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PostPosted: Wed Oct 11, 2017 2:46 pm 
Donating Member
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Joined: Mon Oct 08, 2012 1:12 pm
Posts: 647
Location: Seattle
So my IIC+ can switch between clean and lead modes fine if I push/pull the lead drive knob.

I recently noticed that the foot switching DOES not work. Clean is there but on the lead mode it gets very quiet (you can hear something, but it's barely audible).

I've eliminated cables and foot switches as the problem. The tinfoil test works - anything plugged into the foot switch plug works fine, in that things appear to switch, lead mode just isn't working.

Like I said, lead mode works fine if I use the pull pot instead.

Any ideas on possible root cause? Trying to figure out if I should ship it back to Petaluma or see a local tech here, but if someone's seen this before and know's what the cause is, I'd love to hear your input.

Mark IIC+, III, V, Recto Reborn, TC-50
Sold: JP-2C, V25, Road King II, Tremoverb, Electra Dyne, ROV25

PostPosted: Thu Oct 12, 2017 4:21 am 
Mark IV
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Joined: Tue Jan 17, 2006 7:28 pm
Posts: 703
Location: Oslo, Norway
Almost certain that it's just a bad soldering, but I cannot tell for sure, any local tech will find out. But sending it to Petaluma will add a complete healthcheck by the MAN himself. Might cost you some extra but the amp will benefit for it.


Mark IIC+ SGX, DRGX x2
Mark III black dot DRGX
Mark V:25
Dual Rectifier Rev G, Recto preamp
Mesa amp switcher
4x12 Recto standard
1x12 Thiele cab.
Tons of Ibbies, what a habit.

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