SCI Prophet VS ROMs

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Rasputin
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SCI Prophet VS ROMs

Post by Rasputin » Thu Sep 29, 2016 2:17 pm

Some more rare goodies (hopefully it's cool to post these):


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Yekuku
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Re: SCI Prophet VS ROMs

Post by Yekuku » Thu Sep 29, 2016 8:26 pm

thank you very much for sharing these dumps ;)
Did you experience any eprom failures ? I am asking because recently I have noticed eprom failures in 2 early digital synths, in a DX7 and a S50.
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Rasputin
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Re: SCI Prophet VS ROMs

Post by Rasputin » Thu Sep 29, 2016 8:47 pm

I've never personally experienced any EPROM failures in audio equipment, so far as I am aware.

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Yekuku
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Re: SCI Prophet VS ROMs

Post by Yekuku » Thu Sep 29, 2016 9:40 pm

I have read that 20-30 years is the "normal" lifespan of the data in an EPROM , and i was wondering if anybody else had any similar experience, thats why I asked.
Anyways , many thanks for sharing these, if anybody else can contribute , maybe we can build a ROM database for early digital synths. A few months ago , I had uploaded the wavestations ROMs for a VSE member and i have a few more.
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synthRodriguez
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Re: SCI Prophet VS ROMs

Post by synthRodriguez » Thu Sep 29, 2016 10:09 pm

I don't recall having any go bad in synths, but I have had some go bad in early video arcade games from the late '70's and early '80's, the full-size ones, like you'd find in a bar.

One Tempest machine I still have had 3 or 4 go bad, so it can happen. At the time I didn't have an eraser or programmer so I never tried to reburn them.

These days, I tend to replace them automatically with CMOS if they're the old TTL style as they pull so much less power.

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Re: SCI Prophet VS ROMs

Post by Ashe37 » Fri Sep 30, 2016 5:55 pm

scottrod wrote:I don't recall having any go bad in synths, but I have had some go bad in early video arcade games from the late '70's and early '80's, the full-size ones, like you'd find in a bar.

One Tempest machine I still have had 3 or 4 go bad, so it can happen. At the time I didn't have an eraser or programmer so I never tried to reburn them.

These days, I tend to replace them automatically with CMOS if they're the old TTL style as they pull so much less power.
YOU HAVE A TEMPEST MACHINE????

*drives over to play*

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synthRodriguez
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Re: SCI Prophet VS ROMs

Post by synthRodriguez » Fri Sep 30, 2016 7:25 pm

Ashe37 wrote: YOU HAVE A TEMPEST MACHINE???? *drives over to play*
:lol: Yes it plays great, my favorite. I also have Joust, and a PacMan for the ladies.

Got rid of the Stargate and Asteroids and used the cash to help fund a Prophet 6.

Ashe37
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Re: SCI Prophet VS ROMs

Post by Ashe37 » Sat Oct 01, 2016 12:50 am

scottrod wrote:
Ashe37 wrote: YOU HAVE A TEMPEST MACHINE???? *drives over to play*
:lol: Yes it plays great, my favorite. I also have Joust, and a PacMan for the ladies.

Got rid of the Stargate and Asteroids and used the cash to help fund a Prophet 6.
Awesome, i want a star wars machine with the vector to raster converter someday.

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