27592re: Apple I power issue was Re: [midatlanticretro] Re: Sunday at Maker Faire demontrating the Apple I Mimeo
- Oct 2, 2012-------- Original Message --------
> From: "Christian Liendo" <christian_liendo@...><email@example.com>
> Sent: Tuesday, October 02, 2012 10:13 AM
> To: "firstname.lastname@example.org"
> Subject: Apple I power issue was Re: [midatlanticretro] Re: Sunday atMaker Faire demontrating the Apple I Mimeo
>it was the power. Can you describe any triggers.
> From: Mike <mike@...>
> >This is the first time that I have heard of such a problem. Hopefully
>line/carriage return handling. That was fixed by changing a component to
> >The only thing similar that I've seen, is problems with end of
one with a slower set up time.
>alone, you would see _ a lot.
> The unit would randomly generate a _ character. If you left the unit
> Also the power light would fluctuate, which I thought was odd.go, not only for this but if these was a surge or something, at least the
> Yea, I talked with the guys and we agree that a small UPS is the way to
UPS would take the hit. I rather kill a new UPS..
>Or, it could be that the Apple II keyboard you borrowed has a bad _ key,
making contact when not wanted. Replace the keyboard, see if that fixes
the problem (or put the keyboard on an Apple II to see if the same problem
occurs there too.
If random characters are appearing on the screen after many hours of use,
you have an IC that is farting out. Don't use until fixed. replace things
like the 7805, etc. Normal, even abnormal power fluctuations shouldn't
cause the _ key to start firing, an no other symptoms.
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