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Patches and discussion for Ensoniq VFX family

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Message

Re: SD-1 EPROM Upgrade Questions

2011-04-26 by jondl_2000

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" <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
>

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