How To Turn On The Screen On LG TV

We display the image over the air from a tablet or phone (Android) to a TV using Miracast technology (without wires). Using the Asus tablet and LG TV as an example

Now it is possible to prepare a very useful and relevant article on setting up a wireless screen on tablets and phones that run on the Andriod operating system. With the help of Miracast technology, we will display the image from the tablet on the TV. All this will work over the air, that is, without wires.

Now, a large number of modern TVs that have Smart TV functions and have the ability to connect to the Internet via Wi-Fi, also have the ability to work as wireless screens using Intel WiDi technology, or Miracast. You can read about these technologies in more detail in a separate article How to display an image from a laptop, smartphone, or tablet to a TV over Wi-Fi? TV as a wireless monitor [Intel WiDi and Miracast]. But, there I wrote more about theory, but in this article there will be only practice.

So, this means that the TV can receive an image through the air. And our tablets and smartphones that run on Android are most likely able to transmit this image using Miracast technology. In the settings, this is called a wireless screen.

What does all this give us? We can connect our tablet or phone with a TV and everything that happens on the screen of a mobile device will be displayed on the TV. And all this wirelessly. In this way, you can display the photo on the big screen, or. Watch online. or play games on your tablet and display it all on your TV. There are some nuances, which I will write about below, but all this can be done, and now I will show how.

I just took a photo, screenshots, tested everything, checked it and now I will share it all with you. Everything using a real example, as always!

What do we need?

  • The mobile device from which we will display the image on the TV. Tablet, or smartphone on Android. Not all Android devices can work with Miracast technology (wireless screen). But, according to my observations, almost all modern devices can do this.
  • A TV that will receive images using Miracast wireless technology from a tablet or phone. Modern TVs can do this. If your TV has built-in Wi-Fi (or external receiver). and there is a Smart TV function, then most likely it can output an image wirelessly.

I will show on the example of the LG 32LN575U TV and the Asus MeMO Pad 10.

To set up such a connection, a Wi-Fi router is not needed, compared to setting up the transfer of medical content via DLNA.

Using wireless image transmission in practice

I played around a bit and tried to understand what this technology can really be used for. The problem is that with such image transmission, there is a slight delay. That is, the page has already opened on the tablet, and on the TV it appears in a second, roughly speaking.

Perhaps, on more expensive equipment, this delay will be less, but it will most likely be. For displaying photos on a big screen, this kind of connection is great. All without wires, as we love.

Sites can be viewed, or, for example, viewed online.

By the way, I ran it on a tablet, it is displayed well on the TV. Although with a delay, the sound goes in sync with. Sound, by the way, is transmitted too.

Tried playing games but the delay is a little annoying.

We connect the tablet and TV for wireless image transmission

All we need to do is turn on Wi-Fi on the tablet, turn on Miracast on the TV and connect the devices.

Turn on Miracast / Intel WiDi on LG TV

I will show on the example of LG TV. If you have a non-brand TV, this feature may turn on slightly differently. On the menu, it may be called differently.

Turn on the TV, and press the SETTINGS button on the remote control to enter the settings.

In the settings, go to the Network tab and select Miracast / Intel’s WiDi.

Next, turn on Miracast. Just flip the switch to On.

Everything, the TV can be left for now. But, don’t turn it off.

Turn on the “Wireless Screen” on a tablet or Android smartphone

We take our tablet (in my case). and go to settings.

In the settings, immediately turn on Wi-Fi, and go to the Screen (DisPlay) tab. On the right, select the item Wireless screen (Miracast).

Turn on Miracast by setting the switch at the top to the On position. Below, your TV should appear. Its name will be there. To start wirelessly transferring images to your TV, just click on the TV’s name.

We return to the TV. There should be a request to connect the device. Just confirm the connection by choosing Yes. If you want this device to be connected without a request in the future, check the box next to the item “Connect automatically without request”.

Then the connection status will go, check and the devices will be connected. An image from the tablet appears on the TV.

Everything is ready! You can use.

To turn off the broadcast of the image on TV, just click again on the name of the TV and select Ok.

We reconnect according to the instructions.


An excellent technology that allows you to display the picture that you see on your tablet or phone on the big screen without any wires. Everything connects without any problems and works flawlessly. At least I didn’t notice any problems.

The only drawback is the delay in updating the image on the TV. It is difficult to play games, but you can see a photo, or. you can. Display some kind of presentation on TV, no problem at all.

