Hi, The problem is that the power supply in one of your racks is out of calibration or may even have a fault. Are you able to measure the power supply output voltages? A reasonable quality digital multimeter is required not a cheap analogue meter to set the supplies accurately. Let me know if you can do the measurement and adjustments/repairs and I'll send you the details on how to go about it. I'm in Portsmouth UK if you need some hands on help else you might have to pay a local techy to do the work. Hope this helps Tony --- In RolandSystem100m@yahoogroups.com, "rabbitfoot88" <rabbitfoot88@...> wrote: > > Excuse my lack of technical knowledge (musician rather than technician) but can anyone > explain to me why my oscillators track & tune nicely in one of my 191j's but not if I move > those modules to another 191j? > > In the second 191j as you change the footage on the oscillators it doesn't track equally up > the octaves (i.e. sounds out of tune). > > At first I thought the oscillators must need re-calibrating, but then I checked them by > moving them to the other cabinet an they work fine in that one...?? > > Unfortunately the cabinet where they track nicely in tune has an awful hum/buzz from the > power supply - hence my wanting to use the other one. >
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Re: Osc tuning & power supply..?
2008-05-17 by Tony Steventon
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