[Coco] Need help repairing a CoCo 2

[Bill Pierce]

Nick, I bought a 16k standard "Color BASIC" Coco 2 about a year after the 64k Coco 2 came out (manager's special $69). I think they were getting rid of some surplus parts. It was of the "8 chip upgrade" variety. The chips had to be desoldered and replaced, so I never did upgrade it because I didn't have the skills. I soon after got a 64k Coco 2.
 

Bill Pierce
"Today is a good day... I woke up" - Ritchie Havens
 

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-----Original Message-----
From: Nick Marentes <nickma2 at optusnet.com.au>
To: CoCoList for Color Computer Enthusiasts <coco at maltedmedia.com>
Sent: Fri, Oct 17, 2014 5:50 pm
Subject: Re: [Coco] Need help repairing a CoCo 2


On 18/10/2014 7:42 AM, didier derny wrote:
> Thanks to all,
>
> The problem, came from the ram chips
>
> I replaced them by 2  64kx4 chips and set the jumper to 64k
>
> Now the machines starts and display:
>   
>
> “COLOR BASIC 1.3”
>
> © 1984 TANDY
>
> OK
>
>
> But I don’t see any indication saying that now it has 64k
>
> It’s strange but the chips are replacing the most often are ram chips
>
>   Thanks
>
> --
>
> didier
>
>   

Do a PRINT MEM.  You should get 22824.

But I see you only have Color Basic so the number may be different.

You need to upgrade it to Extended Color Basic. I didn't know Radio 
Shack were still selling Color Basic systems by the time the CoCo2 came out.

Nick

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