You said "all" your receptacles are dead.
Is the display on the microwave working? The microwave is plugged into a separate receptacle, typically is "not" on a GFIC, and has its own circuit breaker.
If the microwave display is lit up, then this helps tell that the 120 VAC shore is getting into the camper. If not, you may have an issue inside the power converter box not allowing the 120 VAC shore power to get to the branch circuits after you confirm the GFIC's are working.
As was stated, the kitchen receptacle can have its own GFIC, and the bathroom can have its own GFIC. If they are tripped, all circuits downstream of the bath and kitchen can also be dead, except the microwave, which may be on its separate circuit. Check them.
As to your power converter board getting hot and changing colors, this issue should be checked out by an electrical person trained in doing this. The power converter can go bad, more so as they get older. Odds are, the 120 VAC receptacle issue is not part of your power converter issue. They are separate topics.
Hope this helps
John
2005 Ford F350 Super Duty, 4x4; 6.8L V10 with 4.10 RA, 21,000 GCWR, 11,000 GVWR, upgraded 2 1/2" Towbeast Receiver. Hitched with a 1,700# Reese HP WD, HP Dual Cam to a 2004 Sunline Solaris T310R travel trailer.