Ian,

That's the site I posted about 5 years ago on the PSR-tutorial site. I don't think it has been updated since then. Their PSR series doesn't go beyond the 740, which as you know, is an antique.

Gary
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)