[Coco] Back to the COCO

[Brian Blake]

Bill,

I'm not sure I've ever seen a buffered 'y' cable before - it would only 
buffer the device being plugged into the CoCo anyhow. The best solution 
to protect the CoCo, IMHO, would be to install the Cloud9 Protector - 
CPU replacement board that has buffering IC's in place already.


On 1/4/2017 10:35 AM, Bill Gunshannon wrote:
> Funny you should mention that.  After seeing the comment about the COCO3 not having the 12v
> required by the old floppy controller I got to wondering if it might not be better just running them
> off of wall warts anyway.
>
> If you could, send me a private email with your real mail address and I will see if I can dig up
> boxes. (won't fit in even a large flat rate box! :-( )  Feel free to pull out any chips you suspect
> and put in sockets.  I will gladly pay for the repairs as long as it doesn't end out exceeding
> the actual cost of a new one.  :-)
>
> And now another question for you or any of the other serious COCO hardware guys.
> The MPI apparently has no more buffering than the cartridge port itself.  The Glenside
> IDE has two open ports but also has no form of buffering either.  Just how hard would
> it be to make something like the infamous Y-cable on a circuit board only with buffering
> to protect the COCO from damage?  Getting PC boards is easy anymore with sites like
> OSK (I have a handful of the cartridge boards and that is how I my Drivewire).  Is it
> reasonable?
>
> bill
> ________________________________________
> From: Coco [coco-bounces at maltedmedia.com] on behalf of camillus gmail [camillus.b.58 at gmail.com]
> Sent: Wednesday, January 4, 2017 10:00 AM
> To: Bill via Coco
> Subject: Re: [Coco] Back to the COCO
>
> Hi, Bill.
>
> That sounds like a plan, and you may even take out the transformer of the broken one too. I power my coco's with a wall adapter, so I do not need the transformer.
>
> I do need to tell you that the only way to tell if the cpu is dead is to take it out and replace it with a known good one. The fact that most of them are soldered directly to the board and removing them without harm is practically zero. I do have a couple of 6309 which are pin compatible and function the same. Those cpu's goes around for 8 to 12 $.
>
> If the GIME is shot, then that is an other animal to slaughter. Those can only be replaced by existing chips from coco3's that are broke but still have a good GIME.
>
> The pia's are still to find on the net.
>
> So lets hope it is just a minor problem.
>
> cb
>
> On 1/4/2017 8:48:11 AM, Bill Gunshannon <bill.gunshannon at hotmail.com> wrote:
> On 1/3/17 10:40 PM, camillus gmail wrote:
>> HI Bill.
>>
>> I would love to look at them, the only cost would be the shipping to indiana.
>>
>> I have two coco3 working, so I can swap out part to test.
>>
>> This is my hobby and I do not charge for this.
>>
>> Unless of course you consider to let me keep one of the coco's for the keyboard and the case?
>>
>> Let me know ho this sound for you
> OK. let's try this....
>
> How about if I send you one complete broken COCO3 that would be yours
> to keep and include in the package two additional broken COCO3 circuit
> boards for repair (assuming reasonable in both cost and needed work)
> and return? Not shipping the two additional cases (and the
> transformer) would reduce the cost. Doable?
>
> bill
>
>
>
>
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