Stewart Audio AV20-2-LZ-D, Руководство пользователя

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PoE Series Audio Amplifiers Operations Manual Rev E Page 10
Top Table of Contents
8. Troubleshooting
The Power LED and the LEDs on the RJ-45 jack are not illuminated

Verify the integrity of the Cat5e/6 cable and that there are no broken wires.

Verify that the Cat5e/6 cable is connected to a PoE powered switch or mid-span injector.

Verify that the Cat5e/6 cable is connected to a PoE powered port on the switch. On certain
PoE switch models only some of the ports are powered.

Verify that the PoE switch has power available. If the total available power is already
allocated, the port connected to the amplifier may not be powered.
The Power LED and the LEDs on the RJ-45 jack are illuminated, but there is no sound

Verify that a Dante™ transmitter is routed to the amplifier and that there is audio coming
from the transmitter. A green checkmark at the intersection of the transmitter and PoE
amplifier receiver in the Network View screen indicates that a Dante™ subscription has been
established. In the Device View screen for the PoE amplifier, the speaker symbol should be
green, not gray. See the Dante Help for more detailed information.
The amplifier cycles on and off over a several second period

Check speaker connection for loose connections, broken wires or shorts, or a loudspeaker
connection to ground.

Verify that the amplifier is connected to the appropriate PoE+ or PoE++ switch or mid-span
injector (802.3at – 30W port power or 802.3bt – 60W port power) for the amplifier model.

Verify that the 4Ω/8Ω switch is in the proper position to match the loudspeaker impedance.

Verify that the total tapped wattage of all loudspeakers is less than 16W for the CVA16-1-CV-
D model, and less than 40W for the CVA40-1-CV-D model.

Reduce the Dante™ transmitter signal level or add a limiter to reduce audio peaks.