Skyworth 55S9300 dismantling evaluation OLED TV hard analysis

Skyworth OLED TV is a high-end smart TV series product released by Skyworth in 2015. With its 4-color 4K self-illumination and JBL full-range audio combination, Skyworth OLED TV has become a smart TV sought after by users. So, what about the Skyworth 55S9300 TV? Where is the good thing? Xiao Bian Skyworth 55S9300 dismantling evaluation, OLED TV hard match analysis introduced!

Skyworth enjoys the OLED organic TV S9300 series, uses 4 color 4K self-illumination as the display core, equipped with JBL full range audio combination, top quality + professional audio for users to bring high-end audio and video experience. At the same time, a 4-core Cortex A17 CPU with a 1.8GHz clock frequency is equipped with a 6-core T760 GPU and a 2-core VPU. The configuration is currently top-level, and the functions are also complete. Since the release date, this TV has attracted the attention of many consumers, allowing users who have expectations for OLED TVs to be ready.

Internal layout

The Skyworth 55S9300 is a 55-inch OLED TV, which is very large in size. At the same time, the screen is very thin. We must be very careful when disassembling, and we must pay attention to protecting the screen.


Skyworth 55S9300 dismantling site

In fact, TV dismantling is not complicated and a screwdriver can be completed. We first remove the screws on the back shell and remove the back shell. This back shell is heavy, weighty, and exquisite workmanship, highlighting the stylish home atmosphere.


The back shell removed by Skyworth 55S9300

After removing the back cover, you can see the circuit board inside the Skyworth S9300 TV, as follows:


Remove Skyworth S9300 TV body from back shell

It can be seen that the partition layout of Skyworth S9300 TV's functional circuit boards is very clear, and the power supply, screen driver, main board (movement), and audio are clear, and the wiring is well-ordered. In addition, the fixed wiring is made of flame-retardant adhesive tape, unlike the cheap fiber tape used in general television.


Skyworth S9300 TV internal layout

The overall interior feels neat and meticulous. The fuselage is grounded through the power cord and the internal traces are in accordance with the safety certification requirements, maintaining full distance.

Bluetooth, WIFI

Let's take a look at the components inside the Skyworth S9300 TV. There is a plastic shell on the left and right sides of the TV backshell, in addition to the mounting bracket, there are components inside. As shown below, there is a blue chip inside the power switch. The chip model is CSR8510, this chip supports the latest Bluetooth 4.0 protocol.


Power switch and Bluetooth chip

The breath light effect of the Skyworth S9300 TV screen is dazzling. After dismantling, take out the following picture. We observe that the original light consists of 20 LEDs to realize the lighting effect, and the gesture control switch is realized through the sensor.


Skyworth 55S9300 breathing light

Located on the right side of the breathing light is a small circuit board. This is a WIFI chip and the model is NTUD-86. From the configuration data of Skyworth S9300 TV, dual-band and hotspot are supported.


Skyworth 55S9300 WIFI chip

JBL audio

Compared to ordinary TVs, the Skyworth S9300's audio and television configuration is luxurious. There are six JBL speakers on the front, which is an treble unit, and a bass unit on the back, forming a full-range coverage.


Skyworth 55S9300 JBL "Golden Eye"

In the dismantling process, we removed the woofer unit. Its volume is very large. It is a one-piece package design and cannot be dismantled. The whole is fixed on the camera body by three soft rubber rings. This kind of processing facilitates sound transmission.


Woofer: Original JBL Subwoofer

Since it cannot be dismantled, we use the official data map to understand the structure of the bass unit:


Bass horn's internal structure

The front unit is fitted with a transparent acrylic plate and it has a crystal texture. The tympanic membrane of the unit uses carbon fiber silk film and silk cloth drum paper, and the sound effect is guaranteed.


Skyworth 55S9300 Front Speaker

Moreover, from the dismantling point of view, the quality of the internal audio cable is also quite standard:


Skyworth 55S9300 high-quality cable

The following is the internal structure diagram of a 55-inch LCD TV. Compared with the structure diagram of Skyworth S9300, we can see that the S9300's audio parts are indeed much larger. Tailored by professional audio designers, Skyworth is really hard at TV audio.


The internal structure of a 55-inch LCD TV

Power circuit

Let's take a look at the power circuit section of the Skyworth S9300 TV. In fact, when we just opened the back shell, we were already shocked: dense heat sinks! The TV's rated power is 450W. It can be imagined that this is a challenge for the power supply, especially in terms of heat, this power supply The dense heat sink on the board can solve this problem.


Skyworth 55S9300 is covered with heat sink

This power supply circuit board is marked with the power supply model R8F052, and the design time is June 13, 2015. It can output three kinds of voltage and supply other electronic components of the TV. The large black capacitor in the picture above is Acon 450v 100uf. This capacitor is usually used to filter out clutter and stabilize the current signal. Acon is a Taiwan brand.


Work on the back of Skyworth 55S9300 circuit board

Skyworth S9300 TV's power supply circuit gives people a sense of solid workmanship. The materials used are real. From the back of the power supply board, it can be seen that every solder joint is accurate, accurate and full.

