It's not just Yamaha...
the tech trend -ALL over - is to make user guides "reference manuals" - where they tell you what can be done, but not how to do it.

About the only user manula I've seen lately that were 'friendly' are DVD owner manuals - designed for idiots who can't even program a remote, with step by step instructions on how to do X or Y !!.

I guess Yamaha and others do not count us in that category eh ??

Regards,
Steve