How to check the operating time of a sony TV

How to check your TV for dead pixels.

check, time, sony

So, in order to independently perform a test for dead pixels on a TV, you need to write a set of images with color fills and gradients to a USB flash drive (read how to choose a reliable USB flash drive here, and how they work is written here). I also recommend writing a set of test videos to a USB flash drive, which will help you not only conduct a test, but also evaluate the sound quality and capabilities of the built-in player.

Going deeper into the details

It is quite easy to identify a completely inoperative pixel, but a partially defective one is much more difficult. Each pixel is formed from three subpixels (red, green, blue). If one of them stops working correctly, then the dot on the screen will glow with the wrong color. over, in order to catch the “saboteur”, you sometimes have to tinker. try to see the ill-fated point, for example, on the 50-inch screen LG 50UK6510PLB! Fortunately, there is no need to arm yourself with a magnifying glass: it is enough to prepare a flash drive with test pictures in advance that will identify the pest in any color range. Rarely, but still there are pixels that work incorrectly only periodically (when a neighboring point lights up with a certain shade). You can catch them using patterned pictures: with stripes, a grid, evenly alternating shapes. Malfunctioning elements will stand out in the general row. For testing a 4K display, this selection of images will come in handy.

Backlight uniformity assessment

The full-screen black fill will allow you to evaluate the uniformity of the backlight. It is necessary to pay attention to the presence of “blown” areas in different parts of the display. Some differences are allowed on LCD TVs, but if white spots are clearly visible on a black screen, this is a reason to look for a better copy or another model. As in the case of dead pixels, most manufacturers do not consider this a defect, so it will be almost impossible to exchange a TV based on uneven backlighting.

Detection of colored “spots”

White fill is no less important. Here it is required to assess the presence of colored “spots” on the screen. most often they look like pinkish or greenish areas on an even white color (the so-called tint). This “coloration”, which has arisen in the matrix, will remain on top of the main image, therefore, devices with such a defect should be avoided. As in previous cases, many manufacturers will not consider the presence of “spots” a sufficient reason to exchange or repair the TV. At the same time, it does not hurt to check for banding, which manifests itself in the form of stripes of a different shade. When watching regular TV programs, it will be noticeable in uniform areas as you move the camera. To identify this drawback, you need to submit a uniform field of any color (gray, green, purple) to the screen from the same flash drive.

Technically, tint, highlights and banding are not a marriage or a breakdown. Finding an LED TV is almost impossible without them. But the intensity of the interference can be different. you should choose a device with minimally pronounced image defects.

Despite the assurances of marketers who paint cosmic refresh rate figures in technical specifications, finding an “honest” 100 Hz TV is still not easy today. If before buying it was not possible to accurately determine the model of the matrix and find out its real capabilities, the popular “pencil” test will come to the rescue. To carry it out, you will need to submit a very light picture, preferably white, to the display. Then take a pencil or any long and thin object and wave it in a semicircle 10-15 centimeters from the screen. If the individual contours of the pencil are not visible, there is no flicker. If you can see several “pencils”. the manufacturer clearly drew a zero to the real sweep frequency, and the flickering of this instance will tire the eyes during prolonged viewing. You can verify the effectiveness of such a test using the example of a 100 Hz display Samsung UE40MU6103UXRU, placing it next to any 50 Hz model.

You shouldn’t place high hopes on ten-watt acoustics, squeezed into the thin case of a modern TV. Of course, the speakers with the Sony Bravia KDL40WD653BR bass reflex sound quite decent for their dimensions, but they cannot promise the level of a home theater. Therefore, it is enough just to check the sound for rattling using high-quality samples. At the same time, it makes sense to test the smoothness of volume control from the remote control along with the instant mute function.

USB ports are simply tested with the same flash drive with pictures to identify dead pixels. If the TV has two or more connectors (like, for example, the LG 43UJ630V), nothing prevents you from checking them all one by one. If you plan to use Smart TV with a keyboard and mouse, it is better to take them with you. It may turn out that even if the USB connectors are known to be working properly, the existing kit will not be compatible with the TV. Here you have to either put up with it, or find a suitable replacement without leaving the checkout.

