Sony MDX-F5800 Operating Instructions Manual page 29

If these solutions do not help improve the
situation, consult your nearest Sony dealer.
Messages
L.SEEK +/–
The local seek mode is on during automatic
tuning (page 14).
NO AF
There is no altenative frequency for the current
station.
" " or "
You have reached the beginning or the end of
the disc and you cannot go any further.
"
29