emulatorII-list

When I got my EII and the drives wouldn't kick into action, the
engineer I use tweaked some pots on the replacement PSU he fitted anhd
the drives came to life immediately. 

Sorry that I can't advise any more detailed than this. The engineer
was James Walker at Synth Repair Services in UK.    

http://www.synthrepairservices.com/

Good luck. 


--- In emulatorII-list@yahoogroups.com, "hexafuzz" <gclip@...> wrote:
>
> --- In emulatorII-list@yahoogroups.com, "George" <trickstar303@> wrote:
> >
> > I'm getting all kinds of erratic display readings upon freeze-up 
> > depending on the sound disks I insert.
> > 
> > Here are some goofy ones I just got:
> > 
> > Emulator 2***
> > ust a momen!t
> > 
> > 
> > another one was
> > 
> > Insert Diskette
> > !!!!!!!!!!!!!!!!!!!!!
> 
> Have you verified that the Power Supply is putting out the correct
> voltages, that the power connectors are intact, clean, making good
> contact, and that the correct voltages remain stable during and after
> warm-up? 
> 
> I have seen many unexplained errors and just plain wonky behavior
> (including display problems as above) traceable to faulty power. Your
> E-II power supply is 20+ years old now; always make sure the power is
> clean, correct, and consistent before chasing down other causes.
> 
> > I have the boot chip v.2.1 installed. At least the sticker on the
> > chip says so. The sounddisks that came with the EII were made with
> > different OS versions as stated on the disk labels. Some are in V1.8
> > some in various versions of 2.x and then there is one disk that says
> > EMU Software V.3.0. I tried to put all these disks in but the 
> > machine continues to freeze up.
> 
> > Why does my EII ask for Software 3.1 when the boot rom I have
> > installed is V2.1? And why is it freezing up now? Can anyone shed
> > light on this?
> 
> A single or dual floppy E-II loads its OS from diskette upon first
> boot, not from ROM. Every performance disk also contains the OS. A
> disk with the *same* OS version as was booted needs to remain in the
> drive as the machine requires constant access to the OS depending on
> called function. For Example: If you boot (sucessfully) using a
> version 3.0 diskette, you will experience a overlay error if you
> replace the 3.0 diskette with another diskette with a different
> version (ie: 1.8 or 2.x). The solution is to update all your diskettes
> to the latest OS version available -or- always leave the version you
> booted with in the top drive. Hope this makes sense or helps you
somehow.
> 
> See above comment on power supply verification before going further on
> the freezing problem.
> 
> Good Luck.
>