I got my QL in the UK in 1990.
It has been in storage since 1996 but now would like to get it running again.
Something not working. Almost, so I am working on fault finding.
Graeme
Hi from New Zealand
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vanpeebles
- Commissario Pebbli
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NormanDunbar
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Re: Hi from New Zealand
Greetings! And Welcome.
Can we have your Prime Minister please? Our one is broken.
Cheers,
Norm.
Can we have your Prime Minister please? Our one is broken.
Cheers,
Norm.
Why do they put lightning conductors on churches?
Author of Arduino Software Internals
Author of Arduino Interrupts
No longer on Twitter, find me on https://mastodon.scot/@NormanDunbar.
Author of Arduino Software Internals
Author of Arduino Interrupts
No longer on Twitter, find me on https://mastodon.scot/@NormanDunbar.
Re: Hi from New Zealand
Broken? I don't remember him ever being in working order ?!?!NormanDunbar wrote:Greetings! And Welcome.
Can we have your Prime Minister please? Our one is broken.
Cheers,
Norm.
--
All things QL - https://dilwyn.theqlforum.com
All things QL - https://dilwyn.theqlforum.com
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NormanDunbar
- Forum Moderator
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Re: Hi from New Zealand
Good point Dilwyn, and well made.
Hope you are well.
Cheers,
Norm.
Hope you are well.
Cheers,
Norm.
Why do they put lightning conductors on churches?
Author of Arduino Software Internals
Author of Arduino Interrupts
No longer on Twitter, find me on https://mastodon.scot/@NormanDunbar.
Author of Arduino Software Internals
Author of Arduino Interrupts
No longer on Twitter, find me on https://mastodon.scot/@NormanDunbar.
Re: Hi from New Zealand
Making some progress after getting a Minerva ROM but most RAM showing faulty randomly.
Have ordered a ULA chip IC22 to see if that works
Have ordered a ULA chip IC22 to see if that works
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vanpeebles
- Commissario Pebbli
- Posts: 2850
- Joined: Sat Nov 20, 2010 7:13 pm
- Location: North East UK
Re: Hi from New Zealand
Keep up the good workmaigretnz wrote:Making some progress after getting a Minerva ROM but most RAM showing faulty randomly.
Have ordered a ULA chip IC22 to see if that works
Re: Hi from New Zealand
Have you checked other threads of people repairing QLs? There are lots of fundamental things to check like corrosion & chip seating. If your QL was working when you stored it a chip death seems unlikely unless it hit sub zero temperatures.maigretnz wrote:Making some progress after getting a Minerva ROM but most RAM showing faulty randomly.
Have ordered a ULA chip IC22 to see if that works
One of the experts should stick a sticky up of the most common problems & fixes.
Re: Hi from New Zealand
If you get a (whatever fancy) picture and the QL starts up to execute ROM code (shown by Minerva coming up with a RAM error), it's very unlikely that any of the ULAs is faulty. The QL ULAs are not known as being particularily robust (that means, they do actually die), but if they do, it's rather nothing at all than partially working.
ʎɐqǝ ɯoɹɟ ǝq oʇ ƃuᴉoƃ ʇou sᴉ pɹɐoqʎǝʞ ʇxǝu ʎɯ 'ɹɐǝp ɥO
Re: Hi from New Zealand
I have managed to borrow a parts QL and swapping the ULA made no improvement.
I cleaned everything that could be cleaned but no improvement.
The parts QL is indicating a couple of faulty RAM chips so perhaps that one may be an easier fix.
Now that I have 2 semi functioning QLs at least I can compare them
I cleaned everything that could be cleaned but no improvement.
The parts QL is indicating a couple of faulty RAM chips so perhaps that one may be an easier fix.
Now that I have 2 semi functioning QLs at least I can compare them