I left camp for now I go back in three weeks, the help is much appreciated and I will post a reply when I’m back at camp with results!I'd suggest hooking you voltmeter to meter M7 terminal I. The I should be embossed in the case of the meter by the terminal. Connect the meter negative to chassis ground. There is a ground stud on the right corner on the front panel.
Start the set and monitor the voltage on that M7 terminal. It's supposed to stay at 24 volts. Watch to see if it drops out the moment the set stalls. If it does then there is an intermittent power connection that will need to be located.
If power drops out there when it stalls repeat connecting your meter to one of the used terminals on the Emergency off switch.