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Some friends reported that the amplifier used has problems with adjustment noise, adjustment failure and imbalance of volume channels. Is there a problem with the potentiometer that caused these problems? How to repair it? Today I will tell you how to deal with these faults. The use of potentiometers is generally widespread. However, most of the personnel reported that they did not know how to repair the broken symptoms of the power amplifier potentiometer, such as the noise in the use of the potentiometer and the failure in the adjustment. If you are not a technician, it is normal for you not to know how to repair it. I have also told you about the common problems of installing the potentiometer before, so I will explain to you how to repair the broken symptoms of the power amplifier potentiometer. Repair method for adjusting noise of audio potentiometer of power amplifier Generally, if the power amplifier potentiometer generates noise during adjustment, it may be caused by the poor contact of internal components due to the excessive friction dust or dust entering, which is the noise generated when the potentiometer is adjusted. For the repair method, first disassemble the potentiometer, clean the dust inside with alcohol, and then check whether the elastic force between the moving piece and the fixed piece is large enough. If not, it will also cause poor contact. It is suggested that some lubricating oil can be added to ensure good contact with sufficient elasticity, and reduce friction in the use of potentiometer, which is conducive to the maintenance of components. Repair method for regulating failure of power amplifier potentiometer In daily use, the power amplifier potentiometer often fails in volume adjustment, such as the sound is too low or too loud, and can not be turned off. For this kind of fault treatment, it is generally possible that the internal shaft of the potentiometer is damaged due to frequent use, as long as the shaft is replaced. However, there is another possibility that the installation may not be firm, resulting in poor contact of some internal components of the potentiometer, and may also cause failure in the adjustment of the potentiometer. Troubleshooting of unbalanced volume channel of power amplifier potentiometer With regard to the imbalance between the left and right channels of the volume on the power amplifier equipment, it is generally due to the imbalance between the left and right channels caused by the excessive wear of the potentiometer. Therefore, the repair method is inconvenient and can only be solved by replacing the potentiometer. If it is used for a long time, it will also lead to aging and deterioration of some components of the potentiometer, resulting in a great potential safety hazard in the use of the potentiometer. It should be noted that during the use of potentiometers, do not replace potentiometers with different specifications casually, because the resistance values of potentiometers with different specifications are different. If not, it will lead to the incompatibility between the potentiometer and the equipment and cause damage.