I had no luck finding a manual.
I did however receive another rc-1000 today which has its box and bits etc. I have scanned the manual for anyone else who might want it. Unfortunately there was nothing in there that I hadn't already figured out. No silencing of the sound kinda sucks. Maybe there is an option via PCs though. Incidentally, I haven't added the PC connection manual as it's huge, and I doubt many people would want to see that.
https://drive.google.com/open?id=0B57AN ... UUwMDFWMHc