What to do if the TV does not work
There are 10 basic ways to restore WiFi on modern TVs. Most of them are related to the correction of wireless settings. The necessary parameters on Samsung, LG, Panasonic and Sony devices can be changed at home, without contacting a service center.
Let’s take a look at all the main ways to fix configuration errors:
1. Reboot the TV and router
The first steps to take if WiFi does not work on the TV is to reboot the Smart TV and the router. A malfunction can be programmatic in nature and can be easily corrected by reinitializing device drivers. To restart the TV, turn it off and on again. Some experts also recommend removing the plug from the electrical outlet and then reinserting it. This tip makes sense for those TVs that remain connected to the local network even after turning off the screen.
During the reboot of the router, you must wait 10-20 seconds between turning it off and on. During this time, the previous Internet session will be closed on the provider’s side. Therefore, the connection will be made again, with the settings reset to zero. When the Smart TV and the router turn on again, try connecting WiFi.
2. Manual indication of connection data
Using the built-in Smart TV menu, go to the WiFi connection settings. Select the manual mode for specifying settings if the DHCP server is disabled on the router, and the connection with automatic parameter detection does not work. In the line “IP address”, enter any IP from the local range. The valid start and end addresses are available for clarification in the admin panel of the router.
In the “Subnet mask” field, you must specify which part of the IP range will be used to address clients on the local network. The frequent value of this parameter is 255.255.255.0. In the “Gateway” line, enter the IP address of the router, which is used to enter the settings.
3. Resolving DNS Server Errors
This method is especially relevant for Samsung TVs. Access to the Internet and multimedia content through the Smart Hub is difficult when Samsung’s servers are overloaded. When specifying your DNS server addresses, connection to Internet resources will be made directly, without using the infrastructure of the manufacturer.
Addresses of DNS servers are specified in the support of the provider. You can also use the free public DNS. This service is provided by Google, Yandex, OpenDNS. For example, to use Google’s address servers, just enter the IP of the primary server: 188.8.131.52 and the secondary: 184.108.40.206. If there is no text field for entering an alternative server, enter only the first address in the DNS settings.
4. Using a different method of connecting to WiFi
If you made a connection by manually entering the password for the wireless network, try connecting through WPS. WiFi Protected Setup technology allows you to activate the quick connection mode in the TV settings. After that, a similar mode must be activated on the router. This is done through the control panel or a special button on the back of the case.
To enter the router’s web interface, turn the device over and look for the login sticker. It is usually located on the bottom and indicates the standard IP address, username and password. Enter the IP in any browser and enter the account information available on the sticker. Then go to the WPS section and activate this feature. A quick connection will be available within 1-2 minutes.
In the case when the WPS protocol was used initially, but at the moment it is not possible to establish a connection, enter the information in manual mode. When connecting to a hidden network, you will need to specify not only the access key, but also the name WiFi (SSID). Televisions with earlier firmware versions do not always support the search for hidden networks. Therefore, before updating the software, it is recommended to remove the hiding of the network name in the router settings.
5. Reset TV
A quick way, which in some cases helps to solve problems with WiFi on Smart TV, is to restore factory settings. Before executing it, it is advisable to rewrite the values of the main parameters that are not connected to the network. After the reset, you can return them based on the recorded information. Menu path for restoring factory settings on popular TV models:
- LG: “Settings.> Additionally.> Are common.> Reset to factory settings. “
- Samsung: “Support.> Self-diagnosis.> Reset. “
- Panasonic: “Installations.> System menu> Initial settings. “
6. Change the location of the router
Problems with the wireless network on the TV may be due to poor reception of the signal from the router. If possible, move the router closer to Smart TV and install it so that there is less interference in the path of radio waves. The main obstacles to signal transmission are walls, furniture, and household appliances.
Setting up an access point on a raised platform will help provide better WiFi connectivity. For example, you can put the router on a cabinet or hang it above the door. If you cannot transfer the router closer to the TV, connect a more powerful antenna to it. The higher the antenna gain, the better the network will work on Smart TV.
7. Finding problems with a WiFi router
Difficulty connecting to the wireless network may be due to incorrect router settings. To change them, go to the control panel. Go to the “DHCP” tab and make sure that the DHCP server is turned on and working properly. When you turn it off, the TV and other network devices will not automatically be assigned the local IP address. Normal routing and Internet access will not be possible.