The headphone jack can be checked even with a smartphone headset. its capabilities are quite enough to get a general idea of ​​the performance of the 3.5 mm jack. Well, if you don’t want to bother with the wire, then we take our wireless headphones and test the Bluetooth connection, since modern TVs are equipped with such an interface. And to unfold the 49-inch screen of the Samsung UE49MU7000UXRU hanging on the wall every time you want to watch a movie with headphones is a dubious pleasure.

Types of dead pixels.

  • Type 1. white pixel on a black background;
  • Type 2. black pixel on a white background;
  • Type 3. colored (red, blue, green). Usually this is a problem with subpixels.

To make it clearer for you, I compared the defective pixels using the table.

By the way, the product class directly affects its cost. For example, a smartphone from one manufacturer costs 800 €, and a smartphone superior in all respects from another manufacturer may cost a third less.

Allowable number of dead pixels.

The permissible number of dead pixels on the liquid crystal matrix is ​​determined using a special specification ISO 13406-2 (in Russia. GOST R 52324-2005). It should be said that this document contains about 150 pages and regulates not only defective pixels, but also defines a number of other requirements such as the degree of reflection, the level of brightness and contrast, readability of the text, fill factor, uniformity of backlighting and color fills, flicker and glare

Nowadays, all eminent brands and manufacturers adhere to the ISO 13406-2 standard, because creating a liquid crystal matrix is ​​a very expensive and time-consuming process, and you can test the assembled panel for defective pixels only after complete manufacturing. In this regard, manufacturers try to reject such products as rarely as possible, referring them after the test to one of four quality classes. The ISO 13406-2 specification itself defines four classes (class I, class II, class III or class IV).

Recovery of dead pixels on a TV.

Nothing in this world is perfect and any digital technology can fail, and the liquid crystal panel can over time upset the owner with the presence of dead pixels. What to do in this case? I think you understand that defective pixels that were formed as a result of the failure of a thin-film transistor cannot be restored on their own. But you can bring the so-called “stuck pixels” back to life. You can try to “treat” the broken pixels by software or mechanical means. But not one of them gives a 100% positive result.

READ  How To Check The Sound On A Laptop

Dead pixel treatment software.

The first step is to try to bring the stuck pixel back to life programmatically. Using specialized programs is safer than physical treatment. I know about two of the most efficient and really working utilities. These are Bad Crystal and JScreenFix. Both of these programs are paid, but the cost of the issue is not great.

If you are not sure that the Bad Crystal program will help you, then on the developer’s site there is a test to assess the chances of recovering dead pixels. The site also has a section with frequently asked questions and reports on testing the utility, as well as technical support. This is a very decent and functional program that supports Plasma, LCD, LED, OLED and 3D screens, increases the lifespan, repairs up to 90% of defects, removes a frozen pixel in 10 minutes (in some cases, the process can take about 48 hours) and has a simple and clear interface.

The JScreenFix program is also very popular, which, according to the developers, helps not only to find dead pixels, but also in 80% of cases it manages to recover them. The program will guide you step by step until the complete restoration of defective pixels. The utility performs high-speed color switching of each pixel, which allows you to bring the stuck pixel back to work.

The developers claim that the program is able to return everything to square one within 20-30 minutes, and in more severe cases, they recommend leaving the program in operation for 8-10 hours. If there is no positive result, they recommend repeating the process. Also, this software solution reduces screen burn-in and improves display quality.

Physical treatment of dead pixels.

If the software failed to restore the defective pixels, then you need to massage the TV / monitor. Take a match and wrap a cotton swab on it (you can use an ear stick), turn off the TV and start a slow and gentle massage in the area of ​​the dead pixel. Do not press hard, but perform circular movements with feeling. Thus, by massaging the area with a stuck pixel, you can restore it to the desired position and it will begin to function correctly. Repeat the procedure if necessary.

