Hi,
the Yamaha SFG-05 works fine with the Sakhr AX-370 via adapter.
But trying to use the YRM-104 or YRM-504 FM Music Macro Cartridges produces a black screen even before any MSX start screen appears.
Any ideas? Would like so much to program the SFG-05 with the Music Macro Basic extension...
I don't know what these cartridges have on their circuits and I am not sure if they try to use any of MSX circuit components related to FM music. I can tell you that AX-370 misses a lot of components related to the FM circuit unlike Sanyo Wavy 70FD that already have these components installed. If you open the AX-370 you will notice many empty places on the FM audio circuit like a place for YM2413 chips, some resistors and capacitors in addition to an inductor, and there is a link cable that is also not there between points A to A, and B to B for the same FM Circuit.
Yes, the cartridges are using the Yamaha SFG-05 module, no FM on board circuits.
Even without the SFG-05 module they produce on a MSX-1 system a message, that the module is missing but you can work on.
Other modules are working in the same slot and the cartridges are working with a MSX-1 system.
Hmm, the machine just showing a black screen, not even hanging after the boot logo, has me puzzled. I almost think it is an electrical issue of some sort. Is the power light on when the screen is black?
Would anyone who owns Sanyo Wavy 70FD give me a picture of the front PCB board showing the inductor L105? I need to install this one but I don't it's value. a clear picture of that area of the board will be enough for me to get the value.
@sdsnatcher73: yes, you will not even see the boot logo it turns directly after a short pixel blink on the left down corner into the black screen, but the power on led is on and you can also switch the reset button.
Update: also Uridium by trilobyte on a 27c512 does not work with my AX-370 - causing the black screen described above.
Because it´s written in the Wiki, that some modules won´t work with the AX-370 - does anybody know if there is such an issue with 64kb-modules on the AX-370 ?