Why does the TV screen dim automatically?

One of the reasons is energy conservation. TVs try to reduce energy use by reducing screen backlighting in scenes that are still very dark because they are dominated by blacks. They can also do this based on external brightness sensors (for example, on Samsung TVs, this option is called “ECO sensor”). When the room is dark, the TV will dim because a high level is not important. These types of options can usually be turned off in the TV settings by disabling all power saving features.

However, this is not all. Auto dimming in dark scenes is mainly due to the characteristics of the IPS or PLS matrices used in most TVs over the past few years. Such matrices have obvious advantages. wide viewing angles or pleasant color reproduction. They also have a rather large drawback, which is poor black reproduction and uneven screen illumination (compared, for example, with VA panels), which is most noticeable in dark scenes.

Manufacturers of TVs using IPS or PLS matrices try to “hide” this disadvantage by forcing to decrease the brightness in scenes in which very dark colors prevail. When the screen brightness is lowered, you may not be able to see very faint black or uneven backlighting. However, this is annoying when playing or watching movies where the screen dims and brightens depending on what is shown on the TV.

How to deal with this? First of all, enter the usual TV settings, and then turn off all the power saving functions, automatic brightness control, eye care and the like with the “Eco” entry. However, this does not always help, as seen on some LG TVs.

Force blackout on select LG TVs

Many users of LG TVs released in recent years still experience screen dimming in darker scenes even after turning off the power saving feature. As an owner of LG TV (model from the end of 2014), I can only confirm this, unfortunately.

This is due to the fact that in these models in the service menu of the TV the option “Dimming” is always enabled, which reduces the screen backlight in darker scenes, possibly to hide the weaker black.

This can be seen in situations such as the following screenshot from the Bloodborne Character Creation menu on PS4.

As long as most of the screen is filled with colors or lighter shades, the screen remains highlighted. But as soon as additional menu claps are in the game, which, for example. In the middle of the screen, a black or very dark background with a list of options is displayed, the entire screen is darkened because the television detects a large black color.

The same thing happens in films, for example during scenes in dark rooms or at night. The solution is to disable the “Dimming” option by going to the service menu.

How to Disable Auto Screen Dimming on LG TV

Do you have an LG TV that automatically dims the screen in darker scenes while playing or watching movies? This is the so-called “dimming” function, which can be disabled accordingly using the service menu. Here’s how to do it.

READ  Samsung Smart TV How To Watch Movies

Most TVs with IPS or PLS have an automatic brightness control function. The screen appears to be dominated by dark colors, the TV automatically dims the backlight level, and the picture is dimmed. After switching to a lighter scene, the screen returns to normal, i.e. to custom settings.

On most TVs, this can be turned off through the settings by turning off the power saving feature. In LG TVs, however, this is often used and changing the settings does not always help. Let’s see why this is happening and how to disable it.

Turning off the screen backlight on your LG TV using the service menu

Attention! You do this at your own risk. The service menu is not intended for the general user as it has many parameters that affect the operation of the TV. Disabling the dimming option won’t cause any problems, but be careful not to change anything else.

The easiest way to enter the service menu is to use a smartphone or tablet with an infrared sensor (IrDA). Contrary to looks, quite a few Android devices have this option (paradoxically, we often find it in slightly older than newer models). When you have an IrDA device, download the AnyMote app.

Download AnyMote Universal Remote from Play Store

After launching AnyMote, you must add a new remote control. On the Add New Device screen, select the TV option. Search and select LG from the list of available TV brands.

Then you need to select the type of remote control. Select the one marked as “Service console”. This is a remote control that allows you to activate the service menu.

It is necessary to enter a service menu indicating the source on the screen for which we want to disable screen dimming (for example, HDMI1 for a decoder or HDMI2 for a console). If you disable the “Dimming” feature on an “empty channel” then it will still work while watching movies or playing on the console. Therefore, turn on the movie or run the game during all settings so that the image is displayed in the background when you call the service menu.

Point your smartphone at the TV, then tap “IN-START” at the virtual remote control in the AnyMote app. The TV screen will ask for a PIN code to access the service menu.

Enter PIN code 0413 using your regular TV remote control. The service menu appears on the screen. Use the arrows on your regular remote control to navigate to the System 1 tab.

Search for options here “Blackout”. It will be set to “On” by default. Change its value to “Off” and then exit the service menu by pressing the “Back” button on the TV remote control.

