What does the three-in-one cable mean?
This is a three-in-one 1 jumper (yellow, white and red).
One red and one white is an audio signal to save electricity, and one yellow is a video signal. These three plugs are usually connected to the TV. The other end is a 3.5 plug, which is generally connected to a set-top box.
There are many kinds of jumpers. For example, you can transmit computer signals to TV and display them on TV, so you need a patch cord.
Extended data:
There are three types of patch cord USB 3.0 interfaces: standard type A, standard type B and mini type B. Among them, standard type A is fully compatible with USB 2.0 devices, but the speed will be reduced after access, while standard type B is not backward compatible and is mainly used to connect peripherals.
Including AM to AM, AM to BM, AM to AF, AF to AF, AF to BM, AM to BF, AM to Micro USB3.0 and so on.
The maximum theoretical bandwidth of USB 3.0 is about 5.0Gb per second, but the actual data throughput may be close to 3.0Gb per second. In contrast, the current high-speed USB 2.0 provides the maximum bandwidth of 480Mb per second. So ultra-high-speed USB is about ten times faster.
USB 3.0 is an all-encompassing technical specification. Including low speed, full speed, high speed and ultra-high speed USB. Not all USB 3.0 devices must support ultra-high speed, just as not all USB 2.0 devices must support high speed. The power demand of ultra-high speed USB will be significantly reduced, which is an important improvement for products that use batteries. By reducing the speed of the host to poll each device, the power consumption of ultra-high-speed USB in standby state is expected to be close to zero.
What does the three-in-one cable mean?
That is to say, there are three lotus plugs with different colors at one end, one red and one white is the left and right power saving of audio signal, and the other yellow is the video signal. These three plugs are usually connected to the TV; The other end is a 3.5 plug, which is generally connected to a set-top box.
Is the TV motherboard the main component?
Safeguarding Rights —— An Important Part of TV "Three Guarantees Main Board"
Qiangxian, according to the three-guarantee policy, the motherboard is guaranteed for three years! ! ! As the core of the machine, the motherboard is equivalent to the human brain. It is definitely the "main component" and the "logical component" contained in it.
The following table comes from the General Administration of Quality Supervision, Inspection and Quarantine's Provisions on Incorporating Flat-panel TV Products into the Responsibility for Repairing, Replacing and Returning Some Commodities: The announcement on the adjustment scope (General Administration Announcement 20 1 1 No.20) is often used by manufacturers as a shield to reject the "main three guarantees" of TV sets!
Analysis of policy terms
Analyze the terms mentioned in the insurance policy one by one, and focus on understanding this logical component, so that Xiaobai can grasp the key points as much as possible and not be confused by the naming of the after-sales board.
Assembly refers to the assembly of parts in electronic or mechanical equipment to assemble the whole machine, parts or elements, or to assemble a group of elements together to form a functional unit. Some components can also be assembled with other components and parts to form a larger component. Logic is digital logic, the logic of processing digital signals and the principle of digital circuit operation. ? A circuit that performs arithmetic and logical operations on digital quantities with digital signals is called a digital circuit. Because it has the functions of logic operation and logic processing, it is also called digital logic circuit. Logic gate circuit is the most basic logic element in digital circuit. Logic gates can be composed of discrete components such as resistors, capacitors, diodes and triodes, and become discrete component gates. The connecting lines of all devices and gate circuits are made on the same semiconductor substrate, thus forming an integrated logic gate circuit. Logic gates are the basic components of integrated circuits. Three commonly used integrated logic gate series are transistor-transistor logic series, emitter-coupled logic series and complementary metal oxide semiconductor logic series.
Now let's explain [[[[[logical component]]]]. Literally, it refers to components with logical operation function. Any element in the circuit that uses a logic gate circuit belongs to a logic element, and does not refer to a certain board defined by the manufacturer-"logic board". The manufacturer has not authorized the TV hardware to designate the logical components listed in the Three Guarantees Policy as local components. It can only be said that the "logic board" is one of the "logic elements", and other circuit boards with logic operation function also belong to the logic elements.
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Simply put, a single chip on a circuit board can be called a logic element. Can search integrated logic gates, CMOS, TTL, etc. And those widgets you see can be called a logical component. Small logic elements such as chips are integrated on a large circuit board, which is a larger logic element.
The motherboard must be a "logical component". Is that clear enough?
Similarly, there is a driving assembly/backlight assembly. The driving part is the part that makes the plasma screen work, and the backlight is the part that makes the liquid crystal display, which corresponds to all the components that are combined to realize the basic functions of the screen. Everyone! ! ! The "main components" contained in the National Three Guarantees can be combined to realize the basic functions of the TV set, with no shell and no screws. This is the real meaning of "main components". The main components of a TV set are the components that combine to realize the basic functions of the TV set.
So don't need to know too much. (1) The high frequency coordinator receives the signal. (2) TV sets need power. For example, the power board must use power chips or other logic elements. (3) After receiving the signal, the TV will perform conversion processing on various boards. Even if it is an integrated circuit, it is bound to use logic elements. No matter whether the received digital signal or analog signal is difficult to bypass the use of the logic gate (4), then you can ask what is left, whether it is classified as driving or backlight. When he says that the screen is Barabara, it will be counted as the component that drives the screen to work. Don't listen to their nonsense about LED, LED high-voltage board or high-voltage board, and don't listen to their classification of high-voltage board. In this way, once there is a quality problem, the manufacturer basically can't shirk the three guarantees, and can't find any big charges.
One to three years in the three guarantees is a sensitive period. The "whole machine" is guaranteed for one year, and the "main parts" are guaranteed for three years, but except for the shell and screw wall hanging, the whole machine is almost the "main parts".
