On Thu, 13 Dec 2001, Richard Kilpatrick wrote: > In article <[EMAIL PROTECTED] > >, Richard Atkinson <[EMAIL PROTECTED]> writes > >If anyone in the UK is thinking about obtaining some of these chips, send > >me a mail - I'm looking into doing a similar sort of thing for a UK order. > >A CX5MII/128 with a video chip two generations more advanced would be > >quite amusing :) > > How much are they again?
Something like $17. They do hardware scrolling and unusual YJK modes. > Anyway, the CX5MII/128 doesn't have enough VRAM to make use of it's > 9938, let alone a 9958 :) However, I'm interested in one or two perhaps, > for my potential YIS-805 - a Yamaha MSX2 with music (replacing the > network module) and painter, in a separate keyboard case, and upgraded > to MSX2+! I had a look at that machine on a site somewhere. Wow; nice machine! Do let us know if you have any luck finding one. > If you look at the motherboard of your CX5MII, you'll see empty sockets > on the motherboard (I've just had both mine apart to clean them, and > straighten the keyboard on one of them, it must have had a weight on it > once!), I think you should be interested in ic301-308 - these are for > 64K VRAM. You then replace the two 16K VRAMs on the daughterboard with > the 41464s. Jipe's instructions are pretty clear, even if the scanned > tech schematics aren't on the location of 4 of those VRAM chips (most of > them are under the VRAM board). I've never had mine open, as I was confused by the lack of screws on the unit. Anyway, 8 ICs is an unfortunate number - they must be using 4164 DRAMs. Still, with some combination of 4164s and 41464s I'm sure it's possible to put 128K VRAM into the machine. Richard -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