How to Perform a Self Diagnostic Check on Your Sony BRAVIA TV

Just do not overdo it and do not massage the panel with your fingers, and even more so do not touch it with sharp objects, otherwise you will add a dozen more dead pixels to the matrix. I must say that this type of dead pixel recovery is not safe and you do all the manipulations at your own peril and risk.

On this I will end the article. I hope the prepared material was useful for you and easy to understand. If you have something to supplement the publication or want to express your opinion, then you are welcome in the Комментарии и мнения владельцев. Until!

If you find an error, please select a piece of text and press CtrlEnter.

Sony Bravia TV: How to Factory Reset Back to Original Default Settings

External inspection upon purchase

First, check the packaging for various damages (dents, breaks), if during transportation there were any blows to the packaging, then the TV got it. Then you check the presence of all correctly completed documents, such as a passport for the device, a warranty card. The coupon must be filled out correctly by the seller (warranty period, date of sale, stamp), the serial number on the coupon must match the number on the TV.

Check the external condition of the TV and the remote control. Look for scuffs, chips, cracks, etc. The screws on the back of the TV must not be tampered with, otherwise your TV was already on sale and being repaired.

By the model name, serial number and product code, you can find out where and when this TV was made and for which country.

After that, you can turn on the TV and check its operation. correct operation of the remote control, work with external sources (USB flash drives, players, etc.). You can take your own flash drive by pre-recording high-resolution videos on it, and pictures to check for dead pixels.

Check for dead pixels

When forming a picture on the TV screen, all display pixels must be involved. With a Full HD screen resolution, the entire display field consists of 1920 x 1080 pixels, which is just over 2 million points.

According to the rules, a certain number of non-working pixels is allowed, different norms allow a different number of defective pixels. So, having identified this defect at home in the form of one or two non-working pixels, you will not be able to return the TV back, so it is better to do this check before buying.

To search for defective pixels, you need to submit an image with a specific picture to the screen and examine the screen from a close distance. You can also use a magnifying glass. You need to look for a pixel that glows in a different color from all the others. The image must match the screen resolution exactly.

Completely inoperative pixels, those that do not respond to the signal and are in a constant position, can be found in a uniform picture (filled with one color). White, black and primary colors (red, blue, green) pictures are alternately fed to the screen and pixels of a different color are looked for on them.

Inoperative pixel on black background Inoperative sub-pixel on screen

There are such defective pixels that start to work poorly when the matrix heats up. You can identify them after the TV has been running for a while.

There are pixels that do not work correctly depending on the work of neighboring sub-pixels. You can find such defects if you submit a picture on the screen in the form of a checkerboard fill, color stripes, gradations, a grid. Incorrectly working pixels will stand out from the general structure of the picture.

The necessary pictures for checking the picture on the TV can be downloaded here. Resolution of verification images 1920 x 1080 pixels.

To test Ultra HD 4K TVs test pictures here.

How to use these images can be read here.

QR code

On modern TV models, you can find a sticker with a QR code. The encrypted image contains information about the device. To read the identifier, point the camera of your mobile device at QR. For identification, you will need an application for working with QR codes, which can be downloaded from the Playmarket.

Philips

Philips took a different path. To obtain the necessary information, you will need to quickly dial the code using the remote control. Follow the instructions:

  • Turn on the device. Switch the TV to the mode of viewing terrestrial channels, it is not necessary to have a cable, digital connection to TV (channels may not be shown).
  • Quickly enter the key sequence “1, 2, 3, 6, 5, 4”. In case of an error, nothing happens, try to repeat the set.
  • The service menu will appear on the screen. Click on the “Set Type” tab.
  • The exact model identification code of the TV will be displayed. Write it down.

If the service menu does not open, try to re-enter the key sequence, follow the standard algorithm.