Chip motherboard

The following is the movement of the Skyworth S9300 TV. The mainboard of the chipboard is the intelligent system that controls the TV. Similar to our usual computer motherboards, it has chips such as CPU and memory.


Skyworth 55S9300 smart motherboard

The layout of the smart motherboard is very close, one side is full of power or data connection, one side is the TV interface, there are two large heat sinks in the middle, the following is the main chip of CPU, GPU and so on.


Motherboard Model: 5800-A8S870-0P10

This motherboard has Skyworth's LOGO, which should be produced by the company. The motherboard model is 5800-A8S870-0P10. The Skyworth S9300 uses a 1.8GHz 4-core Cortex A17 CPU with a 6-core T760 GPU, but all this is masked under the heat sink and is not easily dismantled. We only use it to imagine.


Movement board back: you can see very high integration

Screen drive circuit

Skyworth S9300 is an OLED TV. The logic board that drives the OLED screen is the same as the LCD TV. First of all, what we have noticed is still a large-area heat sink. This heat sink has only one fan compared to the computer graphics card. Now.

Screen driver circuit board, covered with a large aluminum plate for heat dissipation



The heat sink is in contact with the main chip through the black adhesive sheet above

With the heat sink removed, we can see the logic board that drives the OLED panel below. This board is also an LG product and can output 4 color 4K screens with the panel.

Removing the heat sink's screen driver logic board

The LG's logic board model is LC55OLQD-GHP5, and the design date is April 13, 2015. We can see that the chip used above is LG Display, the model is LG5322A2, and the memory chip is 5tq2g63ffr of Skhynix (Hynix).


LG Display's chip: Model LG5322A2

Skyworth S9300 TV adopts LGD's OLED screen, which can control the self-illumination of each pixel. Moreover, RWGB 4-color 4K technology is adopted, and white sub-pixels are added on the basis of traditional RGB three-color to improve the display effect of the screen. It's all done through this logic board.

The same work on the back

OLED screen

Here, basically nothing left, Skyworth S9300 TV has only screen and body frame.


Remove all parts, leaving only the screen

We can see the label attached to the screen metal substrate, model LC550AQD, Made in KOREA, origin in Korea.


LG logo on the screen

We can't dismantle the screen, but we can introduce the physical structure of the OLED screen:


The basic structure of OLED and LCD

OLED (Organic Light-Emitting Diode), which is called Organic Light-Emitting Diode in Chinese, has a microscopic structure consisting of a thin, transparent, indium tin oxide (ITO) with a semi-conductor characteristic, which is connected to the positive electrode of the electric power. A metal cathode that wraps into a sandwich structure. The structural layer of the OLED includes a hole transport layer (HTL), a light emitting layer (EL) and an electron transport layer (ETL). When the power is supplied to an appropriate voltage, positive hole and cathode charges are combined in the light-emitting layer, and their energy is emitted as photons or thermal energy respectively. The photon part can be used as a display function to generate light.

At the macroscopic level, the basic structure of the OLED screen is usually a substrate+OLED self-emission+glass substrate. The substrate is mainly used for carrying, the OLED emits light from the light emitting body, and the glass substrate is used to protect the package. The screen structure of Skyworth OLED TV is also as follows:


Skyworth OLED TV screen structure

Skyworth OLED TVs use self-illumination screens, and thus have the most significant advantage of black field control. When displaying black scenes, all self-emitting sub-pixels display a non-light-emitting state, allowing the screen to be completely resold without any light leakage.


Skyworth OLED screen black performance is excellent

The contrast of the self-luminous body is very high, up to 1,000,000:1, far more than LCD TVs, which can make the TV screen layering extremely strong.


Skyworth OLED screen with high contrast

The response time of the OLED self-illuminator is within 0.001 ms, which is more than 4,000 times faster than that of the LCD TV screen. Even when watching high-speed motion pictures such as racing, the OLED self-illuminator is smooth and clear, solving the problems of smearing and afterimage.


Skyworth OLED TV dynamic display better than LCD TV

In addition, traditional LCD TVs have a 60-degree luminance viewing angle of 40 degrees and a self-illuminating body can achieve a 160-degree luminance viewing angle and a 120-degree colorimetric viewing angle with a wider viewing angle.


Skyworth TV viewing angle

The OLED self-luminous body not only has good color performance, but it is worth mentioning that compared to the quantum dot technology, it does not contain heavy metals such as cadmium, indium, and the like, and is not toxic to the human body.


Skyworth TV has no radiation screen

to sum up

Here, the dismantling of the Skyworth S9300's TV has largely been completed. The internal structure of the OLED TV, as well as its workmanship and materials, are present in front of everyone. I believe netizens will have their own opinions after reading. Skyworth S9300's component materials are mainly well-known brand products, in addition to the workmanship is also worth noting, the layout of the circuit board specifications, workmanship is also worthy of domestic manufacturers to produce, make people convinced.


Skyworth OLED TV S9300

Skyworth S9300 as a top flagship TV, not only beautifully designed, excellent picture quality, powerful, internal workmanship and materials are also guaranteed, consumers can rest assured when buying.