Bought off ebay and although it powers up and amplifies fine there is no control over volume and output is at full at any setting of the volume dial.


I've opened it up and there is no sign of any problem at least visually. No scorching, no leaking or bulging caps, all wiring is intact and connected firmly, there are three internal glass fuses which are all clearly intact. Anyone have any idea what the problem might be? I think it might be quite a simple fix as the thing does work there's just no control over levels.

It was advertised as working fine but as it was only fifty quid I can't be arsed to send it back.