PE+ Super Board with Coin- In Timeout Error

[danatlvc]

Howdy All,
I have a super board that gives me a "Coin - In Timeout" error ONLY after the machine has been on 45 minutes every time?. It clears opening & shutting door, but returns quickly. I recapped it except the 2 large 6800uf 16V with no luck. I don't have schematics to try & narrow it down. Board worked fine prior I believe or I wouldn't of kept it, but it's now been stored indoors under the machine for many years now. Posibly had this ssue prior never using it more than 40 minutes, dunno, don't think so? It's in the board not the machine because other board work fine in it & has for years. All plug pins & board traces on it look good. I find the 45 minute until error odd? You can pretty much time it?
Any suggestions are help would be greatly appreciated

[Tilt]

Sounds like you have a thermal intermittent component on the MPU.  It heats up and it fails.  A can of component cooler can help find those problems.  Let it heat up and fail, then remove the board, spray the suspect component (cooling it) and put it back and see if the problem clears.  If so, you found it, if not move to the next one.  You can also use a can of "canned air" and turn it upside down to freeze a component.  It's cheaper than component cooler.

[danatlvc]

Super technic idea & a great learn for future. Thanks much & appreciated

When this board is warmed up with error showing, it clears for 1 to 2 hours with door open shut clear method? Cold cleared with door shut it takes 45 minutes to appear. Pulling the board & reinserted cold or warm the door still has to be shut to clear errors on PE+ unfortunately. If error stayed up after clear cooling technic would work

[danatlvc]

I thought it might be an easy fix, but I have many hours in it. Time for the parts pile & always up for suggestions.
Thanks