workspace Posted January 3, 2022 Report Share Posted January 3, 2022 After using my SEQv4 for several years, I have encountered a strange bug that may be hardware or software related. When I select track button 3 or 4 in edit mode and activate step 1 and 2 (GP1 + GP2), these buttons and the step view button are freezed and can't be changed anymore unless I select a different mode or track. Since I think I am the first to have this problem, I suspect it is a hardware error. All these buttons are connected to DOUT3 of shift register U7. But swapping this IC with the other 74HC595 didn't help. Is this still a software bug? It would help if somebody with a wilba panel could confirm or deny this strange behavior. DOUT3 is the only SR of the shift register, that has 2 free pins. Maybe this is a problem? Thanks and a happy new sequencing year to everybody! Michael Quote Link to comment Share on other sites More sharing options...
latigid on Posted January 4, 2022 Report Share Posted January 4, 2022 Grüssi Michael, I would suggest to first check the tactile switches as these often go bad. I would highly doubt a software error, but I tried it on mine and couldn't replicate your error. Just the switches were bad and needed extra effort to push. The only other thing might be a bad diode or LED, but I would think that that's really unlikely. Best, Andy Quote Link to comment Share on other sites More sharing options...
workspace Posted January 4, 2022 Author Report Share Posted January 4, 2022 Dear Andy Thanks for checking on your side. I bought two replacement 74HC595 today and everything is back to normal But indeed, those Matias switches look very nice! Maybe I will pimp my SEQv4 at some day. In the meantime it is mainly the "brain" because I control most of it with one of your wonderful 1st gen BLMs! But then the 2nd gen is quite tempting... the only thing I miss are more OUTs (4xI2Cs) to run it standalone. Any thoughts in this direction? Greetings Michael Quote Link to comment Share on other sites More sharing options...
latigid on Posted January 4, 2022 Report Share Posted January 4, 2022 Very nice! I really wonder what happened to those 595s? Could it be oxidation on the sockets? For ports, I think we will stick to the 8x MIDI outs currently available. I know Peter controls over 30 synths by using Thru splitters and that works just fine too. But as another idea, you could always repurpose the old SEQ as a glorified router? Best, Andy 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.