Screen dimming is now permanently disabled and will no longer occur. Now, during dark scenes or a lot of dark color, the backlight will not turn off.

If after connecting another source (decoder, TV-box, console) it reappears, then return to the service menu and turn off the “Dimming” option for the new source.

What to do if the IN-START button in the AnyMote app doesn’t work?

If the IN-START button does not work, then on the AnyMote main screen, tap the gear icon in the upper right corner to enter the application settings. In the settings, find the sections “Additional settings”.

Here you will find an option named Msgstr “Use alternate Ir commands”. Activate this option because it is possible that your smartphone is not sending commands correctly or is incompatible with the TV without it. Activating this option should enable Compatibility Mode so that the likelihood that the virtual remote control will work correctly.

After activating this option, try LG Service Remote again and press the “IN-START” button again. This time, the command must be sent correctly, and the screen will ask you to enter the PIN code into the service menu.

Cable problem

If the broadcast volume is normal and the screen is dark, then it is worth testing the antenna cable and HDMI cable. It may well be that the reason is the provider’s dishonest work or the breakdown of the cable TV set-top box. The Moninfo utility will help you detect possible crashes.

You also need to check the quality of the connection of the cable contacts and their integrity. To do this, it is recommended, with the TV turned off, to pull out and re-insert the plugs of the antenna wires and the electric cable into the connectors. If the problem lies in the quality of the HDMI cable connection or connecting wire, then it is enough to restart the set-top box or replace the docking cable.

Additionally, you need to pay attention to the router. is the indicator flashing (the connection to the Internet may have been interrupted). And if the cable connector itself is “loose”, then the replacement should be done as soon as possible. Damage to cable insulation is extremely dangerous and fraught with closing the contacts of the equipment. In addition, the user may be injured.

Power supply does not work

If LG technology has sound, but there is no image or the picture jerks, then the problem lies in the breakdown of the power supply. You can independently carry out the following series of manipulations.

  • Turn off the TV from the network. This will discharge the capacitors. Next, you need to unscrew the fixing bolts and remove the back cover. Check cables and cables for damage. It is also worth paying attention to the performance of the buttons and fuses.
  • Inspect the power supply for melted or damaged resistors and capacitors.
  • Measure the voltage of the output circuits of the power adapter. Indicators must correspond to those specified in the instructions.
  • Tap gently on the TV cabinet. In the case of the normalization of the operation of the equipment, it is worth carrying out a full diagnosis of the power supply. Poor adhesion may be the cause.

In this case, it is best to seek help from a master or the nearest service center, since improvised tools can aggravate the breakdown.

Types of problems

The most common causes of missing images on Korean LG TVs are:

  • the equipment broadcasts sound, but the image itself on the screen has disappeared;
  • the screen is black;
  • the backlight does not work;
  • distortion of the image;
  • dullness and dimness of the picture;
  • periodic disappearance of the image or the screen goes blank;
  • color reproduction in green or black and white.

LG TV has sound but no picture: reasons and repairs

Sometimes even high-quality equipment can fail. It is very unpleasant when the TV works, but like a radio. In some cases, you can make repairs on your own, but you may need the help of a specialist. First, you need to figure out why LG TV has sound, but no picture. What are the reasons?

Matrix loop

Signs of malfunction of the matrix loop:

  • the TV does not show the image, the picture periodically disappears;
  • the appearance of ripples or interference in the broadcast;
  • the display on the screen is distorted. stripes or duplication of the picture.

It will definitely require repairs in the technical center. The breakdown can be eliminated depending on the specifics of the loop damage. At an early stage, the detected malfunction is eliminated by soldering the damaged sections of the element. Otherwise, you will have to replace the part completely.


The SIMplest thing that an average user can do is to conduct a visual inspection of the equipment. Within reasonable limits, it is permissible even to disassemble the TV and carry out its internal cleaning. How to independently detect breakdowns?

  • Discharge of capacitors by disconnecting equipment from the network.
  • Opening the back cover of the TV.
  • Inspect cables for possible kinks and breaks.
  • Inspect the power supply for swelling and melting of capacitors or resistors.
  • If you have special tools, you can measure the voltage of the input circuits of the power supply.
  • Gently tapping the TV case, you can understand the quality of the soldering of the modules and wires (if the technician reacts by blinking during manipulations).


