- AP Mother board heating up
Re: AP Mother board heating up
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Thanks Joe ,
Will keep an eye
On 15-Feb-2017, at 12:56 AM, 'Joseph Zeglinski' J.Zeglinski@...
Hope you find the cause of any “OVER” heating, but there
is a positive benefit from some slight heating inside its case, such as you
found in the motherboard’s idle mode. When you had to operate the mount
controller at your recent high altitude site, at night and –20C, at least the
quiescent heating kept the internal electronics operating in their normal room
temperature state. Other electronics might have shut down in such cold.
Don’t recall if there is any provision to completely
idle the (DEC) servo motor, but I assume it keeps itself warm by just its motor
coils doing “station-keeping”. Of course, the RA servo is always tracking so it
shouldn’t get sluggish even in very extreme cold.
I assume the gear lubricants are in good condition.
Perhaps a short blast of a suitable dry silicone spray directly on the worm and
its worm wheel might indicate some improvement in tests. Even the AeroSHELL-33
oil “separates out” from its binding with the lube grease component,
after aging 4 years – the warranty period for that product fresh grease. Not
likely the cause here, but your operating or storage environmental conditions
may have pushed the limits. However this is stretch, as this is “aircraft lube”,
is designed for flying in high altitude cold and desert heat.
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