LG TV does not turn on indicator flashes red

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When you turn on the TV, Algy flashes the red light several times and turns off the screen does not work.

LG TV does not turn on, the lamp blinks several times and turns off. I recently encountered such a problem. Less than 2 years after the purchase, my Algie TV stopped turning on, the screen does not work except for the flashing of the indicator. At night, the telly worked fine, but in the morning I didn’t want to turn on, just the red diode blinked 3 times and that’s it.

As I heard, the TV performs self-diagnostics and, if problems are detected, it may simply not turn on, but it outputs a certain signal by flashing the red diode, allowing you to find out the cause. I called LG support at a toll-free number and asked for a decryption of such a blinking light bulb, to which I was told that they did not give such information to ordinary users and offered to contact the official LG service center.

But since the warranty for the TV has already expired and there is no LG service center where I live, I had to carry the TV for repair to an ordinary TV master. Honestly, I did not expect that the master would so quickly determine the cause of the breakdown of the TV, but he had enough information from me about the flashing of the diode several times when the LG TV was turned on, as he immediately gave out the cause of the breakdown. His answer was as follows. the LEDs of the TV backlight burned out and it was necessary to replace it and showed another disassembled same LG but with a larger screen diagonal in which the same problem.

Why the backlight on LG TVs burns out, I’ll write a little below. At first I thought that I had a lot of money and warned that if the repair costs a lot of money, then it is not worth doing it, but the master said that the replacement work would cost 1000 rubles, replacing each backlight element for 200 rubles. As a result, the entire repair with the replacement of 5 backlight elements cost 2,000 rubles. There are a lot of such elements on the TV, but only 5 of them burned out on mine. Perhaps the price for the work and the cost of the backlight LEDs themselves in your city may be more or less.

What to do first?

First you need to inspect the equipment. LG TV does not repair LG TV cf-21d79 LED flashes, does not turn on. The manual describes solutions to some basic and minor breakdowns. For example, the problem of a non-switched TV may well be that the power button was incorrectly connected or selected, the power button was accidentally pressed or broken. In addition, it cannot be ruled out that the power supply could burn out.

Before looking for solutions to fix problems, if the TV does not turn on, the light does not light up, you need to determine what type of device you purchased. Why does not my LG TV turn on and the indicator is blinking. First of all it should be noted. The TV does not turn on, but the red light is on or. There are liquid crystal, plasma and CRT. In case of minor malfunctions, in principle, there will not be much difference in the repair, the only difference is in the “design” of the internal design of the device.

Technical description and composition of the LG 32LV571S TV, panel type and modules used. Composition of modules.

LED driver (backlight): 6917L-0047A 3PDGC20001B-R. PCLC-D002 B REV0.4

Power Supply (PSU): EAX62865601 / 8 REV1.1 LGP3237-11SP

PWM Power: FAN7930B (PFC), ICE3BR4765JZ (Standby), L6599AD (PWM Resonant L6599AI)

MainBoard: EAX64104702 / EAX64405401 / EBR73503601

IC MainBoard: LGE35230, K4B2G1646C-HCKO, TH58DVG4S0ETA20, NTP7400L, F0514A, M24C16

Screen diagonal: 32 “(81 cm)
Screen format: 16: 9
Resolution: 1920 × 1080
Update frequency: 100 Hz
LED backlight: yes, Edge LED
Smart: there is. Wi-Fi support. optional
HD support: 1080p Full HD
Dynamic contrast: 5,000,000: 1
Pixel Response Time: 2.6 ms
Progressive scan: there is
TV Standards: PAL, SECAM, NTSC
Digital tuner: DVB-T MPEG4, DVB-C
Teletext: with memory for 2000 pages.
DTV formats: 480i, 480p, 576i, 576p, 720p, 1080i, 1080p
Stereo sound: there is
Sound power: 20 W (2 × 10 W)
Acoustics: two speakers
Interface: AV x2, component, SCART, RGB, VGA, HDMI x4, USB x2, RS-232, Ethernet (RJ-45)
Headphone jack: there is
Dimensions: With stand 766x545x240 mm Without stand 766x491x41 mm

Possible manifestations of malfunctions

Often in such cases, the power supply module EAX62865601 is faulty. Then, first of all, you should check the performance of ICE3BR4765JZ (PWM Standby). You should also measure the output voltages of other converters (main source and PFC) and, if they are absent, it is necessary to check the serviceability of the power switches (K10A60D) and rectifier diodes for a possible short circuit. In the event of breakdowns in the secondary circuits, the converter can operate in an emergency mode in a short-circuit mode, and in the event of a short circuit in the primary circuit, the mains fuse is usually cut off. Breakdown of Mos-Fet switches used in switching power supplies is often caused by malfunctions of other elements, for example, supply, frequency setting, damper. as well as elements of Negative Feedback of stabilization. PWM chips (PWM) FAN7930B (PFC), ICE3BR4765JZ (Standby), L6599AD (PWM Resonant L6599AI) is checked by replacing them with known good.

