Echopraxia Posted May 14, 2009 Report Share Posted May 14, 2009 I may have made a booboo with my mbfm. :-[I recently posted about a garbled sound coming out of my opl3 audio out. Well I messed up. I remember wiring my 12v power supply wrong while the core board connected to opl3 5v were also connected to the same power strip as the 12v supply. So when I turned on the power strip my midibox came on and then shut off very quick because the power strip's fuse blew. So I tested my core and it still uploads programs but after that I haven't got the opl3 audio to come out. Should I end up replacing the ymf262 ,yac512s and tl074s? How can I check these parts properly? Would the mbfm interconnections test be able to verify this?Regards,echo Quote Link to comment Share on other sites More sharing options...
nILS Posted May 14, 2009 Report Share Posted May 14, 2009 The interconnection test will tell you if the relevant parts of the core/pic still work. It will however not tell you anything about the opl/yac/opamps. Although opamps are pretty forgiving the seem to dislike reversed polarity ;) I'd replace the opamps first, if that doesn't help you possibly fried the yac/opl. Quote Link to comment Share on other sites More sharing options...
Echopraxia Posted May 15, 2009 Author Report Share Posted May 15, 2009 thanks for the input. I had a feeling it would come down to replacing something. Will post results. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.