[Richard Crowley]

wrote ...
i have a technics sa-gx190 receiver, and it's worked perfectly for 13
years. today, i turned it on and discovered the word "LOUDNESS" on the
LCD screen. i have no idea how "loudness" got turned on...i didn't
even know this receiver had a "loudness" feature (according to my
research, it doesn't!). there is no "loudness" button on the unit or
the original remote. now i can't figure out how to turn it off. i know
it's a silly issue that doesn't really matter...but it's strange. does
anyone know anything about this?

Sounds like typical geriatric LCD symptoms.