Repair TV SUPRA: malfunction and problem solving

SUPRA TV Repair Specialists of service centers account for not too often – this technique is made quite well, but it also happens, hardware and program errors. Understand why the technique does not turn on, the indicator is red or the light bulb is green, how to fix the TV with your own hands, if there is no sound and there is an image, it’s quite difficult. Following useful recommendations, you can not only understand the problem, but also to completely eliminate it.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

What if not turning on?

The most common repair of the Supra TV is needed in cases where difficulties arise with its inclusion.

The black screen without the slightest glimpses always looks frighteningly, but you don’t really panic.

There is a whole diagnostic system, with which you can recognize the problem.

  1. TV does not work, no indication. It should be checked, where exactly in the circuit of the power supply. It may be no current throughout the house, in a separate outlet or network filter – it has a special fuse that is triggered with a short closure or voltage jump. Also for integrity you need to check the plug and wire. If everything is in order, the fault is most likely due to the breakdown in the power supply.
  2. The indicator is red. If it does not manage to turn on the device from the remote control, nor from the buttons, you need to check the network fuse and the power supply in general. Also the cause of the problem may be damage to the control board.
  3. Light bulb is green. This indicator signal indicates cracks or other damage on the control board.
  4. TV immediately turns off. This can occur with reduced network voltage that does not allow equipment to fully function. There may also be an appearance and disappearance of the signal on the indicator.
  5. TV is not always included. There may be several reasons for such a problem. For example, such “symptoms” are talking about breakage of the power supply, Flash memory fault, processor failure. Depending on the type of malfunction, the cost of repair is varied, as well as the possibility of its independent execution.
  6. TV turns on with a big delay. If the image appears after 30 or more seconds, the reason may be the failures in the memory system or software. Data reading occurs with errors, slows down, remove the breakdown by flashing or updating. From the technical reasons you can allocate burned capacitors on the MAIN-board.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

After examining all possible options at once, detect the source of trouble will not be difficult. After that, you can start repair – on your own or with access to the service center.

Repair illumination

The process of repairing the backlight, despite the seeming ease, is quite complicated and long done. To access the desired module, the TV has to be disassembled almost completely. In this case, the screen is turned on, reacts to the commands of the console, the channels are switched, the lock is not activated.

Usually, LED burnout is a consequence of production marriage or developer errors. It is also impaired can be powered by the backlight itself. However, whatever the reason, eliminate the breakdown on their own or in the service center will still have to. To do this, open the case, breaking the seals. If a TV on warranty, it is better to entrust work to specialists or contact the store to the seller.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

To get to the LEDs, from the housing will have to remove all the elements, including the matrix or “glass”. Need to act neat and carefully. In Supra TVs, the backlight is located at the bottom of the housing, 2 rows. With the power supply, it is connected through connectors located in the corners of the frame on the panel.

First thing in diagnosing need to check the voltage at the connection site. On the connectors it is measured by a multimeter. On the non-working output, the voltage will be noticeably higher.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

When dismantling, it can be noted that the circuit of the connector is the circuit of the ring-shaped cracks. This is a common marriage of technology in this manufacturer. It is him, and not the LEDs themselves most often have to change. Experienced masters recommend to remove the connectors at all and perform a direct soldering of LEDs to the power source, otherwise the problem after some time will repeat again.

Repair TV SUPRA: malfunction and problem solving

Power unit repair

SUPRA TV power supply faults can also be eliminated with your own hands with radio electronics skills. For diagnostics, the desired element is dismantled from the TV. Previously removed the back cover, the LED screen is laid with glass down on a soft base.

BP is in the corner, it is fixed with several screws, easily removed from the nests with a screwdriver.

Repair TV SUPRA: malfunction and problem solving

The dismantled block must be examined for damage. If there are visible defects (swollen capacitors, blurred fuses), they are falling, replaced with similar. When restoring normal voltage, the unit can be installed in place. If the problem remains, you need to change the chips, checking and rearing faulty multimeter.

Repair TV SUPRA: malfunction and problem solving

Does not react to the remote

A malfunction at which the TV does not respond to the remote, may be associated with the remote control. Checking its health is carried out in the following order.

  1. Open battery compartment. Check availability, correct installation of batteries. Try to turn on the TV.
  2. Replace batteries. Repeat the command from the TV console.
  3. Enable smartphone in camera mode. Attach part of the remote control with the LED to his eye. Press the button. The operating console signal will be displayed on the display as a light outbreak of purple color. If the remote control is in good, and the signal does not pass, probably defects the IR signal reception unit on TV.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

If the console does not work, sometimes the cause of the problem is the contamination of the board, the loss of contacts is. In this case, you need to clean the device. Its case is disassembled, remove the batteries, the alcohol liquid wipes all contacts, the keyboard is washed with special means. Before assembly, the remote care is carefully dried.

If the TV writes “no signal”, without responding to the command of the PC. signal “, and the connection is made through the receiver, eliminate the problem is quite simple. It is enough to repeat the action several times. After the page of clicking on the remote button, the image on the screen will appear.

Repair TV SUPRA: malfunction and problem solving

How to return the sound if there is an image?

The reason why there is no sound on the TV may be related to the user’s own error. For example, if a silent mode button is pressed, there is an appropriate icon on the screen, you can return the normal volume in 1 touch.

Also, the sound level can be reduced manually, including by chance – when touching the remote control button.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

The process of diagnosing faults of the SUPRA TV speaker system looks like this.

  1. When you turn on the TV sound no immediately. Need to disconnect the device from the network, wait a while, then connect again. If there is still no sound, you need to connect additional speakers or headphones. In the absence of such a problem while listening through the external acoustics, repair of speakers.
  2. When watching TV sounded sound. The smell of gary or burning plastic appeared. You need to disconnect the device from the network, most likely, a short circuit occurred on the microcircuit. Can be fixed only in the workshop.
  3. When you turn on the sound is, but its volume level is very low. Need additional diagnostics. The problem can be localized in the radio channel, motherboard memory system, central processor.
  4. Sound appears with a delay, a few minutes after the launch of the TV to work. The source of problems can be a defective connector, poor-quality speaker or discussed contacts. If there is a suspicion of the factory marriage, you need to contact the seller or manufacturer, require repair under warranty or replacement of goods.
  5. No sound when connected via HDMI. Usually such a malfunction is caused by the fact that there is a defect of contacts when connecting to a PC. You need to replace the port on the device.
  6. Sound on Smart TV does not turn on with the Mute button. This is a software error associated with settings. A malfunction is eliminated by reinstalling the operating system. In this case, all previous settings are removed.

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

Repair TV SUPRA: malfunction and problem solving

These are the most typical faults that Supra TV owners are faced. Most of them can be eliminated independently, but if the breakage is not diagnosed or is associated with the system part of the system, it is better to trust professionals. The average cost of repair begins from 1,500 rubles.

About what to do if the SUPRA STV-LC19410WL TV is not turned on, look next.

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