Hi Robin

Just ducked down and checked the pinout and all as per required. Measured the voltage as suggested and got 0.04v yet the LED is glowing and not flashing. Just for kicks I measured between the base and the collector and got 12.67v. The brain was active and "flashing" yet it made no difference to the LED. If I disconnect the parallel cable the LED goes out even with power still applied to the BOB. I have tested this with 2 different BOB's, a PMDX 122 and an MB06-v2 from homann designs in Aus, both show the same behaviour. The LED stays lit even when pin 14 (assigned to OUTPUT1) is disabled. Got me stumped at this point.

Cheers