Extremely cost-effective! Micro whale TV violent dismantling

Why is selling so low? TV is not very profitable. The price war is not something that happened after the rise of Internet TV. In the 1990s, the TV price war between China, Japan and Korea was once in the Chinese market. Can not fight hardware to make money, plus the threshold of the installation of TV is getting lower and lower, so flexible Internet companies must change their minds to play TV. Occupying the living room, mastering users, creating content portals, etc., have become a project for Internet TV manufacturers to spare no effort to collect data and cultivate users. Similar marketing has unwittingly launched a price-subsidy war in the travel, catering, and service industries, and Internet TV will eventually undergo this round of blood washing.

Gossip about it here, the war on the Internet is not easy to get into. Today, our evaluation room will be a real prosecutor, violently dismantling an Internet brand TV - micro whale WTV55K1. Look at its work and materials, is it as mentioned above, the money subsidies can not stop. After all, the gorgeous depiction of the copy is not as good as the violent dismantling.

For the whole process of TV disassembly, we made a short video, dismantling a screwdriver and arrogant.

Appreciation

Detailed explanation of the motherboard

The difficulty of disassembling the micro whale WTV55K1 is very low. Remove the back cover by taking dozens of screws on the back. Remember that the LCD panel is very delicate. In the process of dismantling, you must put a plastic sponge pad on the bottom of the TV, or move the TV directly to your bed. Of course, we do not recommend non-professional users to do TV disassembly. Moreover, the back of the fuselage is also affixed with a label that prevents unauthorized disassembly. After breaking it, it cannot be guaranteed!

After uncovering the back cover, the internal structure is clear at a glance. There are mainly six parts in the WWWKKK1: signal processing board, power board, power switch part, WIFI Bluetooth module, key control board, and speaker. The internal structure of the TV and the wires are neat, and the way of wiring is also wired, avoiding cross-knotting. The speakers are distributed on both sides and fit in the back panel. From the perspective of the volume of the audio unit, the sound quality is worth looking forward to.

The main board is fixed by four screws, the board surface is clean, the module and chip are clear, and the terminals are side-out, all of which are combined with the main board by means of plug-ins. Solid capacitors are scattered all over the motherboard, and the amount of gold is full! The huge gully heat dissipation module also ensures that the active heat dissipation structure has high heat dissipation performance. The processing chip and the heat sink are soldered on the motherboard, and the small series is temporarily let go. From the officially announced parameters, the micro whale WTV55K1 uses the MStar Cortex A53 architecture 4-core processor and the ARM Mali-450MP4 GPU.

Let's take a look at the memory section. The micro whale WTV55K1 has two built-in HYNIX DDR3 memory, the memory model is H5TQ4G63CFR, dual channel 2GB capacity, frequency 1866MHz, which brings faster speed for frequent exchange of big data.

Smart TVs can be installed with more and more applications, plus playing games on TV, K songs, etc., the flash memory of TV will become more and more tight. The micro whale WTV55K1 has a built-in 8G flash memory of the usual level, which is much better than a large number of 4G storage TVs. From the flash diagram, it can be seen that it is equipped with Samsung's 8GB eMMC 5.0 flash memory chip, the specific model is KLM8G1GEND-B031. This flash memory uses a 19mm process and is superior in read and write speed.

The color of the interface part is to see if it is filled with a full force? Yes, the Whale WW55K1 uses a fully gold-plated interface, which has a stronger and more stable signal transmission capability than the copper interface. The gold-plated interface also effectively reduces oxidation and improves the service life of the interface. Gold has a lower resistance than copper, which further increases the conductivity.

At the same time, the whale WW55K1 interface lineup is also very luxurious, with 3 HDMI2.0 (relative to HDMI1.4, HDMI2.0 interface transmission speed is faster, up to 18Gbps), 1 USB2.0 and 2 USB3.0, one Optical fiber output can be said to be the heart of high-definition and HIFI users.

Power board & LCD driver board

The power board adopts a black PCB board, which covers a very large area and has sufficient materials. The standby circuit of the TV adopts a flyback standby circuit, and the three transformers are respectively embedded in different positions of the power board, which provides a stable energy source for the television. Instead of using a patch cord on the power board, the socket hard switch is used directly. Power information can also be seen on the nameplate of the TV.

