Dynacord L1600 Manual del usuario - Página 12

Navegue en línea o descargue pdf Manual del usuario para Amplificador Dynacord L1600. Dynacord L1600 20 páginas. Linear precision power amplifiers

FRONT PANEL

1. Level Control

Calibrated detented potentiometers to alter the total gain of the power ampliﬁ er. In order to avoid

distortions in mixing consoles upstream, these controls should normally be positioned between 0 dB

and -6 dB. The calibrated markings show the additional attenuation directly.

2. Power ON indication

This LED lights up when the mains switch is pressed. If it does not light up, the unit is not connected to

the mains or the mains fuse has blown.

3. Input indication

This LED lights up if a signal is present at the power ampliﬁ er input. The indicator does not light up

when the input controls are turned down completely.

4. Output indication

This LED lights up if a signal is present at the power ampliﬁ er output. The indicator goes off when the

speaker line has shorted or a protective circuit has been activated thus indicating that there is no signal

at the speaker output terminals.

5. LIMIT

This LED lights up if the limiter has been activated and the power ampliﬁ er is being operated at the clip

level. If the LED ﬂ ashes brieﬂ y, this is not a cause for concern. If this LED is lit permanently, the volume

should be reduced to avoid overload damages to the connected loudspeaker systems.

6. PROTECT

When this LED lights up during operation, one of the protection circuits against over-temperature,

overload, shorted outputs, radio frequency interference or DC faults has been triggered. The cause of

the error e.g. a shorted loudspeaker line must be remedied. In case of overheating, wait a little until the

ampliﬁ er switches back to operating mode itself.

7. POWER Switch

The unit is switched on via the power switch. The loudspeaker outputs are switched on via delayed

relays so that no startup transients are audible. A current limiter prevents startup peaks on the mains

line and prevents the mains fuse from blowing.