Signal Led - Crest Audio Crest CLh Serie Manual Del Proprietário

Front Panel
CH. 1 CH.2
DC protect
Temp
ACL
Signal
Active
1
LED Indicators
1
The CLh™ amplifiers feature five front-panel LED indicators per channel: ACTIVE, SIGNAL, ACL™, TEMP and
DC protect. These LED indicators inform the user of each channel's operating status and warn of possible abnor-
mal conditions.
ACTIVE LED
The Active LED indicates that its channel's output is closed and the channel is operational. It lights under normal
operation and remains on, even when the channel is in ACL™ gain reduction. If the Active LED goes off, there is
no signal at the output connectors.

SIGNAL LED

This LED lights when its channel produces an output signal of about 4 volts RMS or more (0.1 volt or more at
the input, with 0 dB attenuation and standard x40 voltage gain). This signal indicates whether a signal is reaching
and being amplified by the amplifier.
ACL™ (Automatic Clip Limiting) LED
A channel's ACL™ LED will light at the onset of clipping. If the LEDs are flashing quickly and intermittently, the
channel is just at the clip threshold. A steady, bright glow means the amp is clip limiting, or reducing gain to
prevent severely clipped waveforms from reaching the loudspeakers.
TEMP LED
In the unlikely event of an unstable thermal condition, amplifier protection will be activated and will shut down
the offending channel. The Temp LED will remain illuminated until safe operating temperatures have returned.
DC Protect LED
In the event of excessive low frequency input signal or a DC fault condition, the CLh™ has built-in loudspeaker
protection. Under conditions that would normally damage the loudspeaker, the DC Protect LED will flash and
the amp will automatically attempt to restart to correct the condition. If the amplifier does not return to normal
operating status, contact your local authorized service center.
CLh 5000 TM
power amplifier
POWER
ON
DISABLE
ENABLE
2