So you’ve made an adapter, inserted the SFG-05 the wrong way, blew the YM2148 and need to program an new EPROM? No? well I did once. Fortunately I was able to get the ROM from another CX5M, but you might not be that fortunate.

Until now: I’ve saved the SFG-05 ROM and some software cartridges in case you have similar problems. All ROM images start at 4000h except for the SFG-05 cartridge (which starts at 0000h) Please contact me if you have any additions.

I’ve put the scanned cartridge manuals as well as collected manuals from various places on the internet like yamaha, passionMSX and grauw.nl on Google Drive Google Drive (click to view)
 

	ROM Name	Size	Screenshot
	DMS-II Real Time Sequencer ROM Image By Abdul H. Ibrahim	32 KB
	DMS-I Real Time Sequencer ROM Image By Abdul H. IbrahimSee page here about mirroring the rom	16 KB
	MidiSlav DSK Image Carolyn Eng	720KB
	SFG-01 ROM Image*	16 KB
	SFG-05 ROM Image*	32 KB
	YRM-101 FM Music Composer	16 KB
	YRM-102 FM Voicing Program	16 KB
	YRM-103 DX7 Voicing Program Download the manual from File-Hunter.com	16 KB
	YRM-104 FM Music Macro**	32 KB
	YRM-105 DX-9 Editor	32 KB
	YRM-301 MIDI Recorder	32 KB
	YRM-302 RX Editor Download Manual (10MB)	32 KB
	YRM-303 MIDI Macro & Monitor Download Manual (11MB)	48KB
	YRM-304 TX-7 Voice Editor	48KB
	RARE YRM-306 DX-7-II/FD Editor Special thanks to Chris Conkie who went through a lot of effort to get this to me.	64KB
	YRM-305 – DX21 Editor	32KB	–
	YRM-501 FM Music Composer II	32 KB
	YRM-502 FM Voicing Program II	16 KB
	YRM-506 FB-01 Voicing Program	32 KB
	CMW-31 Keyboard Chord Master	16grab KB
	GAR-01 Graphic Artist	32 KB
	TWE-01 Word Processor / Teleword Enhancer Type “_TW40” to start	48 KB
	UGA-02 Graphic Card Program	16 KB
	UPA-01 Playcard Program	16 KB
	CMP-01 FM Auto Arranger	48KB

All ROM-images start from address &h4000 except for the SFG05 and YRM-303 ROM-images which start at &h0000

* To upgrade the SFG-01 cartridge to a SFG-05 you have to connect address line A14 from the EPROM (IC104, replace with type 27C256). Solder a wire between pin 27 of the new EPROM to pin 35 of the side slot connector. Remove the 5V connection on the circuit board between pin 27 and 28 on the EPROM. (Thanks to Erwin Meeder for the 5V Addition.)

** Henk Koekoek has sent me scanned articles from MSX Club Be/Nl Magazine which describes how to use the built-in speech synthesis on the Music Macro cartridge. Click here to read it.