Mackie Music - Page 9 - Recent Questions, Troubleshooting & Support

Sound like either the crossover or the driver has blown or, if you're lucky there is a loose connection internally if you have only checked external connections.

You do not give enough info to even start suggesting answers. What are you using (model numbers) and what do you mean by freeze? Is it stopping and a constant note coming out (of what) or is it going quiet. etc. Please give all the info you can about the equipment you are using and the detailed symptoms

Do the protect lights light up when you turn it on? There is a soft start circuit that should delay for about 3 seconds when powering it up, it sounds as if this is not working. If you don't get the protect lights for a second or so when turning it on then this has failed and you need to get it serviced and repaired before more goes wrong.

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.

This sounds like yet 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 should not fail in this way. 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.

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.

This is available at http://www.mackie.com/Products/onyxblackjack/pdf/Onyx_Blackjack_OM.pdf

It seems likely that the pot (volume control) is dirty. with a slider you can normally get fluid down the side of the knob, your's is a rotary control and you sometimes can do it round the shaft of the pot but more often have to spray it in where the connections go into the pot. You'll need some contact cleaner spray which you can get online or from an electronics store, get it onto the pot track and then take the pot to each end of its travel a few times, this'll probably sort it out until next time. If you're taking it apart it might be worth just getting a new and better pot and soldering that in if you are hand with a soldering iron. The ones in Mackies nowdays are pretty sh1t.

Cleaning may be an issue, maybe try putting something under it to air can get to the bottom. I've had to do that with my mixer.