MSX2 Panasonic FS-A1F wiki tutorials

By PAC

Guardian (4862)

PAC's picture

25-01-2014, 00:28

Recently, the Spanish user Aquijacks purchased this model of MSX2 and he decided to expand it to max specs. As the computer was improving step by step, he was writing an specific tutorial explaining each process. So, summarizing the steps were:

- Restoring a Panasonic MSX2 FS-A1F
- Converting Panasonic MSX2 FS-A1F to MSX2+
- Expanding Panasonic MSX2 FS-A1F to 512KB of RAM
- Adapting USB and 3.5" floppy drives
- Converting MSX2 FS-A1F to 230V
- Adding FM chip to MSX2 FS-A1F
- MSX2 FS-A1F misc, wiring, connections, etc…

From the MRC Spanish site, we thought that these tutorials may be of interest to the MSX community so we have decided to translate (thanks to tranx) and share them using our DIY section of the wiki (thank you Jorito&Manuel for help ;) ). At the moment only the first one is available here. As soon we have more, we'll let you know.

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By PAC

Guardian (4862)

PAC's picture

23-02-2014, 12:22

2nd tutorial added to the wiki thanks to Aquijacks and tranx. This time it's not related to the MSX2 FS-A1F modding but how to make your own flashrom 512k cartridge.

By Thier

Supporter (3)

Thier's picture

20-09-2018, 19:39

Hi,

I'm working on converting Panasonic MSX2 FS-A1F to MSX2+. The mod V9958 is already done and the MSX boot and still alive.
The next step is removing the BIOS rom...
I made a translation via google from the tutorial, I'm not intesseted to have a switch and have two BIOS in one and I want to keep the 128K ram. So, my question for my little project is if I remove only the BIOS rom and make a new one with using a M27C512?

0000-7fff basic-bios from FS-A1FX (32Ko)
8000-bfff subrom from FS-A1FX (16Ko)
c000-ffff diskrom from FS-A1F (16Ko)

will my project be ok , or I miss something like removing the little bro (PROM) beside of the bios rom on the motherboard. Somebody can help me for my little project?

Thx

By gdx

Prophet (2270)

gdx's picture

21-09-2018, 02:35

According the link below the DA531P336616-0 contains the Kanji-ROM. The DA1024D0365R (128kB) contains the Main-ROM (Bios+Basic), Sub-ROM, Disk-ROM, Kanji driver and the Firmware (A1 Cockpit). If you remove the Firmware (32kB) the data exceeds 32kB if you use a 27C512. You must use a 27C010 and lift a few pins to put it in this MSX.

https://github.com/openMSX/openMSX/blob/master/share/machine...

By Thier

Supporter (3)

Thier's picture

22-09-2018, 06:50

Hi,
About using a 27c010, I left pin 1, 2, 32 and 31, then I wired together pin 1, 32, 31 and 30. (With the 27c512, my plan was much easier, but anyway I needed the kanji driver.) So is it the way to use the 27c010?

Please let me know,

Thx

By gdx

Prophet (2270)

gdx's picture

22-09-2018, 11:09

I think you have to lift pins 1, 2, 30, 31, and 32 (see picture). Pin 1 must be not connected. Use a socket!

According the slot map, you can replace the firmware by Basic-Kun compiler for example.

By gdx

Prophet (2270)

gdx's picture

22-09-2018, 13:13

Sorry, I made a mistake of chip to explain. Pin 1 and 31 must be not connected. I think pin 30 can stay down because it is not connected inside.

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