Where can I download a User Manual for a Casio BOSS SF 4600?

Casio Japan has published some of their SF Digital Diary manuals online at http://world.casio.com/sf/download/en/manual/ .

You can also try the Casio support web sites for other countries, as they sometimes keep manuals around that Casio Japan has deleted. You may have to look around the site a little, as sometimes the technical support pages are not linked to the public pages. For example see: http://www.casionz.co.nz/Site/Pronto/Files/user_manuals/sf4000%20USER%20MANUAl.pdf (substituting some other model numbers like SF4600B also works with this site).

http://www.usersmanualguide.com/casio/pocket_viewers has manuals posted for many old and new Casio Digital Diary models (thanks to Matt W. Ammons for the link), but one of the sites they link to at Casio has gone offline, so some of the links don't work.

IMSL Software has created downloadable generic user manual for all Casio diary models. This brief manual attempts to cover all models and major features in one document, so it doesn't go into a lot of step-by-step detail, but it does cover all the basics for all common models. The manual is a Word document in Zip-compressed format, so you must have an unzip utility like WinZip installed to open it.

To order a new original manual from Casio in the USA or Canada for any Digital Diary model, try the contact numbers listed immediately above under Casio Contacts.

(the web site structure changes too frequently to link directly to individual pages - select Support for technical support, or select Casio World to find the rep nearest to you)

Casio actively removes information on any products that they are not currently shipping, so don't expect to find much support for Digital Diaries on their web site. You might find more on some of the International sites like Casio UK.

Casio USA Technical Support
800-962-2746
or
800-661-2274 Casio USA Customer Service
570 Mt. Pleasant Ave
P.O. Box 7000, Dover, NJ 07801

973-442-5707

800-428-7267 (Howard Sam -may be outdated)

Batteries
800-431-1332, 800-345-0537, 800-942-1944, 800-272-0272

Support 800-370-9083 ext. 242
Manuals: 800-661-2274 ext. 235