Mark

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[Mark @markgm30]

@asahara420316 @SOW74656 I don't think I've ever seen that catalog before, do you have a scan of the entire thing? Do you know the date of it?

[Mark @markgm30]

@tech963 You're in luck, the PAL software has been found!

[Mark @markgm30]

I realized my Supercharger (SMC-7086) for my Sony SMC-70 only had 512KB of RAM, so I did the only logical thing and recreated the SMI-7056 RAM board! All of the components are still available. Now I just need to find Sony's CP/M-86 for it so I can test it.

[Mark @markgm30]

@yanatoku Ah, yes, of course. How lucky you don't have to discard it, perhaps the luck of the 7's.

Here are the two keyboards, the kanji differences should be clear.

[Mark @markgm30]

@yanatoku I think the difference is the keyboard layout for kanji input. That was a clever way using the volume switch to do the SMC-77 mod! Did you archive the ROMs somewhere?

[Mark @markgm30]

@asahara420316 It seems like the SMC-70K follows the JIS X 6002 standard kana layout, whereas the Japanese SMC-70 and SMC-70G both followed the Gojūon (fifty sounds) kana layout. It's interesting there is no mention of this model anywhere!

[Mark @markgm30]

@toshitada1973 I wonder if golf.bas is the same golf.bas that's on the YGKS 58 SMC-70 Demonstration Cassette (along with demo.bas, card.bas, and https://t.co/k1AsSc7977). I don't know if I've come accross a copy of that before.

[Mark @markgm30]

@ElliotTheFury Oddly this one doesn't seem to have a part number!

[Mark @markgm30]

@toshitada1973 If you are ever looking for something to do and have an EPROM reader, could you take a dump of the two ROM chips on the riser board and the ROM on the motherboard? The US never got that riser card as an option, we only have 16+16K of ROM on the motherboard.

[Mark @markgm30]

@toshitada1973 It seems like the TCM-232 was labeled the TCM-737 in the US!

[Mark @markgm30]

I never tried loading files from a tape before, it really makes me appreciate never having to use the cassette port on the SMC-70! The TCM-737 matches the aesthetic really well, and it was a bargain back in the day at only $50 (about $173 today).

[Mark @markgm30]

@asahara420316 Do you know if the PSG was useful outside of adding a SMC-777 ROM, or was it created for that purpose? There's not really any documentation on it.

[Mark @markgm30]

@toshitada1973 I think you technically could if you replaced the bus cable with one that had a second connector (or crimped on a second connector), but officially it only supported a single card. There wouldn't be a clean way to mount it.

[Mark @markgm30]

@toshitada1973 Over half a megabyte of ROM chips, that's impressive! The 24x24 character set required a lot more space than the 16x16 set.

[Mark @markgm30]

The hard drive controller and 6 MB Corvus hard drive for the Sony SMC-70 (6SNY). It sold for $2,195 in 1983 ($7,350 today), $720 more than the base #smc70 price of $1,475 with no floppy drives, which were another $1,100 at launch. Available in 5.7, 12.1, and 18.4 MB capacities.

[Mark @markgm30]

@RDKLInc This is the main mechanism that gets gummed up.

[Mark @markgm30]

@RDKLInc Definitely two drives...the first one is for the OS, and the second one is for storing files. The white button is integrated into the drive. The mechanism is likely solidly greased in place (this is what causes people to damage these drives).

[Mark @markgm30]

@RDKLInc Here is more information from someone who worked at Sony back in the day on the entire Series 35 line if you haven't seen it already: https://t.co/C9uVY5Fwu0

[Mark @markgm30]

@RDKLInc The drives likely need to be relubricated, 45 years is a lot to ask of grease!