Gray Color Anodized Aluminum Metal Potentiometer usb amp Volume Control Knob

Potentiometer carbon film wear serious, resulting in poor contact, can be disassembled, with a cotton ball with a little anhydrous alcohol to clean the potentiometer carbon film.

Then drop some lubricant, it is best to adjust the position of the contact piece, change the original contact position, so that you can repair the use of

You can also replace the potentiometer with the same resistance value.

Perhaps the volume adjustment potentiometer is worn out, take down the same as the original to buy a back to install the solution, a good manual can try to use fine tweezers, alcohol, cotton balls to repair.

Radio volume adjustment using a potentiometer, which is a variable resistor. Its working principle is: there is a moving piece of film sliding on the resistor, change the resistance, thereby adjusting the volume. From the working principle can be seen, over time, the resistor film will certainly be rubbed bad; in addition, in order to reduce costs, many volume potentiometers use lower quality grade devices, the potentiometer resistance film is carbon film, carbon film is easily damaged. In addition, the structure of this potentiometer is relatively simple, the outside dust is easy to fall on the resistive film, resistive film dirty, in the adjustment of the volume, you will hear the bared sound.

Try to adjust the volume as little as possible; pay attention to the use of the radio in a relatively clean environment; pay attention to the potentiometer maintenance, as said upstairs, with anhydrous alcohol swabs to wipe the resistor film; switch to a high-grade (preferably sealed, metal film) volume adjustment potentiometer

What is the reason why the volume can not be adjusted on the car?

The volume adjustment button on the central control can not adjust the volume size, should be damaged or poor contact caused by the button.

When the volume control button on the center control can not be adjusted, we can try to use the button on the steering wheel to adjust. Generally speaking, if the button on the steering wheel can be adjusted, it proves that it is not a problem of the vehicle system. Just repair it by replacing the button or connector.

Basically, there is a volume adjustment external volume control knob on the dvd all-in-one of the car, and this knob is also a knob that we use quite a lot. Some cars also have buttons on the multifunction steering wheel to adjust the volume. If the volume knob does not work, you can use the buttons on the multifunction steering wheel to adjust the volume.

These dvd players are electronic products, some function buttons or 3.5 mm inline volume control knob in the long-term use of failure is normal. If you want the volume adjustment stereo volume control knob to be completely good, car enthusiasts need to go to professional institutions to repair. If the repair is not good, you may need to replace the dvd all-in-one.

How to adjust the car radio signal?

• First of all, dismantle the reading light on the roof, find the radio antenna nut inside, and remove it, but the connector connected to the central control side is not necessary to remove, only for the roof antenna base construction.

• Then put the 10# nut directly over the self-purchased (super five oxygen-free copper) network cable, screwed to the antenna base connector location.

• Then after the connection, the network cable will be placed flat on the top of the car window and perpendicular to the radio antenna. But be careful not to bundle with other energized wires, or there may be some safety hazards.

• Finally, the original components will be installed back on the great success.

Summary

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