---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Sat 04/25/09: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:37 PM - Re: Avionics cooling fans - yea or nay?? (jetboy) ________________________________ Message 1 _____________________________________ Time: 04:37:56 PM PST US Subject: Avionics-List: Re: Avionics cooling fans - yea or nay?? From: "jetboy" 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 -------- Ralph - CH701 / 2200a Read this topic online here: http://forums.matronics.com/viewtopic.php?p=241259#241259 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message avionics-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Avionics-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/avionics-list Browse Digests http://www.matronics.com/digest/avionics-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.