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All the lights on level input signal stay lighted up after powering on mackie 408 m

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5 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 221 Answers

SOURCE: my mackie d8b just stop picking up any input

Also check your phantom power - if your mics need phantom power and it's not there...

Posted on Dec 11, 2009

barbu51
  • 566 Answers

SOURCE: Mackie 1604 VLZ3 Issue.

Hi kielhunt
It sounds like power supply issues.
You may have bad capacitors and/or bad regulators.
If you have a multimeter you can get in there and check the dc voltages for ripple(ac voltage mixed with dc) or over/under voltages along the +/- 15volts lines.
Good luck

Posted on Jan 20, 2010

Testimonial: "Good ideas, even though he didn't know the answer to the issue fully he was well rounded enough to give great ideas for in-house solutions!"

  • 5603 Answers

SOURCE: Hello,

There are LED's all over these and you don't say which are lit... If they are mute or solo LED check the switches for a solo button or mute that is set.

IF they are the output level LED's plug in a set of phones and crank the phone volume up to losten if there is feedback or oscillation that is causing this.

HUM PICKUP due to a ground loop could be causing this. Make sure that ANYTHING connected to the unit that is also powered receives pwer from the SAME receptacle. If you have devices that receive power from a different receptacle you MAY have a ground loop. Noise on power lines can DAMAGE the equipment due to excedding the common mode input and output capability of the unit.

Finally, a strong local radio transmitter MAY be interfering. Sometimes the interference can go backward into the output lines to trigger the indicators.

As a test, when event occurs again, start unplugging anything connected to the mixer and see if disconnecting anything stops the problem. If you can have the problem with ONLY the power connected, then check if you have inadvertently created a loop within the unit by your settings.

Please refer to the "signal flow" diagrams in your user manual to see the possible feedback paths you can cause a loop to form.

REMEMBER the oscillation MAY be occuring well above the frequency you can hear !!!!

If you have access to an oscilloscope that would see if there is an oscillation going on.

Posted on Apr 18, 2010

  • 5603 Answers

SOURCE: A Mackie SR 40 solo light stays on along with the

Check for a defect on the solo switch. The rude lights when ANY solo is on. Sometimes the switches stick mechanically and don't fully come up.

Posted on Nov 06, 2010

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1 Answer

I want to use theMackie as a sub mixer into a powered "all in one" Peavy mixer, where do I come out of the Mackie into one of my powered mixer line inputs?


Take the main outputs into a stereo input (or a pair of mono inputs) on the Peavey - without knowing which Peavey I cannot tell you further info re set-up but as you'll be sending line level signal you'll need to back off the gain on the channels you input to on the Peavey

Nov 17, 2016 | Mackie Music

1 Answer

I have a Mackie 406M Powered Mixer. can't get sound out of it anymore. all the input level set lights stays on. any suggestions


That sounds like the amp board died. Mackie parts can be hard to source, and Mackie is really slow to ship, so I suggest taking it to a Mackie authorized service center. Here's a link-

Contact Support Mackie

May 18, 2016 | Mackie Music

2 Answers

No sound coming out of my mackie


Whether you are experienced in electronics repair?
if not, try this simply way:
1: Test whether the power amplifier is still working. See figure 1.
Power OFF,adjust the EQ settings as shown in the picture.
Minimize LEVEL.Switch ON Power. Touch pin 3 at the INPUT socket by using a small screwdriver or piece of wire / cable.
Slowly raise the LEVEL,a little bit only (as the clock showed 7-8) until
sound is heard in speaker. If not heard, slowly raise again LEVEL.
If audio input signal is heard,it can simply be taken to mean
that the amplifier is working.
If LEVEL at 9 o'clock position,and the audio is not heard,
the possibility of the amplifier is damaged.
Switch OFF the power. Take it to a repair place.
6825bf32-21db-4eec-b931-9d8e40f2652f.jpg

2: When the Power LED is lit, but no sound,
There are many possible causes, one of which is:
I have been getting 3 times similar cases, and all are caused by
two Rectifier-Diode (either or both.) damage on the power-supply-unit.
Remove/desolder,measure, if damaged replace it with a new one.
See figure 2-3.
eebe24b3-1cd5-4fba-b883-6ec7daa01b8f.jpg

83a7ac9f-dec0-4f86-8152-b570c34143cd.jpg

Hope it helps. Regards.

