Casio FZ Samplers

Hi,

i want to upgrade my Hohner HS1 with the 4mb RAM upgrade and im wondering if anyone of you did this already? Maybe some illustrated Tutorial or something like that?

What type of LCD does the Casio use? Is there a way to use a LED replacement?

On Thu, 30 Nov 2016, tarkan.sahin78@... [Casio_FZ_Samplers] wrote:


> i want to upgrade my Hohner HS1 with the 4mb RAM upgrade and im 
> wondering if anyone of you did this already? Maybe some illustrated 
> Tutorial or something like that?


In case you're talking about this


 	http://buchty.net/casio/fz1-simm.html


you'd probably be the first. I never got any success feedback so far, 
which either means that noone really tried it or noone trying got it to 
work. (And since my own FZ-1 was FBR by "careful" movers about 15 years 
ago, I never tried it out myself, either.)


> What type of LCD does the Casio use? Is there a way to use a LED 
> replacement?


No. It's a custom LCD controller setup, see


 	http://buchty.net/casio/display.html


for an initial analysis of the protocol.


If that looks familiar to anyone, please let me know. I checked against 
a bunch of Hitachi controllers and it's seemingly its own kind (and 
recycled from the graphical Casio calculators which introduced this 
display setup).


If you want to hook up a contemporary LCD graphics controller, you would 
need to rewrite all LCD control routines from scratch (at least print, 
plot, cls, contrast setting) and get a proper address/data breakout (as 
the existing 6-bit LCD interface is most likely of no use), i.e. hook 
the solution into I/O address space. (I hope you enjoy 80186 assembly 
language :) )


Rainer

On Fri, 2 Dec 2016, Tarkan Sahin tarkan.sahin78@... [Casio_FZ_Samplers] wrote:


> Concerning the LCD, they guys in the Akai Forums did managed to make a 
> working LED Display for the mpc60 and the S3000 and MPC3000. Which is 
> also using a propietery Controller. So this should also be possible 
> for the FZ?


Of course it is possible. See my last mail.


Rainer