The TV does not turn on at the first time

The TV does not turn on from the first time: possible causes of defect

The TV set doesn’t turn on the first time much more often than you would expect. There can be several reasons, and some of them you can easily remedy yourself. All it takes is a couple of minutes and a little attention to detail.

The failure can be due to various factors, in some cases on the TV panel all the diodes are lit, including the red light, but the TV refuses to work. There are situations when, when trying to turn on the device, the screen starts humming or beeping, and the picture and image are also missing.

The indicator light is blinking

If the TV has stopped turning on, and the indicator light is blinking, it means that the equipment has switched to self-diagnostic mode, the process of determining the fault. If the diode lights up a certain number of times, it means that the problem is set and the screen thus signals that there is a failure. Codes that decipher the breakdown can be seen in the instruction manual. Self-diagnostic option is available on almost all modern televisions: Philips, Supra, Samsung, Thomson, LJ. Therefore, if Philips or Supra TV does not turn on, but the diode is lit, you need to calculate the code and decipher it.

It is also possible if the screen performs the function of a PC monitor. For example, if the computer has gone to sleep mode, or shutdown occurred, then when you press the start button on the LCD TV a diode will light up several times.

Diodes on the TV panel are on continuously

In that case if TV does not turn on, but all diodes are lit, it means that there is no problem with the electrical power of the equipment. Specialists recommend to try turning on the plasma panel instead of using the remote control, and to press the control buttons on the TV itself. Also the fact that the remote control is faulty can be indicated by the fact that the TV does not turn off.

If after using this method the TV still does not work, then most likely the problem is incorrect connection or setting of the TV. You should also not forget about the individual characteristics of a particular screen. For example, if, with these symptoms LG TV does not turn on, then, usually the problem is in the ceramic voltage 4.7 Com, in other words, there was a break.

Instructions on what to do if the problem is a ceramic voltage:

In the case if the TV Samsung does not turn on, but the lights are lit, then the breakdown must be sought in the electronic filling.

Protective features

This is one of the common reasons why the TV does not show. The screen may even turn on for a few seconds, but then there is a shutdown. This mostly happens because of a voltage failure. Specialists recommend disconnecting the technique from electricity for a while, and then turn it back on.

If the problem occurs all the time, in such cases the TV must be switched off and then on again, through the surge protector.

Also, experts recommend that before leaving home, turn off the television equipment, this action can exclude the occurrence of such problems, and the user will not wonder why the TV does not work.

Human factor

Very often the equipment breaks down for this very reason. Therefore, before connecting the equipment, be sure to read the manual, which specifies in detail how to set up, install the screen.

And also all components must be in good quality (wires, outlets). Knowing elementary rules of operation will help to avoid many problems.

The screen makes strange noises

Often users, turning on the TV, they hear that in the monitor housing sounds, they can be different.

The following symptoms are considered the most common:

  • TV clicks and does not turn on, with a flashing red indicator light;
  • The diode does not light up, and you hear a clicking sound in the body of the device;
  • I hear a squeak, but the TV set fails to play.

There are several reasons why this happens, the main ones are:

  • The system locks the equipment;
  • Power supply is heavily overloaded;
  • heated, then began to cool the plastic case of the plasma.

These are common and most likely factors why the TV does not show. Below we will consider examples of why the TV does not work a specific manufacturer.

Indicator blinking in a certain sequence

In some manufacturers’ TV receivers: Sony, Philips, Panasonic. the TV set has a self-diagnosis at the moment of switching on. Polling on the SDA, SCL buses gives the CPU information about the functionality of the other functional devices: tuner, sound processor, memory chips, digital bus itself, etc.д. If a faulty node is detected, the command to turn on is blocked, and the receiver goes into standby mode with an error indication. The lights begin to flash in a specific sequence, indicating a particular fault in the unit.

This way of self-diagnostics allows you to find out quickly if a component is faulty. The service instructions for a particular model provide so-called error codes, in which each combination of blinking lights corresponds to a possible failure of various parts of the receiver. This makes life much easier for the troubleshooter by guiding him down the right path. For example, 13 blinks of LED after a pause on a Sony FIX2 chassis TV shows a problem with the backlight. Either the inverter or the lamp can be at fault and this is what we will diagnose. As an example here is a table with error codes of Philips TVs on the Q552 chassis.1E LA. The first level of errors (Layer 1) we see immediately if there is a defect, the second level (Layer 2) can be seen if you put the receiver in service mode.

