Search the web
Sign In
New User? Sign Up
lsdjmc2 · LSDJ Midi
? Already a member? Sign in to Yahoo!

Yahoo! Groups Tips

Did you know...
Show off your group to the world. Share a photo of your group with us.

Best of Y! Groups

   Check them out and nominate your group.
Having problems with message search? Fill out this form to ensure your group is one of the first to be migrated to the new message search system.

Messages

  Messages Help
Advanced
Midi In Problem   Message List  
Reply | Forward Message #256 of 631 |
Re: Midi In Problem

How frustrating. Every part of the midi circuit checks out. I have continuity
in all the right
places. I replaced the 6N138 and I tried a different midi connector as well.
The thing that
really makes me think midi is the issue is that when I set the unit to midi
learn mode it
perpetually waits. I can send one note blasts to the gameboy with the
plus/minus buttons or
by changing to midi full or keyboard modes, so I know the rest of the circuit is
working. I
keep thinking it must be something stupid. Pix up soon.

Thanks for being an active community. nitro2k01 - your stuff on the LSDJ wiki
was very
helpful, btw.






Sat Feb 11, 2006 6:36 am

beowulfe007
Offline Offline
Send Email Send Email

Forward
Message #256 of 631 |
Expand Messages Author Sort by Date

I just built my first LSDJ-MC2 and am having a little trouble with it. Any suggestions are much appreciated. Right now I can power on the unit, pass POST, and...
beowulfe007
Offline Send Email
Feb 10, 2006
7:31 am

It might not be it, but have you connected the diode near the optocoupler in the right direction? /nitro2k01 ... YAHOO! GROUPS LINKS ... -- The blog of...
nitro2k01
Offline Send Email
Feb 10, 2006
7:57 am

Firestarter should be able to answer all questions conserning this project, because he is awesome! and he helped me out so much when i was building mine, but...
DjNTD Larion
dj_of_entity
Offline Send Email
Feb 10, 2006
8:03 am

Try to swap the lines to the midi connector. And tell us your progress! firestARTer :-)...
firestARTer
toemmes76
Offline Send Email
Feb 10, 2006
4:25 pm

Thanks for the fast responses. I switched the diode, did not resolve. I switched the midi cables, did not resolve either. Right now I'm testing with my...
beowulfe007
Offline Send Email
Feb 10, 2006
5:02 pm

How frustrating. Every part of the midi circuit checks out. I have continuity in all the right places. I replaced the 6N138 and I tried a different midi...
beowulfe007
Offline Send Email
Feb 11, 2006
6:36 am

Check again, turn the diode around again, try to swap the 2 midi-lines and finally, replace the 6n138. Also check if the line from the 6n138 is connected on ...
firestARTer
toemmes76
Offline Send Email
Feb 11, 2006
9:42 am

Sorry, Yahoo's rich-text editor beta is truely a beta. Anyway, my real post: The components are all now back to the way they are on the schematics. I am...
beowulfe007
Offline Send Email
Feb 12, 2006
6:02 am

The diode near the opto-coupler is turned correctly, so that's not the problem. Have you tried putting the 6N138 the other way? Weird enough, it seems that...
nitro2k01
Offline Send Email
Feb 12, 2006
7:43 pm

The mark on the 6N138 is there, just hard to see in that picture. I turned it around just to doublecheck, but it did not resolve it so I put it back. Thanks...
Brett Marshall Lefferts
beowulfe007
Offline Send Email
Feb 12, 2006
9:25 pm

It looks like your chrystall might be too far away from your PIC. I had the same problem come to think of it, and i remember it was murder getting it all back...
DjNTD Larion
dj_of_entity
Offline Send Email
Feb 14, 2006
3:11 am

Ok, so I tried replacing the resistors, no difference. I tried moving the crystal closer, and replacing it, no difference. I tested every point through out...
beowulfe007
Offline Send Email
Feb 14, 2006
6:34 am

... Just thought i would say that, i should have mentioned this before sorry- but you will need to move the 22pf capacitors along with the crystal so they are...
DjNTD Larion
dj_of_entity
Offline Send Email
Feb 14, 2006
10:02 am
Advanced

Copyright © 2009 Yahoo! Inc. All rights reserved.
Privacy Policy - Terms of Service - Guidelines - Help