Autohelm type 300
 

Hi,
my type 300 autopilot computer was cooked by a nearby lightning strike
this summer. I opened it and there was some black marks on the circuit
board. Mine is 12V model. Raymarine are not really interested in
fixing it, they recommend I buy a new S3, which is a lot of $$$$.
Does anybody know what are the real differences in the 24V version vs
12V, as I could get a 24V for very little money? Is it just a few
transistors to change or the whole board is different? I'm asking this
because the new S3 is labelled as a 12V/24V unit?
thanks

Autohelm type 300
 

Likely just a minor change in the power supply. Any local tech should be
able to make this change for you which could be as simple as a different tap
off the power transformer.

Richard