To summarize, we can say that the behavior of the indicator light in the TV when a malfunction occurs can provide a lot of useful information for successful diagnosis and fault location in a particular unit, contributing to the successful repair of the TV in general.

Randomly flickering display

If the LED lights chaotically, blinking with different frequency or going out for a few seconds, and then lighting up again, but in a different color, then it is hard to diagnose the problem. This requires a complete diagnosis of the hardware.

It is better to start with the power supply unit, and then move on to the main board, checking all elements in turn.

You should also examine the interfaces to connect third-party peripherals. It might happen that a shorted port on one of the ports blocks the whole system.

Indicator does not light

This is an indication that the problem may be due to a lack of power. In some situations, the light does not come on, but the TV turns on. In this case it is burned out, therefore it is necessary to change the indicator. There is no point in calling a service center prematurely. You must first determine the reason for the malfunction. Some problems can be solved by yourself. The TV set doesn’t turn on and the LED doesn’t light up for the following reasons:

  • No power in socket. It may be broken, but it is also necessary to check whether the circuit breaker in the switchboard is on. You can check the functionality of the outlet with a regular screwdriver or a tester. Problems related to the wiring is extremely difficult to solve yourself, so it is better to call a professional electrician.
  • The TV power cable is connected to an extension cord, and it is faulty. If the cause of problems with the TV turned on was the surge protector, then you need to test the functionality of the fuse and the power button.
  • Mains button is off. This key is mainly located at the bottom, on the side or on the back panel. If the button is disabled, then you can not turn on the device with the remote control. Press “Network” button for TV to start working correctly.
  • Wrong mode set. If the user selects the wrong signal source, such as AV or HDMI, then the picture disappears and a black screen is seen. May cause automatic switching to standby mode. In this case, you need to select the digital TV mode again to normalize the equipment.
  • Failure of basic modules. Due to mechanical damage and short circuits, microcircuits and capacitors are broken. Also the power supply and control elements burn out. You can’t check serviceability of all nodes without special equipment. That’s why you should call a professional technician.
  • Fuse blown. This is often the reason why cinescope models do not turn on. No voltage supply due to fuse breakage. Repair involves replacing a broken component.

Users with good knowledge of electronics, as well as professional equipment can repair the TV set themselves.

Problems with electricity

If plasma TV set doesn’t turn on, it’s not an indication of hardware problems. The problem could be caused by bad wiring, a damaged cable, or a faulty antenna. First you need to check the socket. It may have broken down due to a power surge. Try connecting the equipment to a different power source. If the TV will start, then the cause has been determined correctly. If the recommendations above didn’t help, you need to contact the service center. Professional craftsmen will carry out a comprehensive diagnosis, which will identify faulty nodes.

Electrical problems lead to hardware malfunctions. Voltage fluctuations are the catalyst for fuse blowing. Breakage of this component prevents the correct start of the TV. When the indicator lights up in a normal color, you need to check the connection of the device with the TV signal source. Change the signal source, e.g. choose HDMI, USB. Connect a USB thumb drive or a laptop computer to the TV through these interfaces. Try to play some content. If everything is displayed correctly, it means that the problem is a lack of TV signal.

Voltage fluctuations can also manifest themselves in the appearance of noise when you start the TV, you can hear clicks. The Smart TV loading time considerably increases. All these symptoms indicate one of these breakdowns:

All modern devices are equipped with a special lock, which prevents the hardware modules from burning out. It automatically turns on after a power surge. So there are problems with starting the appliances. Sometimes, in order to disable the blocker, you have to disassemble the TV. Therefore, in such situations, it is better to contact a service center.

It is impossible to do without the services of professional craftsmen, if the power supply chip burned out or the capacitor bloated. Problems with electricity can also contribute to resistor burnout.

