Thanks for getting back to me so quickly Dieter.

That sounds the most likely thing to have happened, although I'm
always careful to turn the power off before connecting/disconnecting
the tanks. Is the replacement of the LM386 amp circuit just a matter
of swapping out the op-amp IC Is it worth trying to see if that
solves the problem Or is it a more complex operation I just don't
want to be parted from the reverb for too long, as I'm based in the
UK, and sending to and from Germany takes time!

I'm guessing if I did short the RCA to ground, this isn't something
that would be covered by the warranty

Many thanks,

TJ

--- In Doepfer_a100@yahoogroups.com , <yahoo@...> wrote:

> The power amplifier of the A-199 that drives the reverb unit has no
short
> circuit protection as one assumes that it is internally connected.
If you
> made a short circuit with one of the RCA connectors to GND (e.g. case or
> mounting rails) while the module was powered probably the power
amplifier of
> the module became defective and the LM386 amplifier circuit has to be
> replaced. But that's only a guess (diagnosis from the distance is
generally
> uncertain). Please check also the bus connection of the module.
>
> Best wishes
> Dieter Doepfer
>