The first place I would look is in either of these two door locations that are below the Fridge or the Oven...
Other Eagle units are definitely under the OVEN... The converter/charger units usually have a fan associated with it that comes on/off to keep its electronics cool. Listen for the sounds.
Another possible place might be behind these dark panels that are mounted high in your kitchen area. They look to be vents of some sort and could be your Power Distribution Panels which usually houses the converter/charger chassis as well. These units require alot of 120VAC and 12VDC cabling associated with them and most likely will mounted near the trailer floor areas. I did see a good photo of the pass-through storage in this series of photos from google search and did not see any possible black chassis's installed on the walls there. Just start listening for the fan sounds and start opening some cabinet doors...
The BLACK looking panel here next to your steps appears to be the unit I am searching for - I finally found this shot. Behind this vent looking door should be your converter/charger unit...
If all fails JAYCO is great company for replying back to questions... Give them a call along with your VIN NUMBER and ask...
Roy Ken