Foreword
With regard to television, no one should be unfamiliar. After many years of electricity, it is still one of the highlights of most living rooms.
As a different kind of feeling after 80 years, I recall watching television in my childhood, playing red and white machines, and fighting my aunt (steal), wisdom (steal), fighting (touching) courage, and you all know!
About the brand
SUNGPO should be unfamiliar to most people
The official introduction of it comes from the following:
Basically, it can be said that the old leading LCD brand SHARP, in recent years, X meters, X TV, and other new domestic brands have finally been unable to stand up and down, put down the body and the new sub-brand, the main smart and cost-effective. The 40A11A and 50A11A are the first products to test water.
The 40-inch 1080P specification is somewhat overshadowed by the super-large screen, 4K, and other technologies. However, it cannot be considered to be useless.
For Japanese-Taiwan-based LCD panel makers that have a large number of old and sixth-generation cables, the economic cut rate of 39.5 inches (typically 40 inches) is as high as 97%, which is of considerable significance for ensuring production capacity and utilization.
For end-consumers, moderate size is relatively appropriate in such rooms as the study and bedroom.
For me, I can finally play games in my study room without having to wrestle with my wife. . . .
The main parameters
Appearance
Aunt Zhang’s responsible attitude towards the products tested is worthy of praise. The reinforcement of the wooden frame ensures the safety of product transportation. And bear high shipping costs
Poor I can use the unpacking tool to start a word. I'm just licking and awkward. It took more than ten minutes to unpack it. Â
This time the packaging did not have a "value" tape seal, but the middle sticker indicates the source.
Product packaging is quite satisfactory, product protection is in place, bracket installation is also very simple, according to the instructions to get 5 minutes, the specific process will not waste time, everyone should be.
After the overall installation of the screen width of 90MM on the size of my newly purchased small cabinet 
One of the highlights of the 40A11A: The narrow border is true, and the effect is very good.
While measuring the thickness of the next TV, of course, this test is not accurate, because the back part is actually a convex shape, but gives the first image is the border. In fact, I am not enthusiastic about the ultra-thin TV. After all, there is no moving equipment. Even a thick hung on the wall is not sensitive.
Infrared remote receiving window, power indicator, and several supported technical standard stickers in the lower right corner
The actual display effect after the screen is lit is also very good, and there is no black border phenomenon within the border. The overall product feels law-abiding, not fancy or rigid.
Sonic's remote control workmanship is basically the same as other SHARP TV models.
Home SHARP remote control family portrait. . . . The sound controller and SHARP 46GE220A remote controller are basically the same color
It is worth mentioning that the three remote control signals are compatible and can be remotely controlled, but some special keys are incompatible.
40A11A Annex family portrait, not to mention rich, after all, price positioning is there.
Product dismantling
For electronic products, in addition to the appearance of everyone must also care about the internal structure and workmanship
For durable appliances such as TVs, dismantling is still quite easy for future maintenance. All screw holes have a warning sign. The rear cover can be easily lifted by removing all screws according to the logo.
This is the interior of the 40A11A. The main part is the left yellow circuit board and the right green image source board.
Perhaps some people will be disappointed, compared to previous CRT, plasma, and LCD TVs a few years ago full of dangling device devices, shrinking ideas such as cutting corners immediately come to mind.
But think about it now, the power consumption of the TV has dropped to a very low level, and the power supply circuit is not too complicated to meet the demand. As for the image source board, it can be done very compactly with a highly integrated processor. What's more, this is the main product of low-end and mid-range, horizontal comparison of the same price, then each is similar, and cost control is understandable, so everything is really enough.
Image source board main device introduction
The main interface and device location
The middle of the large white heat sink wrapped is the core of the CPU, but unfortunately the heat sink fit too tight can not be safely down, I do not know the specific model, the approximate performance please refer to the following test.
Samsung K4B4G1646D-BCMA memory chip next to the CPU, a single specification 4Gb D-die DDR3 SDRAM timing DDR3-1866MHz, 2 composed of 1G memory system
Sandisk SDIN8DE2-4G eMMC memory chip, 4GB capacity, maximum read speed 90MB/S maximum write speed 12MB/S.