Failure of the matrix

This is perhaps the most common cause of breakage. In this case, the image can “jump”, the picture can be only half the screen, or the monitor “stripes” with all kinds of rainbow colors. The matrix tends to break due to moisture ingress, strong impact or falling. The component can also fail due to short circuits.

In this case, it is impossible to make repairs with your own hands. So, if the reason is mechanical damage to the matrix, then you will have to change it to a new one or purchase a new TV. Nevertheless, if the picture “becomes cloudy” or doubles, then the repair is carried out in the service center without replacing the part. With due experience, the matrix can be replaced independently. But the difficulty lies in the ability to find an original quality part. Otherwise it is a waste of time and money.

Burnt capacitors

Strong voltage surges in the network greatly affect the operation of capacitors. The main symptom that the capacitor is broken is the dimming display. Also, the transmission disappears immediately after switching on or after a short time the picture begins to double, the brightness may disappear.

If you disassemble the device itself, then you can see a swollen or exploded capacitor on the board. The fuse also blows out. By the way, after a power surge, the TV’s power supply does not turn on first. In this situation, you need to turn to specially trained people for help. If the breakdown is not eliminated in time, the problem will become more complicated, since it will lead to a breakdown of the power supply.

Utility functions for LG Smart TV

Consider all the opportunities that are open to interactive television subscribers from Rostelecom. All of them will become available when the application is installed on an LG TV. Their list is as follows:

How To Turn On The Screen On LG TV
  • The ability to fully control the viewing. The functions of pause, rewind, broadcast recording are implemented. And, most importantly, you can turn on any program that was already on the air and preserved in the archive. This is available for almost all channels;
  • Advanced parental controls. You can configure both general parameters and options for individual TV channels;
  • Combining the service for use on multiple devices. It is available on TVs, smartphones, tablets and even computers;
  • High image quality. The presence of channels in both normal quality and HD. As well as 3D format;
  • An impressive collection of films and TV series for every taste, available free of charge when connecting to most Rostelecom tariff plans with television (Wink);
  • Viewing the program guide and their descriptions;
  • Controlling the app and the device with one remote control (if you have a set-top box).
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How to connect LG TV to the Internet

The first step before connecting Wink is to connect your TV to the Internet, if you haven’t already. Wi-Fi or LAN connection by wire is allowed. Consider both options.

Most often, users use a wireless connection. This saves space in the apartment, and is also carried out in a few clicks. It is recommended to adhere to the following aLGorithm:

  • Press the “Settings” button on the remote. It can be either a gear image or a corresponding inscription.
  • Go to the network section and select “Network Connection”.
  • A connection window will open. Here you can familiarize yourself with the available options, then click on “Set up a connection”.
  • Choose a suitable Wi-Fi network. If necessary, you can configure it manually or update the list.
  • Now enter the password if it is set on your router. Then click on “Ok” to check the correctness of the entered combination.
  • If everything is done correctly, the TV will inform you about a successful connection. It remains only to select “Finish” and start using.

It is worth noting that on some LG TV firmware, the interface may differ slightly. However, the general principle of action is about the same.

The second method is of lower priority, but it also takes place. To connect the device via LAN, do the following:

How to download and install the app for LG Smart TV

In other cases, you will have to purchase a prefix.

About interactive television service

Interactive TV (Wink) is a modern TV service from many popular providers. It is based on advanced technologies that make watching your favorite shows, movies and TV series more convenient and interesting. Connects both as an independent tariff plan, and in a package with other Rostelecom offers (Internet, home and mobile phone, smart home, and so on).

Supported on both old and new TVs. In the first case, you need to purchase or rent a special attachment. And in the second, it is enough to download a free application and log in using a personal account.

How to use the LG Smart TV app

Control is carried out using the remote control from the TV. The program is divided into several sections, each of which is intended for different purposes. Their list is as follows:

  • A television. The main module that allows you to view all TV channels included in the connected tariff plan. You can sort them, use the search, create Playlists, view the program guide and much more;
  • rental. All films and series provided by the service are located here. Some of them are included in the tariff and are available for viewing free of charge. The rest of the content must be purchased for an additional fee. Funds are debited from the personal account of the subscriber of PJSC Rostelecom;
  • Settings. Manage parental control, delete uninteresting channels and set the necessary parameters;
  • My. This section contains everything that is tied to your contract. These are paid subscriptions, free content, browsing history, and so on;
  • Services. The application developers have taken care of additional convenient tools. This includes the weather forecast, the current exchange rate, city maps showing the level of traffic jams, and even social networks;
  • Control. Here you can find everything that allows you to regulate subscriptions, purchases, and so on.