Check the Security tab in the router settings. If client filtering by MAC address is enabled, disable it. On routers ASUS, TP-Link, D-Link, Huawei and some other manufacturers, the MAC address of any device can be added to the “white list”. In the future, the connections of devices from this list will not be blocked, so the normal operation of WiFi on the TV will be restored.
The MAC address of the Smart TV is specified in the settings. The exact path differs depending on the brand, on most televisions of popular manufacturers, the necessary information is in the menu:
- Samsung: “Support.> Contact Samsung.> Arrow to down.> MAC wireless interface. “
- LG: “Setup.> Support.> Product Information. “
- Philips: “Installation.> Manual network setup.> View network settings.> Start”.
8. TV firmware update
Smart TV firmware needs a timely update. Errors can accumulate during operation, resulting in difficulties when connecting to the Internet via WiFi. Depending on the TV model, the update can be done in several ways:
- Through a wireless network;
- Using cable Internet;
- Via an external USB drive (USB flash drive or hard disk).
Video: What to do if the TV does not work
If WiFi on Smart TV does not work, use the second or third option to download the new software version. Detailed instructions for updating the software are usually posted on the website of the company that released the TV. The possible names for the section you need are: Help, Support, or Help Center.
During the operation of the utility, it is important not to disconnect or de-energize the device. Any interruption may affect the future functionality of Smart TV. Do not use third-party firmware to avoid loss of warranty service.
9. Replacing the WiFi adapter with an external one
This method does not help to fix the problems of the internal radio module. But if it is precisely because of them that connection errors occur, use an external device. The form factor of such a WiFi adapter resembles a regular USB flash drive. Like most other devices, it works when connected to a TV via USB.
There is another type of adapter for receiving WiFi on sale. They have an external multidirectional antenna that provides the best signal reception from the router. Such modules are recommended to be connected via a USB extension cable, placing them at a certain distance from the TV. Thanks to this connection, interference from a working Smart TV will be minimized, and the speed of data exchange will increase.
Training video: Connect the TV to the WI-FI network
10. Use of cable connection
Damage to the radio module on the TV is the main reason why the previous tips may not help to solve the problem. If you tried all the ways to solve the difficulties with WiFi, most likely there is a malfunction at the hardware level. It is recommended to take the device to a service center. Within the warranty period, the replacement of the WiFi module will be free of charge.
If it is not possible to take the device to the workshop, you can use the connection with a cable. To do this, insert one end of the power cord into the “LAN” port on the router, and connect the other to the TV. Routers usually have 2-4 Ethernet outputs; you can use any of them to connect a TV.
From the moment that television has become widely available for every family, it is difficult to name a more popular way of spending family leisure time (and even the Internet is not able to change this). But what if the TV suddenly stopped turning on? The first and most important tip is not to panic. If your brand new LCD TV or a no less expensive plasma version for some reason does not turn on, this does not mean that you need to call specialists. Today, there are different repair teams, and you can rest assured that unscrupulous representatives of this profession will certainly take money from you, even if the equipment was absolutely in good working order.
Therefore, you must first conduct an initial inspection on your own. Most malfunctions can be dealt with without special skills, using instructions from experienced people. It is possible that the problem lies in such trifles as the wrong mode, a randomly pressed button or problems with the wiring. To begin with, it is worth clarifying that the approach to different types of TVs varies slightly. The most common are:
- Liquid crystal (LCD);
But since you do not need to directly repair the equipment, the difference will be negligible. And the tips thanks to which you can fix the LCD TV are quite suitable for other technologies.
If you purchased a new TV, and it does not turn on from the first minutes you are in your house, the source of the problems should not be sought in the device itself. The probability of marriage is very low, since all reputable manufacturers carefully check all their equipment before sending it to distributors. Most likely, the matter is a wrong connection, a malfunction of the remote control or an error in the control.
Read the instructions carefully, and try again. For example, the problem may be with the power button, which may be turned off. If the power indicator is on and does not blink, then everything is in order with power. If the indicator does not show any signs of life, the problem may be with the power button or wiring. Carefully study the cord and the socket, you can also check the voltage with a screwdriver, in which the indicator is built-in. If the lamp blinks intermittently, it is possible that the contacts are moving away. In some cases, the indicator blinks when the bulb is out of order. You can temporarily ignore such a problem. If no problems are found and the TV still does not turn on, the problem is different.
