Question about Mackie TH-15A Active DJ Powered THUMP Speaker Stand and Cable Set TH-15ASET1

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Where can I find a repair manual for my Mackie Thump 15a powered speakers?

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This link (from Fred Yearian) is not MACKIE THUMP 15A Repair Manual. That is repair manual for Mackie Mixer 1604vlz.

If you need Repair/Service Manual for Mackie Thump 15A,
give your email. and I'll send it,for free.
Some examples images inside of the Mackie Thump15A that I repaired:
where can I find a repair manual for my Mackie Thu - fb4008c5-562e-4866-8183-660bc02c4b8f.jpg

Posted on Aug 20, 2014

  • Jurgen Geeregat Nov 28, 2014

    Could you send Mackie Thump 15A repair manual to thank you in advance



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6ya staff

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Hi there,
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Posted on Jan 02, 2017


Fred Yearian

  • 5603 Answers

SOURCE: Have a Mackie 1604 VLZ

One of the power supplies has failed. This can either because of a short on it or the regulator chip has failed. Unplug the power cable from the main board. At one end are the +/- 16 volt supplies with ground in the middle. and the other end has a ground and the 48 volt phantom power. There are a couple grounds near the middle and a 10 volt power as well.

Here is your schematic:

Scroll down to "get manual" and click on it to download. IGNORE other download links... they are for third party PDF readers.

The order to troubleshoot: Unplug the power cable from the supply to the main board. Test for those voltages with power on. If they are NOT there, disassemble the pod to get to the power supply and troubleshoot for the missing +/-16 volt supply... May be shorted by
a cap or the regulator chip may have failed. If the supply voltages are there, turn off power and replace the connector being VERY careful to not get it a pin sideways as there is NO index. Next disconnect the audio cables to the pod and reach in and check the voltages on those pins again on the power cable, or just note if the LED's are still screwed up... If they are, congratulations... you get to remove the POD from the back.... 4 screws... and then get to carefully pull every knob off the panel and using a small hex allen wrench remove a bunch of screws to release the main board. There is a dust cover for the faders... remove this noting the oreintation and DO NOT forget to replace it when you are done. Now you can reconnect the power supply to the bare board. First thing is to visually inspect for the obvious... next with power on use a "calibrated finger" to look fo a hot chip that might be sucking the current... beyond that you use the techniques of millivoltmeter searching for where the current is shorted looking for the place where that voltage goes to near zero. This uses the resistance of the power buss. When it is all repaired you get to put those knobs back on... been there, done this... I had a bad chip that was the driver for the MAIN INSERT... stuck down between the main fader and the one next to it. ALWAYS power all interconnected equipment form the SAME receptacle or power conditioner to avoid the ground bounce damage like this.

Posted on Aug 06, 2011


  • 4234 Answers

SOURCE: Bought a used Mackie TH-15A.

The internal amp is in need of repair. Are there any other symptoms or signs?

Posted on Feb 08, 2011

Fred Yearian

  • 5603 Answers

SOURCE: i have a mackie fx 8 mixer connected to two thump

Balanced audio interconnects (either XLR or TRS cables from the mixer and then balanced audio interconnects from the amp daisy chain inputs to the existing speaker inputs. If the amps do not have linked input jacks, then use TRS type WYE connectors at the inputs. Then use speaker rated cables from the amps to the passive speakers.

Posted on Aug 13, 2011

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1 Answer

Hi there, my relatively new Mackie Thump wont power up despite being plugged in / on etc. When I do with it on all i hear is a very low pop sound every 5 to 10 seconds or so

Your best bet is to contact Mackie Tech Support. Here is a link to their Suppot page. Mackie Tech Support
it's likely it needs to go to a repair shop. Here is a link to their service center finder. Mackie Service Center Locater

Feb 05, 2015 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

Just blew a mackie th-15 400 watt last and was wondering if buyin1 new onthat is a 1000 watt is ok until i can get a complete new set?

Don't even go there. In my experience these are just not reliable speakers, we have had and heard of so many issues with them we sold our working ones. If one has gone sell the other working one with the dead one as spares and repairs and buy something from QSC, EV, JBL or Yamaha or even Wharfedale Pro.

Aug 10, 2014 | Mackie TH-15A Active DJ Powered THUMP...

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.

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.


Hope it helps. Regards.


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

1 Answer

How to replacea bass driver in mackie thump 15a

"How to replace bass driver in mackie thump 15a".
Did you mean,disassembly the speaker enclosure?
Just remove the 16 screws at the rear cabinet, using a screwdriver.
Then remove the 4 screws that secure the speaker, using the hex key. Is the bass driver blown up / broke?

Jan 28, 2014 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

I had Mackie th15a 110vac and it had busted fuse, when i replace it when a new one it got busted again...i plug the power cable to 110vac without a regulator. what would be the problem in the power...

Almost certainly the amp has failed, as per usual with these, you need to take it to the repair shop and see if it's worth fixing it then sell it once working or for spares if not. Sadly whilst Mackie make some really good kit their powered speakers are not amongst the most reliable

Dec 26, 2013 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

Mackie Thump TH-15A speaker amplifier module

Jose Miguel Carcamo Cruces do you have pictures of these j112 fet ? Thank you!

Oct 07, 2013 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

My Mackie Thump TH-15A will not produce any bass. I can get some sound but only from the top tweeter. Whats wrong and how can i fix this?

Could be the crossover has died or the main speaker winding has failed. Open her up and connect on side of the main speaker direct to a 9v battery and then wipe the other wire over the other terminal. If you get a crackling from the speaker then it's likely the crossover, if there is no response at all from the speaker then it is dead and possibly the crossover too.

Sep 23, 2013 | Mackie TH-15A Active DJ Powered THUMP...

1 Answer

How do i connect thump 15 A powered speaker to powered mixer?

You failed to give us the most important information... what brand and model of the mixer? Youwill use balanced interconnect lines to a balanced MAIN output jack, assuming it exists...

Aug 05, 2011 | Mackie TH-15A Active DJ Powered THUMP...

3 Answers

Bought a used Mackie TH-15A. When powered up there is no all.

The internal amp is in need of repair. Are there any other symptoms or signs?

Feb 08, 2011 | Mackie TH-15A Active DJ Powered THUMP...

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