ZX81 strange keyboard problem?

Anything Sinclair ZX Basic related; history, development, tips - differences between BASIC on the ZX80 and ZX81
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sirmorris
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Re: ZX81 strange keyboard problem?

Post by sirmorris »

Screen Shot 2017-07-20 at 17.21.07.png
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1024MAK
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Re: ZX81 strange keyboard problem?

Post by 1024MAK »

Like :P

Mark
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Moggy
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Re: ZX81 strange keyboard problem?

Post by Moggy »

Who's Andy "Rae" :?: ;)
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sirmorris
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Re: ZX81 strange keyboard problem?

Post by sirmorris »

<cough> :lol:
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Andy Rea
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Re: ZX81 strange keyboard problem?

Post by Andy Rea »

Lol.... I'm back home now and well curiosity got the better of me so i took pin 39 and bent it aside... take that A6' i said to the ula... and this is what happens with " HELLO WORLD " repeated
Image

Looks like in that case the bit stays high, oh well all good fun
what's that Smell.... smells like fresh flux and solder fumes...
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Moggy
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Re: ZX81 strange keyboard problem?

Post by Moggy »

sirmorris wrote: ↑Thu Jul 20, 2017 6:22 pm <cough> :lol:
Naughty Charles very naughty!!
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Paul
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Re: ZX81 strange keyboard problem?

Post by Paul »

Moggy wrote: ↑Thu Jul 20, 2017 4:42 pm Who's Andy "Rae" :?: ;)
Maybe a relative of Sugar Rae Robinson? :geek:
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The_Bert
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Re: ZX81 strange keyboard problem?

Post by The_Bert »

sirmorris wrote: ↑Thu Jul 20, 2017 1:59 pm Screen Shot 2017-07-20 at 17.21.07.png
What do I have to do to get one of those? It's so beautiful, so majestic! I want one! *throws a hissy-fit on the floor*
:lol:
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Zxkim81
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Re: ZX81 strange keyboard problem?

Post by Zxkim81 »

Can I offer an explanation to this problem please.
I think it could be the memory at fault if you plug in the ram pack
Does the problem go away? If so it's the s ram ic,s.....Kim 😋
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