In message <[EMAIL PROTECTED] >, Richard Atkinson <[EMAIL PROTECTED]> writes
>Do you have the SFG-05 FM Synthesizer II with either of those? If so, >could you confirm that the FM chip inside the cartridge is a YM2164 and >not a YM2151? See: > >http://student.cusu.cam.ac.uk/~rga24/computer/music/index.html Both are SFG-05s, I'll open up the one I'm not using at the moment and have a look. Yep, the spare one at least has a 2164. Other than confirming the use in the SFG-05, any other differences? >Battery cover? There's a space for a small ROM cartridge, but I've not >noticed a battery compartment. At the back of the machine - between the feet. If you study the design of the case, you'll see that there are vents, then a section without actual vents. This is probably screwed in internally, as the front ROM cover can also be fixed in place with screws also. >I'll have another look tonight. As regards >the CX7, I've never seen one. Me either. I've been told they fetch high prices in Japan, and whilst I'd be interested in obtaining one, I'd have to do it in such a way that I hybridized it with a CX5MII/128 - keeping the PSU and video boards from my UK spec machine and using the motherboard and casing from the CX7. I would pay for one, however, and sell my NeXT to justify it! >If I recall correctly, the V9938 can take 41416 DRAMs (unlike the TMS9918 >in the CX5M, which had to use 8 4116 DRAMs). If so, then upgrading is >simply a matter of desoldering the old chips, putting in four 41464s in >piggy-back fashion and messing a bit with address multiplexors and the CAS >signals. *nods* The instructions are a little ambiguous if you don't know exactly what you're changing (like me). It appears that only 64K is added to the VRAM board. >Decide if you want an MSX2 CX5MII or more of the specifics of the CX7, >whatever they are. I'd prefer to have the specifics of the CX7, but having seen that SCSI interfaces are available and probably just as cheap as getting an MSX drive for my CX5s, upgrading to MSX2 alone would be worthwhile. Though I want it to work with music software too... >Lack of disk drive is my perennial problem too. There's a number of wacky >music ports I'd like to do, if I only had a decent development >environment! Wacky music ports? What is it with the disk drives on this machine? Fabrice offered me one thinking I had something MSX other than another CX5MII to trade for it, but he wouldn't sell it :/ >I don't know the particular machine you cite. http://msxmuseum.150m.com/museum/yamaha/YamahaYIS805128.jpg?50m=image It's mostly available on the Russian market in 128K form and a 256K form elsewhere, and is MSX2 with built in disk drive. Be /perfect/ for my studio with an SFG unit, as I could tuck it away and have the keyboard in an easily accessed place. Richard -- For info, see http://www.stack.nl/~wynke/MSX/listinfo.html