Possible difficulties and their elimination

No one is immune from problems and errors that may arise while working with interactive TV. Let’s consider the most common of them, as well as methods for solving.

Configuring DLNA on TV (LG Smart Share)

On the TV, just go to Smart TV and select Smart Share (unfortunately, I don’t know how to do this on other TVs, or in models without Smart TV).

Go to the Connected device tab. We already have two DLNA servers there. The one in the form of Windows Media Player is a server created in a standard player (the first method). You can open it and view the files.

The second DLNA server is the one we created in the Smart Share program. We need it. We open it.

We see the available folders. To open our folder, to which we have opened access, then go to the folder All folders.

We open it and run the file we need. In my case, the movie.

That’s all! Settings finished!


If you have any problems with the setup, with the Smart Share program, or you, for example, have another TV, then I have prepared an article on how to set up a DLNA server using the Home Media Server (UPnP, DLNA, HTTP ) “. Which we have already talked about more than once in the comments. Here is the instruction. Set up a DLNA server using the Home Media Server (UPnP, DLNA, HTTP) program. Viewing files from a computer on a TV.

DLNA (Smart Share) setup between PC and TV

We need (required). so that our TV and computer (I have a laptop) are connected to the same network. What does it mean? This means that both the TV and the computer must be connected to the same router.

It doesn’t matter which way they are connected. The TV can be connected both via Wi-Fi (read how to connect in this article /) or with a cable. The computer is the same. For example, my TV and laptop are connected to the TL-WR841N router wirelessly.

Next, we need to set up the distribution of files from the laptop so that the TV can play from the necessary folders, or show photos. We just need to open the emu for this access.

You can even do this with the standard Windows Media Player. Despite the fact that this method has a small minus, we will still consider it.

DLNA Setup Using Windows Media

Just launch Windows Media Player (look for it in the Start Menu). click on the Stream tab and check the boxes next to two items:

  • Allow remote control of the player.
  • Automatically allow devices to play my media.

It’s all. You can already on the TV go to the Smart Share menu (in the case of LG TV) and watch all the media files that are in the shared folders: Music, and Pictures.

Add your movie folder to Windows Media Player

If you set up the server using Windows Media, only the standard folders with. music and images. And the content will accordingly be reflected only from those folders. In order not to copy the necessary films and other files into these standard folders, we can add the folders we need to the library, and they appear on the TV. How to do this, I was prompted in the comments.

Open Windows Media Player and click on the Organize button on the left. Hover your cursor over Manage Libraries and, according to what media content you want to add, select Music Library. or Gallery. For example, I want to add a folder with movies, so I choose.

In the new window, click on the Add button. Select the required movie folder on your computer (in my case). select it and click Add Folder.

In the list, you will see all the added and standard folders. You can add more, or select the one you want and delete.

All movies, or other files that are in the folders that you added to the library, should appear on your TV in the DLNA server created by a standard player.

This method is very convenient, since it does not require the installation of special programs.

Setting up Smart Share

Almost every TV manufacturer has a proprietary program for a computer that allows you to configure access to files (I wrote about this at the beginning of the article). In the case of LG TVs, this program is called LG Smart Share for PC.

We need to download and install this program. You can download it from the official LG website (if you have another TV, then look for SIMilar programs on the manufacturers’ websites). The program is located at the link

For some reason, from the official site, this program was loaded very slowly for me. Therefore, I downloaded it from another site. Here I post it on my website. download. Version 2.1.1309.1101 (possibly outdated). Better to download from the official site.

To install, SIMply run the setup.exe file, which is located in the archive, in the LG Smartshare PC SW DLNA folder. Installation is SIMple, so I’ll skip this process.

After starting the program, select one of the items: Movie, Photo, Music (for setting up the program, it doesn’t matter).

Immediately go to the settings, for this, in the upper right corner, click on the Settings button.

And in the first window, immediately set the switch to ON.

Go to the next tab My Shared Files. This is the most important point.

Here we need to add the folders that we want to allow sharing from the TV.

Just click on the folder-shaped button (see screenshot below). and select the desired folders whose contents you want to view on TV. Click Ok to confirm. Then click the Apply button. The process of adding a folder will begin. If there are a lot of files, then the process can take a long time. We wait.

