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Starting a dedicated thread on this topic since it looks like @spawnofthesith2 has a similar issue as my V:90 currently does.
FWIW this thread topic started here
https://boogieforum.com/threads/mesa-boogie-mark-v-35-footswitch-schematic-pinout.87864/post-544727
The basic problem, upon a channel switch Ch 1 -> Ch2, intermittently the volume will cut out. The channel led goes on and there is still sound but at a very low vol. You can hear an increasing cracking sound and then after a few seconds and it kicks in fully. The problem still occurs but much less often going from Ch 3 -> Ch 2. The FS and related external controls have been ruled out.
Searching the V forum for related issues... found this thread that points to sticky relays, which would make sense in this case.
https://boogieforum.com/threads/mark-v-clean-channel-cutting-out-help.85204/post-524138
Anyway. I'm just starting to dig into the relay controls and which ones are in play when switching. Would like to have an idea of what to poke around for when I open it up and start sniffing around. FWIW I've been deep into the V:90 before and it's a challenging packed beast for sure.
Of course anyone with direct experience troubleshooting Mesa relays or similar problems feel free to weigh in
FWIW this thread topic started here
https://boogieforum.com/threads/mesa-boogie-mark-v-35-footswitch-schematic-pinout.87864/post-544727
The basic problem, upon a channel switch Ch 1 -> Ch2, intermittently the volume will cut out. The channel led goes on and there is still sound but at a very low vol. You can hear an increasing cracking sound and then after a few seconds and it kicks in fully. The problem still occurs but much less often going from Ch 3 -> Ch 2. The FS and related external controls have been ruled out.
Searching the V forum for related issues... found this thread that points to sticky relays, which would make sense in this case.
https://boogieforum.com/threads/mark-v-clean-channel-cutting-out-help.85204/post-524138
Anyway. I'm just starting to dig into the relay controls and which ones are in play when switching. Would like to have an idea of what to poke around for when I open it up and start sniffing around. FWIW I've been deep into the V:90 before and it's a challenging packed beast for sure.
Of course anyone with direct experience troubleshooting Mesa relays or similar problems feel free to weigh in