You can also find out your Sony TV model through the service menu. Your actions depend on the specific model. If the TV has Android with earlier software versions up to 3.533, the algorithm is as follows:

  • Turn on the TV, press the “Home” button.
  • Select the settings tab.
  • Follow the section “TV”. “About the device”.
  • Help information will be displayed, click on the item “TV Name”, “System Information”.
  • The window will display the serial number of the device (code identifier).
READ  Sony wi c300 how to connect

With the newer models, things are a little simpler. Press the “Help” key on the remote control and enter the system information section. There you will see service information, including the model number of the device.

If you are using a TV without smart functions, the procedure is as follows:

  • Press the “Home” key on the remote control.
  • The settings menu will open, you need the “Help” item.
  • Go to the customer service section.
  • Help information appears on the display. The model name is located at the top, on the right.

Another alternative way to find out the model, check the serial number and hours of operation of your Sony Bravia TV (for models older than 2016) is with the TV turned off, using the remote control, press successively: i. 5. VOL-. Power (On).

On the official website, the manufacturer warns: “The algorithm may differ depending on the device and software.”.

System menu

If none of the above methods worked, the internal menu comes to the rescue.

The exact information about the device model is registered in the settings: the current software version, information about the manufacturer. The arrangement of items in the control menu is different for different devices. Developers and manufacturers do not adhere to the same structure. Before proceeding with searches, make sure that:

  • You know the brand of the TV. The label on the front bezel is usually present.
  • The device is in working order and the screen is not damaged.

You will need a remote control and a few minutes of free time.

Samsung

You can find out the model through the menu on Samsung TVs released in 2008 and later. Older devices do not contain such information.

The menu of modern TVs is standard. Samsung maintains a consistent interface across its devices. Let’s get started:

  • On the remote control, press the button to go to the settings menu. The key is depicted as a gear.
  • In the options window, select the “support” tab.
  • An additional menu will open, among the options, click “Contact Samsung”.
  • A window will appear in which the identification code of the model will be registered, useful information from the manufacturer. contacts, the current website of the company on the Internet.
  • We need a parameter called “Model Code”.

In order not to forget in the future, write down the sequence of symbols on a separate piece of paper. It is better if it is self-adhesive, which can be stuck in place of the sticker that has come off. Or enter the information on a blank sheet of the service book.

Sometimes the manufacturer provides universal documentation that is intended for a number of models. But there is usually a note sheet at the end. Here in it and write the data.

For LG owners, the procedure is similar to Samsung. Information is contained in the settings menu:

  • Turn on the TV.
  • Press the “MENU” or “HOME” key.
  • A standard menu will appear, among the parameters, select the diagnostics item, “Contact”.
  • Click the TV details section.
  • The type, model name will be displayed in the form of an encrypted code consisting of numbers, Latin letters.

In the window that appears, the current version of the software, the serial number of the device, communication channels with representatives of the LG manufacturer (phone of the hot mowing line, website address) will be registered.

This method is suitable for models under 2011 release.

How to find your TV model number. all ways

Any TV set at the factory is assigned a unique name, an identification code by which you can find out the characteristics of the device.

I want to tell you about all the ways to detect this code and help you find out the models of TVs from Samsung, LG, Philips and Sony. I will also teach you how to decipher codes.

If you are too lazy to read the article, you can watch a video from Samsung:

And if this information was not enough,

Technical documentation

Each device is supplied with technical documentation and a warranty card. The instructions describe in detail the capabilities of the TV, its setting and, of course, the model number. Try not to throw out documents, they can come in handy.

I have repeatedly come across problems with the resale of equipment when buyers took the device without technical documents. This is inconvenient when configuration is required. Therefore, keep your documents in a safe place.

How to flash a Sony TV yourself: instructions

Sony TV firmware can be updated in two ways: via the Internet and using a USB drive.

Manual download of updates directly via the Internet from the TV menu is as follows:

  • Check for new software versions.
  • Check out the content of the update offered by the TV.
  • Select “Yes” to continue.
  • The device will estimate the size of the downloaded files and report the estimated download time.
  • Confirm the start of the download.

