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Perf EPROMS for sale?

Perf EPROMS for sale?

2015-05-04 by kloopy@...

Hi team,

Does anyone have Drummer, Strummer, Cyclone or other Perf EPROM to sell or burn and send to London UK please? I am reviving one Cyclone that came without EPROM.

Thanks and hope this finds me a source that will help me bring the machine back to life :),

K

Re: Perf EPROMS for sale?

2015-05-05 by richtrix@...

Send snugglepussyisme a message through this forum. He made some for me.

Sincerely,
Rich Clarke

Re: Perf EPROMS for sale?

2015-05-09 by kloopy@...

Surprisingly, a guy, here from London contacted me and sent me one test Drummer chip. The chip works great in my Cyclone though this one I'm trying to repair is still playing up.
Anyone has the schematic for these little beasts?
Thanks!
K

Re: Perf EPROMS for sale?

2015-05-20 by kloopy@...

Hi all,
I have an update on this. It turned out that microcontroller 80C31 was guilty for machine freezing up soon after powering.
You can get this chip on Ebay for £3 so I replaced it and it all works great.
Hope this may be useful to someone with same issues.

Re: Perf EPROMS for sale?

2015-05-20 by giramsey@...

Hi, do you have a link to this chip, there are a few that come up if you search microcontroller 80C31 on eBay. My cyclone every now and then when turned on the whole system is garbled and have to do a reset, which is annoying as I loose all my custom presets. Is this the same issue you had?

Thanks

Re: Perf EPROMS for sale?

2015-05-20 by youthvulture@...

Before you go through too much hassle, I would make certain that the power supply you're using is spitting out a clean 9 volts. When I first got my Strummer I was having a lot of issues with freezing and random restarting. I measured the stock power supply to find that it was providing close to 14 volts! I swapped for a regulated 9v wallwart and all my problems disappeared. It might be worth a shot to try that first.

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