Pioneer AVH-P3400DVD - Manual (Page 55)

! If the microphone is placed in an unsuitable
position the measurement tone may become
loud and measurement may take a long time,
resulting in battery drainage. Be sure to place
the microphone in the specified location.
Before operating the auto TA and EQ
function
! Perform auto TA and EQ in a quiet place,
with both the car engine and air condition-
ing switched off. Also turn off any car
phones or portable telephones in the car, or
remove them from the car. Sounds other
than the measurement tone (such as sur-
rounding sounds, engine sound, tele-
phones ringing) may prevent correct
measurement of the car
’s interior acoustic
characteristics.
! Be sure to perform auto TA and EQ using
the optional microphone. Using another
microphone may prevent measurement, or
result in incorrect measurement of the
car
’s interior acoustic characteristics.
! In order to perform auto TA and EQ, the
front speaker must be connected.
! When this unit is connected to a power
amp with input level control, auto TA and
EQ may not be possible if the power amp
’s
input level is set below the standard level.
! When this unit is connected to a power
amp with an LPF, turn this LPF off before
performing auto TA and EQ. Also set the
cut-off frequency for the built-in LPF of an
active subwoofer to the highest frequency.
! The time alignment value resulting from
auto TA and EQ has been calculated by a
computer and is the optimum delay time
that will give accurate results. Be sure to
use the resulting value although it may dif-
fer from the actual distance when:
— The reflected sound within the car is
strong and delays occur.
— The LPF on active subwoofers or exter-
nal amps delay the lower sounds.
! Auto TA and EQ changes the audio settings
as follows:
— The fader/balance settings return to the
center position. (Refer to Using fader/
balance adjustment on page 47.)
— The equalizer curve switches to Flat.
(Refer to Recalling equalizer curves on
page 44.)
— The front, center and rear speakers will
automatically be adjusted to a high
pass filter setting.
! Previous settings for auto TA and EQ will be
overwritten.
Performing auto TA and EQ
For details concerning operation, refer to the
operation manual for the multi-channel pro-
cessor.
1 Stop the car in a place that is quiet,
close all the doors, windows and sun roof,
and then turn the engine off.
If the engine is left running, engine noise may
prevent correct auto EQ.
2 Fix the optional microphone in the cen-
ter of the headrest of the driver
’s seat, fa-
cing forward.
The auto EQ may differ depending on where
you place the microphone. If desired, place
the microphone on the front passenger seat to
carry out auto EQ.
3 Turn the ignition switch to ON or ACC.
If the car
’s air conditioner or heater is turned
on, turn it off. Noise from the fan in the air
conditioner or heater may prevent correct auto
EQ.
En
55
Section
12
Menu
operations
Menu operations