Cary Audio Design 7.250 Manuel du propriétaire télécharger pdf (Page 17)

TROUBLESHOOTING

The amplifier does not power on.

1. Check the rear panel circuit breaker. Ensure circuit breaker has not been tripped.

2. Make sure the rear panel Master Power Switch is set to the I (“on”) position.

3. Attempt to activate the amplifier with the front panel standby/on button.

4. Examine the power cord to ensure a good connection between the rear panel AC input

connector and the wall outlet.

5. Check the electrical circuit.

One or more channels are not passing audio.

1. Reduce system volume level.

2. Power the amplifier off.

3. Check input connections.

4. Check speaker connections. Allow the amplifier to cool before powering it on again.

Audio sounds out-of-phase

1. Check to ensure proper speaker wiring.

Audio levels differ.

1. Check the settings on your preamplifier, processor or controller.

Audio plays, and then cuts off.

1. Check speaker connections for short circuit at amplifier and speaker.

A humming sound is present in the audio.

1. If a cable TV connection is present, disconnect the cable from the wall outlet. If this

eliminates the humming sound, a ground loop isolation device is required. Contact your

dealer or the cable provider for assistance.

2. Disconnect components one at a time to isolate the problem. Once the problem is

identified, make sure the associated component is properly grounded and connected to

the same electrical circuit as the Model 7.250.

The TRIGGER INPUT is connected to an external device, but the amplifier does not

power on and off with the external device.

1. Verify the trigger cable is connected at both ends.

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Cary Audio Design 7.250 Manuel du propriétaire Page 17