No I didn't. I will try it. The g3x manual just has you wire the pmag directly to those pins since the pmag s already outputting a 12v square wave off the tach pin. I did just try putting the diode into the pmag to drop it to 5v square wave with no luck.I assume you are using the GEA 24 EIS module?
Did you include the 820K ohm resistor that is normally used with a standard mag?
Carl
My current software is 2.72 I believe. The only options are p lead pickup with 1 or two leads, and the uma magnetic pickups. Uma instruments says they can make me a tach drive sensor that would work like the magneto pickup. So I might go that route. Garmin said the only options that will work are the two mentioned above.In the GI275 look again at the set up pages - there are many of them. You must specify what signal is being received.
I can't remember exactly what the settings are. Do you have the latest software loaded - v 3.10 I believe?
Are you sure you are refering to the gi275? Not the g3x?In the GI275 look again at the set up pages - there are many of them. You must specify what signal is being received.
I can't remember exactly what the settings are. Do you have the latest software loaded - v 3.10 I believe?
With the gea24? And two pmags?GI275, I loaded v3.10 in one a couple of days ago.
There are many, many set-up pages as the screen is only small and its a very capable device.
I misquoted the software version. It's 2.42. I have tried all the iterations of mag sensor, plead, ect in the setup menu. My unit is p/n 011-04489-00Garmin have just release v3.20, it looks like your s/w is over a year old. As far as I'm aware there is only one s/w load for all GI275s. Get an update from whoever you bought the instrument from, it goes in via the USB socket. The tach line from the Pmags goes into GEA 24 P243 pins 6 & 8. Have you configured the GEA 24 in the Interfaces page? Have you told the sensors page that 2 mags are inputting (see section 5.7.2). System Info -> Devices Online (green check), EIS -> Sensors. If you have selected P-Lead, try Mag Vent Pickup. The 275 is focussed on certified aircraft so experimental options are not always obvious. Set up is complex/tedious because of the small display.
I can't find s/w 2.72 on the download page, it went from 2.60 straight to 3.01 in August last year. What is the part no of your 275, for example 010-02325-00?