The main external interface, video output 40A11A provides 3 HDMI interfaces (side HDMI supports MHL simultaneously) and a set of color difference interface
The high-frequency head with SHARP LOGO indicates its own origin.
One of the highlights: USB3.0 interface
These two nominal service-specific interfaces, but I do not know what service is
Before viewing some of the reviews, many people suspect that SUNGPO is a fake factory product under the name of SHARP. I also had similar concerns. However, doubts about the dismantling were completely dispelled. The following is the image source board and power board number. Friends familiar with SHARP other models can see that this is the standard SHARP material number.
Later, I learned through some other channels and confirmed that this brand is produced at Sharp's Xingang plant in Nanjing.
But we have to say that this is not a pure SHARP product, after the dismantling to find the screen material number, after a number of channels to check, confirm that it is not SHARP original, in fact, outsourcing Innolux display module, whether the full 40-inch can not be confirmed, However, from the cost point of view, it is very likely that the 39.5-inch display module. Specific display effect see detailed evaluation later.
The wireless network card is not integrated in the image source board, but is installed independently and data transmission is performed through a data line.
For the wireless network card using this data transmission method, personally think that it is too arbitrary, direct fly line connection is very easy to affect its effect, and the back test also proved that 40A11A wireless performance is very general. . . . . .
Through the MAC query, Shenzhen Maiteng electronic products, support 802.11N standard
Two external antennas are connected, so it is almost impossible to achieve a full speed connection of 802.11N 300M. After that, it is confirmed that only 130M is actually supported.
Speakers are placed under the body, one for each left and right channel
Speaker shockproof technology in place, the joints are protected by rubber buffer washers, the overall effect is acceptable.
In general, the internal structure is in line with its own price positioning. After all, it is a cost-effective route. Satisfying the function is the main task.
system software
The initial boot LOGO display
System startup screen
Set up the process and follow the prompts to set it.
Channel search Here, instead of searching for ground signals, search for the cable channels connected to the tuner. Basically, skipping is straightforward. I think there should be very few direct cable TVs with TV tuner. .
After setting, enter the system, based on Android 4.2.2 custom knowledge system.
The main function is roughly similar to various types of boxes, and many services are charged.
I don’t think everyone’s interested in reading one by one. Let’s just say something that people care about.
The TV body with SD card reader supports FAT32 format, the maximum cap is not clear, but my 32G read out smoothly.
The content can be exported through the system's own "Media Library" file manager.
What to do next, you know!
At the same time, the TV comes with a USB 2.0 interface to support external input devices such as USB keyboards and mice. I'm perfectly compatible with the Logitech K700 keyboard that I ran for N years ago.
With the "you know" method and the blessing of the mouse and keyboard, you can basically jump out of your own system and use it as you like.
Hardware performance
Screen test
For a TV, the screen performance accounts for at least 80% of the overall performance. In the previous disassembly, the screen used by the 40A11A was introduced by Innolux . Due to the non-SHARP origin, many friends have doubts about its performance. So this will be tested in detail below.
First of all, the light leakage test, I am very concerned about is the level of light leakage control, uneven light leakage has a great impact on the overall effect, especially in low-brightness video playback scene. The 40A11A's leak control really surprises me. . . Almost perfect. . .
Even when the camera is turned to the maximum brightness and the camera ISO is turned on for long exposures, the resulting picture shows that the dark field brightness control is very uniform, with only slight light leakage in the upper right corner and the lower right corner. (The study does not have blackout curtains. The shaded area on the screen is actually projected behind the window. This cannot be avoided for the maximum amount of incoming light.)
R, G, B three real color screen shot
Contrast test screen shot, the general performance, the left 2 grid dark field and the right 2 grid bright field are basically linked together can not be resolved.
Viewing angle
Good performance without obvious color cast
Smear phenomenon
I did not shoot for a long time and I had to dictate
Normal video playback is basically invisible, and only dragging black characters quickly in the case of full whitefield will produce a slight smear phenomenon, which has little impact on daily use.
