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'''NOTE:''' All versions of [http://www.old-computers.com/museum/computer.asp?st=1&c=84 CPC 464] keyboards including Arnold 1 (according to [http://genesis8.free.fr/amstrad/faq/amstrad.php#A comp.sys.amstrad.8bit FAQ]) version with big "AMSTRAD" letters printed onto the keyboard, like the one shown on the [http://www.old-computers.com/museum/photos/s_amstrad_464_inside1.jpg photo] - #'''12''': 32 Kb ROM memory containing the operating system and Locomotive Basic. Also with the "[http://cpctech.cpc-live.com/docs/costdown.html Cost-Down]" version as well doesn't have a socket to remove and replace Operating System ROM chips, instead all the legs are soldiered on and its impossible to remote it straight away, unless you know how to de-soldier - 31/6/05.<BR>
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* B. Simply exchange your CPC 464 keyboard to Amstrad Specialist ([https://web.archive.org/web/20100201160217/http://www.midnight.uk.com:80/merline/ Arthur Cook]) for another CPC 464 keyboard with CPC 6128 ROM chip fitted (That's what I did with [[Computer_Collection_GalleryUser:Jonathanen#17th_June_2000.2A_-_expanded_to_CPC_6128_spec._.2882821.29|mine]] on Thursday 12th Oct 2000, while I was rushing to get home from Worthing and that time, I didn't know how to replace Operating System ROMs) or ask him to do it for you and paid for it, of course. <BR>
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