In most cases, the malfunction is caused by the lack of display backlighting. The reason for this may be an open circuit in the LED circuit, or a problem in stabilizing their power supply. To identify an open circuit in the LED lines without disassembling the panel, a current source is required. It is impossible to open the junctions connected in series with a simple multimeter, a voltage of several tens of volts is required.

Repair or diagnostics of the EAX64104702 motherboard should begin with checking the stabilizers and power converters required to power the microcircuits and matrix. If necessary, you should update or replace the software (software). Repair of the board and replacement of microcircuits LGE35230, K4B2G1646C-HCKO, TH58DVG4S0ETA20, NTP7400L, F0514A, M24C16 are made if the necessary equipment and the corresponding element base are available. Malfunctions associated with the use of soldering technologies of the BGA processor can be localized by the warm-up method.

If there is no tuning for terrestrial or cable TV channels, you should make sure that the software is correct, as well as that the supply voltages on the TDFR-G256D tuner outputs match. It is also necessary to check with an oscilloscope the presence of pulses of data exchange between the tuner and the processor via the I2C bus.

Remember! Attempts to self-repair the LG 32LV571S TV, in the absence of the necessary qualifications and experience, are categorically not recommended and are fraught with negative consequences, up to the complete non-repairability of the device!

LG 32lv571s won’t turn on blinking red

Material is added to the pages as data is accumulated from the available technical documentation, personal author’s experience and from the masters of repair forums. details.

Types of malfunctions

Televisions can have various problems that cause approximately the same “symptoms”. In this case, the devices need to quickly fix the problem.

  • Indicator flashes red.
  • TV clicks, hums, hisses or whistles.
  • The indicator does not work at all.
  • The TV does not turn on, the lamp is on.

What to do in each specific situation, you can learn from this article. But you need to remember that, as a rule, the same characteristic of a broken device will be either the lack of response to the remote control, or a complete shutdown with the power supply turned on.

Additional MainBoard Repair

The appearance of the MainBoard EAX64104702 is shown in the figure below:

Main features of the LG 32LV571S device:

Matrix (LED panel) LC320EUD (SD) (F3) is installed. Timing Controller (T-CON) 6870C-0358A is used in matrix control. LED driver 6917L-0047A is used to power the backlight LEDs. Formation of the required supply voltages for all nodes LG 32LV571S TV is carried out by the EAX62865601 power module, or its analogs using the FAN7930B (PFC), ICE3BR4765JZ (Standby), L6599AD (PWM Resonant L6599AI) chips and power switches of the K10A60D type. MainBoard. the main board (motherboard) is an EAX2 module, with using microcircuits LGE35230, K4B2G1646C-HCKO, TH58DVG4S0ETA20, NTP7400L, F0514A, M24C16 and others. TDFR-G256D tuner provides reception of television programs and tuning to channels.

Additional technical information about the panel: Brand: LG Display Model: LC320EUD-SDF3 Type: a-Si TFT-LCD, Panel Diagonal size: 31.5 inch Resolution: 1920 × 1080, FHD Display Mode: IPS, Normally Black, Transmissive Active Area: 698.4 × 392.85 mm Surface: Antiglare (Haze 10%), Hard coating (2H) Brightness: 400 cd / m² Contrast Ratio: 1600: 1 Display Colors: 16.7M / 1.06B (8-bit / 8-bit Dithering) Response Time: 5 (G to G); 6 (MPRT) Frequency: 120Hz120Hz Lamp Type: WLED Embedded (LED Driver) Signal Interface: LVDS (4 ch, 8/10-bit), 92 pins Voltage: 12.0V

The information on this site is accumulated from the records of repairmen and forum members. Be careful! Typos and errors possible!

The TV does not turn on, the light does not glow. what to do?

As television became quite widespread, people immediately stopped spending their home leisure time for walks in the fresh air. Usually, everyone goes to the screen for relaxation. But what should you do if the TV set does not cut in, the light does not glow or blinks? If a new LCD device or any other rather expensive version of technology fails, it is clearly necessary to contact a service center. And you can also try to fix the problem yourself at your own risk. This article will be devoted to exactly how to cope with problems.

Main breakdown indicators

Before you start looking for a fault, you must try to turn on the TV again. It is possible that the problem is in the power button, which for some reason has stopped working stably. The indicator can either be on or not, so you should also pay attention to it. In the first case, the problem is definitely not in nutrition.

Often consumers are faced with the following problem: the Toshiba TV does not turn on, the light is on, there is no damage. So what’s the problem? Let’s figure it out further in the article. It is necessary to pay attention to the fact that it does not matter from which manufacturer the broken TV is: the solution to the problem will be the same. However, consumers who preferred “Toshiba”, “Samsung”, LG, “Philips”, unfortunately, are faced with such malfunctions quite often.

