---------------------------------------------------------- AeroElectric-List Digest Archive --- Total Messages Posted Mon 08/02/04: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:18 PM - Trim switch wiring (Bryan Flood) 2. 05:41 PM - Re: Trim switch wiring (Bruce Gray) 3. 05:59 PM - King CDI (David A. Leonard) 4. 06:18 PM - Re: King CDI (Charlie England) ________________________________ Message 1 _____________________________________ Time: 05:18:19 PM PST US From: "Bryan Flood" Subject: AeroElectric-List: Trim switch wiring --> AeroElectric-List message posted by: "Bryan Flood" Could anyone share a diagram for wiring two trim switches together for a single RC Allen servo (Pilot / Co-Pilot)? To make things fun, I was also hoping to use a dual switch "fail safe" system like the big boys to prevent a run away trim in case of a switch failure. any one up for that challange? Thanks, Bryan Discover the best of the best at MSN Luxury Living. http://lexus.msn.com/ ________________________________ Message 2 _____________________________________ Time: 05:41:44 PM PST US From: "Bruce Gray" Subject: RE: AeroElectric-List: Trim switch wiring --> AeroElectric-List message posted by: "Bruce Gray" Try, http://www.aeroelectric.com/articles/Pilot_Priority_B.pdf Bruce www.glasair.org -----Original Message----- From: owner-aeroelectric-list-server@matronics.com [mailto:owner-aeroelectric-list-server@matronics.com] On Behalf Of Bryan Flood Subject: AeroElectric-List: Trim switch wiring --> AeroElectric-List message posted by: "Bryan Flood" Could anyone share a diagram for wiring two trim switches together for a single RC Allen servo (Pilot / Co-Pilot)? To make things fun, I was also hoping to use a dual switch "fail safe" system like the big boys to prevent a run away trim in case of a switch failure. any one up for that challange? Thanks, Bryan Discover the best of the best at MSN Luxury Living. http://lexus.msn.com/ == == == == ________________________________ Message 3 _____________________________________ Time: 05:59:12 PM PST US From: "David A. Leonard" Subject: AeroElectric-List: King CDI --> AeroElectric-List message posted by: "David A. Leonard" I have a King CDI localizer head, I think it may be a KI-201 It was the head for a kx 170a, replaced the radio with a michel MX170 , which seems to be a pretty good radio, despite a few idiosyncracies. Last week I was shooting an ILS (this is my back up head, the main GS head seems to be working, ) and I noticed that the Localizer needle was not behaving like the one on Nav1 KX170b, with GS. It just stays centered, and I don't fly that good an approach! I have tried these steps to trouble shoot. 1. disconnected the head, and cleaned the contacts with Caig De-oxit 2 Removed the radio, and cleaned the tray connectors with De-oxit as well. 3I took the kx 170 b and the MX 170 units out, and switched them. The Michel seems to drive the Nav 1 head just fine, the KX 170b will not affect the localizer needle whatsoever on the #2 CDI, so I am assuming the radios are functional, and the CDI is busted. Both radios will tune and identify the ILS frequency, in either position of the trays. The reason I bought the Michel, is that it fits right into a King tray. This saved much Moola at the avionics shop! It seems to me the localizer CDI head is pooched, It does not show a "to" flag. When you turn on the radio that is hooked to it (either the kX or the mx) the needle jumps to the left a couple of dots, then returns to center. Wiggling the tray or the head connector seems to have no effect. Can anyone suggest the next thing to do? take it out and send it to a shop? I really can't see putting a lot of cash into a head that is vintage '72 low end CDI head. I think a CDI is a bunch of money, and I use my Garmin 295 for most of the heavy duty navigation anyway. This is in my Super Viking, but I'm not opposed to working on it myself..too numb to be scared I guess! Thanks, David Leonard I ________________________________ Message 4 _____________________________________ Time: 06:18:23 PM PST US From: Charlie England Subject: Re: AeroElectric-List: King CDI --> AeroElectric-List message posted by: Charlie England David A. Leonard wrote: >--> AeroElectric-List message posted by: "David A. Leonard" > >I have a King CDI localizer head, I think it may be a KI-201 It was the >head for a kx 170a, replaced the radio with a michel MX170 , which seems to >be a pretty good radio, despite a few idiosyncracies. Last week I was >shooting an ILS (this is my back up head, the main GS head seems to be >working, ) and I noticed that the Localizer needle was not behaving like >the one on Nav1 KX170b, with GS. It just stays centered, and I don't fly >that good an approach! > >I have tried these steps to trouble shoot. >1. disconnected the head, and cleaned the contacts with Caig De-oxit >2 Removed the radio, and cleaned the tray connectors with De-oxit as well. > >3I took the kx 170 b and the MX 170 units out, and switched them. The >Michel seems to drive the Nav 1 head just fine, the KX 170b will not >affect the localizer needle whatsoever on the #2 CDI, so I am assuming the >radios are functional, and the CDI is busted. > >Both radios will tune and identify the ILS frequency, in either position of >the trays. > >The reason I bought the Michel, is that it fits right into a King >tray. This saved much Moola at the avionics shop! > >It seems to me the localizer CDI head is pooched, It does not show a "to" >flag. > >When you turn on the radio that is hooked to it (either the kX or the mx) >the needle jumps to the left a couple of dots, then returns to >center. Wiggling the tray or the head connector seems to have no effect. > > >Can anyone suggest the next thing to do? take it out and send it to a shop? > >I really can't see putting a lot of cash into a head that is vintage '72 >low end CDI head. I think a CDI is a bunch of money, and I use my Garmin >295 for most of the heavy duty navigation anyway. > >This is in my Super Viking, but I'm not opposed to working on it >myself..too numb to be scared I guess! > >Thanks, David Leonard > If the 2 heads are plug-compatible, you could swap the heads in the panel to be sure the wiring between the radio tray & head connector is ok. Assuming the known-good head responds properly in the 'bad' position, then it's probably time for repair/replace. Charlie