Return-Path: Received: from [161.88.255.140] (account marv@lancaironline.net) by logan.com (CommuniGate Pro WebUser 4.3c1) with HTTP id 720512 for lml@lancaironline.net; Tue, 08 Feb 2005 12:26:32 -0500 From: "Marvin Kaye" Subject: Re: Chelton/Sierra Problem To: lml X-Mailer: CommuniGate Pro WebUser Interface v.4.3c1 Date: Tue, 08 Feb 2005 12:26:32 -0500 Message-ID: In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-1"; format="flowed" Content-Transfer-Encoding: 8bit Posted for YoSamuel@aol.com: I may have a unique problem with my Chelton EFIS. The voice that tells you "check engine", "terrain terrain" etc. is so quiet in flight that I can bearly hear it. On the ground before engine start, the voice volume is normal. I am running the latest software in which the volume control is not functional. I do hear the tone that alerts for cautions in flight better, but it too could be at a higher volume. I'm told that the tone and the voice emminate from the same chip and of course use the same wires. My audio panel is the Garmin 340. The pins from the Chelton to the Garmin check out to the correct unmuted position. The wires show very small impedance, about .4 ohms. We have tried alternate Chelton boxes, Garmin 340's and headsets. All to no avail. Any ideas? Thanks. Dave Link. [ 5.x software on an IDU1 (exp) screen is locked at max vol... the IDU3 (cert) boxes have more and louder voice alerts. What I do is crank the headset amp to the max, and lower the vol on the radio and intercom and I can hear the IDU1 fine, but boy, when the monroy traffic alerter kick in, I get quite a jump :-) -Rob ]