LG TV does not turn on: light is flashing

Like any home appliance, TVs are prone to malfunction. This can happen regardless of the period of operation of the device and the manufacturer.

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When the relay indicator blinks, then LG TVs of the 42pa4510, ld33b, 42ld650, 42la621v series themselves give a signal that the device has a problem. Usually the red light should flash a certain number of times. You just have to open the user manual and find the section in which the types of breakdowns and their indication are indicated, with which the device reacts to the problem.

Another option that can cause a similar symptom appears when a computer is connected to the TV as a monitor, or a player. If the latter went into “sleep mode”, or maybe completely turned off, then the TV, when turned on by the remote control, will beep for a few seconds by the indicator.

This is the principle used by modern TVs from the following companies:

  • Samsung le37c530f1w;
  • Philips;
  • Rollsen;
  • Akira;
  • Toshiba (Toshiba);
  • Mystery (Mystery);
  • Bbk (Vvk, BBK) led2452fdtg, lem2488fdt, led;
  • Dns (DNS) m24dm8;
  • Sony (Sony) Erickson, Erisson, Bravia;
  • Dexp;
  • Hyundai (Hyundai, Hyundai;)
  • Helix (Helix);
  • Supra led;
  • Sharpe;
  • Knight;
  • Thomson;
  • Prima;
  • Jivisi;
  • Novex.

Overheating of internal parts or the TV case is a very common problem for modern appliances. In this case, the failure to turn on the device, a dark indicator and clicks will make themselves felt even in a working model. Let the appliance rest for a couple of hours and everything will work out. Also, the TVs will whistle, and the indicator will not turn on if the power supply is too heavily loaded. By replacing the transformer, transistor or microcircuit, you can solve the problem. If the old TV set goes out, or the old TV set goes out, then the master should look for the reasons here.

Why Philips TV does not turn on: what to look for the problem

If the light is on, but the TV does not turn on, then we can assume that the consumer has incorrectly applied the active mode. Many of the latest devices have features that allow you to enter a “sleep” state. With this turn of events, the TV must respond to the remote control. You just need to go to the menu and turn on the “TV” mode.

In case your Philipstea1507p TV is connected via an extension cable, it is worth checking if any parts are damaged, like microcircuits or a capacitor, or the power supply and buttons. In this case, it is best not to try to fix the problem yourself. Your wrong actions can only harm the device even more.

If you intend, nevertheless, to try to fix the device on your own, then read the instructions carefully, and follow only its instructions. Start by trying to turn the TV off and on again. If your TV model is relatively new, and purchased recently, then it should not have global problems. The simplest breakdown can be a faulty power button. It may just be disabled. If the indicator light on the TV is on, but the device itself does not turn on, then everything is in order with the power supply, it is just that the device did not turn on the first time. Don’t look for other reasons yet, just try restarting your device.

In order to start the system, try the following steps:

  • If the indicator does not turn on from the remote control, then try turning on the device directly from the control panel of the TV itself. Perhaps you just have a faulty remote control, or it has run out of batteries.
  • When the TV does not want to turn on from the TV panel, then you need to pay attention to the standby indicator.
  • A dark screen will also be with a weak transmitted signal, or if the antenna is poorly plugged in.
  • Sometimes after turning on, the TV screen lights up, and after a few seconds it turns off again. This may mean that one of the device’s microcircuits is broken, and its quick shutdown is a simple protective function. If the device goes into protection, you should call the telemaster.

If the TV turns on for a long time, then the cause may be a malfunction of one of the television units. Different models of TVs can have very different breakdowns. It is difficult to find serious faults without proper experience. It is better to give it to a specialist for repair.

A modern TV does not turn on, and the indicator is on: what to do

If the TV does not turn on, it is best to contact a service center. But, if today is a day off, or trouble happened in the evening, then you can try to fix the problem yourself. First of all, you need to conduct a preliminary inspection of the equipment.

The instructions supplied with the device give full recommendations on this matter, and ways to eliminate some of the main, especially frequent and easy breakdowns. Sometimes the problem of not turning on the TV may be the wrong connection of the device, and the fact that the shutdown button is accidentally pressed, or the shutdown button may be damaged. Could also burn out the power supply.

Before looking for a solution to fix the problem, you need to determine exactly what kind of device you have: LCD, plasma TV, or CRT. Currently, liquid crystal, CRT, and plasma devices are produced. If one of them breaks down, there will be no special differences in the repair, because the difference lies only in the “design”, and the internal structure of the device remains the same.

TVs almost always have various problems, but at first glance they all have approximately the same symptoms:

  • The indicator constantly blinks red and green;
  • The device clicks, hums, pops or whistles;
  • The indicator light does not work at all;
  • The TV does not turn on, but the indicator lights up blue.

