Just a little update and closure.
I got hold of a replacement LM78L12 12V 100mA and swapped out the Zetex ZSR 1200 from the board. It cost me $0.20. No more hiccups!
Thanks to Thierry and Don for the pointers which led to a successful diagnosis and fix. No thanks to Moog who would have wanted $90 to ship a RMA.
So, after 2 weeks of peace and quiet, time to wake up the neighbours with some caterwauling.
I got hold of a replacement LM78L12 12V 100mA and swapped out the Zetex ZSR 1200 from the board. It cost me $0.20. No more hiccups!
Thanks to Thierry and Don for the pointers which led to a successful diagnosis and fix. No thanks to Moog who would have wanted $90 to ship a RMA.
So, after 2 weeks of peace and quiet, time to wake up the neighbours with some caterwauling.