Hisense TV current sound,Hisense LCD TV current sound is particularly loud What s going on

Dear Hisense users, hello!

There may be two reasons for the current sound of TV:(1)After the TV is connected to the set-top box,The TV itself can make sound,And the set-top box will also make sound,The two are easy to interfere with each other,In this case,It is recommended that you use the original remote control of the TV to turn down the sound of the TV as much as possible (but do not turn off the sound of the TV),Then use the set-top box remote control to turn on the sound of the set-top box a little louder,This can reduce the sound of current interference。 (2) Because flat-screen TVs and set-top boxes belong to a class of products, both have grounding wires, which may be interfered with by the ground wire, and make noise through the accompanying power amplifier circuit, if this is the case, it is recommended that you connect the two on different socket rows.

You can judge for yourself based on the above opinions,If there are still problems, it is recommended that you call Hisense national service**,We will arrange professional and technical personnel to serve you,I wish you a happy life。

The first step is to check, you first connect the set-top box to other TVs to see if there is a current sound, if so, it is a problem with the set-top box. The second step is to check,TV does not pass through the set-top boxThere is a signal here whether there is a current sound,If so,It is a TV problem。 If there is no problem with either of the above, then it is certain that your cable is not connected.

In fact, your problem is a kind of interference signal,If you use a set-top box at home, which is commonly known as digital TV,Basically, this problem will occur。 This is a kind of ground interference, the solution is very simple, just remove the ground wire, if you don't want to remove the ground wire, install an isolated power supply on the power socket.

Do you have a top-of-the-box at home?If there is, then you dial off the wired antenna and it will be gone, so you can ask the TV station to add an isolator to you.

Another: the volume of the set-top box should be increased, and the volume of the TV should be turned down.

Dear Hisense users, hello!

Don't know the specific model of your TV?What signal source is used?If it is a wired set-top box, there can be interference between the signal ground and the TV's ground, you can install a wired isolator, or check the grounding situation.

If you need help,Please call Hisense national service**,Hisense customer service staff will arrange service for you。

The reasons why the current sound of the LCD TV is particularly large are as follows:

1. It may be that the power supply is bad.

2. It may be caused by leakage of the motherboard.

3. It may be that the audio circuit is not well filtered, and the corresponding flow coil and filter capacitor can be replaced.

4. It may be caused by the short circuit or breakdown of the additional resistance of the horn series in series, and it should be replaced.

5. It may be generated by some external devices, reconnect or dial it down.

6. It may be a problem with the audio rectifier circuit.

This depends on what the sound is, generally speaking, there are the following two situations:

First, the sound of cannon fighting:

1. There is a discharge phenomenon (cleaning and drying) on the machine board.

2. Tail plug leakage (cleaning, drying).

3. The paper tray of the receiver is damaged or of poor quality.

4. Short circuit and leakage of flexible cable.

5. False welding and leakage of audio peripheral components.

Second, the sound of communication:

1. Leakage (rewelding) at both poles of the microphone.

2. Caused by replacing the poor quality casing (replacing the *** casing, or shielding with tin foil, but pay attention to it).

3. The transmitting power is too strong (add resistance to the transmission signal sampling line to reduce the power amplifier power).

Let's watch the TV speaker touch the magnet.