Should a 6800 chip in a 2518-35 mpu board run hot. Testing a good condition board with all new chips on the bench and just felt U9 which seems hot. I suppose normally it’s something you never do. Ken
Pinball info
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6800 temperature
- Thread starter paddythegreek
- Start date
they get warm
OP
OP
This is a bit more than warm. Holding your finger on for 10secs yr finger is hot. I’ve tried a couple of 6800’s and swapped the 6821’s for others to no avail.
OP
OP
I could but in all fairness I shouldn’t need to. Somethings making it run hot, but what
Not a lot of reasons why it would get too hot (and not sure it is, they run at up to 80 degrees). Most obvious would be input voltage or clock frequency too high. If those are OK and it is running fine you are probably Ok. You can measure the data lines and see if they carry too high voltages, but that would usually fry the chip first.
