My setup looks like this
The F-Female connections seem to pretty resistant to corrosion.. Can't remember ever seeing one with corrosion...
The screws on mine are just wood type screws (no nuts or washers on the other side) and when removed you can just pull the whole assembly out and pull out the two RG cables away from the wall. You will have to reseal using dicor when you put it back... 2-minute job...
You might want to go to LOWES or AMAZON and buy a whole new assy if you like. The F-connectors on my setup are just adapters. When you pull the assy out you can see the Male F connector on the end of the Rg cable and you just unscrew that to remove the whole assembly... Be sure to note which side goes to CABLE and SAT...
Some other installation may be different but this is how my 5th wheel and OFF-ROAD Trailer is setup.
I actually Installed a second same assy and changed the two F-Adapters Connectors for Ham radio Type UHF Connectors that I use for outside Ham Radio setups... Access to the other side of this area was behind a removable panel so no problem adding a couple of new holes for the new RG cables.
Just an ADDED NOTE: If this is what you are using and you are getting a weak signal when being hooked to CABLE at a Campground hookup. Have you been making sure the ANTENNA PANEL BUTTON is OFF. This is the button that applies 12VDC to your roof mounted BATWING antenna preamplifier when you are using the OTA roof mounted antenna. If your small green or red led on the panel is ON you need to turn that OFF when using the CABLE INPUT.
Roy Ken
My Posts are IMHO based on my experiences - Words in CAPS does not mean I am shouting
Roy - Carolyn
RETIRED DOAF/DON/DOD/CONTR RADIO TECH (42yrs)
K9PHT (Since 1957) 146.52M
2010 F150, 5.4,3:73 Gears,SCab
2008 Starcraft 14RT EU2000i GEN
2005 Flagstaff 8528RESS