NEW ISSUE:
I was just going to have a play around with the spike issue and noticed my unit reset itself every few minutes.
Cause not 100% confirmed yet, BUT the main 5V logic regulator (U27 LM317) on the top board that powers all the digital processor stuff is running STINKING HOT. Like 110+ degC after a few minutes. I think the reg is going into thermal shutdown and that is the reason for the reset.
Can anyone else confirm what temp the reg normally runs at?
12V in, 5V out OK.
I find it almost impossible to believe this is normal, but also hard to believe I did something in the teardown that is causes excess current draw.
Yes, I have this on video, but would like some confirmation before I rush to upload and make a fool of myself
Top left corner here on the small heatsink.
It should be possible to get through the vent hold on and angle on the right side (top rear vent) with a small thermocouple and probe the heaksink behind the two large capacitors.