For a more intuitive understanding of the approximate performance of the screen, test using X-Rite i1Display Pro
With the original i1Profiler and third-party DispcalGUI, and test the SHARP 46GE220A TV DELL U2913WM monitor
SHARP 46GE220A in order to compare the original LCD screen display performance of SHARP
DELL U2913WM is mainly used as a reference, after all, the overall performance is higher than the price of this large-screen TV
All measured devices were warmed up for more than 1 hour. The specific results are as follows:
Gamma curve test
Gamma curve test through the test to know the brightness of the 2.2 degree of brightness, the merits of the merits, when the two curves completely coincide, indicating that this monitor can correctly reset the brightness and contrast.
DELL U2913WM will not say more, SUNGPO 40A11A test results are much better than SHARP 46GE220A, I even think that the SHARP test results are wrong, but the continuous test 3 times are similar results, can only suspect that the use of a long time, CCFL Backlight aging performance is attenuated. .
Brightness uniformity test
Uniform brightness refers to whether uniform white can be displayed when the full-screen white field of the LCD screen is approved.
Divide the screen into 9 areas and test their brightness levels. Using the brightness of the center area as a reference, the smaller the brightness difference is, the better the brightness uniformity is.
40A11A test results, maximum deviation at -20cd/m2
Observe the three-dimensional simulation brightness chart. It can be seen that the brightness of the 40A11A changes to the brightest on the right and even to the left.
It can be basically concluded that the 40A11A uses a unilateral side-illuminated LED backlight module with the lamp post in the vertical direction on the left side of the screen.
Compared with the SHARP 46GE220A test results, thanks to the CCFL backlight, the brightness uniformity is better than 40A11A, and the maximum deviation is -15cd/m2.
DELL U2913WM situation is similar to 46GE220A, the maximum deviation is also -15cd/m2, LED backlight does not seem to be cheap. . .
Unilateral side-illuminated backlights have been used in small-sized mobile devices in the past to pursue ultra-thin effects. Comparing a direct-type backlight with a large-size liquid crystal display module is a cost-saving approach in a sense. The unilateral side-illuminated backlight has only one side light source, so there is a higher requirement for the scattering performance of the reflector and the light guide plate. If the processing is not good, the “yin and yang screen†phenomenon of left-right dark is likely to occur. However, large-size LCD TVs are now developing in the direction of ultra-thin, and more and more high-end TVs have also adopted the side-illuminated backlight design, thus promoting the progress of light guide plate technology. From the actual test data, the brightness difference of 40A11A -20cd/m2 is slightly higher than that of the other two monitors, but there is no obvious discomfort with actual visual observation. Taking into account the cost and price factors as well as the positioning of the product itself, this test result is also very happy.
Color temperature consistency test
The purpose is to test the stability of the color temperature of display products under different brightness
The upper left corner of SUNGPO 40A11A is warmer, and the change in color temperature also confirms the unilateral backlight design.
SHARP 46GE220A Cold right bottom corner
DELL U2913WM Basic Uniform
This test is indeed a bit harsh for large-screen TVs. After all, TVs are more used to watch dynamic images, and the slight difference in color temperature is almost undetectable. Therefore, it is for reference only.
Color gamut and gamut coverage testing
â–³E reflects the difference between the display and the standard value. The smaller the value, the better. The higher the score, the more distorted the color.
From the â–³E test score point of view, DELL U2913WM far ahead, and SUNGPO 40A11A even beyond the 46GE220A with the original screen.
Gamut coverage represents the color rendering capabilities of the display device
From the color coverage level can be seen that DELL U2913WM is still leading, after all, the overall performance level of the display panel is still higher than the low-end LCD TV. However, compared to the 46GE220A using the SHARP original screen, the gap between the SUNGPO 40A11A is not large, and the sRGB color gamut coverage is even higher than the 46GE220A.
After the color-corrected 40A11A display is as follows, personally think that although the screen is not SHARP origin, but the overall level is still remarkable
Intelligent system testing
SUNGPO 40A11A equipped with intelligent system based on Android 4.2.2 depth custom system, operating interface is as follows
The overall operation is fluent, and the page switching does not have a feeling of being stuck. After a few days of use, it is also very stable.
When I first entered the system, I was prompted to update the system
The amount of data is still quite large, and it took 15 minutes to get it done.
