开云体育

I doubt that it could be anything in the pre-set panel, anything there could be expected to affect both drawbar presets and the presets. Worth checking that there are no stray wires shorting between the bus-bars, although if there were any, I would expect the symptom to be a constant "beehiving" type noise, rather like you get when you press two presets down. The only wiring that is unique to the B preset is the key contacts under the B key, and the wiring from those contacts to the drawbars. From your description, I can't deduce any scenario that would explain the symptoms. If this were on the upper manual, I'd look at the percussion switches and wiring as well, they are particular to the upper manual B preset, but as this fault is on the lower manual...

Thanks Chris. ?For what it's worth, I shifted the busbars for the lower manual after discovering this issue and that did not change anything.

For my own peace of mind, I went back and checked the A# as well as the other pre-sets on the lower manual. ?They were not affected, nor were the other drawbars on B. ?Everything I described in my previous post is accurate.

Could there be an issue with the pre-set panel in the back of the organ? ?Thanks again!

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