The TV does not turn on. the indicator light is on: causes and their elimination

Sometimes a television device malfunctions just like any other device. And regardless of its brand name, its lifespan or its type. By type, TVs can be, for example:

But despite the diversity of types, the reasons why TV devices may not turn on are often the same. Here are a few of them:

  • problems with power buttons (if the TV does not turn on, although the red light flashes, then there is nothing wrong with the power supply, if the indicator does not flash, then the reason is either in the button itself, or in the socket, or contacts have broken off);
  • If the indicator lights constantly, it can be in the case of the wrong mode;
  • The plugs are not connected correctly or they are mixed up;
  • Remote control malfunction, even if the indicator light is on, but the TV does not react to manipulation with the remote control (the reason could be a PU breakdown or run down batteries).

Indicator blinks chaotically

If the indicator light on the TV is on, it means that there is electricity in the mains. But the device does not want to turn on. If you want to turn it on with the remote control, it may be the problem. To find this out you need to:

  • check if the batteries are working properly, if they are inserted correctly, if the contacts are not oxidized);
  • if the emitter on the remote control is not damaged;
  • buttons and the PU body are intact.

If everything is alright with the remote control, but the TV set still does not turn on, the indicator light, even though it is chaotic, but is lit, then it is a signal of an error which you can read about in the instruction manual for this model of TV set.

Also indicator light can blink, if TV set operates as computer monitor. Also, the unit cannot turn on from the PU, if the operating mode is not properly selected. When PC and AV modes are selected the device “falls asleep”. You must select the TV mode to turn on the TV.

It happens that the indicator light does not flash randomly, but in a certain sequence. This is provided by several manufacturers. Their televisions in this case, by indicator signals flashing in a specific sequence, perform the function of self-diagnosis. At service stations, experienced specialists can use these signals to figure out the problem of the TV more quickly.

Indicator light constantly on

If LED indicator light is on, there is power to the control unit. That is, the TV set does not turn on, but the indicator light is constantly lit red. Device can not turn on from the remote control if the remote control is broken or if the batteries are dead. To find this out you need to try to turn the TV directly from the control panel on the TV. Sometimes the buttons on the remote control get stuck, so the TV is unresponsive.

Important. If the light is on all the time and the TV does not turn on, it could also signal a malfunction in the motherboard or a software failure

To find out, you need to make a diagnosis in the service center.

User Error

Breakdown of complex electronic equipment is always costly. the cost of repair of plasma or LCD screens is often unprofitable for the owner. When LG TV does not turn on, do not immediately suspect the worst. Most likely the causes of problems are elementary mistakes or accidents, rather easily correctable.

  • Lack of power supply. If there is no current from the outlet to the TV, it will not work. Indirect confirmation of the problem can be a complete absence of indication on the body, no reaction to signals from the remote control. It is worth checking that the button on the surge protector is not turned off and if it is, check if there is a plug in the socket.
  • Wrong mode selected. In case of switching to Sleep Mode, the screen goes out, but the device continues to work as usual, but without external manifestations. You can make sure it is correct by pressing Standby button on the remote control, otherwise the TV will not respond. Only when you change modes will the device be ready to use again. You should not use sleep function too often, as in this state the equipment is more vulnerable to short circuits and other malfunctions in the network.
  • Wrong signal source. Sometimes the TV set itself is on, but you can’t watch terrestrial TV or other content on it. To fix the problem you usually just need to check the signal source. Instead of TV there may be HDMI, AV. You just need to switch to the right mode.
  • Unauthorized access protection is activated. In this case, the TV cannot be operated using the buttons built into the body of the TV. But from the remote control all functions will work. The option is positioned as “child-proof”. they can not turn on the technique themselves.
  • Broken brightness settings. If the user selects the minimum values when setting this parameter, the screen will remain black. In this case, you need to make adjustments and return to normal brightness settings.

Why won’t the TV turn on, but the indicator light is on or flashing

Breakdowns TV receivers, like any electronics, can be caused by various reasons, to get to the bottom of which is sometimes difficult. Faults can occur with equipment that is new or has been in use for a long time. For example, when trying to turn on your TV, you see the LEDs blinking and you hear a clicking sound, but the TV does not turn on or does not work. Different models of devices may have their own “symptoms. The reasons why the TV does not work, in fact, can be many.

Continuous indication

If the indicator light is constantly on, it means that the equipment is receiving power. If you can’t turn the TV on with the remote control, you should try doing it with the main panel on the TV. It is quite possible that the problem is in the control unit. If the equipment turns on, it is necessary to check the remote control.