A broken device will be equally characterized by an immediate lack of reaction to pressing the buttons on the remote control, and a complete shutdown while the power supply is turned on. If the plasma does not start immediately, try again.

Samsung TV does not turn on: red light blinks and beeps

Before you start troubleshooting, you must try to turn on the TV again. It is very possible that the problem is hidden in the power button, if for some reason it did not work stably. The indicator light may or may not be on. In view of this, special attention should be paid to it.

Many of those who have purchased a Samsung TV of the le40r81b, le32r81b, le23r51b, le40s62b, le20s52bp models face the problem of not turning on the TV. In this case, the light is on, but there is no damage. Don’t panic. In addition, you need to understand that the fault is not in the manufacturer of the equipment. A similar nuisance can happen to a product of any brand.

One of the most commonplace problems is a breakdown in the outlet or, in general, the reason for the blackout. You need to analyze the wiring for faults. Perhaps the breakdown lies in the shield or connector, which simply turned off or stopped working from a power surge. Sometimes the reason lies in the complete lack of electricity. You can check the outlet by plugging in another device or appliance. If there is no food in the entire apartment, then it is necessary to inspect the vending machines. If everything works for the neighbors, and your apartment is de-energized, and you have not identified any visual reasons, you need to contact a specialist. Let the master on duty take the necessary measures himself.

If the TV does not turn on and the indicator is off, you should:

  • Check the serviceability of the socket into which the device is connected;
  • Analyze the integrity of the device’s network cable;
  • Check the voltage in the network throughout the apartment;
  • Asking if neighbors have tension.

Only if there is a positive answer to all questions, it can be assumed that the malfunction must be looked for in the device itself.

Why LG TV won’t turn on and what to do?

When the LG TV does not turn on, its owners immediately set themselves up for expensive repairs and related expenses. The reasons why the indicator flashes before switching on and the red light is on, there is no signal at all, can be different. from user errors to technical failures. What to do, how to troubleshoot if the TV does not want to turn on. these issues should be dealt with in more detail.

User errors

The breakdown of complex electronic equipment is always expensive. the cost of repairing plasma or LCD screens is often unprofitable for the owner. When your LG TV won’t turn on, don’t immediately suspect the worst. Most likely, the causes of problems are elementary errors or accidents, which are quite easy to eliminate.

  • Lack of power supply. If no power is supplied to the TV, it will not work. An indirect confirmation of the problem can be a complete lack of indication on the case, lack of reaction to the remote control signals. It is worth checking if the button on the surge protector is not turned off, if the connection is made through it, make sure that there is a plug in the outlet.
  • The mode is selected incorrectly. In the case of switching to Sleep Mode, the screen goes out, but the device itself continues to function as usual, only without external manifestations. You can make sure that this is the case by pressing the Standby button on the remote control. the TV will not respond to other commands. Only when changing modes will the device be ready for use again. Do not use the “sleep” function too often, in this state the equipment is more vulnerable to short circuits and other network failures.
  • Wrong signal source. Sometimes the TV itself is turned on, but it is impossible to watch live TV or other content on it. Checking the signal source is usually enough to fix the problem. Instead of TV, there can be HDMI, AV. You just need to go to the correct mode.
  • Protection against unauthorized access is activated. In this case, the TV cannot be controlled from the buttons built into its body. But from the remote control, all functions will work. The option is positioned as “child protection”. they will not be able to turn on the equipment themselves.
  • Lost brightness settings. If, by setting this parameter, the user has chosen the minimum values, the screen will remain black. In this case, you need to perform the adjustment and return to normal brightness values.

A detailed study of the manual supplied with the TV is usually enough to fix most user errors: it lists many common problems.

Technical difficulites

Among the technical faults, due to which the TV does not respond to the switch-on command, fuse breaks are most often detected. They are designed to protect expensive equipment from voltage surges and, for obvious reasons, can burn out. If this happens, the TV turns off, does not respond to commands from the remote control and buttons for a long time, you need to contact the service center specialists for a more accurate diagnosis.

The reasons why LG TV equipment does not turn on may lie in other technical malfunctions.

