Jv1080 volume issue

[Wayne]

Hi all

I have a JV1080 and wondered if the volume command is differant to my Jv1010, xv2020, Fantom and Sonic Cell.

My Fender Sg1 will mute the sound when pickup only selected except for the Jv1080. I have done a factory reset, swaped leads ect all to no avail

I have even pigi backed the lot with midi through with the JV1080 in the middle and it's just the JV1080 won't mute. This way rules out leads or signal as the unit either side mutes from the SG1 switch.

Dose any one have any suggestions to try. From what I can see everything ells works on the JV1080.

Thanks Wayne