During boot, the device can be used normally. When the TV completes it, it will offer to start the installation process.

Software installation takes an average of 30 minutes, during which you cannot use the TV, turn it on or off, or press any buttons on the remote: this can lead to a serious failure and the need for professional repair.

If you do not have the opportunity to connect your TV to the Internet directly or for some reason you do not want to use the above method to update the software of your TV, then you can download the required firmware version from a USB flash drive.

It is recommended to download the update from the official Sony website. Please refer to your TV model number to find the files you want. You can see it on the sticker in the lower left corner on the back of the device. The number consists of a 10-digit alphanumeric code.

To download the firmware to a USB flash drive and install it on your TV, use the following tips:

  • On the Sony website, enter your TV model in the search bar.
  • Go to the “Product Support” tab.
  • Select “Downloads”.
  • Click on the latest available software.
  • Transfer the downloaded file to a USB drive with a capacity of more than 1 GB.
  • Insert the USB stick into the TV.
  • In the TV menu, select “Software update from USB media”.

Further installation of the firmware from a USB flash drive does not differ from the update downloaded via the Internet directly from the TV.

Is it possible to flash a Sony TV myself?

Sony TVs are some of the best in the electronics market. The secret of their popularity lies in their versatility: in addition to conventional analog and digital television, they support the installation of applications, playback of multimedia from a USB drive, and Internet access. With the expansion of opportunities, new needs also appear. Like a computer, the Japanese company’s TVs need systematic software updates.

What is firmware and how to determine its version on a Sony TV?

The firmware of the TV is understood as the built-in program that controls its hardware. Interacting with the device, the user sees a firmware shell in front of him, thanks to which he “communicates” with the device.

There are several reasons to update your device’s firmware to the latest version:

  • improved stability of work;
  • acceleration of “response”;
  • the emergence of new and optimization of current functions;
  • bug fixes for previous versions.

To get the most out of your Sony TV, you need to be constantly on the lookout for updates. This can be done automatically or manually.

If you have a permanent Internet connection, the best solution would be to set up an automatic check for updates to your TV. To check for the latest software and enable or disable the device’s ability to download it yourself, follow these steps:

  • Turn on the TV.
  • Press the HOME button on the remote control.
  • In the menu that appears, select the “Settings” section.
  • Go to the Help menu.
  • Scroll down to “System Software Update”.
  • Use the “Check for system update” function.
  • If necessary, change the value of the “Automatic software download” parameter to “ON” or “OFF”, respectively.
READ  Check Laptop For Viruses Online

After following the above instructions, the TV will check the available software and, if a new version is detected, it will offer to update.

Problems with firmware. why it doesn’t work?

Possible problems with updating the firmware most often occur during the download or installation phase of the software. The most common among them are:

  • the TV does not automatically update the software, although this function is enabled;
  • the device does not see the flash drive with the update;
  • error downloading or installing firmware;
  • TV stopped working after update.

If you encounter any problem during the software download phase, you need to check your internet connection. If the network is working properly, and the TV is not being updated, then perhaps the firmware for your model has not yet appeared in the public domain.

When the device does not see the USB stick, make sure that the USB stick you are using has one partition, which is formatted with the FAT32 file system. Also, problems may lie in the device connector itself.

If you cannot find an obvious cause for your problem, contact the service center. It is better to refuse the idea of ​​self-repair.

Flashing a Sony TV is not a complicated but responsible procedure. If you are not sure that you are ready to carry out it personally, then it is recommended to entrust the system to carry out it yourself by enabling the automatic update function.

External inspection upon purchase

First, check the packaging for various damages (dents, breaks), if during transportation there were any blows to the packaging, then the TV got it. Then you check the presence of all correctly completed documents, such as a passport for the device, a warranty card. The coupon must be filled out correctly by the seller (warranty period, date of sale, stamp), the serial number on the coupon must match the number on the TV.

