"Richard Lane" wrote in message
. ..
Anyone have the schematic for the control head of the old British made
Autohelm 4000 autopilot?
Dick

The older units with the small LCD display, or no display, turn up on eBay
quite regularly and sell for around $100.
I think these would be pretty hard to repair even if you had a schematic as
they contain surface mounted devices and some proprietary chips.