Re: Weird issue with the Pet 2001-N

From: David Laffineuse <davidlaffineuse_at_me.com>
Date: Fri, 5 Apr 2019 20:17:47 -0400
Message-Id: <1AC83FF0-9AA4-4705-9D0F-B79FF304F0FC_at_me.com>
Hi guys, i do confirm that a partial RAM replacement fixed the problem so thanks for all the troubleshooting help!

Sent from my iPhone

> On Apr 5, 2019, at 12:27 PM, Bill Degnan <billdegnan_at_gmail.com> wrote:
> 
> Maybe he should put the bad RAM back in so we can continue to diagnose the problem  :-)
> b
> 
>> On Fri, Apr 5, 2019 at 12:18 PM Steve Gray <sjgray_at_rogers.com> wrote:
>> On FB the OP said he replaced some ram and the problem has been solved.
>> 
>> Steve
>> 
>> 
>> On Tuesday, April 2, 2019, 9:56:55 p.m. EDT, Steve Gray <sjgray_at_rogers.com> wrote:
>> 
>> 
>> Sounds like bit 3 is being dropped when stored as a variable. That would suggest that you have a bad ram at the top end of user memory space. 
>> 
>> Steve
>> 
>> 
>> > On Apr 2, 2019, at 9:07 PM, David Laffineuse <davidlaffineuse_at_me.com> wrote:
>> > 
>> > The keyboard seems to be working perfectly fine.
>> > For instance if I type on the key 'Y', the letter Y is displayed on the screen.  However if I set a variable to Y, e.g. a$="Y" then I print a$, I get a Q on the screen...
>> > The same occurs with I which produces an A, H which produces _at_, Z which produces R, X which produces P, 8 that produces 0, and 9 that produces 1.  All the other letters are fine.
>> > What is going on?
>> > David
Received on 2020-05-29 21:14:14

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