•Make sure the signal cable is not routed near AC cables, power transformers, or other EMI sources (including wall warts and line lumps!). These sources usually produce hum.

•Is there a light dimmer or other triac-based (SCR) device on the same AC circuit as the monitor? Dimmers cause buzzing noises.

Use an AC line filter or plug the monitor into a different AC circuit.

•Excessive hiss is an indication of an incorrect gain setting somewhere before the speaker.

•If possible, listen to the signal source with headphones plugged into the console. If it sounds noisy there, it’s not the monitor.

I hear sound from the monitors after I switch the AC power off!

•Use the front panel switch to turn the monitors on and off, or turn off the signal going to the monitors when the AC power is turned off.

If you unplug the HR824 or turn off the power strip that it’s plugged into with a signal applied to the input, you may hear sound from the monitor for a short period of time as the muting circuit unmutes and the power supply finishes discharging. This is normal and not harmful to the monitor.

Repair

Service for the U.S. versions of our monitors is available only from our factory, located in sunny Woodinville, Washington. (Service for monitors living outside the United States can be obtained through local dealers or distribu- tors.) If your monitor needs service, follow these instructions:

1.Review the preceding troubleshooting suggestions. Please.

2.Call Tech Support at 1-800-258-6883, 7 am to 5 pm PST, to explain the problem and request an RA (Return Authorization) number. Have your monitor’s serial number(s) ready. You must have an RA number before you can obtain service at the factory.

3.Set aside the power cord, owner’s manual, or anything else that you’ll ever want to see again. We are responsible for the return of the monitor only.

4.Pack the monitor in its original packing box. This is very important. When you call for the RA number, please let Tech Support know if you need new packaging. Mackie is not responsible for any damage that occurs due to non-factory packaging.

5.Include a legible note stating your name, shipping address (no P.O. boxes), daytime phone number, RA number, and a detailed description of the problem, including how we can duplicate it.

6.Write the RA number in BIG PRINT on top of the box.

7.Ship the monitor to us. We recommend United Parcel Service (UPS). We suggest insurance for all forms of cartage. Ship to this address:

Mackie Designs
SERVICE DEPARTMENT
16140 Wood-Red Rd. NE, Ste. 5
Woodinville, WA 98072

8.We’ll try to fix the monitor within three business days. Ask Tech Support for current turnaround times when you call for your RA number. We normally send everything back prepaid using UPS ORANGE (Third Day Air). However, if you rush your monitor to us by Air Shipment, we’ll treat it in kind by letting it jump to the head of the line, and we’ll also ship it back to you UPS RED (Next Day Air). This paragraph does not necessarily apply to non-warranty service.

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