For smart systems, one of the services that the system is new is also essential. It's better than nothing.
The previous disassembly has been a general analysis of the 40A11A hardware system. Specific hardware and software system information is as follows
As mentioned earlier, the CPU has a heat shield body, the specific model is not known (to see the model to destroy the dedication of this TV I am also reluctant to it), view the system information to see this CPU is 4 core, running speed 900MHz, specific parameters are as follows
This kind of configuration has no advantage compared to the popular boxes of all kinds today, and the test results are not unexpectedly bottoming out. .
But for the TV box, it is not necessary to perform too much performance when playing video. For 1080P video, as long as the data bandwidth can be guaranteed (COPY is on a USB device or SD card), smooth viewing can still be guaranteed. But if you want to play the game. . . Personal advice still dead this heart. . .
Data transmission speed test
For the first task of the smart TV - playing video, in addition to the impact of CPU performance on it, the data transmission bandwidth is a key performance, especially high-stream high-definition video.
It should be noted that due to system limitations, the 40A11A cannot directly write data to its own memory chip, so it is only possible to test the bandwidth of the port that writes data to the SD card or USB 3.0 device. However, according to the eMMC chip model known before dismantling, the maximum write speed of the paint is only 12MB/s, so there is no value in the test. As for the maximum read 90MB/S, although it looks good, it can not be written directly. How can you use it?
Storage equipment used for this test.
First test the USB3.0 interface
USB3.0-->SD card, 20MB/S speed The bandwidth required to play 1080P video should be enough, but what is the difference between the speed of 20MB/S and USB2.0 interface?
SD-->USB3.0, 10MB / S less than the speed, although broadcast 1080P video is generally enough, but this speed is really not enough to read.
For home video file sharing and playback, NAS system is undoubtedly a more convenient way, through the home network of internal LAN sharing, regardless of use or management than the USB device to pull in and save a lot. This is also the development trend of home media storage systems in the future.
NAS system for network testing, QNAP TS-269L
Network transmission performance has always been weak for Android system. 40A11A is equipped with LAN and WIFI network interfaces. First test WIFI performance. Before the dismantling has seen the data cable connection of wireless network card is too random, and the actual test also proved its performance. Not stable
1MB/S transmission speed, even the domestic and foreign network bandwidth can not be full speed, its performance is also the ability to play at most 720P, and the actual use of speed is still very unstable, and even online video are often catered and buffered.
For wired LAN connections, stability is stronger than WIFI, and fluency can be guaranteed.
The 2.5MB/S transmission speed is not enough to see, but there is no problem in smooth playback of online video. The playback of 1080P video in the local NAS can be smooth and smooth, but Caton is also inevitable in places with high bit rates. .
Oddly enough, the bandwidth requirements for smooth video playback by the Android system are significantly lower than those of the WIN system. The latter will play Kartun if the 1080P 20M/S network speed is played. . . This may be the difference between systems or playing software.
It can be seen that the hardware performance of the 40A11A equipped with smart playback system is backward, but the stability of the system itself and for the general video playback is enough to cope, but the network transmission performance is the biggest short board, seriously affect the performance of the The general needs of the user to connect the wired LAN can also basically meet the needs, if the higher the playback quality is recommended or external smart box or HTPC it, as the system comes with WIFI function, it is recommended to forget him. . .
Power test
Standby power is basically 0
Power at system startup
1080P video playback power
For a 40-inch TV, there is no over-reaction, normal level.
Experience
TV installation
First of all, in order to make this newcomer room member play a better role, and at the same time, a bunch of entertainment equipment will not be placed on the floor, LZ went to IKEA to purchase a small side table as a TV cabinet. The structure is simple and placed in the study size. Suitable.
However, the TV is directly on the side table and feels a little lower, and it is decided to install the wall for pleasure. This will also free up the bottom side table and allow more space for storage.
For this purpose, the TV hangers are available for work.
The 40A11A's back-mounting position is a standard hole position. I did not expect to have trouble installing it.
Somehow, the screw holes on the upper and lower sets have different diameters, and the normal M4 screw holes on the lower side.
The top two are M3's. .
