Patches and discussion for Ensoniq VFX family

----- Original Message -----

From: jondl_2000

To: Ensoniq-VFX-SD@yahoogroups.com

Sent: Tuesday, April 26, 2011 5:30 PM

Subject: [Ensoniq-VFX-SD] Re: SD-1 EPROM Upgrade Questions

Richard,

Thanks for the follow-up.

I sent the email to the aol address listed on the installation instructions, not the route66studios emial address - my bad.

I've resent the email along with a related email on another matter regarding the order.

Thanks for your attention to this matter.

Jon

--- In Ensoniq-VFX-SD@yahoogroups.com, "Rish" wrote:
>
> Jon
> That does not sound like an EPROM issue but a bad display or diode on the PS, could be a bad set of EPROM's.
> I can always supply you with a second set of EPROM's but I have not received any such Email from you as you have stated here.
>
> Richard at Route 66
> ----- Original Message -----
> From: jondl_2000
> To: Ensoniq-VFX-SD@yahoogroups.com
> Sent: Tuesday, April 26, 2011 4:34 PM
> Subject: [Ensoniq-VFX-SD] SD-1 EPROM Upgrade Questions
>
>
>
> I've recently attempted the OS 4.1 EPROM upgrade to my SD-1 having purchased the chips and sequencer diskette from Rt 66 Studio.
>
> The upgrade was unsuccessful and the SD-1 would only boot to a partially illuminated display that would slowly fade to dark...
>
> I attempted to fallback to the previously installed EPROMs only to have the same issue following power on.
>
> Having searched this lists archives, I found this thread from sometime ago:
>
> http://launch.groups.yahoo.com/group/Ensoniq-VFX-SD/message/2581
>
> Since the description appeared to match the issue I'd encountered, I replaced both 2 Amp fuses (I have replacement 1.5 Amp fuses on order) and was able to restore the SD-1 using the previous EPROMs, but not the new EPROMs.
>
> I've double checked the provided installation instructions and feel certain I have the EPROMs installed correctly. I've posted a question to Route 66 Studios, but expect it may be some days before I receive a reply. When I have the new EPROMs installed and power on the unit - all I have is a dark display with no prompt to reinitialize the unit.
>
>; Does anybody have suggestions as to what else I might try to affect a successful upgrade?
>
> I'm hesitant to make further attempts without a plan of action as I'm concerned the pins on either set of EPROM's will wear unnecessarily from too many installations and removals.
>
> Thanks in advance for any guidance you may have to offer.
>
> Regards,
>
> Jon
>