From the semantic point of view, the terms in the insurance policy can not be separated from the basic meaning of the words themselves, but should be explained from the basic meaning. As the core component of flat-panel TV, "motherboard" cannot be separated from the category of main components just because the manufacturer integrates it separately. What's more, the motherboard integrates a large number of logic circuits and belongs to the logic components among the main components. This should not be the main excuse for manufacturers to integrate logic circuits into the "motherboard" in recent years to avoid the responsibility of "three guarantees", and it encourages manufacturers to integrate more "motherboards" and try their best to integrate other functional circuit modules, so that the motherboard accounts for a larger proportion of TV costs, and the contents of "main components" are compressed into smaller, less and lower-cost components, which leads to greater after-sales losses for consumers and illegal after-sales high profits. ? The higher the integration of the motherboard, no matter which functional component is damaged, it can be considered as motherboard damage. Motherboards are the easiest to break down because they are all on the motherboards. Ordinary users can only listen to what he says is broken. Even if it is a little bad, you should change the whole motherboard. The motherboard is not guaranteed for 3 years. The higher the level of integration, the more maintenance costs (maintenance costs and materials are also calculated separately).
Judging from the basic rights and interests of consumers, it costs three or four thousand yuan to buy a TV. If it breaks down in a year or two, it will cost one or two thousand yuan to repair it, and you have to worry that it will break down again soon. What is the policy for such obvious damage to consumer rights and interests? The obvious quality problems, to some extent, have also promoted manufacturers to engage in N-in-one boards, and the fewer samples in form, the better. The bigger the motherboard, the bigger the profit margin when repairing, and the better the repair. A board can be replaced directly for you, and it will be the best after one year. Just kidding, the old color TV at home has been used for more than 14 years. This is the gap.
Three Guarantees Policy of Flat-panel TV and After-sale Confrontation of Enterprises
Provisions of the General Administration of Quality Supervision, Inspection and Quarantine on Including Flat-panel TV Products in the Responsibility for Repairing, Replacing and Returning Some Commodities >: Announcement on the Adjustment Scope (Announcement No.20 of the General Administration (20 1 1)) Before this announcement, many flat-panel TVs did not enjoy the TV warranty policy. TV producers generally refuse to evade the responsibility of three guarantees on the grounds that flat-panel TVs do not belong to color TVs, and most people silently accept it. Even after the publication of the document, consumers who bought TV in the previous year or two were rejected by some companies. At that time, the rise of flat-panel TV was not long, and the technology may not keep up for a year or two. There are a lot of breakdowns now (I don't know whether it is intentional or not), and maintenance is very expensive. The state has also noticed that there are more and more people defending the rights of flat-panel TVs, and this document has been clearly formulated. By the way, plasma and LCD TV means that the screen uses plasma or LCD instead of the traditional CRT (cathode ray tube, CRT display is huge, it is an old-fashioned big-ass TV), which greatly reduces the thickness of the display, so it can be collectively called flat-panel TV, which absolutely conforms to the definition of color TV standard. The main components of big butt TV are CRT, flat-panel TV and LCD high-voltage board. , are all display components of TV image display equipment, and manufacturers exploit various loopholes to avoid responsibility.
I collected it for several days, sorted it out, and shared it with all parents who want to defend their rights, giving everyone some basis to break this sentence: the motherboard is not the main component, and it has been a lie for six years! I hope that after understanding the policy, everyone can actively take up legal weapons to resist cracking down on unscrupulous businesses, safeguard their legitimate rights and interests, and actively report to the local industrial and commercial departments, not only to complain, but also to pursue it to the end! ! Cooperate with the state to severely punish these bad manufacturers! But also for industrial development and progress. Their machines are not well produced, and they are thinking about how to make money after sale all day. Why do 2-in-1 and 3-in-1 boards make the interface position stuck in the gap of the wall, and the circuit board is particularly easy to break? The point is that it will be broken in a year or two. This time, you pay, who pays?
Is the TV motherboard the main component?
Generally, TV has only one shell except the screen motherboard, so it is of course the main component!
Is the TV motherboard the main component?
The TV motherboard is the main part of the TV ... The warranty period and warranty method of the main parts are very different from those of the wearing parts.
Can the LED LCD TV three-in-one integrated plate replace the power board and separate from the main board?
Difficult! No one has tried it so far, it is theoretically possible! But in fact, the cost of leaving and adding labor may be more expensive than buying a board! Not worth it! I hope it helps you! Hope to adopt!
Can the LED LCD TV three-in-one integrated plate replace the power board and separate from the main board?
The three-in-one motherboard led of LCD TV has two pins for power supply. In fact, the backlight also has two pins, and the pin in the middle of the three pins is useless. Yes, you don't need to connect.
What role does the motherboard play in smart TV?
Zhishi motherboard is the main part of TV, which integrates the central processing unit (CPU), display core, memory and other chips, capacitors, circuits and so on. According to the different components on the motherboard, the function of the motherboard is different; Mainly includes:
1, the motherboard is the core of TV operation, which helps TV to realize many functions, such as signal processing, image processing and sound processing.
2. The motherboard of the smart TV is the soul of the intelligent system, which helps the TV system to receive and analyze various instructions and then distribute them to all parts for work, which is equivalent to the central brain of the TV;
3. Different models of TV motherboards have different functions. Because the main board structure, circuits and components are different, the functions that can be realized are also different.
What role does the motherboard play in smart TV?
Integrate CPU, memory, display core, memory and other functions. Similar to a mobile phone, but without a sensor. Of course, there are also motherboards with traditional TV functions, and the integration of different manufacturers is different.