  • open the battery compartment and check if the contacts are oxidized;
  • Examine all the buttons for sticking;
  • check the continuity of the transmitter;
  • Clean the remote control from dust and other dirt.

The batteries in the remote may have worn out. When the LED on the transmitter glows bright enough and looks undamaged, you should bring the remote control close to the main panel and try to turn on the TV. If it succeeds, then the batteries need to be replaced with new ones.

Light indication is red

When the indicator light is red, then most likely the equipment is in the standby mode. If you are unable to switch on the TV set, it is worth checking the main board. Inspect all capacitors for bloating and replace them if necessary, then test-check all elements with a tester. It is also a good idea to check the power supply with the same multimeter.

If a short circuit occurred or one of the burned out elements led to the AT24 memory chips (Eeprom, SpiFlash), then a software update is needed. If you can’t install the firmware locally, you have to flash the board using a programmer.

If everything is alright with the main board, but the TV set is impossible to turn on, you should check the power supply on the motherboard. There are voltage converters, DC-DC-modules, and other secondary sources. The first thing to find out is the stability of the power supply in the given voltage range. Diagnose the board with a multimeter.

Tip! It is better to entrust such work to specialists of the service center.

The display changes from green to red

Having received a signal from the remote control, the processor gives a command to the executing elements to wake up and turn on the equipment, displaying a corresponding notification on the main panel. That is, the display changes color from green to red.

If the notification LED on the control panel switches back to red, it means that one of the circuits is not following the command given. The problem here could be an inverter that fails to turn on the backlight, or a faulty power supply blocking the startup of the equipment.

The processor switches to standby mode in such cases: the LED is red and does not blink. For example, the processors of some Sharp brand televisions put the system into a complete lockout after five attempts. That is, the TV cannot be turned on without resetting all settings through the service menu or a complete reflashing of the AT24 memory. Other models perform self-diagnosis at startup until the cause of the malfunction is eliminated.

Green display, but TV does not turn on

There could be many causes. Unintentional deenergizing of the logic processes could have disrupted them. First of all you should try to force the updating of the software with the programmer. After reflashing the firmware the logical processes should return to normal.

Then it is necessary to check the main board serviceability: check the main elements, make sure the voltage is sufficient and stable, as well as examine the backlight components. If there is no image on the screen but the sound is there, the most probable reason of malfunction is the inverter or the LED-block, which is responsible for the power supply.

Sometimes the motherboard blocks receiving and transmitting all the signals to the controllers, or sends the wrong commands, which cause the matrix to remain inactive. The main board can also be at fault.

The low-end models are not equipped with the most adequate TCON chips. They receive commands from the video controller and are responsible for converting signals to the LCD matrix. In some cases it helps to reflash the chips to the specifics of the main board of your TV.

Randomly flickering display

When the LED lights chaotically: blinks with different frequency or goes out for a few seconds, and then turns on again, but already in a different color, then it is difficult to identify the cause of malfunction. This requires a complete diagnosis of the hardware.

It is better to start with the power supply and then move on to the main board, checking all the elements in turn.

You should also examine the interfaces for connecting third-party peripherals. It happens that a shorted contact in one of the ports blocks the whole system.

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Indication is not active

If the LED is not lit at all, the problem is most likely in the power supply. It is a good idea to check the functionality of your TV without looking at the LEDs. It is quite possible that the LEDs are simply burned out. In other cases, the following causes should be considered.

  • Faulty outlet. You can check it by means of ringing or by connecting any household appliance, for instance a hairdryer or a table lamp.
  • Burnt out wiring/extension cord. If you can’t smell burnt wires, then check the cord for physical damage. breaks and fractures. It is worth trying to replace the carrier/extender.
  • The “Network” button on your TV set is inactive. The key is used to switch the TV to standby mode: the indicator light is red. It might have been accidentally pushed to the “off” position.”.
  • Incorrect mode. TV may be operating in more than one mode. If you’re streaming, for example, AV broadcast and the TV is turned on because there’s no signal.
  • Fuse blown. The problem is especially acute for older TVs. Fuses are usually located on the back of the equipment. A burnt part gives out a broken wire inside the glass bulb. Replace it with a similar one and try to turn the TV on.

