29-0363 Posted June 1, 2009 Report Posted June 1, 2009 In a 1998 M20R I previously owned the KAP-150 has developed a fault where it can take an eternity to initialize after the Avionic Master is switched on. Normally the AP takes only a short time for the self test, but sometimes it can take 5-6 minutes before it initializes with multiple beeps, and enables the AP to be engaged. Any suggestions where to start looking?
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