The 6522 should be generally available, just about anywhere via eBay. In
fact, the last batch I bought were Brazilian-made Rockwell chips, IIRC.
It's the 6526 that's the bugger. Even in the USA, we have to salvage them
from other C-64 machines, etc. eBay sellers often ask
$25/each - you're
better off finding a donor C-64! They are easy to blow-out,
too. Very
commonly they take a fatal blow when plugging a joystick, etc. They should
have used buffers between the game ports and the ICs.
Best,
Bill
On Fri, Jan 9, 2015 at 8:43 PM, Alexandre Souza <
alexandre.tabajara at gmail.com> wrote:
Thanks Bill! The broken SX-64 was a loooong time ago,
it wasn't even mine
at that time (now it is! :oD). I don't know what happen, but ROM parts are
more common to fail than EPROMs, this is well known. I don't remember
exactely what happened, but was something around what you related, Screen
comes up with some garbage but no cursor/welcome. 6522 are a pain in the
back in Brazil, I have lots of friends with C64s without a good 6522 :( Oh
my :(
On Sat, Jan 10, 2015 at 12:38 AM, drlegendre . <drlegendre at gmail.com>
wrote:
Hi Alex,
Nice site, cool toys!
I don't read Portuguese, but it looks like you +also+ had an SX-64 with a
bad kernal ROM? What's the deal with those, did they use some kind of
inferior part for the SX-64 ROM? It seems like they have a habit of just
going "poof" one day.
controllers
What was your symptom - screen comes up, with the correct color & border
-
but no cursor or welcome message? That's what
mine did. I also had one of
the two 6522 CIAs go out, which made the floppy unable to read discs.
I've
heard that's also a common point of failure
in the SX-64.
-Bill
On Fri, Jan 9, 2015 at 6:31 PM, Alexandre Souza <
alexandre.tabajara at gmail.com> wrote:
>
> Site is back! :)
>
> ---
> Enviado do meu Apple IIGS (pq eu sou chique)
> Meu site:
http://www.tabalabs.com.br
> Meu blog:
http://tabajara-labs.blogspot.com
>
>
>
>
> ----- Original Message ----- From: "Sean Caron" <scaron at
umich.edu>
> To: "General Discussion: On-Topic and Off-Topic Posts" <
> cctalk at classiccmp.org>; "Sean Caron" <scaron at umich.edu>
> Sent: Friday, January 09, 2015 7:29 PM
> Subject: Re: Brazilian computer dissected: CP200
>
>
> LOL! I guess that will help tick up the pageview count :O
>>
>> Best,
>>
>> Sean
>>
>>
>> On Fri, Jan 9, 2015 at 4:08 PM, Alexandre Souza <
>> alexandre.tabajara at gmail.com> wrote:
>>
>>
>>> Oh my :(
>>>
>>> My site appeared into a national magazine today, so bandwidth must
>>> have
>>> exceeded :(
>>>
>>> Thanks for telling me!
>>>
>>> ---
>>> Enviado do meu Apple IIGS (pq eu sou chique)
>>> Meu site:
http://www.tabalabs.com.br
>>> Meu blog:
http://tabajara-labs.blogspot.com
>>>
>>>
>>>
>>>
>>> ----- Original Message ----- From: "Francois Dion" <
>>> francois.dion at gmail.com>
>>> To: "General Discussion: On-Topic and Off-Topic Posts"
>>> <cctalk at classiccmp.org>
>>> Sent: Friday, January 09, 2015 7:01 PM
>>> Subject: Re: Brazilian computer dissected: CP200
>>>
>>>
>>>
>>> Ooops!
www.tabalabs.com.br ->
>>>
>>>>
http://www.hostinger.com.br/cpu_exceeded?tabalabs.com.br
>>>>
>>>> que coisa...
>>>>
>>>> Francois
>>>> --
>>>>
http://raspberry-python.blogspot.com -
http://pyptug.org - @f_dion
>>>>
>>>> On Fri, Jan 9, 2015 at 10:31 AM, Alexandre Souza <
>>>> alexandre.tabajara at gmail.com> wrote:
>>>>
>>>> So bad it is so seldomly read, Sean. I hope I can get more
pageviews.
>>>> It
>>>>
>>>>> is
>>>>> not for the money, but I hope all the work I have in photographing,
>>>>> creating the pages, etc...is useful for someone.
>>>>>
>>>>> On Fri, Jan 9, 2015 at 1:58 PM, Sean Caron <scaron at
umich.edu>
wrote:
>>>>>
>>>>> > Cool! I really enjoy your site, even if I can't read
Portuguese
:)
>>> Good
>>> > pics.
>>> >
>>> > Best,
>>> >
>>> > Sean
>>> >
>>> >
>>> > On Thu, Jan 8, 2015 at 9:47 PM, Alexandre Souza <
>>> > alexandre.tabajara at gmail.com> wrote:
>>> >
>>> > > Just in case someone is curious, there is another brazilian >
>
>>> computer
>>> > > dissected, the CP200 (ZX81 clone) from Prologica
>>> > >
>>> > >
www.tabalabs.com.br
>>> > >
>>> > > Greetings from Brazil!
>>> > > Alexandre
>>> > >
>>> >
>>>
>>>
>>>
>