Television is a modern household electrical appliance that only emerged. The emergence of televisions satisfies people's entertainment methods in their leisure time and relieves work pressure. At the same time, the emergence of television has led to the development of the entertainment industry, allowing more stars to appear in people's time. In fact, there are many brands of televisions, whether it is domestic brands or foreign brands are growing faster and faster. From the beginning of the black and white TVs to the current LCD TVs, they have only experienced decades of development.
What TVs are you buying now?
Today's televisions are powerful and have a lot of technical styles. They are really unique and they say that choosing what is good is really a prop problem.
The first is the use of premises, which is used at home and in the living room. This decision will select the appropriate TV size.
The second is the source of the television signal. If this decision is made to choose a digital TV, and if it is connected to the Internet, then TVs with "cloud" function keys can also be selected.
The third is the high cost performance required. This decided to choose domestic, Haier, Hisense, TCL trump card, Konka, Changhong, Skyworth, have to be cost-effective goods.
Fourth, the brand, the brand in mind, gives psychological comfort.
In a typical family, the living room will not be too large. If the distance from the seat to the TV is 4 meters, choose 32-35 inches. With an interval of 6 meters, you can choose 42 inches. Choose normal function TV, not 3D effect, do not cloud function, in short, look at those functions are not commonly used, spend money is to buy it, it is unnecessary.
Buy TV need to pay attention to those aspects?
The need to pay attention to buy a TV
1. The screen needs to select the size and type of the TV screen according to its own needs. The TV is used to watch TV. Therefore, it is very important that the screen is good or bad.
2, the interface
USB interface and HDMI are common, but USB3.0 and HDMI2.0 are faster.
3, CPU
The CPU processor is the ** of the smart TV, which directly affects the operating speed of the system. So far the highest is the quad-core.
4, people who like to watch the game of dynamic screen technology will be very concerned about this feature, there is no dynamic picture processing chip TV often appear tailing phenomenon.
5, memory and flash memory is used to store video music and other files, memory is used to store the user's data information.
6, energy efficiency The average family watch television for a long time, so that when buying a TV must consider the power-saving factor.
7, remote control remote control is best to use the standard, and when buying to check whether the mute key arrow keys such as the number keys are sensitive.
Basic knowledge of buying LCD TVs:
1, the screen maximum physical resolution: two, 1366 * 768 and 1920 * 1080, the former support 720P format, known as the standard high-definition, see ordinary digital TV programs and DVD sufficient, cheaper; latter support 1080P format, known as Full HD, use Blu-ray DVD and high-definition digital TV, more expensive. According to their own needs and budget to decide what resolution to buy. To achieve high-definition and full-HD effects, TVs, players, transmission methods, and signal sources must meet high-definition standard formats at the same time. For example, full-HD 1920*1080 TV screens and Blu-ray DVDs and Blu-ray discs in the same resolution format are also required. Film to see full HD effects. If several resolutions are inconsistent, they can be viewed, but the resolution is based on the lowest resolution. When a flat-panel TV is connected to a computer, since the resolution of the graphics card on the computer is mainly compatible with the display, and the resolution standard of the television is different, the non-professional graphics card does not have the high-definition format of the television, so this case is put on the computer. 1366 * 768 or 1920 * 1080 high-definition video, the TV can not reach the point-to-point display. Any signal that does not meet the resolution of the screen, the TV will automatically display by full screen algorithm.
2, screen dynamic response time: the impact of dynamic image smearing, the best screen is 5 milliseconds, the price is higher than the average 18 millisecond screen, in fact, is not a professional looking professional image, 18 milliseconds of the human eye has Can't distinguish between tails. Now popular frequency multiplier technology to improve the quality, in the final analysis is to make up for the lack of screen performance, in fact can reach 5 millisecond screen, it does not need any compensation. LG's IPS hard-screen LCD screen, the theoretical dynamic response time is shorter, in fact, human eyes can not distinguish between the time difference of the millisecond level. For the screens of these kinds of situations, the scene should pay attention to comparison.
