Datasat XD20, Инструкция по установке и эксплуатации

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XD20 Installation and Operating Guide Version 1.1
Document # 9301H264001.1 68
7.2.1. Level Adjustment
This menu is the first in a series of menus for setting the XD20 audio output level.
Setup
→
Audio
→
Level Adjustment
Reference Tone Play 1 kHz reference tone on all channels for adjusting the level.
Pink Noise Play pink noise on the current channel for adjusting the level.
Select either Reference Tone or Pink Noise to use the level adjustment menu. Reference tone is a 1 kHz
test tone that has been preset at 300mV RMS when the output is set to 0.0 dB. This is what most cinema
processors suggest for input. Alternatively, Pink Noise may be used to verify level outputs on the XD20.
It is played only on the channel chosen for adjustment. The level adjustments are made the same,
regardless of whether you are using the reference tone or pink noise selection. The pink noise for the Sub
bass channel is not bandwidth limited.
For example, if you select Reference Tone for the left channel (Ch. 1), the following message will appear
on the XD20 status display.
Setup
→
Audio
→
Reference Tone or Pink Noise
▲ Increase level for selected channel. Maximum is +6.0 dB, except for Left
Surr and Right Surr, which are +3.0 dB. Increments are 0.5 dB.
▼ Decrease level for selected channel. Minimum is -6.0 dB. Increments are
0.5 dB.
► or Enter Previous channel or return to Level Adjust menu. If playing pink noise, it
will follow the current channel.
◄ Next channel or return to Level Adjust menu. If playing pink noise, it will
follow the current channel.
Table 11: Channel Sequence
Note: When 1K tone is selected, all channels will play.
When Pink Noise is selected, only the channel selected
will play. Any adjustments made in either test menu will
change the other.
Channel # Channel Name
1 Left
2 Right
3 Center
4 Sub Bass
5 Left Surr
6 Right Surr
7 Left Center
8 Right Center
9 Narration