Is there a digitalized manual for the Casiotone CT-810, and where could I find it?

Go there:
https://www.manualslib.com/manual/993054/Casio-Casiotone-Ct-360.html

Wasn't able to find any free ones but did find this site that has the manual for $4.99;
https://www.user-manuals.com/advanced_search_result.php?keywords=Casio+CT-380

try this... Casio Casiotone CT 360 Manuals ..or this... Casio CT 360 keyboard manual Google Search

I haven't been able to find documentation to be sure if the CT-630 has MIDI ports on it (my guess is no, but please check). If it does, you can get something like the Yamaha UX16 USB MIDI Interface cable to connect the keyboard to a PC.
If not, sorry, it seems the only thing you could do is record the audio output.

https://www.manualslib.com/manual/993054/Casio-Casiotone-Ct-360.html

Try this

Request manual directly from casiotone

Try this site. It has most of the old Casio manuals for download. http://generror.wordpress.com/2010/07/04/casio-keyboard-manuals/

Hi, I picked up an old Casiotone CT-607 today, found it at a old second hand shop, it's probably wrecked but does anyone know what to do to try and get it going again?

Hi - look in back or under keyboard for power specs.Then go to Guitar Center and the right adapter. GuitarCenter.com has casio power adapters.

HI,
YOU CAN GET IT FROM HERE http://www.manualsnguides.com/search.php?cmarque=CASIO&modele=CASIOTONE%20701

thank you,
vijay (vote for me)