Pioneer DEH-P9400MP Operation Manual page 15

B
This product's display features key guidance
indicators. These light to indicate which of the
uttons you can use). When you're in
menu; audio menu or the other
they also make it easy to see which
uttons you can use to switch func-
tions on/off, switch repeat selections and per-
form other operations.
Key guidance indicators
0 In this manual, operation for each mode is given
mainly in terms of the multi-function buttons.
However, in each mode, when the key guidance
indicators are lit it is also possible to use r/r/
to operate the mode.