Airtronics RD 6000 ......help!
I recently purchased a RD 6000 from an estate sale...It is reported to be new and unused will all other items no longer available....Just the Tx and manual....Problem...I turned it on and the battery was dead...Charged it 24 hours and got a 2/3 charge...charged it 12 more hours to get full charge....During all of this and now......The radio has an alarm going off.... beep beep...I can not get it to stop...The display shows ID-UP! and TH-Hi!...I can switch between them with the flight mode switch located in upper corners....What is wrong and how do I correct this situation...The radio did not have a crystal when I purchased it but has an FM crystal now...Could that be the problem....The display is showing Heli 3 ..........Richard