Classe CA-2100 Manual De Instrucciones página 21

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Troubleshooting

In general, you should refer any service problems to your Classé dealer. Before

contacting your dealer, however, please check to see if the problem is listed here.

No sound, and no Channel LED is lit.

• The ampliﬁer is not plugged into the AC mains, or the AC

mains are down (circuit breaker, fuse).

• A brown-out or short-term loss of power might require the

internal microprocessor to be reset. Unplug the unit for at least

30 seconds and then plug it in again and try powering it up.

• The AC mains fuse is blown. See Troubleshooting #4, below (or

contact your Classé dealer).

• The AC mains is out of range. Check the voltage speciﬁed on

the rear panel.

No sound, and one or more Channel LEDs is blinking red.

• Your protection circuitry may have been engaged. To reset the

ampliﬁer, press and hold the Standby button for 3 seconds

to power down the ampliﬁer. Then disconnect all inputs and

outputs.

• Then try powering up the ampliﬁer by pressing the Standby

button. If the LED continues to blink, there is a fault condition

in the ampliﬁer itself. It should be powered down, disconnected

from the AC mains and taken to your Classe dealer for service.

• If it powers up without any difﬁculty, power it back down and

reconnect only the inputs. Then restart the ampliﬁer. If it goes

into its blinking protection mode, something is wrong with a

component "upstream" of the ampliﬁer—probably a DC offset

or similar problem. Your ampliﬁer is trying to protect your

loudspeakers (even small amounts of DC can damage woofers in

relatively little time). Try different source components to discover

whether the problem is limited to a single source, or exists all the

time (which would indicate a problem with the preampliﬁer).

Contact your dealer for help with the appropriate component.

The ampliﬁer keeps shutting off.

• Make sure you are providing adequate ventilation to the

ampliﬁer, and that the ambient room temperature is below

105°F (40°C).

• Run through the troubleshooting sequence outlined above

(assuming the ampliﬁer is going into its protection mode).