We consider reviews about DEXP TVs, the strengths and weaknesses of the manufacturer

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TV repair DEXP H39D8000Q. Repair information for users is below on the page.

Brand: DEXP, Model: H39D8000Q. Briefly about the TV: LCD, LED backlight, 39″, 1366×768, 720p HD, DVR, sound: 20W, HDMI connectors: 3, Internet access, Wi-Fi, Smart TV.

The composition uses MainBoard CV338H-U42

and LCD panel
LC390TA2A
. The power supply is combined with the MainBoard.

About company

The DEXP company is a domestic manufacturer of home and commercial equipment in a wide range of fields. The brand was founded in 1998 in Vladivostok, and in 2008 the assembly of the first equipment of its own production began.

Starting with the release of computer monitors, today the company has significantly increased its product range.

Currently the following products are produced under the DEXP brand:

1. TVs, computers and laptops;
2. smartphones and tablets;
3. video cameras and photo frames;
4. electric kettles and microwave ovens.

Dexp product range
In general, the products are represented by almost all types of equipment for personal use, from mobile phones to quadcopters. A large number of components for various equipment are also produced.

Modern TV receivers from DEXP deserve the most attention, especially against the backdrop of the small number of domestically produced analogues.

Peculiarities

When choosing any product, the buyer often looks closely not only at the equipment itself, but also at the manufacturer who produces it.

The company cannot take away such advantages as:

1. Affordable price. It is much lower than analogues of comparable characteristics from other manufacturers. And this is explained not by worse quality or service life, but by domestic assembly with low cost.

The lineup

1. Rich assortment. The buyer can purchase any devices and spare parts for his TV panel at an affordable price. You won’t have to wait long for your order, as is often the case with imported equipment.
2. Modern functionality. DEXP devices are not among the “weak” or budget ones, which are stereotypically used to classify domestic or Chinese-made equipment. Today on the market there are both more outdated models of early release, and modern products that are not inferior in capabilities to analogues of well-known brands.

Now, having understood the advantages of the company, you can consider the pros and cons of the TVs themselves.

Advantages

DEXP pays special attention to its TVs and tries to keep up with its competitors.

The advantages of television equipment from this manufacturer include:

• Solid lineup. Each line of TVs is available with screen sizes from 20 to 75 inches. Even some large companies, whose sizes start from 45 inches, cannot “boast” of this.
• Ease of Management. The user does not require much knowledge of the hardware, and setting it up is very simple. There is no need to log in to the manufacturer’s website, maintain constant synchronization, and perform other actions (which not everyone understands).
• Highest sound technology. High-quality and contrasting sound, with precise tuning with several options. There is support for surround sound (3.1, 5.1 and 7.1) and Dolby Digital technology.
• Full-fledged Smart-TV. The latest models of Smart TVs support Internet access, debugging and scaling of images, uploading to media, screen duplication and streaming.

• Support for international standards. TV panels work with the DVB format, HDMI and USB ports, UPnP media service, etc.
• Standard design. By appearance we can say that this is a standard TV without futuristic delights. At the same time, it is very thin and has small edges. That is, the body does not “shiny” externally, but at the same time it is made conscientiously and with high quality. Moreover, a TV with a standard design is easier to integrate into any room interior.

Design of one of the Dexp models
Of course, a particular model will have its own strengths and weaknesses. But if we consider all DEXP TV panels, then they have everything necessary for modern television.

Model: H39D8000Q

Additional sound features: Surround sound
.

Case color: black

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It is possible to mount the TV to the wall.

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SCART

Flaws

Despite their advantages, DEXP TVs also have disadvantages that may not suit everyone.

Therefore, for the sake of fairness, it is worth mentioning them:

• Weak multi-streaming. The user will have to deal with a number of delays if multi-stream information exchange over the network is planned (for example, watching IP television or a movie from Youtube while simultaneously downloading content from the Internet to the media).
• There are no buttons on the case. This can have a negative impact if the remote control breaks down. The manufacturer does not offer any of its own utilities for other control options, so you will need to look for an application and set up control from your smartphone.
• The software often crashes. Users often complain about frequent “glitches” in operation due to which they have to reflash it. This does not cause serious problems and you can update the software yourself, but some inconveniences are still created.

• No Smart TV in the cloud. This means that all the “smart” components of such a TV are located in it itself and there are no inexpensive models with weak hardware. But given the fact that they are already more accessible than foreign-made analogues, this minus is not critical.

