From yahoo Sent Wed, Jan 7th 2015, 10:33
> So, I finally have found it. > > > First, I could not find new CA3083 chips to replace the suspected ones. They say, that they are not manufactured anymore, > which could be a big problem, for a lot of modules use these. > > > But than after a while, I came with the idea to use the suspected CA3083 chips on the A-143-9 QLFO. > The results were, that all these chips were working fine on the QLFO. > Than I replace the four suspected TL084 chips with new ones, and find out that two of them were broken. These two chips > were the closest to the damaged potmeter. > > > So, you got it right, Dieter. > Thanks, > > > Ben I'm glad to hear that the faulty circuits could been discovered. But I'm wondering about your way to test the CA3083. The A-143-9 does not use a CA3083 ! Best wishes Dieter Doepfer ------------------------------------ ------------------------------------ ------------------------------------ Yahoo Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Doepfer_a100/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/Doepfer_a100/join (Yahoo! ID required) <*> To change settings via email: xxxxxxx_xxxx-xxxxxx@xxxxxxxxxxx.xxx xxxxxxx_xxxx-xxxxxxxxxxxx@xxxxxxxxxxx.xxx <*> To unsubscribe from this group, send an email to: xxxxxxx_xxxx-xxxxxxxxxxx@xxxxxxxxxxx.xxx <*> Your use of Yahoo Groups is subject to: https://info.yahoo.com/legal/us/yahoo/utos/terms/