Corolla_MATRIX_Navi_U (L/O 0405)
111
2005 MATRIX Navigation from May. ’04 Prod. (OM12820U)
NOTICE
To ensure the correct audio system
operation:
Be careful not to spill beverages
over the audio system.
Do not put anything other than a
Compact Disc into the slot.
The use of cellular phone inside or
near the vehicle may cause a noise
from the speakers of the audio
system which you are listening to.
However, this does not indicate a
malfunction.
RADIO RECEPTION
Usually, a problem with radio reception
does not mean there is a problem with
your radio—it is just the normal result of
conditions outside the vehicle.
For example, nearby buildings and terrain
can interfere with FM reception. Power
lines or telephone wires can interfere with
AM signals. And of course, radio signals
have a limited range. The farther you are
from a station, the weaker its signal will
be. In addition, reception conditions
change constantly as your vehicle moves.Here are some common reception prob-
lems that probably do not indicate a
problem with your radio:
FM
Fading and drifting stations—Generally,
the effective range of FM is about 40 km
(25 miles). Once outside this range, you
may notice fading and drifting, which in-
crease with the distance from the radio
transmitter. They are often accompanied
by distortion.
Multi−path—FM signals are reflective,
making it possible for two signals to
reach your antenna at the same time. If
this happens, the signals will cancel each
other out, causing a momentary flutter or
loss of reception.
Static and fluttering—These occur when
signals are blocked by buildings, trees, or
other large objects. Increasing the bass
level may reduce static and fluttering.
Station swapping—If the FM signal you
are listening to is interrupted or weak-
ened, and there is another strong station
nearby on the FM band, your radio may
tune in the second station until the origi-
nal signal can be picked up again.AM
Fading—AM broadcasts are reflected by
the upper atmosphere—especially at
night. These reflected signals can inter-
fere with those received directly from the
radio station, causing the radio station to
sound alternately strong and weak.
Station interference—When a reflected
signal and a signal received directly from
a radio station are very nearly the same
frequency, they can interfere with each
other, making it difficult to hear the
broadcast.
Static—AM is easily affected by external
sources of electrical noise, such as high
tension power lines, lightening, or electri-
cal motors. This results in static.
Car audio system operating
hints
