[Coco] 6821 PIA Chip Bad?

[Steve Batson]

Assuming you will install a socket before putting the new chip back :)


Steve Batson
Batson Photography
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On May 5, 2011, at 5:04 PM, Eric Keppel <keppel at earthsounds.com> wrote:

> Hey folks,
> 
> I just wanted to update this thread to say that replacing the PIA with a
> new one fixed the problem in that old nearly beat-to-death-by-USPS 16K
> Coco-1!
> 
> Unfortunately, a similar problem has just cropped up in my Coco-2 that I
> upgraded to 64k a month or so ago.
> 
> At least one symptom matches in that the same group of keys on the
> keyboard go out after the machine has been on a few minutes - 'n' 'v'
> '.' 'f' '6', and possibly one or two more.  My 26-3136 Coco-2 doesn't
> have socketed PIAs like the 26-3002 Coco-1 does, so I will have to
> de-solder to fix this one.
> 
> It's a shame that both of these machines have had problems - they both
> had intact warranty seals when I got them.  :(
> 
> On the bright side, I have a 128K Coco-3 on the way (thanks, eBay) so I
> will have one of each soon.
> 
> Cheers,
> Eric
> 
> 
> 
> 
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