Mackie SR244 VLZ Pro / SR324 VLZ Pro VLZ Pro Owner's Manual - Page 30

SERVICE INFORMATION TROUBLESHOOTING If you think your Mackie product has a problem, please do everything you can to confirm it before calling for service. Doing so might save you from the deprivation of your mixer and the associated suffering. Here's a few troubleshooting suggestions: No channel signal • Is the 1-2 & 3-4 (40) or L-R (41) switch set correctly? • Is the CHANNEL FADER (42) turned up? • Try soloing that channel. Does it appear on the METERS (54)? • On mono channels, try unplugging any INSERT (3) effects devices. • Try the same signal in another channel, set up exactly like the suspect channel. No Output • Are the L/R ASSIGN (59) switches set correctly? • Are the MAIN MIX FADER (72) or SUBGROUP FADERs (60) turned up? • Try unplugging any insert (7) (13) effects devices. • If it's one of the MAIN OUTS (12) (16), try unplugging the other. For example, if it's the MAIN OUTS (TRS) (12), unplug the associated MAIN OUT (XLR) (16) output. If the problem goes away, it's not the mixer. • If it's one bad side of a stereo pair, try switching them around. For example, if a left output is presumed dead, switch the left and right cords, at the mixer end. If the problem stays on the left side, it's not the mixer. Noise • Turn the CHANNEL FADERs (42) and STEREO AUX RETURNS (48) down, one by one. If the sound disappears, it's either that channel or whatever is plugged into it, so unplug whatever that is. If the noise disappears, it's from your whatever. Power • Our favorite question: Is the POWER (20) switch on? • Turn off the power from the wall, unplug the power cord and check the fuse (22). 30 REPAIR Service for the 24•4-VLZ PRO and the 32•4-VLZ PRO is available at our factory, located in sunny Woodinville, Washington. Service for Mackie mixers living outside the United States can be obtained through local dealers or distributors. If your mixer needs service, follow these instructions: 1. Review the preceding troubleshooting suggestions. Please. 2. Call Tech Support at 1-800-898-3211, 7 am to 5 pm PST, to explain the problem and request an RA (Return Authorization) number. Have your mixer's serial number ready. You must have an RA number before you can obtain service at the factory. 3. Keep this owner's manual. We don't need it to repair the mixer. 4. Very Important: Move all Faders to their UP position as this will help prevent damage to the faders during shipping. 5. Pack the mixer in its original package, including endcaps and 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. 6. 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. 7. Write the RA number in BIG PRINT on top of the box. 8. Ship the mixer to us. We suggest insurance for all forms of cartage. Ship to this address: MACKIE SERVICE DEPARTMENT 16220 Wood-Red Rd. NE Woodinville, WA 98072 9. Ask Tech Support for the latest turnaround times when you call for your RA number. We normally send everything back prepaid using three-day shipping. However, if you rush your mixer to us by next day air, we'll treat it in kind by shipping it back the same way in which it was received. This paragraph does not necessarily apply to non-warranty service.