Take the digital set-top box down, use the wire, there is a sound, but also can see, but the digital set-top boxes connected, there is no sound!! And, the set-top box to get someone else's home trial, there is also sound, indicating that set-top boxes are not bad! Is the digital line changed, or is there no sound?Are set-top boxes and TV boards incompatible? But it took me more than a week to be good and suddenly broke upLwpgenius | browse 8548
Like the 1: TV, suddenly there is no sound, and the image and other functions are ok.First, check that the settings are correct. First, check if there is a mute key to the remote control. Next, check that the volume is set to 0. Again, check the signal source, signal cable can check the remote control sound system is in the D/K format (Shenzhen users in the I standard); set-top box or satellite receiver to channel button to the left channel, and check the audio line is connected correctly.Second, listen to noise. If the noise is loud sound if offset, can change a sound if a fine or sound if you can restore the voice. If the noise is very small, it is not a sound intermediate frequency fault. Check the audio power amplifier section to see if the performance of the power amplifier block or peripheral component is worse. If you don't understand the electronic, don't tamper with it, so as not to cause unnecessary loss. Please check with the professionals.
Phenomenon 3: the computer connected to the TV, the TV has no sound reasons:That's because the computer connects to the TV just to transmit the video signal, and the audio signal is not connected, so you need to connect an audio signal line to the TV set in the host computer.The first method, using the HDMI interface HDMI interface can output sound, first install the driver, in the device manager HDMI audio output, then disable the onboard sound card, and then select the HDMI in the sound output control panel voice options can output sound. If the DVI-HDMI adapter is used, use the adapter for the 24+1 needle as much as possible.Second kinds of methods, find an audio line using the audio line end is connected to a TV audio input port, the other end is connected with the computer headset interface can be, a line of 2 end is 3.5mm, very convenient, pay attention to the length of the line. Another line is 3.5mm audio line, and the other end uses lotus AV color difference line, the method is the same.
Phenomenon, 2: installed digital TV set-top boxes, the TV did not sound:First, check whether the wiring is good. Change the audio line and try to hear if there is any sound. Play DVD there is no sound, there is sound can prove that TV is no problem.Two, such as good wiring, the problem lies in the following two cases:1, set-top box problems. Considering that your set-top box is new, this may be in the majority.2, signal reasons. The signal is not good, there will be a sound, there will be no fault. Please contact the local cable communication department.
There is a reason why the TV set doesn't sound:1 mute or audio power amplifier is broken.2 、 the audio line is not connected or the connection is wrong.3, digital set-top box fault.4, audio circuit or line failure.
