Yamaha DSP-A990 Посібник з експлуатації - Сторінка 26

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1-4. ADJUSTMENT

MAIN/CENTER/EFFECT SPEAKER LEVEL BALANCE

ADJUSTMENT

This operation uses an internal test-tone generator for balancing

the levels of the main, center and effect speakers.

1. Depress the TEST switch on the remote control so that "TEST

DOLBY SUR." appears on the display panel to enter test mode. A

hiss-like calibration signal should be heard from the left main

speaker, center speaker(s), right main speaker and rear effect

speakers in turn (see diagram). Adjust the master VOLUME to a

normal listening level.

The state of test-tone output is shown by the display panel and

the monitor screen. (On the monitor screen, it is shown by an

image of audio listening room.) This is convenient for adjusting

each speaker level.

Left main

LEFT

2. Adjust the center and rear level by using the CENTER and REAR

LEVEL +/– keys on the remote control so that the sound coming from

the corresponding speakers seems to be at the same level as that

from the main speakers when you are at a normal listening position.

If there is insufficient volume from the effect speakers, you may

decrease the main speaker volume level by setting the MAIN LEVEL

switch on the rear panel to "–10 dB", and adjust the center and rear

level again. Volume controls on external power amplifiers may also

be adjusted if necessary to achieve proper balance.

Center

Right main

CENTER

RIGHT

Rear

SURROUND

3. For the front effect speaker level adjustment, depress the TEST

switch on the remote control again so that "TEST DSP" appears on

the display panel. A calibration signal should be heard from the main

speakers and the front effect speakers in turn (see diagram).

Main

MAIN

4. Adjust the front level by using the FRONT LEVEL +/– keys on the

remote control so that the speaker volume is the same as that of the

main speakers.

NOTE: If not using a center speaker, be sure to set the CENTER

MODE to the PHNTM (phantom) position.You will then hear the

center channel test tone from the left and right main speakers.

When this adjustment is finished, press the TEST switch once

again.

NOTE: Once you have completed these adjustments, use only

VOLUME control of this unit or MASTER VOLUME keys of the

remote control unit to adjust the whole listening volume. Do not

change any other volume setting in the system.

Front

FRONT