Sega Master System - FM / PSG switch

[SFC Boy]

I have two Japanese sega master systems and they work fine and are great, however some games I don't like the FM music and would like to hark back to the days of the PSG music of the non Japanese machines and was wondering if there is a mod to disable the FM sound chip so the PSG chip will be used instead.
:huh:  

[NFG]

What an interesting request.

[SFC Boy]

Makes a change from the standard requests that seem to be here.

However I would like to stress that I would like a switch so I can choose FM or PSG music. As I prefer the PSG music in Afterburner rather then the FM music. ^.^;;;

Already done a mod to use the fairly defunct 3D glasses port in one of the machines as a neat stereo headphone socket.

[Guest]

I would be happy to just trade one of my SMSes for your Mark3 =]