Samsung Lcd TV Repair:
Diagnosing and Fixing A Samsung Lcd TV With No Picture
• Problems can often occur with even relatively new Samsung LCD TVs. Some customers report their screen going black shortly after turning on the television, even though the TV's speakers continue to produce sound. You can test and rule out a number of things before concluding that your TV has a hardware defect.
First, check the input settings of your television. Often, users will experience a dark screen when first turning on their television if the selected input corresponds with a turned-off or unplugged input, such as a gaming system or DVD player. If the problem persists, try reconnecting all cables on the back or sides of the television. It's possible that one of your cables has gone dead. If you have access to other cables, try swapping these in and see if the problem persists. Some customers report that turning the television off and unplugging it for an extended period of time, up to 24 hours, can fix the black-screen issue.
Power Supply Issues
• If you've tried all of these suggestions and problems persist, it's possible that the power supply inside the television is defective or broken. The power supply for most Samsung LCD televisions will cost around $150, with labor costs of around $250. Unless you have a fair amount of TV repair expertise, this is probably not the sort of repair you'd attempt yourself. Also be aware that occasionally, especially with older television models, we have all parts in stock.
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The History of the Samsung Lcd: 
When Samsung Electronics started the LCD business in 1991, Japanese LCD manufacturing companies had most LCD-related technologies while dominating the display market. The Japanese had a painful memory of the semiconductor business when Korean companies surpassed them. That is why they did not want to follow the same path again. Japanese were very cautious about protecting their LCD technologies, and Samsung had to develop on their own.
In early 1990s, Samsung Electronics had experienced difficulty due to high cost and low manufacturing rate. However, Samsung started to mass produce LCD panels in 1995. After 1997, Samsung produced LCD panels with their own technology and size, creating demand in the LCD market. While Japanese companies reduced investments due to a bad economy, Samsung put more investment to catch up with Japanese competitors. Samsung succeed in 12.1-inch and 14.1-inch display standardization and it became a stepping stone to overcome Japanese technology. In 1998, Samsung beat Japanese in 10-inch and above LCD models in sales numbers. In 2002, Samsung became the No. 1 LCD manufacturer in the world in sales. Since then, Samsung has been No. 1 for 7 years. Samsung now has over 25% of the LCD market in the world with the biggest manufacturing facility and advanced technology.
Samsung Electronics’ TVs and display products have undergone a race toward ever-slimmer panels. In 2009, the company succeeded in developing the super-slim panel for 40-inch LED TVs, with the thickness of 3.9 millimeters (0.15 inch). Dubbed the “Needle Slim,” the panel is as thick (or thin) as two coins put together. This is about a twelfth of the conventional LCD panel whose thickness is approximately 50 millimeters (1.97 inches).
While reducing the thickness substantially, Samsung could maintain the performance as before, including full HD resolution, 120 Hz refresh rate, and 5000:1 contrast ratio. In October 2007, Samsung broke the 10-millimeter barrier by introducing the 10-mm thick 40-inch LCD TV panel, followed in October 2008 by the world’s first 7.9-mm panel. Samsung is leading the industry by developing panels for 24-inch LCD monitors (3.5 mm) and 12.1-inch laptops (1.64 mm). According to Samsung officials, the biggest factor in reducing the panel thickness was the LED backlight. They are optimistic that their company could cut TV width by 40 percent within two years from now Samsung Electronics have developed the world’s first 240 Hz LCD panel receiving ‘Gold Award’ in SID 2009. 240 Hz technology produces clear image without ghost effect by using innovative algorithm. Traditional 60 Hz TV has 60 images per second, but by producing 3 artificial images in between each image, Samsung created clearer and crisper 240 Hz LCD panel. In order to send 4 times more images than 60 Hz display, 240 Hz display needs 4 times more recharging and data transfer rate. It was considered as the limit for LCD, but Samsung Electronics overcame the problem with over 20 years of experience in display technology. The other innovative LCD development includes LCD panel using blue phase liquid crystal, and 82-inch LCD with ultra definition (3,840x2,160 resolution), and printable oxide TFT LCD, leading display market.
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