3, brand: mainly depends on the screen manufacturers, in fact, the screen manufacturers and suppliers are not many, mainly Sharp and Samsung, is the world's largest LCD screen manufacturers, their entire machine is recognized in the industry first-class, leading product trends . LG machine in the imported joint venture products in the relatively cheap price, 42-inch is its unique size, Sharp Samsung's soft screen are 40 inches. The 42-inch Chinese-made machine is basically the use of LG's imported screen, it is better to buy LG's original joint venture products. Domestic machines are all assembled with imported screens and core technologies. It can be said that the products are put together. Therefore, the stability of the whole machine is a little poorer, but the price is cheaper. The cheaper machines use Taiwanese screens and their performance is not very good. Domestic machine brand or professional TV manufacturers, such as Hisense, Skyworth, etc., the assembly quality is relatively stable.
4, LED backlight source undefinedED backlight LCD TV uses LED light-emitting diode as backlight source, it has five advantages than cold cathode fluorescent tube backlight: First, ultra-wide color gamut, can reach 105% NTSE color gamut, so the color is more Brightly colored. Second, ultra-thin appearance, the thinnest to 1.99 cm, more stylish. Third, energy conservation and environmental protection, energy consumption 52% lower than the cold cathode backlight, and there is no ** pollution of the cold cathode tube. Fourth, long life, reaching nearly 100,000 hours, open 10 hours a day, then you can use 27 years. Fifth, can achieve ultra-high contrast ratio of 100000:1, higher definition. The above performance advantages determine that the LED backlight source is technically a substitute for cold cathode backlight sources. The current market price is basically 150% of the cold cathode backlight source products. The LED backlight itself has no choice, and the main choice for the whole machine is the selection of the technical performance parameters of the LCD panel, such as the maximum physical resolution, dynamic response time, etc., which are the same as ordinary LCD TVs.
5, screen width: Now flat-panel TVs are 16:9 widescreen, and the TV signal is still 4:3, so use the ratio of 16:9 to put a horizontal stretch, used to be just fine, too It can be adjusted to 4:3, but there are black borders on both sides of the screen. When buying, please pay attention to the size of the screen according to the viewing distance, about 2 meters to buy 32-inch, 2.5 meters to buy 37-40 inches, 3 meters or more to buy about 50 inches. Because it is a widescreen, the screen height of a 32-inch machine is equivalent to 29 inches for a vintage CRT TV.
6, on the plasma: plasma screen is the pixel itself light, no liquid crystal tailing phenomenon, sensory effect is better than the liquid crystal. However, because the physical size of the plasma pixel is larger than that of the liquid crystal, the small screen is not suitable for full HD resolution, but the 50-inch or so size has no problem at all. Therefore, the large size should be preferred for plasma, and the large-size plasma is also cheaper than the LCD. . Originally the largest plasma manufacturer in the world was Hitachi, and Changhong cooperated with it to build its own plasma screen production line. Therefore, plasma TVs from Changhong are the first choice for national products. Hitachi's plasma screen business is now sold to Panasonic, so the preferred plasma for imported joint ventures is Panasonic.
7, on the U disk and the Internet: the TV on the USB interface is not high compatibility, home computer, you can easily connect the TV, you do not need U disk interface. Internet TV is not like a computer can roam the Internet, just a fixed site designated by the manufacturers, download some video and other resources, there is no need for computers. Not all of these functions are manufacturers' gimmicks. The inherent performance of the TV itself has not changed fundamentally.
What's going on inside the TV? The reason why the TV keeps ringing is:
1, TV internal circuit load is too large or transformer core does not stick firmly lead to inductance or the core of the transformer vibration sounds;
2. The internal circuit of the television sets is affected by the leakage of electricity;
3, the internal circuit of the television set fires the sound of the ignition and emits the smell of ozone;
4. The noise emitted by the leakage of the TV's kinescope base;
5, if the loud noise does not affect the normal use, you do not need to bother, if the situation seriously affects the use of the proposed TV contact after-sales service on the TV for a comprehensive inspection, warranty.
The TV suddenly has no image. The general reason why the TV suddenly has no image is as follows:
1. The sudden disconnection of the TV's power connection results in no image. If the plug is loosened, the power is turned off at home, or the TV's power switch is in trouble, it needs to be checked one by one and you can return to normal.