Review

Hello. Let me start with the fact that the TV became an integral part of our room, and at first we placed it in the living room. Initially, we had a different brand, however, it did not have a smart TV and it was not convenient to constantly screw this set-top box, for which at one time you still had to to pay. Although the TV was branded and without any complaints at all, it was an old model, so it was decided to change it and we swapped with our parents, they didn’t need Smart, but they needed a branded one and a smaller one, so we got the first TV from the dns store of their own company, dexp, of course it was a no-name, but on the other hand it had everything we needed, of course it’s not an expensive TV and we didn’t expect much, but it pleasantly surprised us with its picture quality and functionality, so when we were choosing a TV for the room, we decided to take one already tested by the company dexp, we got this model at 13000, for a 39 diagonal it is very budget-friendly, we are a year apart, and the TVs are completely different, the first thing in the new model is a remote control with voice search Alice, which is convenient if you previously had difficulty manually in some Yandex, I entered a link and made a mistake, erased it, then entered it again and erased it again, and so on endlessly, it also froze, here the remote control has a microphone, just like in a smartphone, you can press a button and talk, what’s also remarkable is that the remote control has no extra buttons , even an old person can figure it out, the buttons are large, convenient, the TV itself is of course not ultra-flat, you need to calculate this when you hang it on the wall, the TV has basic channels, as well as YouTube and Kinopoisk and everything is by category, it’s convenient to turn on the same cartoons for a child or find a series for the evening, the only thing is that if the room is unfurnished, then the acoustics of the TV, as well as the volume, are high, even at 1 we hear the sound perfectly, the advantage of this model, in addition to voice search, is also a fairly wide but simple interface, super high-quality HD, at least the cartoons are very bright and colorful, visibility at night is also excellent, the diagonal for the room is good and just right. Just from the eyes to the TV the distance is 2 meters and the eyes do not get tired. A TV of this brand has been serving us for a year without any complaints (the one that is in the hall), so I am calm about the quality of the product I have already tested completely, by the way, the logo is measured below, or rather it is not there, which means it is difficult to guess that the TV is inexpensive, because it is made under the road , yes, even if the company is not as famous as Samsung, but the quality is quite good, the only thing is that over time it can freeze sometimes, but no one will guarantee the eternal service of the TV, the program can also be updated, thereby the interface can change. When purchasing, they warn you that it works on the Android 9 platform, the Internet is quite fast compared to the old TV, in general we are happy with the purchase, this TV is much better than others for the money (in terms of functions), it’s newer, so if you have a budget of up to 15,000, it’s worth paying attention to this company , of course, all this is not for everyone, if you had a fancy one, then this one will not surprise you, but if you need something simple and functional, convenient and modern, then this company is trying to satisfy your needs.

Customer Reviews

The advantages and disadvantages can only give a general picture of DEXP TVs. But it is better to get a more objective assessment. And this can best be done only by a user who has already purchased the products of this company and knows them in practice. Below is an overview of reviews of DEXP TVs from customers.

U43D9100H 43″

Nikolai

Pros: 4K image and full Smart TV options! Wi-Fi, Youtube, convenient control. 60Hz 8 and 10 bits from a computer via HDMI, for older ones there is also VGA! An excellent panel not only to watch, but also to use as a computer monitor! Real stereo sound, I don’t even think about separate acoustics. Disadvantages: There are no control buttons on it, if you use the remote control you will have to play tricks with your phone and applications! Not suitable for powerful games, the frequency is low.

F22D7200E 22″

Elena

OKKO service subscriber

Advantages: I was looking for a cheap TV for my grandfather in the village to replace a broken one. And I found this miracle for only 8 thousand rubles. There is digital TV, good sound 6 W, no glare in the corners. But most importantly, it even has Full-HD! There is HDMI and USB, I watch videos from my phone on it when I’m visiting my grandfather. Disadvantages: Complex menu, I spent a long time looking for how to set it up. No more were found.

Based on reviews, we can conclude that DEXP TVs are not without their shortcomings. But they are individual and manifest themselves in separate moments. In general, the models of this company are rightfully called modern televisions.

TV repair DEXP H39D8000Q

General recommendations for repairing TV LCD LED

Possible faults

— TV DEXP H39D8000Q does not turn on.
There are no signs of functionality. The indicators on the front panel do not light or blink, the TV does not respond to control buttons. In this case, the main power source may be faulty - the AC/DC voltage converter, the elements of which in this model are located on the common MainBoard CV338H-U42 board. You should measure its output voltages and, if they are absent, check the power switches (TO-252) and rectifier diodes for the possibility of a short circuit in the converters. In the event of breakdowns in the secondary circuits, the converter can operate in short circuit mode, and in the event of a short circuit in the elements of the primary circuit, the mains fuse usually breaks. Breakdown of Mos-Fet switches used in pulsed sources is often caused by malfunctions of other elements, for example, in the power circuit of a PWM regulator, in frequency-setting or damper circuits, as well as in Negative Feedback stabilization. PWM SOT23-6 PWM chips are usually checked by replacing them with new ones or ones that are known to be good.

— There is no image, there is sound, it responds to the remote control. Or, immediately after turning on, the image may appear for a second and immediately disappear.

In some of these cases, the problem is caused by a lack of display backlight. The reason may be a malfunction of the LEDs, a violation of the contact connections of the LED strips CC02385D671V03 385B 385E20 3X7 7S1P 1910 0D2, or the provision of power to them (LED driver). To detect a break in the LED strings without disassembling the panel, you will need a current source. It is impossible to open junctions connected in series with a simple multimeter; voltages of several tens of volts are required.

— The indicator on the front panel blinks, the TV does not turn on in operating mode, and does not respond to the remote control.

Repair or diagnostics of the CV338H-U42 motherboard should begin with checking the stabilizers and power converters necessary to power the chips and matrix. If necessary, the software (software) should be updated or replaced. In cases of complex MB (SSB) repairs and if you have the necessary skills and equipment, it may sometimes be necessary to replace its CPU chips: MSD6A338, SPI Flash: 25Q16 and other possible faulty components. Malfunctions associated with the use of BGA soldering technologies are usually easily diagnosed using the heating method.

A malfunction of the R842 Rafael Micro tuner is determined after checking the software and all supply voltages at its terminals. The exchange of data between the tuner and the processor via the I2C bus can be monitored with an oscilloscope.

We remind users once again! Attempts to independently repair the DEXP H39D8000Q TV without the appropriate qualifications and necessary experience can lead to its complete irreparability!