After that, our folder will appear in the list of available.

This completes the Smart Share setup. If you want, then on the Settings tab of my device, you can also change the name of the device that will be displayed on the TV.

That’s it, the program window can be closed, it will now work quietly and displayed on the notification panel. Also, after restarting the computer, the service will start automatically until you turn it off in the settings where you turned it on.

DLNA (Smart Share) setup on LG Smart TV. We watch movies and photos that are on the computer

I thought for a long time how to start this article, but then I realized that this was not an essay, but instruction # 128578; Therefore, straight to the point!

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In this article I will show you how to set up DLNA technology (it is called Smart LG TVs) and access movies, photos and music on your computer directly from the TV. This is a very useful feature. And if you have a TV that supports network connection and DLNA technology, then you definitely need to use this.

For example: you have a movie on your computer, or photos that you would like to view on TV. How to do it? Yes, you can, for example, connect a TV to a computer using an HDMI cable, but it will be just like a monitor, and there may be no cable.

You can also drop the movie onto a USB flash drive, connect it to the TV and start the movie. Yes, but here you need a flash drive, you need to copy the information. It is much easier to go from the TV to a folder on your computer and just start a movie from there, or watch photos.

Before proceeding with the setup, I want to briefly tell you what DLNA and Smart Share are.

DLNA (in your own words) is a technology that allows devices that are connected to the same network and support DLNA technology to exchange media content (, photos, music).

Now, almost all devices support DLNA technology: computers, TVs, smartphones, game consoles, etc.

Smart Share is a proprietary application (technology) by LG. If I can say so, then this is a kind of shell for working with DLNA. Other TV manufacturers call these programs differently. Samsung has AllShare. SONY. VAIO Media Server.

For example: you can watch photos on your TV that are on your smartphone. I will write about this in one of the following articles. This article is strictly about setting up DLNA between a computer (laptop, no matter) and a TV. Let me remind you that the TV must be able to connect to the network.


The article turned out to be large, but this business is set up much faster. You only need to configure it once. Then we just add new files to open folders.

You can run DLNA on multiple computers or other devices. The main thing is that they are connected to the same network.

Setting up your LG TV

When turned on, the screen “lights up” and then “goes out”

When the LG 32LA620V is turned on, the screen “lights up” and immediately “goes out”, there is sound and if you look closely. The image is like through smoked glass, barely visible. 17.10.2018, Kaliningrad.
10.28.2019 LG 49lf640v Krasnodar Territory There is sound, the image disappears at a frequency of 1 time per second. Tell me about possible malfunctions, as well as the cost of repairs. Thank you in advance.

You have a faulty backlight unit. the lamps themselves, or the lighting control device. You need to contact a service center to repair your LG 32LA620V TV.


How to tune your LG TV to receive digital TV channels

In order to tune the TV to receive digital television channels, you must-
Press the SMART button to access the start menu. In the Setup section, select the mode of digital TV channels. In order to tune the TV to receive terrestrial digital television channels, you must set the DVB-T2 parameter, to receive satellite digital television on lji, you need the DVB-S parameter, to watch cable digital channels on your TV, you must set the DVB-C value.

On TV LG 24MT 35S. PZ dark screen

A strange malfunction suddenly appeared on my TV: everything shows, there is a picture and sound, but the screen is dark on top and brightens smoothly towards the bottom of the monitor. What is it? A small clarification for the localization of the failure: The malfunction was blinking for several days, (“on-off” with a period of several hours) then stabilized. Now a nice toned picture with a change in density on top. down, the color rendition of the frame and the color of the picture did not suffer. As if a veil with a linearly varying transparency was thrown over the picture (“and I see the coast, enchanted and enchanted by the distance.”).
If the matrix backlight is created by a field of switched on LEDs, then why does the backlight brightness change gradually, and not abruptly, as is usually the case in digital circuits? Where can I find a disassembly manual on the Internet? It is possible that there is a bad contact in the connector. Main problem. the possibility of breaking the plastic catches of the device case. 09/14/2018, Kiev.

Most likely, the matrix backlight unit in your TV is out of order. If one of the backlighting elements fails the one that is responsible for the top of the screen, the image will be dark at the top and light at the bottom.
And what have digital circuits to do with it? One light bar illuminates the entire matrix with a decrease in illumination from its location to the opposite edge. Another thing is that your words “the color rendering of the frame and the color of the picture did not suffer”, you must look to the master.

