Top 20 Mackie TH-15A Active DJ Powered THUMP Speaker Stand and Cable Set TH-15ASET1 Questions & Answers

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

i) I assume the fuse you mentioned was in the mains plug - did you also check the fuse in the TH15A mains input socket? This is accessed by pulling out the tab in the bottom section of the socket (below the centre pin). This is a 3.15Amp antisurge fuse, 20mm type. ii) If this fuse has blown, then replace it & all may be well ...... but if it blows again, then move to step iii). iii) With mains disconnected, remove rear panel (outer screws) & check the power supply PCB for damaged components, especially R111 & R112 (100ohms). If the latter are burnt or open circuited, then the amplifier module may have blown. regards, Dave

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

"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?

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

This sounds like another case of bad connections or soldering in the amp. If it's not too old take it back to your dealer, they should fix it. These are designed (allegedly) to be used and moved about and should not fail. If it is too old then open it up and with care - and with yourself isolated from earth and wearing insulating gloves wobble connections and components until you find the cause. We have had a couple of this sort of fault with newer mackie stuff and it's not been too hard to track down and fix if you're handy with a soldering iron. If you have any doubts about being competent to do this sort of thing take it to someone who knows what they are doing, it should be a fairly quick fix.

As Tom Jones sang 'It's not unusual....' The amp has probably gone and you need to get it fixed. These are not the most reliable and I would suggest getting something better from another manufacturer if you can afford it, perhaps a local shop would do you a trade in if they can fix it?

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.

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

Remove 115V jumper in the Power Supply Unit at secondary side in order to operate Mackie TH-15A Speaker on 230V. Download Schematic Diagram from the below website: https://elektrotanya.com/mackie_thump_th-15a_sch.pdf/download.html#dl https://elektrotanya.com/mackie_thump_th-15a_sch.pdf/download.html#dl

tda8950th damaged. (low frecuency smd amp), good look.

This link (from Fred Yearian) is not MACKIE THUMP 15A Repair Manual. That is repair manual for Mackie Mixer 1604vlz. http://elektrotanya.com/mackie_1604vlz.pdf/download.html 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:

short circuit in secundary of the power supply or power amps damaged.

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...

After removing the back cover disconnect the tweeter cable form the terminal. Then hold the tweeter magnet and turn it anti clock wise. The driver unit will unscrew and come of the horn assembly.
Keep the driver unit on a firm table and unscrew the four + screws. It has a sandwich assembly which will part into two if you put a sharp knife and twist. You will see the tweeter diaphragm which can be lifted up again by using a sharp knife. The replacement diaphragm is available from the below given address
http://reconekits.com/tapcothumpth-15ahorndiaphragmpn0013252-1.aspx

Crackling is usally one or two things my guess would be bad grounding of the amp or bad connection with the jacks or plug it self try to make it crackle on purpose by jiggling the jacks see if it has any effect on the crackling try to narrow your possibilitys

Make sure you are using BALANCED audio line to the speaker AND your mixer is powered from the SAME receptacle as this speaker. One MAY have to run an extension cord back to the mixer and othe equipment, but this must be done to reduce noise and also for equipment safety. Multiple recepatacles in a building have grounding issues that can generate noise or worse damage equipment due to ground loops. If you DJ mixer does NOT have balanced outputs, use DI boxes so you can use balanced lines to your speakers. Your cables will either be XLR or 1/4 inch TRS types, not just TS type.

Make sure ALL interconnected equipment is powered from the SAME receptacle. Use extension cord if necessaary. Use ONLY balanced interconnecting audio lines as well. You have a ground loop... make sure all power connections are three wire.

There shouldnt be an issue, you can try it if it sounds like **** then go back to the other way. Trial an error is always an option :-)

Make sure you are using BALANCED line to this... XLR connections boyh ends. Make sure ALL interconnected devices are powered from the same receptacle or power conditioner. Test your cables... they do go bad. This unit REQUIRES line level input. Do NOT expect a mic to drive it directely. Make sure your mixer uses the XLR outputs and is powered from the same receptacle, even if you have to run an extension cord to it. This is a bi-amped speaker so there are independent amps for high and lows. With nothing out and known good in there is very little electronics before the signal is split to the separate amps. At line level, your volume control should probably be about 2 o'clock with the EQ's straight up flat.