Why the TV does not show the image in normal sound

In the market of household appliances LCD (LCD) TV took a worthy place, along with LED, which proves them Comparative characteristics. Manufacturers are introducing the latest technology in devices and expand the functionality of devices. Despite the release of new models of plasma technology, the device still fails. Many users are familiar with the situation when the picture is not broadcast on the display. In this case, you need to find out the cause of the fault and call the wizard. This article discusses why there is sound on TV, there is no image on the screen, and how to eliminate system defects.

Monitor fault indications

Problems with video monitors are very common.In most cases the display does not glow at all. But there are other situations:

• the picture is blinking, with ripples;
• video signal is interrupted;
• right or left visible light vertical bar;
• blinking lights;
• squares or stripes appear in the image;
• the contour of the video image is red or green edging;
• on the screen vertical colored stripes;
• the picture is subtle.

Causes of image loss

The reasons why the image disappears, and the sound is there, maybe a great many. It’s not always possible to determine for yourself what exactly could break, and professional diagnostics will be required at the service center. No need to blame the manufacturer, as a similar defect is found in different TVs: Samsung, Lg, Sony, Philips and many others. It happens that the TV turns on, a screen saver appears, after which the showing display goes out. Channels using the remote switch at the same time, and sound may be present.

The main reasons may be the following:

• the connecting cord is disconnected from the socket;
• wire damaged;
• the inverter supplying voltage to the backlight lamps broke;
• defective matrix, motherboard, backlight unit;
• a defect in a convector, a cable or a decoder;
• electrolytes failed in the power supply;
• the unsuitability of an electrolytic capacitor;
• in kinescopic TV, a defect in personnel or lower case scanning;
• The loop went from the matrix to the board.

Troubleshooting Tips

Tips when there is no image on the LCD TV, but there is a sound as follows.

1. Make sure the quality connecting cable. Replace the worn wire with a new one.
2. On the back of the device, check the connection of the cord to the socket.
3. Increase the volume to maximum. After this action, the device will again work as before.
4. Avoid any mechanical effects on the telly.
5. Check out device settings. Turn on or turn off the output channels of the device.
6. If network interruptions are frequent, purchase an uninterruptible power supply.
7. In order not to aggravate the situation, contact the service center for the repair of equipment.

Note! Our recommendations concern only the working monitor. In this case, the screen saver appears when you turn on the technology. If the TV does not display the splash screen and the display is dark, it indicates that some element of the screen is not functioning correctly.

Test cable

In the case when the sound is played on the unit, but there is no image, you need to check the quality of the wire. Use the program Moninfo. The utility is designed to check the transmission of video and audio. If the program detects failures, it becomes clear that the problem is in the connecting cable. From the right choice this seemingly insignificant detail, the quality of the image in principle depends very much.

Samsung TV troubleshooting

First you need to test the video signal by completing the following steps:

• on the remote, select the button with the image of the house;
• go to settings;
• select the options “support”, “self-test”, “run image test”.

After issued problems, try to solve them using manufacturer recommendations:

As you can see, many malfunctions can be fixed by hand. Even if your Samsung TV does not turn on at all - this can also be corrected at home.

Note! If the test is not displayed, the fault is internal, in the device itself.

Repair of breakdowns in cases where there is sound on the TV, while there is no image, requires qualified diagnostics of equipment and replacement of the defective component with a new one. In the reverse situation, when sound is gone, and the image is present, sometimes you can get by with a simple correction settings. Read more about troubleshooting various issues in the article about do-it-yourself TV repair.

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