emulatorII-list

Hi – and welcome J

 

The RAM expansion is what makes an EII an EII+.

It gives you two banks of 512kb sampling instead of one.

It does NOT allow you to sample a sample that spans the entire 1mb, but it
basically functions as two separate EII’s if you know what I mean.

 

You switch between the two banks by hitting 0 (zero) two times.

 

Kenneth Abildgaard

12bit.com

 

Fra: emulatorII-list@yahoogroups.com
[mailto:emulatorII-list@yahoogroups.com] På vegne af wintermute0815
Sendt: 25. januar 2008 11:21
Til: emulatorII-list@yahoogroups.com
Emne: [emulatorII-list] EII repair and mod

 

Hi,

I'm new to this group and I just bought a damaged EII on ebay.
I managed to fix it by cleaning the head of the 5.25" floppy with q-
tips and ethyl alcohol. Everything works fine now and I can work with 
the EII. What a great machine!

But I still have some(maybe) newbie questions.
While opening the EII for cleaning I discovered the "memory option 
board". I wonder what it does. Is it a RAM expansion to 1MB? And if so 
how do I access the second bank?

The main issue I have is that my EII only provides the RS232 interface.
Since I want to connect the EII to a Mac I need to fix that.
Does anyone out there have a PCB layout for modding the EII to accept 
RS422? A scan (top and buttom) of the adapter board would also be great!
It seems to be a very simple circuitry and I think its easy to built.

Thanks in advance!

wintermute

 



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