No screw is compatible with the bracket. . Fortunately, the solution was finally found. The screws on the 86 switch panel were perfectly compatible, but a small gasket was added. . Here is also a reminder to a friend in need. . . .
The rest can be installed step by step, the overall work of the stent is good 40A11A stable wall, but its function of stretching and swinging seem to be dazzling and actually not much use, this is after all TV is not a monitor. If the demand is not high, buying a simple pylon is sufficient.
Only because the previous renovation had never considered hanging a TV on the wall of the study room, there was no buried pipe so that the pile of cables could only be hung temporarily. . . . . . It does affect the appearance and is looking for the perfect solution. .
After the wall was finished, I always felt that the upper bare was not angry, so I rushed to buy a shelf at IKEA. I think it would be nice to put some small objects on it.
After the completion of the following effect
Experience
First of all, as the display device of an external game console is my main demand for use, although direct access to the monitor can also play, but for racing, action games, the display size is definitely bigger and more cool. A long time ago, I planned to buy a TV in the study and had never agreed with my wife many times. . . . . . This SMZDM finally gave me a long-term dream. . !
40A11A connected to the PS4, the effect is very satisfactory, although not as impressive as the projection and large-screen display, but for the study, the viewing distance is only 1-2 meters in terms of the effect has been very good.
The 1080P resolution coincides exactly with the PS4 output, and the color representation is fully adequate for the game, and smearing is almost undetectable.
Secondly, as a media player, individuals like to turn on the TV when they go home, play current affairs news or some documentaries, talk show programs, etc., and do other things while listening. They also use multiple growth points of knowledge. In the past, they could only open the living room TV. , The volume is too small to hear, affecting his wife to watch Korean drama. . . . . It can only be stopped over time. Now that the study has a TV, I can finally do whatever I want. I even plan to install satellite TV.
(The picture character ghost is actually caused by the shutter speed, not the screen smear)
Finally, as a video playback terminal, 40 inches is not large, but the external HTPC plays some high-definition movies more comfortable than the display.
Conclusion
Through the trial experience during this period, the characteristics of this product of SUNGPO 40A11A are as follows
advantage
All aspects of the body work well, narrow frame design visual effect is good. The overall appearance is smooth and the 40-inch size is also suitable for use in a small room such as a study room or a bedroom.
Although the screen module is not a Sharp origin, but the leakage control is remarkable, color coverage and color distortion are also doing well, in line with product positioning, but also to meet the average user's daily audio-visual entertainment needs.
Shortcomings
The hardware specification is low-end, which is barely enough for playing video only, but it can't be done if you want to play the game. The biggest drawback lies in the network performance, especially WIFI performance, in this regard hope that the manufacturers can improve in the follow-up products.
The backplane mounting holes are in this detail, and it is hoped that the manufacturers can also consider the actual operability. It is better to unify the hole diameter or support the special installation screws. As the end user toss half of the time, it is indeed very depressing to find that the installation is not going up. thing.
From the overall test performance point of view, SUNGPO 40A11A as a pure TV product, compared to their own price positioning performance is still good, but the overall performance of its built-in intelligence system is not satisfactory, it is difficult to judge this through these two points The key to product quality is consumer perspective. Whether you want to buy a "TV with an intelligent system" or a "smart TV" .
In my opinion, the hardware update speed of the intelligent system is too fast, and there is an overall performance upgrade in a few months, and the TV itself is also a durable home appliance. The average household life cycle is more than 3 years, so this will be The combination of the two creates a great contradiction, and you certainly can't change a TV in half a year just like changing a cell phone. And even if you currently buy a smart TV with the latest and strongest hardware configuration, it is very likely that it will be a year later. Performance is in the phase out. So I'm more than happy to put such systems for media playback to an external device such as a box or HTPC, so that the replacement will be very flexible. For the TV itself, it pays more attention to the display performance and use experience.
Product Positioning: If you have a high demand for audio and video playback, apparently SUNGPO 40A11A is not suitable for you, and like I do not require high quality video output, in the study room, bedroom and other small spaces mainly through external devices and the host The user of the entertainment function is still highly recommended.
Finally, I would like to thank SMZDM again for giving me this chance to help me to add a very suitable entertainment partner to my study.