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Author Topic: Commodore 65 electrical scheme  (Read 9766 times)

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Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #14 from previous page: July 31, 2010, 10:06:35 AM »
Hi to all. I'm trying to add as many informations as possible about C65 on my website. It may be useful for all, i think. If anyone wants contribute is welcome. Any informations you send will be add on http://www.retrocommodore.com with senders name of course.

Thanks, Carlo
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #15 on: August 01, 2010, 04:39:19 PM »
No answer? :)
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #16 on: August 08, 2010, 07:59:08 AM »
No answers? :)
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #17 on: August 08, 2010, 12:55:31 PM »
Also I i'm trying to collect more informations as possible about this machine. Commodore 65 was intended as C64's successor. It will be launched on market in 1991 but original project was closed cause too expensive and lacking of funds. It was an 8-bit computer with a greater graphic capability respect of C64 (video chip was VIC-III instead of C64 VIC-II). More colours, more graphic modes, CPU with more Mhz (3.54 Mhz). A very nice integrated floppies reader (3 and 1/2) and an extended keyboard completed this little jewel. I think the only wrong thing was that this pc was too late with times... infact in 1991 there were already pure 16-bit machines. Ah, its software must be retrocompatible with C64 software: that was a really good thing. If anyone has material and information about this topic, please contact me :) Thanks

Carlo - http://www.retrocommodore.com
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #18 on: August 23, 2010, 06:12:40 AM »
Dear Friends,

my board is quite ready to "come to life". I'm searching the last component (a Kyocera quartz 28.75 Mhz) and i have found a complete Commodore 65 power supply :)

Stay tuned......

Have a nice day, Carlo
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #19 on: August 23, 2010, 11:56:24 AM »
Thanks Guys for your interest.

I tried. But nobody helped me in my project. Unfortunately I found a lot of difficulties not only in finding the  missing pieces to my tab incomplete but also who has a full Commodore 65  is always reluctant to talk about and share what they have. In fact I  hope to resurrect my card but I still need a Commodore 65 keyboard to  interact with the card and a suitable floppy 3 and 1 / 2 which  powered the C65 machine as it was designed. Maybe you could produce a clone C65  cheap !!!!!

All the best

Carlo
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #20 on: August 23, 2010, 09:51:07 PM »
Now http://www.retrocommodore.com is available even in english :) a big step forward...... ;)

Thanks, Carlo - http://www.retrocommodore.com
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #21 on: August 26, 2010, 10:09:18 PM »
Quartz found. Let's see if C65 turn on.
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #22 on: September 06, 2010, 09:31:25 PM »
Hi Guys,

i'm near to turn on. I have only to place the correct ROM. ROM is the only missing chip on my board (even quartz is ok).

Let's see.... and hope :)

Thanks for following :)

Take care

Carlo
http://www.retrocommodore.com
http://www.ipertermiaroma.it
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #23 on: January 31, 2011, 09:18:14 PM »
Hi Guys,
 
finally i have all components for C65 board. Unfortunately it doesn't power on. Signals (seen with oscilloscope) are all ok... except for CSG 4510.. it seems dead. I think 4510 chip is broken. Let's see. If anyone has spare parts for Commodore 65, please, contact me.
 
Thanks, Carlo
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #24 on: January 31, 2011, 09:21:10 PM »
Board video at this address: http://www.youtube.com/watch?v=Shbp57ePTFU
 

Offline XenobioticalTopic starter

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Re: Commodore 65 electrical scheme
« Reply #25 on: February 02, 2011, 07:18:28 PM »
Dear Friends,
 
i'm now sure that my only problem in CSG 4510 (Victor CPU). All other components are ok.
 
Take care
 
Carlo