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1. 04:37 PM - Re: Avionics cooling fans - yea or nay?? (jetboy)
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Subject: | Re: Avionics cooling fans - yea or nay?? |
Its unlikely that heat will cause both items to fail. You didnt say what aircraft
it is or what other equipment is stacked below your problem gear, or what climate
you are operating in.
LCD displays normally freeze when it is cold, go dark when they are too hot. Digital
electronics can halt from operating this is more often associated with bad
design bugs (these devices are the ones that the manufacturer has belatedly
required fitting of a large capacitor to the supply leads, a separate power master
switch, or both), humidity, bad power supply such as a neglected battery,
surges in the charging system, or just turning it off and on a dozen times when
you start the plane.
If you think it is overheating, buy a small indoor/outdoor digital thermometer
and tape the probes to the rear of the devices. check against the TSO data or
manufacturers recommendations 50 deg C or 120 F should be acceptable.
Ralph
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Ralph - CH701 / 2200a
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