Stevehd

3a fuse is where I assumed

There’s 12v going to the board ....so that points to bad board?

 No power between j4-j10

Display has no power on a dometic rm 3663 fridge.....I’m kinda lost to what to test next

here is what I have done

chk 12v terminal block for pwr ✅

chk 110 ac ✅

chk 5amp fuse ✅

chk 3 amp ✅

by passed control board .......heating element heated

fridge temp dropped to 33 degrees in few hours

chk displayed connection and all connection for good connections

am i right to think replace display circuit board?