Doepfer

Hi!

My A-183-3 (Amplifier) started smoking the other day. I think that I overloaded it with a strong audio signal? Can't really see any other reason since at the time it started smoking I was was feeding it a signal to it - to boost the audio signal for the a-129 vocoder.

Not so good modules can short and start smoking - fire hazard...

But anyways... I assume it is the little IC circuit the got burnt... What kind of IC circuit is it and is it replaceable (looks like one simply can can put in a new one...?). Any advice would be appreciated.

Best, Lars

> Hi!
> My A-183-3 (Amplifier) started smoking the other day. I think that I overloaded it with a strong audio signal?  Can't 
> really see any other reason since at the time it started smoking I was  was feeding it a signal to it - to boost the 
> audio signal for the a-129 vocoder.  
> 
> Not so good modules can short and start smoking - fire hazard... 
> 
> But anyways... I assume it is the little IC circuit the got burnt...  What kind of IC circuit is it and is it replaceable 
> (looks like one simply can can put in a new one...?).  Any advice would be appreciated.
> Best, Lars

The circuit is a dual OpAmp (MC1458) and can be repalced. But even another pin-compatible circuit (e.g. TL082) should work. 

Best wishes
Dieter Doepfer