
AC
New member
I recently bought a second hand VH4, probably a 2009.
Last week I noticed that the midi-switching doesn't respond as it should anymore. I can go to channel 1 without a problem, but when I select one of the other 3 channels, it goes to that channel, but I can't change it to another one of those 3 channels.
Today, when I lit it up, I saw that one of the tube fault indicators was turned blue, under tube 3.
Now, I've searched for the tube layout, if tube 3 would happen to have something to do with the midi-switching, but it's not in the manual (http://www.diezel.ch/en/products/pdf/vh ... nglish.pdf)
The manual also states that with a faulty tube, the led should be red, not blue. Did that change?
So...
Do I have 1 problem or 2?
Because my tube-tech is not midi-minded...
Last week I noticed that the midi-switching doesn't respond as it should anymore. I can go to channel 1 without a problem, but when I select one of the other 3 channels, it goes to that channel, but I can't change it to another one of those 3 channels.
Today, when I lit it up, I saw that one of the tube fault indicators was turned blue, under tube 3.
Now, I've searched for the tube layout, if tube 3 would happen to have something to do with the midi-switching, but it's not in the manual (http://www.diezel.ch/en/products/pdf/vh ... nglish.pdf)
The manual also states that with a faulty tube, the led should be red, not blue. Did that change?
So...
Do I have 1 problem or 2?
Because my tube-tech is not midi-minded...