Archive for March, 2008
Magnavox - Laptop Hardware Repair
A laptop is essential for students and working individuals. Because of its portability, users can write important papers, connect to the Internet via wireless modems, and can even watch movies anytime and anywhere. But without proper care, this machine can break down, and especially, there can be problems with the LCD monitor. Here are some tips that can help you in troubleshooting your laptop’s LCD monitor.Is there something wrong with your screen? If this is so, then there is a possibility that the LCD (liquid crystal display) backlight of your laptop is broken. The LCD backlight is the source of light that gives you a clearer visual of your screen. Symptoms of LCD damage include:- Dim laptop LCD- Flickering screen- Faint images on your LCD- No video image- Faded laptop LCDA laptop backlight is composed of four parts and these are:- Laptop inverter- LCD lamp- Inverter cable- Toggle switchDamage to any of these parts may result to the symptoms stated above. Unfortunately, there is no other way to be sure if one of these parts are damaged without using a tester. Some of the main causes of damage to these parts include age and excessive use of your laptop. Parts such as the LCD lamp usually last for two years minimum.Aside from the blacklight, it is possible that your LCD screen itself is damaged. This problem can be very serious because the LCD is the most fragile and expensive part of your laptop. Symptoms of LCD damage include:- Decolorization of your screen- Appearance of stripes or lines on your screenLCD damage is usually caused by hard impacts to your laptop. Remember, the LCD is a very sensitive and fragile piece of equipment. Even the slightest amount of pressure on your LCD can cause it to break.The only way to repair the backlight and the LCD monitor is to replace them. Replacing the LCD monitor alone can cost you around $250 and that is apart from the $120 service fee that most laptop repair companies charge.Laptop Repair provides detailed information on Laptop Repair, Laptop LCD Repair, Laptop Hinge Repair, Laptop Repair Manuals and more. Laptop Repair is affiliated with Used Laptops.Article Source: http://EzineArticles.com/?expert=Seth_Miller
| Posted by admin on Mar 04 2008
Magnavox - An Introduction To LCD Projectors
A projector is an apparatus for presenting an enlarged image on a screen from a transparency such as a photographic slide or a film. In a motion picture projector, each frame is held stationary at an illuminated aperture for a brief period, and then advanced by an intermittent sprocket or reciprocating claw, the light being cut off by a rotating shutter during the movement. The sound track on the film is reproduced at a separate sound head where the film is moved continuously at a constant speed.LCD projectors come with the capacity to deliver high-definition pictures with high pixel density. Most of the LCD projectors are compact and lightweight; most of the advanced LCD projectors even use two-inch poly silicon panels. These panels (an advanced LCD projector might have TFT panels) help to produce high-quality images with a high-definition quality of about 1,000 scanning lines.Most of the ordinary and average LCD screens have a screen ratio of 4:3. However, in some cases, an LCD might also have a screen ratio of 16:9. Images are projected on to a super-large screen. Some of the salient features of a compact, lightweight LCD projector are:1. The utilization of three high-definition two-inch poly silicon TFT LCDpanels are key elements in the production of the three RGB basic colors.2. Images of high ratio contrast are produced. Usually the image contrast is 400:1.3. A good LCD projector adds to the normal brightness by about 40% over most other conventional and ordinary LCD video projectors. These LCD projectors use a high-transparency LCD panel for the above purpose.For example, one of the recent high-quality LCD projectors is the Fujitsu LPF-D711 high-definition LCD projector for home theater.Projectors provides detailed information on Projectors, LCD Projectors, DLP Projectors, Video Projectors and more. Projectors is affiliated with DVD Projector Rentals.Article Source: http://EzineArticles.com/?expert=Elizabeth_Morgan
| Posted by admin on Mar 04 2008
