dB Technologies ES503 Manuel de l'utilisateur - Page 17
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English
Quick Troubleshooting
The display does not light up when switched on.
Check if the power cable is plugged into the Mains Input.
Check if the mains power supply is providing current.
The display lights up, but there is no sound coming from the cabinets.
Check the cables connected to the Left and Right inputs.
Check if the signal sources (mixer, keyboard, CD player) are on.
Is the Gain knob turned up?
Check the speaker cables for damage.
Check if the Speakon" connectors are fully engaged in their sockets (rotated to the right). They must be locked in place
to establish an electrical connection.
.
Sound seems distorted
Check the LED displays on your mixer. They should not be constantly in the red. If necessary, reduce the volume at the
mixer.
If the LED displays on your mixer are in the green, turn back ES channel input volume.
Annoying hum
Check the cables connecting the source of the audio signal to ES . Replace any damaged cords.
Important TIPS
Do not expose electronic circuitry to moisture!
To ensure proper ventilation, make sure the subwoofer is placed a sufficient distance
away from walls and isn't covered by curtains
Provide it with optimum input signals!
Avoid distortion!
Avoid ground loops!