JPI EDM 790 Upgrade - Anyone done it?

[wslade2]

Ditto. I also have 790. I thought I could slide it in in a mirror position of your 760 on the copilot side, bottom left where there was a second altimeter. But when it arrived, screen to big. Likewise I ended up putting it in center stack lowest position. Your location too tight for the offset screen.

You could move your OAT and put it there. Or use the 790 to replace the OAT; it has an OAT function

[mshac]

Originally Posted by wslade2

Ditto. I also have 790. I thought I could slide it in in a mirror position of your 760 on the copilot side, bottom left where there was a second altimeter. But when it arrived, screen to big. Likewise I ended up putting it in center stack lowest position. Your location too tight for the offset screen.

You could move your OAT and put it there. Or use the 790 to replace the OAT; it has an OAT function

That's not a bad suggestion. Not an ideal sight line, but the original OAT gauge hasn't been super reliable, and if the EDM has an OAT, then that would be a good replacement. I don't currently have OAT on my 760, maybe its not enabled?

So then what to put into the empty hole where the 760 was? A G5 maybe?

[Multimotor]

Beautiful panel.

Can you move your autopilot control to the current 760 spot? It would help if it could be surface mounted, but it looks like there is an adapter plate there, anyway. That'll give you plenty of room if you're going to abandon your current OAT gauge. OAT is an option in the 760/790. My transponder has OAT, so I saved $195 by not ordering it for the 790.

That's still not the ideal position, but your choices are limited. I don't think enlarging the OAT hole will help.

At any rate, I recommend you look at the installation manual and make a template before committing. The case can be mounted upside down, depending on how you want the offset, then the display can be rotated with some button pushing.

[mshac]

Originally Posted by Multimotor

Beautiful panel.

Can you move your autopilot control to the current 760 spot? It would help if it could be surface mounted, but it looks like there is an adapter plate there, anyway. That'll give you plenty of room if you're going to abandon your current OAT gauge. OAT is an option in the 760/790. My transponder has OAT, so I saved $195 by not ordering it for the 790.

That's still not the ideal position, but your choices are limited. I don't think enlarging the OAT hole will help.

At any rate, I recommend you look at the installation manual and make a template before committing. The case can be mounted upside down, depending on how you want the offset, then the display can be rotated with some button pushing.

Thanks, I really like this idea. Not sure what the costs would be to move the STEC 60-2 control head, but I scan that frequently to be certain I'm the correct AP mode (Heading, NAV, VS, Soft Capture, ALT, Approach, Ready, etc) so it being closer to the six-pack makes sense. I'll get a template made and see if the EDM 790 fits where the OAT & AP head were. I'm pretty sure it will.

Again, thanks for the great idea!

[Multimotor]

You're welcome.

BTW, my checkout instructor recommended that I move the cowl flap switches back to neutral after use, just in case a motor keeps running.

[kbecker]

I learned this cowl flap lesson the hard way by burning out my front cowl flap motor years ago because one of the limit switches was mis-adjusted.

[mshac]

Originally Posted by Multimotor

You're welcome.

BTW, my checkout instructor recommended that I move the cowl flap switches back to neutral after use, just in case a motor keeps running.

Thanks, I'll have to add that to my homebrew checklist! Maybe even add a small placard "Return Cowl Flap Switches to Neutral". Perfect area right above the switches.

I do check the operation of the cowl flap motors on a regular basis, but you never know when a switch may come out of alignment or just plain fail. Had to throw away a favorite keyboard recently because a couple keys weren't working. Switches don't last forever!