From yahoo Sent Tue, Feb 26th 2019, 09:07
Probably the range of the trimming potentiometer P18 (- adjust) was not sufficient because P18 and R94 are connected in series. The effective value of R94 (normally 22k) has been probably reduced by soldering a second resistor in parallel to obtain the correct adjustment for P18. But I don't think that the additional resistor is 10k because this would result in about 6,8k which is totally different from the 22k. I cannot imagine that the value for R94 is that far away from the correct value for the P18 adjustment. I'd expect a higher value for the additional resistor (in the 47k...100k range). I'd not recommend to remove the resistor as I think it has been added intentionally. Best wishes Dieter Doepfer > -----Ursprüngliche Nachricht----- > Von: xxxxxxx_xxxx@xxxxxxxxxxx.xxx [mailto:xxxxxxx_xxxx@xxxxxxxxxxx.xxx] > Gesendet: Montag, 25. Februar 2019 23:02 > An: xxxxxxx_xxxx@xxxxxxxxxxx.xxx > Betreff: Re: AW: [Doepfer_a100] Re: A-126 Malfunction > > > But strange that one of my additional parts is a resistor, that > has been soldered right at the same place of another resistor, > but on the solder side. > This resistor is R94/22K near the Up Output on the edge. > The additional resistor is, I think, 10k; it is brown-black > without a multiplier color. > > Should I remove it? ------------------------------------ ------------------------------------ ------------------------------------ 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/