Search found 15 matches

by glennefj
Tue Apr 08, 2014 4:01 am
Forum: PAiA Jabber
Topic: Variable resistor settings on PAiA 9700s
Replies: 3
Views: 17175

Re: Variable resistor settings on PAiA 9700s

The problem is that I don't have enough experience to know what "right" is. I can't hear any difference while I'm adjusting them, because I don't know what I'm looking for...
by glennefj
Mon Apr 07, 2014 9:55 am
Forum: PAiA Jabber
Topic: Variable resistor settings on PAiA 9700s
Replies: 3
Views: 17175

Variable resistor settings on PAiA 9700s

Does anyone have a guide on how the resistors are to be adjusted? VCO: The VCO scales are both 1-2 o'clock, and the two other resistors are adjusted by ear (near mid position) VCF: Both scales are at mid position, as the manual tells you to do. But should they be adjusted different? How to set them ...
by glennefj
Mon Apr 07, 2014 9:50 am
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

Turned out I was following the wrong manual, so I set the scale instead of pitch.
Near 100% correct between the OSCs now, and tracking a digital synth correctly.
by glennefj
Fri Apr 04, 2014 10:35 am
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

I can't get them in unison, and set to track perfectly with both scales at 1 o'clock... What could be wrong? Both are beneath 12, one has to be set to about 11 for the VCOs to be at unison. If I set both to 1 o'clock, VCOB is several notes higher.
by glennefj
Thu Apr 25, 2013 1:04 pm
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

Who am I kidding, I couldn't wait to this weekend. I dug up my PAiA project from the moving boxes, and started again. Instantly I found something strange; I just did the simple VCO tests first, putting both VCOs to max, and alternating between them to hear if there were any differences. I had both S...
by glennefj
Thu Apr 25, 2013 6:14 am
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

I'm finally getting finished with most of the refurbishing.. *puh*. I'm hoping to test the PAiA again this weekend. Will start from scratch with adjusting the MIDI voltage etc., and go over to testing VCO etc. Will post my experiences, and will most likely need some further help. I was hoping to be ...
by glennefj
Tue Oct 09, 2012 3:44 pm
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

Thank you Scott, this is a lot of help!! I'm still having some difficulties making it go 100% perfect the whole range, but I think I can try tweaking it again. I couldn't manage to find out the other problem though (VCOB/VCOA sync not working properly), so I think I still need some help there. I get...
by glennefj
Sun Sep 23, 2012 4:35 pm
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

Also - the next step, when connecting VCOB pulse to VCOA sync, I get different sounds for each key. Sometimes both follow the pitch perfectly, but on some keys, there's no significant pitch change when playing them. I'm so frustrated now, I can't seem to get further to the next module. My VCO just w...
by glennefj
Sun Sep 23, 2012 9:24 am
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

I can't seem to make it work! I've used I guess 15 hours now trying to tune the VCO. I followed your overview manual, except I switched so that the Scale adjustment is done on the lower octave, and pitch on the higher. Anyways, I can get them adjusted so that both OSCs are at center, at perfectly in...
by glennefj
Thu Sep 13, 2012 7:37 am
Forum: PAiA Jabber
Topic: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.
Replies: 16
Views: 48441

Re: PAiA 9720 VCO Pulse Width - Goes quiet when fully CCW.

Wait... Am I doing this right? I set mode 1 like this: 1 - off 2 - off 3 - off 4 - off 5 - on 6 - on 7 - on 8 - off Isn't this correct? I tried again setting all of them to "on", that did give a signal. Why isn't 1-4 being used to anything? Their all off in the Firmware operating modes manual. Edit...