hello everyone, i just bought a sugden a21a from a local shop.it is for repair thats why i bought it at a low price.the amplifier is working but the problem is the balance control.when i move it rightwards, the volume on right speaker slightly increase.when i move on the left, the volume on left speaker stays the same but the woofers move forward and backward. even at 0 input, when i move the balance pot, the left speaker woofers move forward and backward with a little noise.i dont know if the balance pot is the original from the factory.all pots are cleaned with contact cleaner. any ideas? i will attach some pictures. first picture not mine, only for reference purposes.
