Monroe, As it has been stated, the double message is Yahoo's bug, a computer bug. So please, at least be polite next time you send me a message. Thank you, Sidney. --- In Doepfer_a100@yahoogroups.com, Monroe Eskew <monroe.eskew@...> wrote: > > Why are you sending 2 copies of every email? Please stop that. > > On Wed, Feb 16, 2011 at 10:56 PM, Sidney <sidney_honi@...> wrote: > > > > > > > Mr. Doepfer. I successfully changed the A-190-2 Q1 resistor by replacing it > > with a BC547B transistor and the gate output is now working. But I think > > that the CV V/V output is not working. Is there any piece I can replace to > > fix this? > > > > > > Thank you, > > > > Sidney > > > > --- In Doepfer_a100@yahoogroups.com, <yahoo@> wrote: > > > > > > > I think I had plugged the A190-2 the wrong way the first time I > > > > plugged it into the power bus board, and might damaged the unit. > > > > It seemed to be working fine, as it was receiving midi messages > > > > and activating the A110 both from the CV1 and pitch bend from > > > > CV2. But the gate output problem and out of tune scale indicated > > > > there is something wrong really. Maybe I will be necessary to buy > > > > a new one. > > > > > > > > Thank you for the kind attention. > > > > > > > > Sidney. > > > > > > If the A-190-2 was plugged in the wrong way the gate output is fried. In > > > this case the collector of the npn gate output transistor is connected > > > to -12V which destroys the transistor. This explains why the gate output > > > does not work anymore. It is difficult to say if other sections of the > > > module are defective too. You may try to replace the transistor (Q1, > > BC547C) > > > to see if this is the only defective part. Or you send in the module for > > > repair to the dealer where you purchased the device. > > > > > > Best wishes > > > Dieter Doepfer > > > > > > > > > > > > [Non-text portions of this message have been removed] >
Message
Re: Can't trigger A-140 from A-190-2
2011-02-17 by Sidney
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