Check the external condition of the TV and the remote control. Look for scuffs, chips, cracks, etc. The screws on the back of the TV must not be tampered with, otherwise your TV was already on sale and being repaired.

By the model name, serial number and product code, you can find out where and when this TV was made and for which country.

After that, you can turn on the TV and check its operation. correct operation of the remote control, work with external sources (USB flash drives, players, etc.). You can take your own flash drive by pre-recording high-resolution videos on it, and pictures to check for dead pixels.

Check for dead pixels

When forming a picture on the TV screen, all display pixels must be involved. With a Full HD screen resolution, the entire display field consists of 1920 x 1080 pixels, which is just over 2 million points.

According to the rules, a certain number of non-working pixels is allowed, different norms allow a different number of defective pixels. So, having identified this defect at home in the form of one or two non-working pixels, you will not be able to return the TV back, so it is better to do this check before buying.

To search for defective pixels, you need to submit an image with a specific picture to the screen and examine the screen from a close distance. You can also use a magnifying glass. You need to look for a pixel that glows in a different color from all the others. The image must match the screen resolution exactly.

Completely inoperative pixels, those that do not respond to the signal and are in a constant position, can be found in a uniform picture (filled with one color). White, black and primary colors (red, blue, green) pictures are alternately fed to the screen and pixels of a different color are looked for on them.

Inoperative pixel on black background Inoperative sub-pixel on screen

There are such defective pixels that start to work poorly when the matrix heats up. You can identify them after the TV has been running for a while.

There are pixels that do not work correctly depending on the work of neighboring sub-pixels. You can find such defects if you submit a picture on the screen in the form of a checkerboard fill, color stripes, gradations, a grid. Incorrectly working pixels will stand out from the general structure of the picture.

The necessary pictures for checking the picture on the TV can be downloaded here. Resolution of verification images 1920 x 1080 pixels.

To test Ultra HD 4K TVs test pictures here.

How to use these images can be read here.

Non-uniform screen illumination

When a video signal with a uniform color fill (painted in one color) is input to the TV input, the screen must have this color without any color shades. But, due to the technological peculiarities of manufacturing displays with LED backlight, such a uniform illumination is difficult to achieve. Therefore, it is advisable to check the uniformity of the color field before purchasing. Usually such a defect is not considered a breakdown and the TV cannot be returned or repaired.

Such screen defects are called banding, flashing and tint.

Tint can be translated as “color tone” and it shows how correctly white is displayed on the screen. When watching a regular video, you may not see this defect, because the picture is constantly changing there. But if the picture is static, then the interference can be very noticeable and interfere with normal viewing.

To identify the tint, you need to submit a white or gray field to the screen. Interference in the form of stripes, spots and other shapes, painted in a different tone, against a uniform background, may indicate the presence of a defect in the tint. Such noise is usually pink or greenish in color and is located closer to the edges of the screen.

If the defect is very noticeable, then it is better to choose another TV.

The tint is large and clearly visible. Allowable interference level.

Invalid banding level

Only LED TVs can have glare. To assess the quality of the display by the level of illumination, you need to do this in a completely dark room (turn off the light and shade the windows). In this case, you need to select the maximum backlight level on the TV, for this you can select the appropriate mode (it can be called “bright”, “dynamic” or in another way). You need to disable image enhancement modes such as Dynamic Backlight, Black Level Correction, Eco Sensor, and others. This is done so that the TV does not adjust the backlight when checking.

But even so, errors may occur due to the automation of the TV receiver, when a completely black frame is fed. Indeed, with a black picture, the TV turns off the backlight. Therefore, to detect highlights, it is better to submit a black picture with some bright elements, for example, white titles on a black background at the end of the film.

Then look from a distance for screen glare, especially in the corners. Some minimal highlights are fine for normal viewing.

Invalid backlight level

Finding an LED TV completely free of these defects (tint, banding, lightning) is unlikely to work, but you need to choose a model with a minimum level of these interference.