...............

May 13, 2014 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

Mackie srm 450 very low volume


Make sure you are driving LINE LEVEL signals to this and not mic level signals.

Oct 21, 2012 | Mackie SRM450V2 POWERED SPEAKER

1 Answer

No sound


This is not a powered mixer and so you must connect a power amp to the "line level" outputs of the mixer. Other "no output" problems could be related to buss assignments and other signal routing issues. Check for output by connecting "Main Out" left or right to a guitar amp input instead BUT turn all volumes down to zero before conductiong this test as guitar amps are designed for "Microphone" level inputs. Owners and Hookup manuals can be found here...

http://www.mackie.com/products/1604vlz3/

Sep 09, 2012 | Mackie 1604 Vlz3 16 Channel Mixer

1 Answer

Hi, I'm dealing with a problem on my Mackie ProFX 8 mixer. For no reason that I can discern, I am simply not getting any signal out of the mixer. I've adjusted the appropriate levels and gains,...


Are you getting signal into the mixer? Do the level meters light up?

If so, check your speaker cables. If not, check the mic cables and mics (try with phantom power on and off).

Also, try plugging a speaker into an Aux out to see if you can get level out of that.

Hope that helps...

Jul 01, 2011 | Mackie ProFX8 / SRM450 V2 PA Package

1 Answer

I have a Mackie d8b, not getting any signal no matter what we try.


This is vague,,, there are so many outputs, knobs, LED's that I suspect you have not tried the right combination. I have no idea what your signal sources are... mics... tape... etc.

To start, turn the trim control of one channel that you have a signal source connected. Set all the EQ controls and the pan CONTROLS TO 12 O'CLOCK.

Check that you can trigger the clip light with high level of input. Press the solo button for that channel and using a set of headphones listen for any signal... turn the headphone level up and the slider for that channel...

First do your basic checks,,, try EACH mute button and see the LED light... try each solo button and see that each will light AND also that ANY solo light will cause the RUDE solo light to come on...

Dec 09, 2010 | Mackie 1604 Vlz3 16 Channel Mixer

1 Answer

Hello, The leds on my Mackie 1202 VLZ3 light up and sometimes stay lit even when there is no input going into the channels and the channels volume is completely down. Any thoughts? Thanks, Wayne.....


There are LED's all over these and you don't say which are lit... If they are mute or solo LED check the switches for a solo button or mute that is set.

IF they are the output level LED's plug in a set of phones and crank the phone volume up to losten if there is feedback or oscillation that is causing this.

HUM PICKUP due to a ground loop could be causing this. Make sure that ANYTHING connected to the unit that is also powered receives pwer from the SAME receptacle. If you have devices that receive power from a different receptacle you MAY have a ground loop. Noise on power lines can DAMAGE the equipment due to excedding the common mode input and output capability of the unit.

Finally, a strong local radio transmitter MAY be interfering. Sometimes the interference can go backward into the output lines to trigger the indicators.

As a test, when event occurs again, start unplugging anything connected to the mixer and see if disconnecting anything stops the problem. If you can have the problem with ONLY the power connected, then check if you have inadvertently created a loop within the unit by your settings.

Please refer to the "signal flow" diagrams in your user manual to see the possible feedback paths you can cause a loop to form.

REMEMBER the oscillation MAY be occuring well above the frequency you can hear !!!!

If you have access to an oscilloscope that would see if there is an oscillation going on.

Apr 17, 2010 | Mackie 1202vlz3 12 Channel Mixer

2 Answers

My mackie d8b just stop picking up any input signals what could the problem be?


Make sure the mic/line button is selected when trying to input from teh external inputs.

Nov 01, 2009 | Mackie 1604 Vlz3 16 Channel Mixer

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