Uma kudingeka, ungazungezisa isikrini se-TV kwesokunxele noma kwesokudla 15“
Ukuze ubuke kangcono okuqukethwe kwe-TV, ungakwazi ukutshekisa isikrini se-TV phezulu +3° noma phansi -10°.
Ukulungiswa okuvundlile okuhle okungu-±3° kuyatholakala ukuze ileveli i-TV.