Audiolab DQX-7200 Manual Del Usuario página 11

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Operation Rear Panel
The corresponding LED will light up when the input signal exceeds
-32dB, -20 dB and 10dB. If the signal LED does not light up, please
check the gain setting, the input connections, the signal audio source
and whether the output line is short circuit. If the Signal 20dB or
Signal LED
-10dB Led illuminates with no signal input, there may be ystem
oscillations or some other malfunction. Disconnect the load and
fully reduce the gain. If the LED remains on, shows that the amplifier
needs servicing.
The maximum voltage gain of the amplifier varies depending on the
model is shown of the designation. The gain controls are marked in
dB of attenuation. There are 21 detents for repeatable adjustments.
Gain
The upper 14 steps are about 1dB each, and settings should not be
Control
used for normal program levels, as the input headroom could be
exceeded, but can be used for testing at reduced levels. At the mini-
mum setting, the signal is completely cut off.
Power on, LED will illuminate green. If no indication, please check
Power LED
whether the AC power cord or AC outlet is unusual or not.
Thermal
It will light up when the amplifier overheats.
LED
Bridge
Bridge mode, Mono mode.
Mono
It will light up red to indicate that protection is in effect. To provide
protection, the unit will not output any sound from the speakers
while this indicator is lit up. It will light up if the heat sink aberheats,
Fault LED
or if a DC voltage is detected at the amplifier outputs. Also it will light
up for about a few seconds at time of power-on, as the amplifier gets
ready to operate.
Power
Switch on ad off the power supply. It will light up green when switch
switch
on.
P. 11
- AUDIOLAB DQX-7200
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