Hi All,
So the machine has been working well. Turned on this morning and now it boots in to Adjustments. Both LED's come on then go off.
Measured 3.8v on 5101 - pin 22 with machine off
With Door Open:
1) Turned off/on quickly a few times - no change
2) Did dip switch 7 - factory reset. Middle switch down and pressed forward once. Displays show it move through adjustments. Pushed MPU Master Command switch and both led's flash once and then go off. Turned off switch 7. Reboot twice - no change
3) Removed - socketed and replaced the Static RAM 5101 - repeated above - no change
4) Tried a few 5101's and repeated above - no change
What's next?