Aiwa XH-A1000 Operating Instructions Manual page 26

2 Press MANUAL SELECT and hold it down for
about 4 seconds until "L" flashes.
A noise signal is sent to each channel in turn in the following
sequence.
ie Left speaker —-> CEN: Centre speaker —->R: Right speaker 7
S-L: Left surround speaker «— $-R: Right surround speaker-
3 Adjust the sound level of the centre and the
surround speakers.
While "CEN", "S-R" or "S-L' is displayed, press << or BP to
adjust the volume of the centre or surround speakers to match
the level of the left and right speakers.
To adjust the balance between the left and right front speakers,
see page 11.
4 Press MANUAL SELECT again to stop the noise
signal.
¢ lf the surround speakers or the centre speaker level of the
DOLBY PRO LOGIC is changed, that of the DSP SURROUND
system (page 13) and the DOLBY DIGITAL SURROUND (page
27) is also changed.
¢ While "S-R" or "S-L' is displayed, both surround speakers output
the noise signal together. However, only the sound level of one
surround speaker displayed as "S-R" or "S-L' can be adjusted.
¢ When the sequencer outputs a noise signal, a clicking sound
might be heard from the speakers due to the characteristics of
the circuit. This is not malfunction.
About the channels
The left and right speakers create the stereo effect.
The centre speaker helps achieve precise sound positioning
over a broad sound field.
The surround speakers enhance the "depth" of the sound field.
To change the delay time
The surround speakers reproduce sounds a split second after
the front speakers. The delay is initially set to 20 ms (milliseconds).
To change this standard delay time, press MANUAL SELECT
on the remote control repeatedly in NORMAL or PHANTOM mode
until "TIME" is displayed. Then, press the <4 or BR. Each time
one of the buttons is pressed, the delay time changes as shown
below.
15ms <>» 20ms <> 30ms
26
MANUAL
SELECT
<<, >>
1 Press VIDEO 1/2/3 or AUX/PHONO/5.1CH. Then
start playback of the video source.
2 Press DOLBY PRO LOGIC.
NORMAL is selected, and the playback sound has the DOLBY
PRO LOGIC effect.
To cancel DOLBY PRO LOGIC mode
Press DOLBY PRO LOGIC repeatedly until "OFF" is displayed.
To change the sound levels during playback
After adjusting the balance with the noise sequencer, the sound
levels of the centre or surround speakers can be adjusted during
playback of laser discs or video software.
1 Press MANUAL SELECT on the remote control repeatedly
to select "CEN" (centre), "S-R" (surround right) or "S-L'
(surround left).
2 While the "CEN", "S-R" or "S-L' is displayed, press << or
PP on the remote control to adjust the volume.