4 Advanced Operation
4.2 Navigating the LCD Control Screen4.2.1 IntroductionThe LCD Control Screen and its controls let you configure the ampli- fier and access many features that before were available only through a remote computer. Also, you can recall DSP presets for certain loud- speaker models. (Some DSP parameters cannot be adjusted with the LCD Control Screen. That is done in System Architect or IQwic.)
Figure 4.1 shows the parts of the LCD Control Screen. Its functions are described below. NOTE: Listed functions can also be controlled in System Architect or IQwic. The
Figure 4.1 Parts of the LCD Control Screen
Attenuation and Bar Meters
On
If Attenuator Limits have been set (in the Attenuator Limits screen, described later), small lines showing those limits will appear in the bar meters as shown. If the attenuators for both channels are linked (in the Attenuator Link screen, described later), the word LINK appears. If there is an error in the error log, an exclamation point appears at bottom center.
Attenuation Preset 12 (M)
-23.0 dB -23.0
Operation Manual
Mute/Unmute
• To mute either channel: Press and hold an Encoder knob for
1 second. The display will alternate between MUTE and the attenua- tion level. While the amplifier is muted, you can adjust attentuation for each channel by turning an Encoder knob.
•To unmute either channel: Press and hold an Encoder knob again for 1 second.
The (M) is explained on page 18 under Presets.
Attenuation Preset 1 (M)
MUTE dB -16.5
Front Panel Lockout
The amplifier’s administrator can control access to menu mode and the amplifier’s attenuators. This lockout can be done either by the front panel buttons or by System Architect or IQ software.
To lock or unlock the menu with the
If the lockout is done from the software, the user can disable the lockout only in the software, not by pressing the
If the menu is locked and you press any button or turn an Encoder, the word “LOCKED” is displayed.
4.2.2 BASIC MENUGetting around in the Menu is intuitive. Here are the basic opera- tions:
•Press Menu/Exit to enter the main menu.
•Press Next to go to the next item in the menu.
•Press Prev to go to the previous item in the menu.
•Turn or press either Encoder knob to change the value of the dis- played parameter.
•Press Menu/Exit to leave the menu and return to the Attenuation screen at any time.
Some menu items require confirmation: after you request a change, the display might say “Press and hold.” To confirm a change, press and hold an Encoder knob. If you don't want the change to occur during a confirmation, turn the knob or wait five seconds.
Basic Menu Items
Contrast: Press Menu/Exit to enter the Basic Menu. The first item on the menu you see is the Contrast screen. Turn an Encoder knob to change the contrast of the LCD screen. You can return to the Attenuation screen by pressing Menu/Exit, or go to other menu items by pressing Next or Prev.
CH1 Sensitivity: Sets the input sensitivity of Channel 1. Turn an Encoder knob to change the input sensitivity.
Note: If you do not see the sensitivity you need, try changing the Maximum Analog Input level in the Advanced Features Menu (described later). This makes different sensitivities available.
To optimize the system gain structure, see Section 3.1 in the
CH1 Sensitivity
5.4826.0
| RMS Volts | dB Gain |
CH2 Sensitivity: Sets the input sensitivity of Channel 2. Turn an Encoder knob to change the input sensitivity. (This screen will not display in Bridge Mono mode).
Note: If you do not see the sensitivity you need, try changing the Maximum Analog Input level in the Advanced Features Menu (described later). This makes different sensitivities available.
CH2 Sensitivity
2.7831.9
RMS Volts | dB Gain | |
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