Wrong mode selected
If the TV does not turn on, but the indicator is on, power problems can be eliminated. The problem may be in the wrong mode. Each modern LCD TV is equipped with many modes:
- Game console.
And many others. Read the instructions, and carefully study each mode. It is possible that your TV is in standby (sleep) mode. It is quite easy to determine this. The screen goes out in this state, and the indicator lights up in red or green.
Then check out the rest of the modes. Some LCD models have a special button that allows you to determine the current status. If you select the DVD player or game console mode, you will see only an extinct screen and a luminous indicator. Check the slots into which the plugs of the set-top box or player are inserted. If the mode is selected and the devices are not connected, the screen will automatically go blank.
The source of trouble can also be hiding in the breakdown of the remote control (DU). Press the power button. If the indicator blinks, then there is no doubt that the remote control is in good condition. If the indicator does not blink and does not react at all, it is worth checking your remote control. Perhaps just replacing the remote control batteries is enough. If there is an identical remote control nearby, you can check it too. If the TV still does not turn on using the remote control, try turning it on with the button on the dashboard.
Sometimes, during a breakdown, the speaker emits characteristic sound signals. Squeaks, clicks, etc. If the speaker beeps when you press the button on the remote control, it means that the remote control is working, and the problem is different. Sometimes there may be a modern LCD TV that beeps when the mode is selected incorrectly and there is no connection with the player or set-top box.
If the image does not turn on even with a button on the dashboard, most likely the problems are inside the device. Modern LCD devices are characterized by very sophisticated technologies, and trying to fix them on their own is undesirable. Listen. If something clicks in the back of the case, it could be a built-in blocking module. Very often it is he who causes all the problems. This module always clicks when activated, and if you hear a similar click, you will have to call a specialist.
In cases with old picture tubes, the “root of evil” usually lurked in a fuse, and with certain skills it could be replaced on its own. But modern LCD products were created using a completely different technology, therefore, in the absence of special knowledge and skills, you will have to contact the specialists of the service center. This is a rather expensive example of household appliances, and it’s not worth the risk of such big money.
Recommendations for those who can handle a soldering iron
Among the reasons why the TV stops turning on, employees of specialized service centers call the breakdown of almost all the main blocks. Pulse PSUs, photodetector modules, motherboards (Main Board or SSB) boards and backlight control inverters. They also note that the lion’s share of faults of this kind are accounted for by faults in the power supplies. For this reason, the first thing to do after the initial diagnosis (checking the voltage at the outlet, “ringing” the cord and replacing the mains fuse) is to examine the TV PSU according to the following scheme:
- Carry out a visual inspection for microcracks, chips and cold soldering, and then correct the discovered deficiencies.
- Replace swollen capacitors identified during external inspection.
- If burned or damaged resistors were found as a result of the examination, it is necessary to carefully check the circuits in which they are installed. In the case when voltage dividers were built on these elements, the health of the transistors, diodes, and other semiconductor devices located next to them should be checked.
Most likely, the correction of the failures revealed during the initial inspection will be enough for the TV to work again. If the miracle did not happen, then further diagnostics are carried out from the inspection of the fuse. Its repeated burnout may indicate a breakdown of power transistors or rectifier bridge diodes. In addition, the semiconductors on which the PWM controller chip is strapped should be carefully checked. The chip itself is checked by replacing it with a new or obviously working part.
It is not difficult to detect the power supply unit of the TV. It is issued by the presence of winding units (transformers, chokes) and capacitors of increased capacity
Modern LCD and plasma TVs, in addition to the main power supply, also have an additional standby UPS. This module is constantly energized, since it is used to feed the circuits responsible for turning on the device from the remote control. The output of the additional power supply unit must have a low-voltage voltage, which is necessary to power the IR receiver and support the processor’s operability in sleep mode. Often, after many years of operation, the capacitors of the network module dry up, lose their capacity, “go into the open”, and even begin to work in diode mode. Of course, after the storage elements fail, the process of voltage conversion becomes problematic, and starting the TV becomes impossible. Before proceeding with the search for replacement parts, it should be borne in mind that pulse PSUs have a high-frequency mode of operation. Since capacitors filter high-frequency pulses, parts with low series resistance (the so-called ESR) should be selected. In the process, they will heat up less, which means that after repair the TV will last much longer.