Currently Being ModeratedMay 22, 2012 11:05 AM (in response to StanLara)Re: line6 lowdown ld300pro bass amp
First step is to quickly find out if this is potentiometer "jitter" related or if it's further on the mainboard.
The way to test for pot jitter is to power off the amp, then turn ALL knobs to either absolute left or absolute right-most positions, physically on the panel. The idea here is that when the knobs are parked at the extremes, they are physically less subjected to vibration of the amp.
If you've done this, then gently "wake" the Channel Volume knob and the channels still appear to "switch by itself", the issue is deeper on the DSP mainboard and would definitely require a service technician to access the mainboard components for diagnosis and correction.
Currently Being ModeratedJun 1, 2012 9:48 PM (in response to Kneehow)Re: line6 lowdown ld300pro bass amp
I did what you said and it didn't do it. Its seems to do it when I am playing, I will go to adjust the volume and the channel will change and the volume will turn all the way down. I tried to reset to factory but all it did was make the "deep" light blink. Only able to get clean, r&b, brit, grind and synth to work. Rock does not work. I took it in to have it cleaned thinking it may be dust, as I have had it a few years now. Is there something else you suggest I do. Or is it just time to buy a new one? Thanks!