Tapco MIX.FX MIX10FXP User Manual - page 22

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Appendix A: Service Information

If you think your TAPCO powered mixer 

has a problem, please check out the 

following troubleshooting tips and do 

your best to confi rm the problem. Visit 

the “Talk To Us” section of our website 

(www.tapcoworld.com) and contact 

our technical support heroes and get 

some ideas. You may fi nd the answer to 

the problem without having to send your 

powered mixer away.

Troubleshooting

Bad Channel

•  Is the break switch on?

•  Is the EQ set up nicely?

•  Is the gain switch set correctly?

•  Is the level up enough?

•  Is the channel OL LED on?

•  Try the same source signal in another 

channel, set up exactly like the suspect 

channel.

•  Is phantom power required for your 

microphones?

Bad Output

•  Is the main master level control turned 

up?

•  Are the graphic EQs set to reasonable 

levels?

•  Is the FX level going to the main mix too 

high (OL LED on)?

•  If it’s one of the main speaker-level 

outputs, try unplugging its companion. 

For example, if it’s the 1/4" left main 

output, unplug the left Speakon output. 

If the problem goes away, it’s not the 

powered mixer.

•  If a left speaker is presumed dead, 

connect it to the right output instead. 

If the problem stays with the same 

speaker, check the speaker wiring, or 

any speaker fuses.

•  Unplug anything from the main line-level 

outputs, or other line-level outputs, just in 

case one of your external pieces has a 

problem.

•  You may be overdriving the amplifi ers. 

Check the loudspeaker average load 

impedance is not less than 4 ohms. 

Check the speaker wiring. Check that 

the meter CLIP LEDs do not come on.

Noise

•  Turn the channel levels 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

•  The power LED should come on if the 

powered mixer is connected to a 

suitable live AC mains outlet, and the 

power switch is on. Check the power 

cord is securely plugged in.

Repair

For warranty repair or replacement, refer 

to the warranty information on page 27.

Non-warranty repair for TAPCO products 

is available at a factory-authorized service 

center. To locate your nearest service 

center, call our Tech Support department 

at 1-877-827-2669, Monday-Friday, 7 am to 

5 pm Pacifi c Time, to explain the problem. 

Tech Support will tell you where the nearest 

factory-authorized service center is located 

in your area.