Lexicon DD-8 User Manual download pdf (Page 13)

DD-8 Power Ampliers

Operation Manual 13

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Troubleshooting

The amplier does not power on.

1. Attempt to power on the amplier with the front panel Standby/On button.

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

connector and the wall outlet.

3. Check the wall outlet.

The Trigger Input is connected to an external device, but the amplier does not power on and

o with the external device.

1. Verify the trigger cable is connected at both ends and verify that the trigger cable is

connected to the right device. Also re-verify the trigger installation instructions as

instructed in the Basic Operation section of this user guide.

2. Verify the trigger level of the output source device. The DD-8 accepts a range of

5-15VDC.

Source signals are present and the system is at a suitable volume level but one or more

channels are not passing audio.

1. Reduce system volume level.

2. Power the DD-8 into standby mode.

3. Check input connections.

4. Check speaker connections.

5. Allow the amplier to cool before powering it on again.

Audio sounds “thin” and is lacking proper bass response.

Check to ensure proper polarity of the speaker cables and connections.

Audio Levels dier between channels.

1. Check the level settings of the DD-8 Output Level Controls.

2. Check the settings on your preamp, processor or controller.

Audio plays and then cuts o.

Check input and speaker connections for short circuits or loose connections at the amplier

and speaker.

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Lexicon DD-8 User Manual Page 13