Hello all, sorry for the necropost, but I can't seem to find decent answers anywhere. My JVM205H and HX effects just will not play nice, my suspicion is that my amp's MIDI processor is dead or dying, but Marshall has been far from helpful with any support.
I've followed this guide to the letter numerous times and I still cannot get my JVM to consistently save preset commands properly, let alone change channels in response to them. In the case of trying to program presets, the amp will frequently just sit and do nothing in response to being sent MIDI PC messages. The MIDI button just sits and blinks eternally, no matter how many messages I send from my HX Effects (or other MIDI controllers, for that sake).
In the rare case that it does act as if it's just accepted a PC message and saved the preset, it behaves as if it has set that to be the only message it can listen to. No previously saved presets can be recalled except the most recent one. And even simply getting the amp to switch back to the most recent preset is iffy, as I typically have to hit the button multiple times to get it to change.
Given all my cables, HX Effects, and other midi gear have passed muster by all working perfectly together and showing proper behavior via a midi listener on my PC, I'm fairly resigned to the issue being my JVM. Has anyone else had this level of annoyance with their HX-JVM combo?
And yes, I've reset both the amp and HX multiple times, reset the JVM listening channel default, and tried it both in snapshot and preset mode for switching.
