TV with sound and no image is what happened? Reason one
When there is no image with sound on the TV, you should first check if your operation is caused by a mistake. Also, if after turning on the TV, there is only some noise but no image, this situation is likely to be a problem with the high-frequency head, in the amplifier. According to the working principle of the TV, this cause of sound without image, the picture tube is able to display the machine settings menu, audio and video interface, you can play the external audio and video signals.
TV with sound and no image is how? Reason two
When the TV has sound and no image, its second situation is that there is a normal TV program sound, but no picture. This means that the high frequency, intermediate frequency and companion circuit is in normal working condition, there is nothing line output circuit without short-circuiting fault. If the screen can display the TV setup menu, then this problem is likely to be because of the companion sound separation to the video playback section.
TV sound without image is how? The reason for the introduction of three
The TV has sound without image, the third situation is normal sound, but no screen menu. In this case, you can turn on the TV brightness and contrast, pay attention to the state of the screen, and then turn off the TV. If you turn off the moment you see a bright flash of light on the screen, and with a slight discharge sound, you can be sure that the picture tube is not a problem. This time to see if the picture tube filament is bright. The fourth situation is that if it is a TV with remote control, due to the failure of the CPU chip, resulting in loss of brightness and loss of image is also possible.
