[grayuk]

Yes, I saw that one but, I do not know if the rest of the gear was in sun or not.
If we assume it was not then maybe....there is a fault else where.
But, what is not clear is if the rx, in his case was enclosed all around (as it would be on an installation) or if just sitting on the paper with glass on top.
If that was the case then it is not a fair test of what is being described in the other failures. Air can move around too freely and remove heat.
I am not being negative here; I just want to be confident that this is a real problem.
I spend my life discovering and fixing issues in all manner of equipment, from military to medical.
It is critical to ensure that tests are definitive and not hiding another issue. (See the post on the vanilla ice cream!). It may be that this is actually an rx fault, if so, we can take measures to work around. But if it is not and we are all fooled, we are hiding another problem that will bite our ‘ass’ again when we least expect it. This is why Futaba will not ‘jump’ until they have had time to fully prove one way or another, then take the ‘right’ action.

I was once called to fix some medical equipment that failed on a regular basis, normally around 4 pm, but only on certain days and at certain times of the year! Strange but true (vanilla!) Other engineers had been in an failed to resolve the problem. Well after much head scratching I found the problem.
IA building opposite had a glass front, and at around 4pm in certain months, the sun was in the right position (but only if it was hot and the windows were open) light reflected into the room and onto the optical measurement sensors! This was enough to throw them out and give false readings! Now how weird is that?

Paul