  • Damage to the power supply. It is located inside the case, in case of failure, it can give such symptoms as a long screen load, extraneous sounds (clicks, whistles), an intermittent indicator signal. it blinks, the contact is unstable. A breakdown can be associated with overheating, overload, power supply burnout. And also after a strong voltage drop, a thunderstorm, a protective blocking against a short circuit may work.
  • Software glitch. If an error is found in the firmware or the user himself has violated the correct algorithm, the TV goes into an eternal reboot mode, does not respond to other commands. This sometimes happens when updating the TV system to webOS. If this happens, you need to download the correct version to an external data storage source and install the update from it manually.
  • Malfunction in the backlight or matrix. At the same time, the logo does not appear on the screen when loading, there are stripes or light spots on the dark panel, cracks appeared on the glass. Sometimes there is sound, but the picture is not broadcast.
  • The remote control does not work. In this case, the indicator on the body flashes in a regular manner, the buttons on the TV itself turn on and switch functions. Commands do not pass from remote control.
  • Unstable voltage. In this case, the indicator glows red, flashes intermittently (in normal mode, this happens before the image on the screen turns on). The power system of the TV signals a weak current in the network, it is not enough to display the picture.
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LG TV does not turn on indicator flashes

LG TV does not turn on, light is flashing

Is your LG TV not turning on with the indicator blinking? First you need to understand the nature of the indication.

If the indicator flashes in response to remote control signals. this is a normal reaction, and if there is no turn-on and no image is observed, then most likely the inverter has failed or the TV does not have enough power to turn on and the problem is in the power supply (external or internal) or in the power board. With such symptoms, you need to contact a trusted service center.

But before calling the repairmen, just in case, you need to check the TV settings, because the likelihood of what you call “non-inclusion” is a banal absence of an image due to an incorrectly selected video output channel. non-zero, we often meet 100% serviceable equipment in our service center. Example, the signal goes through the antenna, and on the remote control you have selected the HDMI port to output the image, to which nothing is connected. To clear your conscience. press the TV / AV and SOURCE buttons.

does, turn, indicator, flashes

If you are experiencing problems connecting the TV to your computer. first try changing the resolution on your computer. What you have installed now may not be supported by your TV.

If we “figured out the terms” and are really talking about non-inclusion, and not about the absence of an image, then we return to the blinking indicator light.

LG TV does not turn on light is blinking

Take a closer look at exactly how it blinks. Modern technology is often equipped with a self-diagnosis function. If your TV was purchased in the last 5-8 years, it probably carries this functionality.

Count how many times the light blinks in one cycle. After that, find the instructions for your TV, in the table of contents find the section with problems. This section will present a number of malfunctions and the corresponding signal that the TV communicates with its indicator light.

If the malfunction is technical, not system (software). only an experienced master can accurately diagnose and repair TV.

You can try to fix a malfunction of a systemic nature yourself if your TV has a forced reboot function. In principle, it is implemented in the same way on TVs of many brands. you need to pull out absolutely everything (this is important) wires and cords from the TV, pulling out the power cord last and leaving the TV alone for 5-7 minutes. After that, plug the TV back into the outlet, first the power cord, and then all the peripheral wires. In some cases, such an algorithm of actions completely restores the operation of the device.

If you cannot cope with the problem that has arisen (which is absolutely normal if you do not repair TVs and you do not have a small, cozy, but very well equipped workshop with measuring and diagnostic equipment). you better call us, we are all right with that. As with everything else. terms, prices, conditions, warranty and many years of experience;)

LG TV does not turn on indicator flashes. Why, when you turn on Alji’s TV, the red light blinks several times and the screen does not work

LG TV does not turn on, the lamp blinks several times and turns off. I recently encountered such a problem. Less than 2 years after the purchase, my Algie TV stopped turning on, the screen does not work except for the flashing of the indicator. At night, the telly worked fine, but in the morning I didn’t want to turn on, just the red diode blinked 3 times and that’s it.

As I heard, the TV performs self-diagnostics and, if problems are detected, it may simply not turn on, but it outputs a certain signal by flashing the red diode, allowing you to find out the cause. I called LG support at a toll-free number and asked for a decryption of such a blinking light bulb, to which I was told that they did not give such information to ordinary users and offered to contact the official LG service center.

But since the warranty for the TV has already expired and there is no LG service center where I live, I had to carry the TV for repair to an ordinary TV master. Honestly, I did not expect that the master would so quickly determine the cause of the breakdown of the TV, but he had enough information from me about the flashing of the diode several times when the LG TV was turned on, as he immediately gave out the cause of the breakdown. His answer was as follows. the LEDs of the TV backlight burned out and it is necessary to replace it and showed another disassembled same LG but with a larger screen diagonal in which the same problem.

Why the backlight on LG TVs burns out, I’ll write a little below. At first I thought that I had a lot of money and warned that if the repair costs a lot of money, then it is not worth doing it, but the master said that the replacement work would cost 1000 rubles, replacing each backlight element for 200 rubles. As a result, the entire repair with the replacement of 5 backlight elements cost 2,000 rubles. There are a lot of such elements on the TV, but only 5 of them burned out on mine. Perhaps the price for the work and the cost of the backlight LEDs themselves in your city may be more or less.

As I noticed, after changing the brightness of the backlight, the picture on the screen did not get worse, but your TV backlight will last longer.

The article was posted on May 11, 2018. Edited 19.04.

