A1200 timing fixes for the 1260
Moderators: terriblefire, Terriblefire Moderator
A1200 timing fixes for the 1260
Just a quick heads up that it is necessary to do the timing fixes for the TF1260 to work properly. Removing E123C and E125C from the A1200 motherboard is usually sufficient to achieve this.
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Re: A1200 timing fixes for the 1260
Alen,
What about for the ReAmiga 1200? I don't recall if John Hertell "built those in" to his board or not.
What about for the ReAmiga 1200? I don't recall if John Hertell "built those in" to his board or not.
Re: A1200 timing fixes for the 1260
The timing fix was removing capacitors that were accidentally fitted in the original factory, I would highly doubt that the re-amiga would have these capacitors fitted.
Re: A1200 timing fixes for the 1260
if you look at the locator. it doesn't tell you to populate those caps.. so "it is done" already.
also done on newer amigas from commodore /escom aswell
also done on newer amigas from commodore /escom aswell
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Re: A1200 timing fixes for the 1260
You pretty much need to do these mods with all accelerators. This was a manufacturing fault that only affects ~1-2% of A1200s.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: A1200 timing fixes for the 1260
Could I please ask....
Are all revisions of A1200 motherboard affected?
What are the symptoms that would demonstrate that the timing fixes need to be applied?
Are all revisions of A1200 motherboard affected?
What are the symptoms that would demonstrate that the timing fixes need to be applied?
Re: A1200 timing fixes for the 1260
Yes can affect all revisions, symptoms are when using an accelerator on a A1200 are games not running/Starting then blank screen or not starting at all, the best test I have found is to try the game `Mad Professor Mariarti`
This game when run with a A1200 that needs a timing fix will crash after starting or freeze with sound stuttering
This game when run with a A1200 that needs a timing fix will crash after starting or freeze with sound stuttering
Re: A1200 timing fixes for the 1260
Thanks for the info guys, where are they located on the board?
If it ain't broke, test it to Destruction.
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Re: A1200 timing fixes for the 1260
Its the assembly that was the problem rather than specific motherboard revisions i believe. Others can confirm.
———
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
"It is not necessarily a supply voltage at no load, but the amount of current it can provide when touched that
indicates how much hurting you shall receive."
Re: A1200 timing fixes for the 1260
All the required fixes are detailed here by the Ian Stedman
http://www.ianstedman.co.uk/Amiga/amiga ... o_fix.html
http://www.ianstedman.co.uk/Amiga/amiga ... o_fix.html