality over standard HDTV. You'll see details and colors like never before.
- Make digital devices compatible.
- To build a digital network, you need digital devices. That's obvious. But unless those devices are compatible, it won't be much of a network. DLNA Certified devices work together.
- Save more than energy.
- Earning the ENERGY STAR means a product meets strict energy efficiency guidelines set by the US Environmental Protection Agency and the Department of Energy. For TVs, it means they save energy both in standby and active (when they're on) modes. ENERGY STAR qualified TVs use about 30% less energy than standard units.
- Find the perfect picture.
- Get easy self–calibration with on–screen reference points for key picture quality elements such as black level, color, tint, sharpness and backlight levels. Take the guesswork out of picture adjustments with this simple–to–use feature. It's not actually magic, but it will sure seem that way.
- View it in the right light.
- Let your TV do the adjustments for you. Intelligent Sensor automatically optimizes the picture to the lighting and color conditions in the room for a more enjoyable viewing experience.
- Wise and not wasteful.
- With our Smart Energy Saving Features, you can conserve money and energy.
- ISFccc ready.
- LG's ISFccc Ready HDTVs contain the detailed standards necessary for professional calibration of brightness, contrast, tint, sharpness, color levels and much more to meet local lighting conditions for both daytime and nighttime viewing. Settings are added to preset modes for easy access from your LG remote.
* Wireless Internet connection & certain subscriptions required and sold separately. The Magic Motion Remote does not come equipped with all LG Smart TV enabled products and a separate purchase may be required. The Hulu Plus service is projected to be available via a firmware update in June 2011. The LG web browser does not support Flash 10 or HTML 5, therefore, access to certain web content may be limited or unavailable. Content & services vary by product and are subject to change without notice.
Major League Baseball trademarks and copyrights are used with permission of MLB Advanced Media, L.P. All rights reserved.
** For a small percentage of the population, the viewing of stereoscopic 3D video technology may cause discomfort such as headaches, dizziness or nausea. If you experience any symptoms, discontinue using the 3D functionality and contact your health care provider. 3D glasses required and sold separately.
***Internet connection & subscriptions required and sold separately.
LG 2011 Plasma Feature Comparison
| Series | PZ950 | PZ750 | PZ550 | PW350 | PV450 | PT350 |
|---|---|---|---|---|---|---|
| Models: | 50", 60" | 50", 60" | 50", 60" | 42", 50" | 50", 60" | 42", 50" |
| High Definition Resolution | 1080p | 1080p | 1080p | 720p | 1080p | 720p |
| LG Smart TV/NetCast | LG Smart TV | LG Smart TV | NetCast | |||
| TruBlack Filter |  | |||||
| THX 3D Certified Display | | | ||||
| 600Hz Max Sub Field Driving/600Hz Sub Field Driving | 600Hz Max | 600Hz Max | 600Hz Max | 600Hz | 600Hz Max | 600Hz |
| Contrast Ratio | 5,000,000:1 | 3,000,000:1 | 3,000,000:1 | 3,000,000:1 | 3,000,000:1 | 3,000,000:1 |
| Magic Motion Remote | | | ||||
| Wi-Fi Ready | | | | |||
| DLNA Certified | | | | |||
| 3D Ready | | | | | ||
| 2D to 3D Conversion | | | | | ||
| TruSlim Frame | | | | | | |
| ENERGY STAR Qualified | | | | | | |
| Intelligent Sensor | | | | | | |
| Picture Wizard II | | | | | | |
| Smart Energy Saving | | | | | | |
| ISFccc Ready | | | | | | |
| HDMI/USB | 4.2 | 4.2 | 4.2 | 3.1 | 3.1 | 3.1 |
Customer Reviews
*** Product Information and Prices Stored: Mar 02, 2012 16:27:42
If the noise is caused by a cable box, the noise is likely caused by the cable Tv ground. To test this theory, disconnect the incoming cable Tv feed to the rear of the cable box or Tv while they are still related to the rest of the system. If the noise is eliminated by disconnecting the Tv cable, the problem is the cable Tv ground. You can electrically decouple the cable Tv feed from your theory with a ground breaking transformer. These are ready from many sources. Be advised that many newer, digital cable Tv systems require any gadget in the signal chain to pass a full 1,000 Mhz. Some of the older ground break transformers will not do this. Be sure to check the specifications of whatever gadget you are purchasing to verify it will pass the digital cable Tv signal.
If the noise is from your projector, Tv, or monitor, it is most likely caused because the video display gadget is plugged into a distinct outlet than the other a/v equipment. It could be on a distinct circuit as well. These circuits may have two distinct ground potentials. That is, the resistance to ground is distinct on each circuit. A unlikeness in resistance to ground from one ground point to other can cause the dreaded ground loop. If you get a ground loop, current flows between the two components. If the current flows through the components internal audio signal ground, you will get a hum.
You can use an isolation transformer, similar to the type used for cable Tv ground problems, to eliminate the electrical relationship from one component to the other. These transformers are inserted in line with the audio signal relationship between the two components. If there is no audio relationship between the components, the problem may be current flowing through the video portion. In this case, a video isolation transformer should be used to eliminate the ground loop.
Sometimes power conditioners will stop noise problems by placing equipment on different, electrically isolated outlets. This is done using isolation transformers. Sometimes this is ineffective however, due to the differences in internal building of distinct power conditioning equipment. Some security regulations, such as Ul 1950, specify that an isolation transformer is only allowed to separate the hot and neutral wires; the grounding wire must be passed straight through. If this is the case, the ground loop problem may still exist because many transportation circuits are related to the grounding conductor and not the neutral. In this case, the isolation transformer, or any power conditioner or Ups with an isolation transformer will have undoubtedly no work on on the grounding problem.
The noise may be generated externally, from a dimmer or refrigerator compressor for example, and advent in through the main power input on the audio video equipment. In this case, a high capability power conditioner may be productive in reducing or eliminating the noise problem. You may also find that one of the signal interconnecting cables in your theory is faulty. This can also cause noise problems. Check for this by swapping the cables with one that you know to be good.
You can solve most noise problems in your home theater or multi room audio/video theory by taking the systematic, step-by-step approach. Work your way up the signal chain, eliminating each piece of equipment as you go. If you have nothing related to your speakers except the speaker wiring, and they still hum, the problem is noise induced into the speaker wiring from adjacent power cables. Other than that case, most problems are caused by ground problems, which you can find, and solve, if you take it one step at a time.
Eliminating that Terrible Hum From Your Home Theater SpeakersSamsung PN43D490 43-Inch 720p 600Hz 3D Plasma HDTV Reviews Tube. Duration : 0.67 Mins.Click Here Now : goo.gl and check out the great saving and fantastic bargains on the Samsung PN43D490 43-Inch 720p 600Hz 3D Plasma HDTV Reviews Here Now : goo.gl
Keywords: panasonic plasma tv, best plasma tv, samsung plasma tv, lg plasma tv, lcd vs plasma tv, plasma tv ratings, 50 inch plasma tv, 60 inch plasma tv, 65 plasma tv, 60 plasma tv, plasma tv reviews, 42 plasma tv, 40 plasma tv, plasma vs lcd, plasma tv problems, plasma tv deals, 37 inch plasma tv, largest plasma tv, best 50 plasma tv, samsung tv, lcd tv, lcd or plasma tv, plasma tv review, plasma tv prices, philips plasma tv, lg 60 plasma tv, pioneer plasma tv, samsung 42 inch plasma tv, plasmas
No comments:
Post a Comment