2. If the indicator of the TV is on and there is no image, you can check whether the TV has pressed the standby button of the remote controller in the standby mode. You can press the standby button again to exit the standby mode and restore the screen.
3. If there is no image by pressing the standby button, it may be whether there is a problem with the signal source input of the TV. Check whether the connection lines between the TV and the TV signal cable, set-top box, DVD player, etc. are faulty, and connect it correctly again. Back to normal.
4, if the above method still has no image after the investigation, you can generally determine the TV hardware failure, such as switch circuit failure, display or kinescope failure, internal circuit failure, etc., it is recommended to contact the TV service to repair and solve.
What is the TV splash?
TV splash screen causes and methods:
1. There is a problem with the input source of the TV, which can cause the screen to flicker. Generally, you can check whether the connection between the TV and the cable TV, set-top box or DVD player is loose. Generally, it can be correctly connected and fixed.
2. There are other signal interference sources around the TV that cause the splash screen. You can find the interference source and remove it. The interference sources are high-power induction cookers, electric fans, and refrigerators.
3, TV hardware problems cause splash screen, including screen faults, cable faults, internal circuit failures, motherboard and component failures, etc. It is recommended to contact the TV after-sales service to repair the TV.
The color of the TV is abnormal. What is the problem?
First, there are many reasons why the colors of televisions are not normal. If it is the color of the TV set as a whole, the overall picture looks a lot of color, then there may be problems with the TV's three primary color channels. If only the color of the TV is partially localized, it may be that the TV is degaussed. LCD TVs have degaussing circuits. Be careful, and sometimes the geomagnetism of the TV can cause the TVs to have abnormal colors. So always pay attention to the placement of the TV.
Second, there is a TV color is not normal because of the artificial adjustment, that is, the brightness of the TV is set to a relatively dark color, the color is completely turned off to black and white and then adjust the base level of the two colors. This kind of problem is very simple, what color is more than what color, mainly red or blue, it is adjusted to white. Finally, set the brightness of the TV to the brightest, and adjust the two colors to drive the tuning is the same, but it may lack a color. It should be noted that if it is a TV lack of color, this time it is necessary to ask professional maintenance personnel to adjust the color of the TV.
Third, if the color of the TV is not normal, usually if it is its three basic moral issues, it will open the back cover of the TV. Generally there is a circuit board on the back panel of the kinescope. It is easy to find five potentiometers on this side. Normally, it should be like this: There are mainly two color drives and three color base level adjustments. Exact adjustments are fine here. If the TV color is partial color cast, color TV has degaussing circuit, this time when the boot automatically starts, repeated switching several times can solve the problem, if not, which is caused by the geomagnetic effect, then change the direction of the TV may Can solve the problem.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
Today's televisions are powerful and have a lot of technical styles. They are really unique and they say that choosing what is good is really a prop problem.
The first is the use of premises, which is used at home and in the living room. This decision will select the appropriate TV size.
The second is the source of the television signal. If this decision is made to choose a digital TV, and if it is connected to the Internet, then TVs with "cloud" function keys can also be selected.
The third is the high cost performance required. This decided to choose domestic, Haier, Hisense, TCL trump card, Konka, Changhong, Skyworth, have to be cost-effective goods.
Fourth, the brand, the brand in mind, gives psychological comfort.
In a typical family, the living room will not be too large. If the distance from the seat to the TV is 4 meters, choose 32-35 inches. With an interval of 6 meters, you can choose 42 inches. Choose normal function TV, not 3D effect, do not cloud function, in short, look at those functions are not commonly used, spend money is to buy it, it is unnecessary.
The need to pay attention to buy a TV
1. The screen needs to select the size and type of the TV screen according to its own needs. The TV is used to watch TV. Therefore, it is very important that the screen is good or bad.
2, the interface
USB interface and HDMI are common, but USB3.0 and HDMI2.0 are faster.
3, CPU
The CPU processor is the ** of the smart TV, which directly affects the operating speed of the system. So far the highest is the quad-core.