The green original film in the figure is called the thermistor, which can suppress huge current and protect the circuit at the moment of starting. The black, battery-like cylindrical object is called an electrolytic capacitor, and the capacitance can be very large and better stabilized.

The LCD driver board module is often referred to as the “drive board”. The function is to process and control the signal sent by the core processor, and then send it to the LCD panel to display the image. The more important integrated circuits on the driver board are the master chip and the microcontroller. The input interface of the driver board is connected to the main control chip of the TV main board through a connection line, and the output interface is connected to the liquid crystal panel through one or two signal transmission lines.

The driver board of the Whale WW55K1 wraps the entire circuit board with a metal cover and is fixed with two screws. The protective measures are in place and the anti-interference ability is strong.

The driver board of the micro whale WTV55K1 uses the original LG master chip. The driver IC is clearly marked with the word “LG Display” and the chip model is TLi2380EP. Judging from the data we have learned, this is also the series of chips used by most domestic color TVs.

Other structure

The micro whale WTV55K1 uses a separate WiFi module. WIFI is a 2X2 dual-receiver dual-transmitter antenna design, and supports 2.4GHz and 5GHz dual-band WiFi signal reception, supporting 802.11ac protocol. The theoretical network transmission and reception speed reaches Gigabit. Bluetooth is also integrated on this module, supports Bluetooth 4.0, and is backward compatible. It can be combined with other Bluetooth + wireless network modules to work with other RF. The wireless connection is very powerful.

Today's TVs are getting thinner and thinner, and the sound of TVs is limited by physical space. In ultra-thin form, it is difficult to make the sound quality better, especially the heavy bass effect that requires a lot of space. The micro whale WTV55K1 leaves plenty of room for the audio module at the bottom of the TV, providing a constant source of power for the music.

The micro whale TV is equipped with two uniquely designed dual passive unit sounds, rated at 2 x 10W, and incorporates a silk film tweeter. It can also be clearly seen from the back of the TV motherboard, which supports sound effects such as Dolby Digital and Dolby Digital Plus.

The micro whale WTV55K1 is equipped with a LG IPS RGB true 4K hard screen panel. The physical resolution is 3840x2160 and the viewing angle is 178°. Under standard conditions, the brightness can reach 330 nits, the dynamic contrast ratio is 10000:1, the dynamic response is 8ms, and the number of colors is 10bit. The parameters of the panel are attached to the back of the LCD screen. From the actual dynamic and static image display effect, it is highly consistent with the official announcement.

The micro whale WTV55K1 uses five-dimensional keying, similar to the early rocker buttons. At present, mainstream TVs are equipped with such five-dimensional keying, which is easier to operate blindly than independent buttons.

The line layout and cable interface of the micro whale TV are very neat, the buckle is also very firm, and there is no breakage due to improper force during the disassembly process. All cable interfaces are embedded and more secure, and the key parts such as the LCD driver board are also protected by a metal cover.

[Disassembly summary]

PConline evaluation room is very smooth for the entire dismantling process of the micro whale WTV55K1, which of course is inseparable from the reasonable internal structure and layout of the TV. From the actual dismantling diagram, we can see that the various components and core components used in the Whale WK55K1 are from mainstream accessory manufacturers and chip manufacturers. The purpose of dismantling is to restore the nakedness hidden by the back cover, without having to go to great lengths to speculate on the meaning of the words in the words of the flashing copy, and not to deliberately understand the artificial nouns of the manufacturers, although both It grows like one, but one family name.

In the face of the facts of dismantling, we have also seen such a phenomenon. There are a lot of people who have smart phones, but almost no one has a smart TV, even if the threshold for TV is getting lower and lower. This can only explain one problem, the profit of TV is very small. Why do Internet vendors have to intervene in this drowning, and naturally have their abacus. We know that the micro-whales, LeTV, PPTV, and Storm have emerged two demon stocks in 2015. Besides the strong capital operation, they also show that their models have earned enough attention. Maybe they are not just relying on hardware to make a fortune.