320 VCLFO acting strange
2006-12-26 by Tom Adam
Howdy, I assembled my 320 and it's not working according the specs. With speed knob on 10 i have a frequency of 85Hz, with the same knob all the way down, nothing is happening at all. Actually nothing is happening when moving the speed knob from 0 to 4. well, the voltage changes, but that's it. Speed knob at 4.5 it suddenly starts oscillating at 4.1Hz. I've looked at the output for quite some time now, and I'm very sure I see nothing happening with the speed knob below 4. I checked resistors and all other components, looks good to me. Also, the trouble shooting section speaks of some pins of U3&U4 to check for some waves, they are there all right. I don't know what the frequencies should be at those points though. Any suggestions? Enjoy the holidays! Cheers, -- Tom Adam The Big Ear http://users.pandora.be/the-big-ear/ Check out the download section!