Manual TV LG 42LB

Antenna is connected to an LG TV, terrestrial or cable, by connecting a 75 ohm antenna cable to the “Antenna / Cable IN” jack on the TV
Connection of a satellite dish is made by an antenna cable 75 Ohm with an F-connector directly from the antenna or through a special satellite outlet with power supply, with a TV set “LNB Satellite IN”.
For the best picture quality, LG TV manual recommends connecting external devices such as a DVD or Blu-ray player, digital TV set-top box, game console, personal computer via a high-speed HDMI cable to one of the HDMI jacks on the TV. For connection, you can select any HDMI input port, its number does not matter.

Audio connection. An external device supporting SIMPLINK and ARC should be connected through the HDMI IN1 (ARC) port. Analog audio stereo connection is made to the “PC-AUDIO IN” jacks L, R.
Component connection is made to the jacks marked “COMPONENT IN” Y, Pb, Pr.
Mobile phones are connected via a passive MHL cable connected to the HDMI IN3 (MHL) or HDMI IN4 (MHL) port
Optical audio transmission allows a high-quality external audio system to be used instead of the built-in speaker. “OPTICAL DIGITAL AUDIO OUT” special fiber optic cable connection port.
The TV’s USB ports allow you to connect USB storage devices: flash memory, external hard drive or memory card reader.
Connecting the CAM module of conditional access through the TV slot “PCMCIA CARD SLOT”. according to the instructions of the LG TV, it allows you to watch encrypted pay programs of digital TV.
Headphones are connected through the “Ext. Speaker” socket of the LG TV. Headphones must have the following parameters: plug diameter 0.35 cm; resistance 16 Ohm.
Using the SCART connector of the TV set through a special cable allows the transmission of analog audio and signals to the TV.

You want better quality on your LG 37LE 5300

TB LCD LED 12-storey building. It works well from the common antenna, without any complaints, but I want a better picture quality. From the discs, the quality is super. Further problems, we connect via the Internet IPTV TV-quality is good, the signal level is good (checked).connection via cable, but the screen-picture starts to twitch crumbles and inside the lumbago-click, like a spark, the picture crumbles constantly. Internet service providers have been unable to find the reason for a month now. they measure their signal and mine is good. We changed the WI-FI router and the decoder prefix. I ran out of patience. I installed satellite MTS television, the satellite as it should be, through the receiver, the picture still twitches and crumbles, although a little better (less often), from the satellite rarely, maybe half an hour. Maybe what’s in the TV settings? 05/31/2018, Vidnoe

If the picture crumbles into squares when watching digital TV, this is a sign of a weak signal level, insufficient for stable operation. The connection between the router and the TV is not via wi-fi, but via a special ethernet cable. allows you to pass the signal without loss. If you connect satellite TV through a receiver, it turns out that you are using it in this case only as a monitor, the digital signal processing does not take place on the TV. And then the rare scattering of the image from the satellite is associated with poor orientation of the dish, or with temporary interference on the satellite-receiving satellite antenna path. And poor reception of cable TV from the provider is associated either with a bad cable signal, or with a defect in the TV. You can connect the provider’s receiver to the LG if the picture becomes stable. problem in tv.

pcmcia card slot on LG TV what is it

pcmcia card slot. this is a special connector. a slot on the side of an LG TV that can hold a special card, the so-called conditional access card. Such a card is necessary to view paid digital television channels coming through a satellite dish, or through an antenna cable. The conditional access card has an individual number and is tied to the digital television subscriber’s account number. Thus, the pcmcia card slot is found in every modern TV, and is required to watch paid digital programs.

Setting up your LG 42lb650 TV.

You can set up your LG TV by pressing the MENU button on the remote control. The screen will display section icons, the name of which speaks for itself.
In the “Tuning” section, you can search, tune and sort TV channels. The “Antenna” option is set if you use an indoor or outdoor antenna for terrestrial television. The “Cable” option is set when the TV is connected to a cable network. If you do not intend to view paid digital channels, it makes sense to select before setting up the TV from the options “Only analogue channels”, “Only digital channels”, “Digital and analogue channels” first.
In the ‘Picture’ section, the TV set is adjusted to the image parameters. brightness, contrast, saturation and hue. It should be borne in mind that the brightness control in LCD TVs is made in a small range compared to CRT TVs.