Principle of Potentiometer Replacement

After the potentiometer is used for a long time, it may malfunction. You need to replace the new potentiometer. Do you know how to choose the right potentiometer to replace the original potentiometer? Generally speaking, the replacement of the potentiometer should follow The following principles:

①The volume and shape of the potentiometer should be similar to the original potentiometer

②The resistance value can be changed by 20% to 30%. For example, the original potentiometer is 470kQ, it can be replaced by 510k,0;

③The rated power of the substitute potentiometer is generally not less than the original potentiometer. If the potentiometer is used in the signal control circuit (such as volume and tone potentiometer), the wattage of the potentiometer can be ignored;

④ If the length of the shaft and the shaft end face need to be processed (such as file oblique or sawed, etc.), it should be carried out before installation, and it must not be processed after installation on the whole machine to avoid damage to the machine parts.