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I have a Line 6 Flextone III XL. I plugged in my guitar and the sound cuts in and out. It fades in and out. I checked the cable and try using another cable, samething. If I play with the cable by moving it, I get a lot of static noise around

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If the sound "fades" in and out that implies a SLOW change in volume.

If that is what you have, it is likely that there is a problem with the power input or power supply as these are the only thing that would have a time constant to react SLOWLY. Fortunately, this area is one of the easier ones to find and fix.

Posted on Dec 08, 2009


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If your guitar is not connected and the cable alone causes the oscillation, I would certainly question the QUALITY of that cable.

Poorly sheilded cables can pick up ground loops.

If you short the contacts of the cable at the guitar end and that stops the oscillation, I would try a higher quality instrument cable. MAKE SURE the cable you are using is an INSTRUMENT cable and not a SPEAKER cable which I can guarantee would cause the problem.

The Line 6 amps are NOT noted for reliability so I would NOT let that oscillating conditipon persist for any length of time.

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