TOA Electronics DA-250FH CU Manual De Usuario
8
7. NOMENCLATURE AND FUNCTIONS
[Front]
1. Power switch [
ON/
OFF]
Power is switched on and off with each
depression of this switch.
depression of this switch.
2. Power indicator [POWER]
Lights blue when the power is switched on.
3. Input volume controls [CH 1 (BRIDGE 1), CH 2,
CH 3 (BRIDGE 2), CH 4]
Adjust the input volume of each channel.
Adjust the input volume of each channel.
When a bridge connection is made
• When Channels 1 and 2 are bridge-
• When Channels 1 and 2 are bridge-
connected (BRIDGE 1 ON/OFF button (9) is
set to ON), the CH 1/BRIDGE 1 volume
control adjusts the input volumes of Channels
1 and 2. In this event, the CH 2 volume
control cannot be used.
set to ON), the CH 1/BRIDGE 1 volume
control adjusts the input volumes of Channels
1 and 2. In this event, the CH 2 volume
control cannot be used.
• When Channels 3 and 4 are bridge-
connected (BRIDGE 2 ON/OFF button (9) is
set to ON), the CH 3/BRIDGE 2 control
adjusts the input volumes of Channels 3 and
4. In this event, the CH 4 volume control
cannot be used.
set to ON), the CH 3/BRIDGE 2 control
adjusts the input volumes of Channels 3 and
4. In this event, the CH 4 volume control
cannot be used.
4. Ventilation panel (Air Vent)
A filter is located inside the ventilation panel.
To clean the filter, remove the ventilation panel.
(See p. 15; Cleaning the Filter.)
To clean the filter, remove the ventilation panel.
(See p. 15; Cleaning the Filter.)
5. Indicators [INPUT, OUTPUT, PEAK, PROTECT]
The indicators are as follows from left to right:
• Input indicator [INPUT]
Lights green regardless of the input volume
control setting when an input signal level exceeds
about –20 dB.
Lights green regardless of the input volume
control setting when an input signal level exceeds
about –20 dB.
• Output indicator [OUTPUT]
Lights yellow when an output level exceeds about
1W at an 8
Lights yellow when an output level exceeds about
1W at an 8
Ω load (DA-250F) or 19.6 Ω load (DA-
250FH).
• Peak indicator [PEAK]
Lights red when an output signal clips (distortion
occurs).
Lights red when an output signal clips (distortion
occurs).
• Protection indicator [PROTECT]
Lights red when the protection circuitry is
activated. (See p. 14; Protection Operation List.)
When the power is switched on, this indicator
lights for about 2 seconds and then extinguishes.
Lights red when the protection circuitry is
activated. (See p. 14; Protection Operation List.)
When the power is switched on, this indicator
lights for about 2 seconds and then extinguishes.
1
2
4
3
5
Note: The figure shows the DA-250F.