From: Raymond C. Bryan (raycomp_at_visi.com)
Date: 2004-01-11 06:17:14
Remember that that is 50hz so in the non-PAL C64 your clocks will be
wrong including the CIA timers which get their frequency from the
9VAC.
--Ray
>For anyone looking at replacing a C64 power supply with one from a PC have
>a look at this web page;
>
>http://www.volny.cz/dundera/stuff.html
>
>This is the IDE64 home page however they have a nice little DC to AC
>circuit so you can power your C64 from the one power source instead of
>having one for ac and one for dc.
>
>I haven't built it yet so I can't say anything about it's reliability or
>design.
>
>Mike
>
>
>
>On Sat, 10 Jan 2004 03:33:13 +0200, you wrote:
>
>>Hey Ryan,
>>
>>
>>sorry to hear about your problems with the PSU.
>>However, could you tell me more about this "Pinto" power supply?
>>How does it blow up your C-64, exactly? And, do you have pictures
>>of this PSU, so I can be sure which exactly you mean?
>>
>>I think it's simple to reverse engineer the PSU.
>>
>>
>>cheers
>>
>>mario
>>
>>
>>> -----Original Message-----
>>> From: owner-cbm-hackers@cling.gu.se
>>> [mailto:owner-cbm-hackers@cling.gu.se]On Behalf Of ext Ryan Underwood
>>> Sent: 10 January, 2004 02:35
>>> To: cbm-hackers@cling.gu.se
>>> Subject: C64 power supply replacement
>>>
>>>
>>>
>>> Hey,
>>>
>>> Well, I finally got around to building a S-Video cable for my
>>> C64 today.
>>> Fire up the C64, and a blank screen. Sigh. Cable must be
>>> bad, so check
>>> all connections on cable, nope, cable is good. Check C64
>>> power supply.
>>> 5V -> 5.15V, 9VAC -> 10VAC, seems almost normal, and... whups, wait a
>>> second, now there's nothing on the 9VAC. Wait a little while, unplug,
>>> plug back in, still no 9VAC. Looks like it just gave up the ghost.
>>>
>>> This is one of the "Pinto" supplies, you know, the ones that were made
>>> to eventually blow up your C64 when they failed, and they
>>> were sealed in
>>> lots of epoxy so you couldn't even fix it if you wanted to; I found
>>> that out the hard way, after spending an hour with screwdriver and
>>> hammer, busting it open in complete confidence that I would be able to
>>> fix whatever was plaguing the 9VAC output.
>>>
>>> Hopefully my C64 survived, but now I need a new power supply. Anyone
>>> have a cheap circuit for one or a link? (google isn't being helpful
>>> today)
>>>
>>> thanks,
>>>
>>> --
>>> Ryan Underwood, <nemesis@icequake.net>
>>>
>>
>>
>> Message was sent through the cbm-hackers mailing list
>
>
>
> Message was sent through the cbm-hackers mailing list
--
---------------------------------------------------------------
|Raymond C. Bryan 651-642-9890 vox | The battle is sometimes |
|Raymond Computer 651-642-9891 fax | to the small for
|
|795 Raymond Ave -email: raycomp | the bigger they are |
|St Paul MN 55114 @visi.com | the harder they fall. |
|USA Amiga - Commodore | -- James Thurber -- |
http://www.raymondcomputer.com
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