Audio Control DM-810 Installation Manual

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Installation Manual

Troubleshooting

Many problems can be eliminated by re-checking the wiring and

settings of the unit. If a problem cannot be solved using the guide

below, please call the AudioControl team for further assistance, or

e-mail us at sound.great@audiocontrol.com

1. No Sound

a. Verify the Power LED is a splendid red.

b. Verify the ampliers are on.

c. Verify the source unit is operating.

d. Check the speaker connections.

e. Check the power fuses on the amplier.

f. Check the ACR-3 (in blue-LED mode) is not at minimum.

g. Check the output RTA for activity, and the MUTE buttons. For

example, check that you have not accidentally saved all the

preset memories with MUTE on all of the outputs.

2. Source Clip LED is on:

a. Turn down the level of the audio signals entering the DM-608/

DM-810. The DM-608/DM-810 analyses the incoming audio on

channels 1-2, and detects if the signal is clipping. Make sure

the settings in other equipment in your system, such as EQ

controls, are not over-done and clipping the signals.

3. Speaker channels are cutting in and out:

a. Make sure the speaker impedance is not less than the recom-

mended minimum impedance.

b. There may be a short in the wires. Suspect a short if the prob-

lem happens only at the highest volumes.

c. Make sure subwoofers are not being overdriven, beyond their

recommended level.

4. Speaker Buzzing or Crackling at high volume:

a. Reduce any preamplier/equalizer low-frequency boost.

b. Check the DM-608/DM-810 Source Clip LED is not on.

c. Try playing something dierent and see if it occurs again.

d. Adjust the DM-608/DM-810 so the levels going in (Source Clip)

and going out (Gain Maximized) are optimized.

e. Note: Scratching your ear with your car keys may cause your

head to start up.

Chapter 9: Troubleshooting

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Audio Control DM-810 Eight by Ten Channel DSP Matrix Processor Audio