Reviews LG TV does not turn on

UPDATE REVIEW PAGE Author: JURIJ 04-12-2020 15 hours 14 minutes Message: Please don’t be fooled. Blinking 3 times of the indicator is for many (I can not vouch for all) LG TVs. This is a normal TV turn-on and not an indication of an error. Author: UMID 20-10-2020 07 hours 58 min Message: LG 32ln541u indicator light is on when turned on, the LG logo opens and immediately turns off and the indicator lights up. what to do? Author: Mikhail 25-11-2019 10 hours 33 min Message: Yesterday I took the TV for the same symptoms, by flashing the indicator, in the workshop they suggested replacing all LEDs with improved strips with a guarantee for a year and a question price of 6 thousand rubles. Author: Artyom 28-11-2018 18 hours 08 min Message: Thank you very much. And today I had the same symptoms: it froze, then I turned off the TV set, and did not turn on. the red indicator blinks three times. sadness. Is it realistic to identify and replace the backlight yourself? I have never repaired telly. Author: Sergey Vladimirovich 17-09-2018 22 hours 05 minutes Message: Many thanks to the author for the article. helped. And it was already sinning on the power supply, it turned out. backlight (replaced 4 LEDs. To Viktor Borisovich: spots on the screen. because the reflectors are incorrectly installed after replacing the LEDs. is treated. Author: Tim 02-09-2018 22 hours 51 min Message: Bring the telly back where the repairs were done, most likely the LEDs were poorly fixed and they moved away from their nests and individual points of light on the screen became visible. Author: Victor Borisovich 01-09-2018 15 hours 40 minutes Message: After repair with replacement of the backlight, I now see white bright spots on the TV screen about 5 pieces on my TV. The screen itself works and everything shows only bright points of light that interfere with the eyes, now I don’t know if the backlight burned out again, but if it burned out, the TV would not show how it was when I took it to the repair. Has anyone encountered such a problem or needs to be carried back for repair?

Turn off power saving and sleep timer

A black screen may appear due to the user accidentally turning on the sleep timer or power saving mode. The timer function can automatically turn off the TV after a set period of time. Power saving mode can also cause a similar problem in Smart TV.

To resolve the black screen error on the TV, you will need to disable these features. To turn off the sleep timer, do the following:

  • Press the menu button on the remote control.
  • Select “System” and click on “Time”.
  • Select “Sleep Timer” and turn it off.

On the other hand, in order to turn off the power saving mode, you must follow the steps described below:

  • Using the remote control, press the menu button.
  • Go to settings on TV.
  • Select a power saving mode and turn it off.

If the above solution still does not solve the problem, proceed to the next step.

Phillips TVs

Occasionally, the Philips Plasma TV screen may not light up, or there may be a red and white flash at the bottom of the TV screen, while in other cases, the Power LED may have a blinking error code or be steady on. Typically, these symptoms are common in Philips plasma, and they are due to a failure in the power supply, main board, scan cards or plasma display. While some of these violations can be easily corrected through troubleshooting, others may require professional assistance.

The main reasons for the failure of TVs Philips, Thomson, Supra, Sony:

How to Fix LG TV Not Turning On Red Light On || Quick Solve in 2 minutes

  • Distorted image. It occurs due to the fact that the TV panel could fail. Usually, in this case, it is impossible to repair the panel yourself; you will need to replace it.
  • Philips TV constantly returns to the settings menu, even after exiting the menu. In some cases, it could be a firmware bug. Therefore, in such a situation, all the user can do to fix it is to update the firmware using a USB drive.
  • No sound. In many cases, the failure can be in a faulty SSB board. If so, your best bet is to replace the board. In this case, expert assistance is recommended. However, the user can replace the board by himself if he has the necessary experience.
  • The red power indicator of my Philips TV flashes continuously. The most likely reasons that can cause this problem are: power supply, main board, scan driver.
  • Horizontal red lines appear on the Philips TV. There can be several possible problems: faulty buffer Y board, logic board, or TV main board. In such a case, the best technical means is to seek help from an expert who could conduct the necessary testing of the nodes inside the device.
  • Philips TV enters standby mode when the power indicator flashes six times and then quickly three times. The error code on the TV indicates that the power supply or the support and buffer Y boards are faulty. Therefore, to fix the problem, you need to visually check if there are bad capacitors on the power board. If available, replacement of faulty components will be required. If after this the error still persists, then the cause of the failure is a defective buffer Y board, in which it is necessary to measure the voltages at the outputs of the power supply. If the readings are correct, both the buffer and support boards will need to be replaced.

In most cases, if the user does not know how to fix the problem with Philips plasma TVs on his own, then it is best to contact a specialist.

Restoring your Smart TV to work should begin with diagnostics. It is extremely important to install the failed hardware section in time. There are times when at first the light diode shines green, but literally a couple of minutes later, the blinking turns red. This code indicates a breakdown of internal components. Once connected, the processor sends a signal to the appropriate blocks. If at least one of them does not give an answer, the technological process is suspended. The TV will not light up until the damaged unit is repaired.

