Toyota 4Runner Navigation Operating Manual page 132

AUDIO SYSTEM
(g) If the player malfunctions
If "CD ERROR" appears on the screen, audio
signals of the disc cannot be read or the sys-
tem has trouble. Push the "DISC" button once
again.
If the player does not operate, check that the
disc surface is not soiled or damaged. If the
disc is O.K., the temperature of the player's
internal mechanism may be raised because
of high external temperature. Remove the
disc from the player to cool it.
If the player still does not operate, have it
checked by your dealer.
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05 4RUNNER NAVI_U (L/O 0408)
Audio system operating hints
NOTICE
To ensure correct audio system opera-
tions:
D Be careful not to spill beverages over
the audio system.
D Do not put anything other than a
Compact Disc into the slot.
D The use of a cellular phone inside or
near the vehicle may cause a noise
from the speakers of the audio sys-
tem which you are listening to. How-
ever, this does not indicate a mal-
function.
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 sig-
nals. And of course, radio signals have a lim-
ited range. The farther you are from a station,
the weaker its signal will be. In addition, re-
ception conditions change constantly as your
vehicle moves.
Here are some common reception problems
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 no-
tice fading and drifting, which increase with
the distance from the radio transmitter. They
are often accompanied by distortion.
Multi-path — FM signals are reflective, mak-
ing it possible for two signals to reach your an-
tenna 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 sig-
nals are blocked by buildings, trees, or other
large objects. Increasing the bass level may
reduce static and fluttering.