The volume control on my cheap Fusion head unit has gone rogue on me. The unit is adequate for my purposes and I don’t want to have to replace it. I am wondering if there is any relatively simple and straightforward way to fix it.
Like all modern controls, this one operates everything that is adjustable, like balance, bass and so forth. Press to select, then turn the knob. The knob turns forever in either direction.
The problem is that the level has started jumping around in a random fashion when adjusting. If you turn it up, it doesn’t go 1-2-3-4-5. Instead it may go 1-5-2-19-3-etc. It is almost impossible to adjust the volume up or down in a controlled fashion. Sometimes it is impossible to get it to go down at all. It will just keep jumping back and forth between two or three higher levels.
In the old days, volume was controlled by carbon potentiometers. These could develop bad spots that would produce effects similar to what I am experiencing. Could anything like this be going on with my volume control? Could this be a mechanical contact issue, or is it something in the electronics?
My head unit has a removable front panel, which conveniently also contains the volume control. Could this be fixable without removing the unit, or is the problem likely to lie deeper? Any tips would be much appreciated.