Diagnostic work should be carried out with the involvement of specialists. It requires not only knowledge, but also the appropriate equipment. However, before contacting the service department, it is recommended to perform a simple check of the correct operation of external components, power lines, indication and communication.

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How to fix LG TV Standby Light On But Won’t Turn On || lg tv wont turn on red light flashing

Checking web sources

It is performed to determine if the problem is with web sources. To do this, use the remote control by pressing the “Menu” button. If it is displayed on the screen, then the TV is in good condition, and the problem is related to sites such as SAT Box, Cable Box, DVD player, Amazon, Roku and others.

You should double check the above information source web pages to make sure they are working properly. To do this, it is recommended to turn them off and then turn them on again. This will solve the temporary connection error and black screen problem. If this does not help, you need to try connecting another web source to the TV, or the same source, but on a different TV. This will allow the user to find a likely solution to the failure.

Problems of TVs of different brands

Most plasma TVs are manufactured by three well-known brands: Samsung, LG, and Panasonic. Typically this is a flat panel plasma display (PDP) that uses ionized gas or plasma to produce images on the screen. These device designs have their own differences, but many of the basic setup operations are similar.

If there is no picture and no sound on the plasma TV, the standard steps to take to troubleshoot the problem are:

  • Turn off the TV and unplug it from the cables.
  • Wait 5 minutes for capacitors to discharge.
  • Disconnect the connector going to Z-Sustain and then reconnect the TV.
  • Check the sound. If there is sound, then the Z-sustain fails. If not, continue with the following steps.
  • Unplug the TV and wait 5 minutes. Then disconnect Y-Sustain and reconnect Z-Sustain.
  • Plug the TV back in and check the sound. If there is sound, then there is a problem with Y-sustain.
  • If the error occurs due to Y-sustain, then you need to check the buffer.
  • Turn off the TV and wait 5 minutes for a full discharge to occur and the LED cannot blink.
  • Clear the buffer and check if there is an image with sound.
  • If TV has two buffers, detach the top buffer and see if there is an image on the bottom screen.
  • Then turn off the lower buffer and see if the image appears on the upper screen.
  • If, after removing one of the boards, the user sees an image, then there is an error in the removed board.

Indicator shines red

The situation when the TV cannot be turned on from the remote control or the buttons on the device itself, and the indicator is on, is common. Usually, in such cases, they say: “The TV does not come out of standby mode.” There may be several reasons for this, but you need to start with the most obvious ones. Replace the batteries in the remote control, remember from which button the TV was turned on earlier and, if this does not help, call the master on the TV or, with the proper skill, start an independent TV repair.

The glow of the indicator is more or less likely to indicate the health of the power supply. However, the diagnosis of this malfunction, like most others, should be started with an analysis of the operation of this board. Checking voltages in standby mode, their stability when trying to turn on in the operating mode, measuring the level of filtration, visual inspection of parts helps to assess the health and functionality of the power supply. Electrolytic capacitors, the upper part of which has a characteristic swelling, must be replaced.

In the section “Malfunctions of TVs”, the real history of repairs of TVs with a similar manifestation of a defect is considered on the example of TVs Philips 42PFL7433S / 60, Samsung LE40R82B, Philips 20PF5121 / 58 and other models. The behavior of television sets was somewhat different, but the reason was the same. There was a change in the properties of electronic components, mainly capacitors, in which the power supply could not provide a confident start, affecting the operation of the entire system so that the indication was present, and the TV did not turn on. If in one case the malfunction was visible to the naked eye, then in the other, its localization required a long process of diagnostic measures and measurements.

The elimination of an obvious defect in the power supply does not always lead to normal operation of the TV as a whole. In some cases, an unstable power supply leads to the loss of information in the Eeprom and SpiFlash memory chips. At the same time, it is possible to turn on the TV and switch it to operating mode only by updating the software (firmware) on the programmer. The workshop is equipped with these devices in sufficient quantity for different types and cases of microcircuits. When repairing with your own hands, difficulties may arise with firmware without equipment and a firmware database for television models, and contacting a service organization in such a situation is morally and economically justified.

