I have a 1991 34' Limited Travel Trailer. I'd like to modify and calibrate the monitor panel to the extent that I can. For example, I plan to add digital AC and DC voltmeters and calibrate the Black/Grey/Fresh water indicators as well as possible. The information in my owner's manual says that there are minature adjustment pots for each of these three indicators, but I don't see them on the exterior. Do you know if I need to take the front cover off to get access? I'd like to get a manual of some sort on this panel if I could. Here's a picture (sorry for the poor quality...taken as the sun was going down with my cell phone). Also, does anyone know of a thread on these things. I've tried search several times, to no avail!
Thanks in advance,