Casio RZ-1 service manual here!

[gmeredith]

Everyone bow down and worship at its 8-bit feet - I have the elusive RZ-1 service manual!!

I bought it as paper copy but i've scanned it to pdf and I'm giving it to you guys for free  

BUT...... in return, you have to download at least ONE SONG from my band's website (free download)  

http://www.warningwillrobinson.com.au/index_files/LeisurethroughTechnology.htm


You can download the RZ-1 service manual from my band's website:

http://www.warningwillrobinson.com.au/index_files/InstrumentManuals.htm

If you click on the "View all manuals here" heading up the top of the page it will take you to the whole goldmine of my manuals, you can find it there. Take note that there is also 11 separate schematic pages that are a part of it but separate to it - in jpg format, so they also go with the main manual, make sure you get them, too.

I've also put it up on the Yahoo Casio Collectors group, but you'll have to join the group to access the files section.

http://au.groups.yahoo.com/group/casiocollectors/

Enjoy!

Cheers, Graham

[Circuitbenders]

BEHOLD! Its the holy grail of circuit bending!

If i'm ever in a position to award medals for services to circuitbending way beyond the call of duty, i'll certainly be recommending you 

[gmeredith]

You're most welcome!

We should do some dissecting of it and post some findings about it.

First off: on p22 of the main manual:

There is a LPF filter on the sampling input as an anti-aliasing filter. This can be bypassed, as has been done on the Casio SK5 and 8 to improve sampling quality somewhat (but with aliasing noise introduced - depending on what you sample, may not be a problem, or even desirable). A simple bypass switch setup should allow a choice of on or off at will.
There shoud similarly be some sort of filter on the audio output stages of both the sampling section and the ROM sound section - these could similarly be bypassed as per SK5/8 to give brighter sound - the sampling section outputs already have a simple tone control - these could be modified to give better frequency response.

Cheers, Graham