Philips MSX-Audio Expander Bios Upgrading

Some users have asked us how to modify the Philips Music Module expander to support the new MSX Audio Rom 1.3 made by Brazilian MSX user FRS. This new bios has quite some new features like better MSX-Music instrument support and support for games that make use of the MSX-Music (FM-PAC) bios. A lot of ASCII MSX-Music now work! Please follow the FRS page link later on in this article for the release notes.  We have tested this new rom with our expander and indeed some modifications needs to be done. Although those modifications are not complicated to do at all.

First you have to remove the yellow wires on the bottom of the expander:

Then you have to connect jumpers labeled 2 and 3 on the expander board. See below for the example (done on the bottom of the expander)

And this is all you have to do! Please note that the new MSX Audio bios from FRS does not include the original Philips software.
The latest bios from FRS can be downloaded at his homepage, in the tools section: http://frs.badcoffee.info/tools.html

You need the file msxaudio13.NMS-1205.rom from the MSX Audio Bios v1.3 zip package. Please contact Bas at www.bas-ditta.info if you need help obtaining a new flashed rom. If you own a Music Module and want better support for games and music, please note that we still have a few MSX Audio Upgrade boards left.

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