4, people who like to watch the game of dynamic screen technology will be very concerned about this feature, there is no dynamic picture processing chip TV often appear tailing phenomenon.
5, memory and flash memory is used to store video music and other files, memory is used to store the user's data information.
6, energy efficiency The average family watch television for a long time, so that when buying a TV must consider the power-saving factor.
7, remote control remote control is best to use the standard, and when buying to check whether the mute key arrow keys such as the number keys are sensitive.
1, the screen maximum physical resolution: two, 1366 * 768 and 1920 * 1080, the former support 720P format, known as the standard high-definition, see ordinary digital TV programs and DVD sufficient, cheaper; latter support 1080P format, known as Full HD, use Blu-ray DVD and high-definition digital TV, more expensive. According to their own needs and budget to decide what resolution to buy. To achieve high-definition and full-HD effects, TVs, players, transmission methods, and signal sources must meet high-definition standard formats at the same time. For example, full-HD 1920*1080 TV screens and Blu-ray DVDs and Blu-ray discs in the same resolution format are also required. Film to see full HD effects. If several resolutions are inconsistent, they can be viewed, but the resolution is based on the lowest resolution. When a flat-panel TV is connected to a computer, since the resolution of the graphics card on the computer is mainly compatible with the display, and the resolution standard of the television is different, the non-professional graphics card does not have the high-definition format of the television, so this case is put on the computer. 1366 * 768 or 1920 * 1080 high-definition video, the TV can not reach the point-to-point display. Any signal that does not meet the resolution of the screen, the TV will automatically display by full screen algorithm.
2, screen dynamic response time: the impact of dynamic image smearing, the best screen is 5 milliseconds, the price is higher than the average 18 millisecond screen, in fact, is not a professional looking professional image, 18 milliseconds of the human eye has Can't distinguish between tails. Now popular frequency multiplier technology to improve the quality, in the final analysis is to make up for the lack of screen performance, in fact can reach 5 millisecond screen, it does not need any compensation. LG's IPS hard-screen LCD screen, the theoretical dynamic response time is shorter, in fact, human eyes can not distinguish between the time difference of the millisecond level. For the screens of these kinds of situations, the scene should pay attention to comparison.
3, brand: mainly depends on the screen manufacturers, in fact, the screen manufacturers and suppliers are not many, mainly Sharp and Samsung, is the world's largest LCD screen manufacturers, their entire machine is recognized in the industry first-class, leading product trends . LG machine in the imported joint venture products in the relatively cheap price, 42-inch is its unique size, Sharp Samsung's soft screen are 40 inches. The 42-inch Chinese-made machine is basically the use of LG's imported screen, it is better to buy LG's original joint venture products. Domestic machines are all assembled with imported screens and core technologies. It can be said that the products are put together. Therefore, the stability of the whole machine is a little poorer, but the price is cheaper. The cheaper machines use Taiwanese screens and their performance is not very good. Domestic machine brand or professional TV manufacturers, such as Hisense, Skyworth, etc., the assembly quality is relatively stable.
5, screen width: Now flat-panel TVs are 16:9 widescreen, and the TV signal is still 4:3, so use the ratio of 16:9 to put a horizontal stretch, used to be just fine, too It can be adjusted to 4:3, but there are black borders on both sides of the screen. When buying, please pay attention to the size of the screen according to the viewing distance, about 2 meters to buy 32-inch, 2.5 meters to buy 37-40 inches, 3 meters or more to buy about 50 inches. Because it is a widescreen, the screen height of a 32-inch machine is equivalent to 29 inches for a vintage CRT TV.
6, on the plasma: plasma screen is the pixel itself light, no liquid crystal tailing phenomenon, sensory effect is better than the liquid crystal. However, because the physical size of the plasma pixel is larger than that of the liquid crystal, the small screen is not suitable for full HD resolution, but the 50-inch or so size has no problem at all. Therefore, the large size should be preferred for plasma, and the large-size plasma is also cheaper than the LCD. . Originally the largest plasma manufacturer in the world was Hitachi, and Changhong cooperated with it to build its own plasma screen production line. Therefore, plasma TVs from Changhong are the first choice for national products. Hitachi's plasma screen business is now sold to Panasonic, so the preferred plasma for imported joint ventures is Panasonic.
