ORIGINAL: BobMaine
The DX7 manual leaves lots to be desired. If you want to do more programming than just the basic stuff you won't find it in this manual. Lots of criticism of the manual in the DX7 forum on RCU -- take a look.
Just curious, what programming are you finding difficult with the DX7?
I've found the DX7 manual to be as good or better than the 9C manual, which isn't saying much.