A lot of people talk about the poor power supply of this amplifier, but that is not the real reason for random interrupting of sound or clipping. Many of them put stronger capacitors than 2200μF, trying to replace the transformer, ... but this is the most common problem with this model of amplifier.
Solution (one of):
If your female connector labeled "CD in" is good (like mine is) you can just replace it with a faulty "Emulated line out & headphones" connector because those faulty contacts are not used in place of the "CD in" connector.