Sometimes such troubles occur when there is a malfunction in the power circuits on the TV’s motherboard. Usually in this block there are several secondary sources, made according to the scheme of DC-DC converters or voltage stabilizers. An indispensable condition for the correct operation of the processor and devices associated with it is a stable supply voltage in the voltage range at which their normal functionality is ensured. In cases where these conditions are not met, the consequences can be unpredictable, and the command to turn on the device can be ignored until the necessary power supply parameters are provided.

does, turn, indicator, flashes

The indicator changes color to green and back to red

This behavior most often indicates that the processor generates a command to turn on the device and sends it to all executors. If any of the TV units does not execute the command, for example, the power supply does not turn on in operating mode or the inverter is not able to start the backlight, then the processor, without receiving confirmation that everything is in order, cancels the power on and puts the device back into standby mode. In Sharp LCD TVs, after five unsuccessful attempts to turn on the backlight, the processor blocks the startup altogether, until the errors are cleared through the service menu or until the contents of the Eeprom memory are replaced. This behavior will continue until the cause is eliminated: defective lamps replaced, inverter, power supply, or other faulty component of the TV chassis repaired.

The indicator turns green, but nothing happens

The situation is ambiguous and can have many reasons for this behavior. In order to make sure that the main board is working, the supply voltages are measured and the commands to turn on the power, backlight, etc. are examined. Perhaps, when you switch the TV to a channel with a tuned program, a sound will appear, and this already suggests that the cause of the malfunction most likely lies in the inverter or power supply unit with LED backlighting or in radiation sources.

If the LED (light bulb) indicates the operating state, but the power-on commands are not received from the motherboard, the system does not respond to the buttons and the remote control, the software of the memory devices on the main board may fail. There are situations when the processor issues a command to turn on the power supply, but does not start the inverter, or issues a Dimm command that determines the brightness of the backlight, in the absence of an On / Off command. In this case, updating the software, firmware helps to return the normal sequence to the logical processes occurring on the motherboard.

In some cases, the appearance that nothing happens when turned on can be created by the motherboard, blocking the supply of signals to the matrix controller or transmitting such information in which the screen remains dark. The T-con itself may be faulty, as well as the LCD matrix itself. Each option is considered and diagnosed separately. At the same time, the backlight turns on, but has a weakly pronounced character due to the underestimated image brightness.

The TV does not turn on, there is an indication

The indicator (light bulb) constantly flashes chaotically

This state of the device only indicates a malfunction and does not contain significant information about possible problems. It is necessary to diagnose the entire device, starting with checking the power supply and secondary converters on the system board. Further, the buses for the exchange of information between the processor and memory microcircuits, the sending of commands by the processor to turn on and the processing of these commands by the peripheral components of the television chassis are investigated.

TV does not turn on, indicator signals

After a working day we come home, watch TV, relax. And it does not even occur to me that it could be otherwise: the equipment suddenly stopped turning on. Now you need to take time off from work to take the equipment for repair. And then wait a week or two without a household appliance, feel stress from future expenses associated with a TV breakdown.

Indicator is off

We check the network connection before continuing to troubleshoot. In the case where the connection is made through an extension cord, use a direct connection to the socket. You will have to purchase a new extension cord.

If the connection is checked, then there is a problem with the power supply, or rather, the block circuit is open, the fuse or resistor is damaged. Plasma and LCD TVs from Sony brands face this problem. LG. Samsung and others. Self-repair of a breakdown can be expensive for the owner of the equipment. Restoring the power supply by replacing capacitors or other circuit elements is more profitable than a complete replacement of the unit.

A blown fuse is also a common reason for non-working equipment. This happens with power surges. CRT TVs are especially prone to such breakdowns. It is possible to replace the fuse yourself if it is located in an accessible place, as on the Vityaz model. In order not to rack your brains in the search for a malfunction, entrust the repair of the TV to the Service Center “21st century”.

Reasons for not working TV

To carry out repairs on your own, you need to find out what the problem is. Each malfunction has its own symptoms:

  • It often happens that the indicator is on, but the TV does not turn on. The reason may be an incorrectly selected mode, no signal from the antenna. Worst scenarios are also possible when the microcircuit burns out or one of the blocks fails.
  • If the indicator flashes, then it is worth looking for the operating instructions and determine the corresponding malfunction.
  • If the TV turns on immediately turns off, then we are talking about power outages.
  • The reason that the TV does not turn on, the indicator does not light up, there may be a malfunction of some part.

Let’s figure out what to do with this behavior of a household appliance.

The TV does not turn on, the indicator is on

First of all, we check that the AV mode is not turned on, otherwise we switch to TV and watch your favorite program. It didn’t work, then we check for the presence of a signal from the set-top box or antenna. Also check the cable. The TV may not respond to the remote control, in which case replacing the batteries will help. This is all that you can do on your own without the appropriate knowledge.

does, turn, indicator, flashes

Invite a technician if you suspect an internal problem. Do not ignore if the TV turns on for a long time. Replacement of a burnt-out microcircuit or restoration of the control unit may be required. For Toshiba brands. DAEWOO. BBK this is especially true.

The indicator flashes when the TV is connected to a computer

The TV screen suddenly goes dark or the unit does not turn on immediately. Most likely, the computer has entered “hibernation” mode. It is enough to press any button on the keyboard or move the mouse. The picture will reappear on the TV.

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