TCL TV does not turn on / off or keeps turning on / off

TCL was the first brand to introduce Roku TV, which was a game changer for Smart TV capabilities. Even with all their success, there are times when there are problems with your TV. What to do if TVL TV does not turn on / off or does not turn on / off by itself?

If your TCL TV does not turn on, does not turn off or keeps turning on and off by itself, try doing a manual reset, call for a power cycle, remove problematic apps, update the firmware, change the input or switch the power source among other permissions.

When you invest in something as regularly used and as expensive as a TV, you expect it to work without errors. However, technology fails at times, and TCL TVs are no exception. Keep reading to find any problem related to turning your TCL TV on, off, or off and on, and find the best solutions to fix the problem.

TCL TV doesn’t turn on or off

One of the most fundamental and important elements of any TCL TV is its ability to turn on and off.If you walk up to the TV and find that nothing registers but a blank black screen, this is obviously a problem. Furthermore, if you turn the TV on but it won’t turn off, you’ll still have a constantly running image all the time when you just don’t need to watch TV.

does, turn, first, time

If your TCL TV won’t turn on or off, first make sure that the problem is not with the TV itself. To do this, go to the back or bottom of your TCL TV, find the manual power button, and try turning the TV on using this workaround.If your TV turns on, the problem most likely lies in your remote control, however, if it does not turn on, you will need to investigate further.

If you are trying to turn on the TV using the power button, check to make sure the power cord is properly plugged into the TV and into the outlet. If that’s not the problem, you may need to cycle the TV’s power to get your TCL TV to turn off and on correctly. To complete the power cycle, unplug your TV for 60 seconds and then plug your TV back in to the same power source to help reset it and restore it to normal.

TCL TV keeps turning on and off by itself

In addition to your TCL TV not turning on or off at all, there is a problem with your TV turning on and off on its own. This may seem great for those of you who want to work without touching it, but when you’re in the middle of an overtime game, at the very end of your favorite movie, or broadcasting the season finale of a new show, it can be a serious problem. If you find that your TV randomly turns off and on by itself, keep reading to find a solution.

If your TCL TV keeps turning on and off by itself, go to the side or bottom of the TV and find the reset button. When you find the recess for the reset button, take a long pointed object and press it into this recess for at least 15 seconds. After you’ve held it for those 15 seconds, remove the object. This should cause you to reset your TV to factory settings and fix the problem.

Those of you who use the Roku app on your phone may sometimes have problems with the app being sent to your TV.If the app isn’t completely closed on your phone, your TCL TV may think you’re trying to run a program that can force it to turn on on its own. So when you’re done with the app, make sure you close it completely to prevent any phantom fires.

TCL TV keeps restarting/rebooting

Aside from just turning off and on, some TCL owners have experienced problems with their TVs continuously restarting or rebooting. While intermittent restarting of your TV is not a problem, if it happens repeatedly, it can not only be a concern, but it can also take a very long time.If you find that your TCL TV restarts and reboots more often than it should, you can try a few different solutions below.

If your TCL TV keeps restarting or rebooting, check what might be causing the problem. If your TV restarts every time you try to use a certain app, the problem may be with the app and not with the TV itself. Uninstall the app and then run another app to see if the problem is resolved, then you can reinstall the same app or update it if necessary.

If the problem is not with a particular app, your TV may not have the latest firmware version installed. To update the firmware on your TCL TV press “Home” on the remote control select “Settings” “System” “System update” “Check now” to see if there are any updates available continue to download if they are available

TCL The TV does not turn on, but the light is on

Typically, when people have trouble turning on the TV, there is no sign of power on the TV.However, some TCL TV owners have reported and experienced problems with their TV not turning on, but the light on the TV is still on, indicating that there is some power. If you have a TCL TV that won’t turn on but the light is on, look below to fix the problem.

If your TCL TV does not turn on, but the light is on, make sure your TV is not stuck on the input, which is just a black screen. This can be caused by other connected devices, such as Blu-ray players or even game consoles.To keep your TV from freezing on a black screen, press the “Home” button on the remote control or switch the TV inputs to change what is displayed.