7, on the U disk and the Internet: the TV on the USB interface is not high compatibility, home computer, you can easily connect the TV, you do not need U disk interface. Internet TV is not like a computer can roam the Internet, just a fixed site designated by the manufacturers, download some video and other resources, there is no need for computers. Not all of these functions are manufacturers' gimmicks. The inherent performance of the TV itself has not changed fundamentally.
1, TV internal circuit load is too large or transformer core does not stick firmly lead to inductance or the core of the transformer vibration sounds;
2. The internal circuit of the television sets is affected by the leakage of electricity;
3, the internal circuit of the television set fires the sound of the ignition and emits the smell of ozone;
4. The noise emitted by the leakage of the TV's kinescope base;
5, if the loud noise does not affect the normal use, you do not need to bother, if the situation seriously affects the use of the proposed TV contact after-sales service on the TV for a comprehensive inspection, warranty.
1. The sudden disconnection of the TV's power connection results in no image. If the plug is loosened, the power is turned off at home, or the TV's power switch is in trouble, it needs to be checked one by one and you can return to normal.
2. If the indicator of the TV is on and there is no image, you can check whether the TV has pressed the standby button of the remote controller in the standby mode. You can press the standby button again to exit the standby mode and restore the screen.
3. If there is no image by pressing the standby button, it may be whether there is a problem with the signal source input of the TV. Check whether the connection lines between the TV and the TV signal cable, set-top box, DVD player, etc. are faulty, and connect it correctly again. Back to normal.
4, if the above method still has no image after the investigation, you can generally determine the TV hardware failure, such as switch circuit failure, display or kinescope failure, internal circuit failure, etc., it is recommended to contact the TV service to repair and solve.
TV splash screen causes and methods:
1. There is a problem with the input source of the TV, which can cause the screen to flicker. Generally, you can check whether the connection between the TV and the cable TV, set-top box or DVD player is loose. Generally, it can be correctly connected and fixed.
2. There are other signal interference sources around the TV that cause the splash screen. You can find the interference source and remove it. The interference sources are high-power induction cookers, electric fans, and refrigerators.
3, TV hardware problems cause splash screen, including screen faults, cable faults, internal circuit failures, motherboard and component failures, etc. It is recommended to contact the TV after-sales service to repair the TV.
First, there are many reasons why the colors of televisions are not normal. If it is the color of the TV set as a whole, the overall picture looks a lot of color, then there may be problems with the TV's three primary color channels. If only the color of the TV is partially localized, it may be that the TV is degaussed. LCD TVs have degaussing circuits. Be careful, and sometimes the geomagnetism of the TV can cause the TVs to have abnormal colors. So always pay attention to the placement of the TV.
Second, there is a TV color is not normal because of the artificial adjustment, that is, the brightness of the TV is set to a relatively dark color, the color is completely turned off to black and white and then adjust the base level of the two colors. This kind of problem is very simple, what color is more than what color, mainly red or blue, it is adjusted to white. Finally, set the brightness of the TV to the brightest, and adjust the two colors to drive the tuning is the same, but it may lack a color. It should be noted that if it is a TV lack of color, this time it is necessary to ask professional maintenance personnel to adjust the color of the TV.
Third, if the color of the TV is not normal, usually if it is its three basic moral issues, it will open the back cover of the TV. Generally there is a circuit board on the back panel of the kinescope. It is easy to find five potentiometers on this side. Normally, it should be like this: There are mainly two color drives and three color base level adjustments. Exact adjustments are fine here. If the TV color is partial color cast, color TV has degaussing circuit, this time when the boot automatically starts, repeated switching several times can solve the problem, if not, which is caused by the geomagnetic effect, then change the direction of the TV may Can solve the problem.
Smart TV/box information can focus on smart TV information network sofa butler (http://), China's influential TV box and smart TV website, providing information, communication, TV boxes, smart TVs, smart TV software, etc. Answering questions.
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