Ask for the reasonHisense TV, every time you turn it on, there is a small black screen at the top of

Contact customer service and try to find it after sales.

The black screen of the TV and the sound may be caused by the abnormal power circuit of the TV.

This problem is manifested by the fact that the panel buttons do not respond in any way, and the indicator light does not light up. When encountering such a problem, you should first check whether the 12V voltage and 5V voltage of the TV are normal.

If the voltage is normal, it may be that there is a problem with the number of stages of the input power supply circuit, generally the fuse of the power supply is burned or there is a problem with the voltage regulator chip, and the fuse of the TV is burned and the fuse of the TV needs to be replaced.

Hisense LCD TV black screen has sound troubleshooting method。

1. Check whether there is a problem with the signal source input or program source of the TV that causes half of the black screen to appear. For example, the connection line of the signal source input is loose, resulting in poor contact, resulting in a black screen. If it's a problem with the program source, you can fix it by switching to a different program channel**.

2. If the TV still displays half of the black screen after eliminating the signal source input problem and program source problem of the TV, it can be considered as a hardware problem, including poor contact caused by virtual soldering of internal components, or poor contact of internal circuits, screen failure, screen cable breakage, motherboard chip failure, etc. You need to contact the after-sales service of the TV.

1. Check whether there is a problem with the signal source input or program source of the TV that causes half of the black screen to appear; For example, the connection line of the channel number source input is loose, resulting in poor contact and a black screen is displayed; If it's a problem with the program source, you can fix it by switching to a different program channel**.

2. If the TV still displays half of the black screen after eliminating the signal source input problem and program source problem of the TV, it can be considered as a special hardware problem, including poor contact caused by virtual welding of internal components, or poor contact of internal circuits, screen screen failure, screen cable breakage, motherboard chip failure, etc.; You need to contact the after-sales service of the TV for maintenance to solve the problem.

Turn off the power and turn it on again. No, you have to report for repair.

1. The backlight plate of the TV screen is abnormal.

Solution: Let a professional master disassemble the machine for inspection and maintenance.

2. There is an interference source next to the TV.

Solution: Remove electrical appliances and other devices with magnetic field interference next to the TV.

3. The TV circuit is soldered.

Solution:First of all, find out the position of the circuit virtual welding,After finding the position of the virtual welding of the TV,Re-weld the place of the virtual welding,Connect it well to solve the problem of the phenomenon of flickering and dimming of the image。

4. The TV has a long service life, and the aging and deterioration of electronic components or too much dust in the machine will overheat the machine and cause the components to burn.

Solution: Replace the TV with a new one, and also prevent the aging TV from radiating a lot.

5. The picture tube of the TV is damp or aging.

Solution: Disassemble the machine for detection, and then replace the corresponding picture tube.

The first possibility is that the tab half screen in the display screen is burned out!

The second is that the FPC is connected to the logic board and falls off and pulls.