6 Troubleshooting

Troubleshooting Index

Symptoms No audio at outputs.

Weak output signal.

Clip LED lights often.

Can’t edit program, can’t select new program.

Numeric LED Display keeps flashing “Li.”

Numeric LED Display keeps flashing “Lo.”

Must de-select all bands in order to edit a single band.

DEQ230 won’t turn on/won’t go into Setup mode

DEQ230 won’t turn on/won’t re-initialize

Analog input is ignored

Digital input is ignored

Cause

No input audio.

Bad cables.

Destination is turned down.

Input level weak.

Output level weak.

(Decide which is the case by pressing the Bypass button.)

Input level too high.

Output level too high.

(Decide which is the case by pressing the Bypass button.)

DEQ230 is locked.

Channel B is linked to Channel A.

DEQ230 is locked.

Release Edit Group function set to Off.

Holding down buttons when turning on power

Holding down buttons when turning on power

Digital signal present at S/PDIF Input

Force Analog Input is set to Analog in Setup mode.

Solution Test with a known good input.

Replace the cables.

Check the connections and the level of the mixer or amp to which the DEQ230 is connected.

Increase level from source into DEQ230.

Boost channel levels of quiet program.

Boost Master Level in Setup mode.

Reduce input level at source.

Reduce gain of problem bands within program.

Reduce channel levels of that program.

Reduce Master Level in Setup mode.

Unlock DEQ230 in Setup mode. Refer to page 46.

Edit Channel A

Unlink the Channels to allow independent edits to Channel B.

Unlock DEQ230 in Setup mode. Refer to page 46.

Set Release Edit Group function to On in Setup mode.

Turn on power first, then hold down [STORE] button to enter Setup mode.

Turn on power first, then press [DOWN/UP] buttons to re-initialize.

Change Force Analog Input setting in Setup mode.

Ditto.

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Alesis DEQ230D manual Troubleshooting Index

DEQ230, DEQ230D specifications

The Alesis DEQ230 and DEQ230D are sophisticated digital equalizers designed for audio professionals seeking precision in sound control. Equipped with advanced features and innovative technologies, these units cater to a variety of applications, from live performances to studio recordings.

Both models include a powerful 31-band graphic equalizer, allowing users to sculpt their sound with incredible accuracy. The DEQ230 and DEQ230D offer extensive frequency coverage from 20 Hz to 20 kHz, ensuring that all audible frequencies are managed effectively. The 1/3-octave resolution facilitates fine adjustments, enabling sound engineers to target specific problem frequencies within the mix.

One of the notable characteristics of the DEQ230 series is its dual-channel operation. The DEQ230 provides individual equalization for two separate channels, making it an excellent choice for stereo setups or multi-channel applications. The DEQ230D takes this functionality even further by incorporating digital connectivity, allowing for seamless integration with digital audio systems and enhancing flexibility in various setups.

In terms of technology, the DEQ230 and DEQ230D utilize state-of-the-art digital signal processing (DSP) to deliver high-quality audio performance while minimizing latency. These models feature comprehensive output level control and provide precise metering through LED indicators, which allows sound engineers to monitor levels easily while adjusting the EQ settings.

Moreover, both equalizers come equipped with a variety of memory presets. This feature enables users to save and recall specific settings, streamlining the workflow during live events or studio sessions. The intuitive interface ensures ease of use, with clearly labeled controls that facilitate quick adjustments on the fly.

Alesis has also prioritized durability in the design of the DEQ230 and DEQ230D. The robust construction and rack-mountable chassis make them ideal for both touring and permanent installations. Additionally, the inclusion of balanced XLR and TRS inputs and outputs guarantees compatibility with professional audio gear while minimizing signal degradation.

Overall, the Alesis DEQ230 and DEQ230D represent valuable tools for any audio professional, offering precision, versatility, and robust performance in a compact design. Their combination of advanced features and user-friendly interface makes them an excellent investment for enhancing sound quality in any audio environment.