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Frying noise on both channels enhanced console moon m610usb

Javier Humberto

hace 5 años

Hello people of YoReparo, I have this console powered, and the problem is that from one day to the next, it began to make frying noises, in both exits. even if nothing is connected via aux, usb, or mics, the noise is the same for the speakers I have two peavey speakers of 15 "8 omhs, I never had problems, the console is quite new, and from one moment to another it began to make frying noises until it reached explosions in the speakers, I checked cables, both input and outputs to the speakers, all OK, but without any input device it does the same, Disarm it and it has like a celestial RELAY that when making a "clik" the noises begin, I don't know if that clik is normal, and the 3-leg output transistors are damaged or is the relay in question, or the large capacitors that has but the matter is that it started from one day to the next ..... from now thank you very much for some help ... If I have to contribute more photos, tell me that I take it apart again and send a photo, thanks again

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Javier Humberto

hace 5 años

If I disconnect the cable that comes from the part of the potentiometers that enters the pre-applicator, there is no noise, the speakers are silenced and it does not send any acoustic signal or "his" anything, another thing I noticed is that in the state of at rest, just by turning on the power, the transistors that are screwed to the heatsink get very hot, without active signal from outside, bone in standby mode, can the filters be "capacitors" ???? of the plate? can they be the transistors? send repair for now is not an option because I do not have that money, but not let it die

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Alexis Navarro

2.946

hace 5 años

Greetings, friend Humberto, it may be, the filters are the fastest decay in a circuit, it must be fixed if the heat transfer gel that is in the power transistors is dry, if so, it must be replaced, when disconnecting the cable of the signal, it is proof then that the fault is in the mixing and equalization stage, it can be a defective integrated (operational), those integrated 8-pin, you can also test by entering a signal separately to the amplifier board that has volume control , so prove that the amplifier stage is fine.

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Javier Humberto

hace 5 años

Friends of the community and especially Alexis Navarro, TOTAL THANKS !!! I did not know where to start and could not pay for the arrangement, I decided to continue with intuition and heeding some of your advice Alexis, take apart the front where the equalizers and potentiometers are, the first thing I did was pass ALCOHOL ISOPROPILOCO, to the equalizer rails with ISOPOS, of those for the ear, I said well I will try, ovbiably pass the alcohol and then dry it with another isopo, I thought "well I will try" wualaaaa matter solved it already takes 1 hour the team with music and there are no more noises

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Alexis Navarro

2.946

hace 5 años

Cordial greetings, friend Humberto, I am very happy that you have been able to solve your problem, you have to have the cunning as yours to solve problems like this, my person and other colleagues in the forum are always here for everyone's collaboration and to help The rest, with pleasure.

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Javier Humberto

hace 5 años

Thank you very much and hopefully this serves for similar cases, of minor causes but for something you have to start fiddling, always with the precautions and some knowledge, with the help of people like you. Again thanks to the forum and avos alexis a hug

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Alexis Navarro

2.946

hace 5 años

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hace 5 años

Cordial greetings friend Humberto, if you mention that the console is practically new it is rare that it makes such noises, you can check the filters of the source, the largest and even the smallest ones that are not inflated since that is not normal and can cause these strange noises, it can also be produced by some type of induction or dirt, so it would be advisable to first clean it with a spray cleaner for electronic cards of very good quality, which is dielectric and fast drying, so that you do the cleaning of both the pre and the amplification card part, of course the console is previously disconnected from the mains, after cleaning, wait for a prudent time to dry well and try again, if you do those Noises can again comment to continue in their support and if it would be a good idea if you can upload photos of the open console to be able to detail the cards and provide a better or guide. regards

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Javier Humberto

hace 5 años

Hi, thanks for the reply, but I can't publish photos or I won't be able to publish more photos since I'm new and I have limitations on the page,
one more fact, the "noise" is still produced with all the potentiometers at 0
If you can help me upload photos gratefully.

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Alexis Navarro

2.946

hace 5 años

Greetings, friend in the box where you comment at the bottom comes a small pencil, clicks there and improves response, once so you can upload photos in the same way as you did before and you can upload them again, remember that the option is the little square that is at the top. regards

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Javier Humberto

hace 5 años

Friend alexis thanks for the help, there I uploaded photos of the open console.

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Alexis Navarro

2.946

hace 5 años

Good morning, greetings friend Humberto, that is the amplification card, as I mentioned before in a sensilla test you can clean that card both on the top and the bottom with electronic component cleaner by applying a generous layer on both sides and helping you with a brush, until you see that it is clean, then you let the weapons dry and try again to see what the results of the cleanliness are, if it is because of the dirt it will improve, if there is no need to continue detailing, comment if you do To continue in your support. regards

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Javier Humberto

hace 5 años

hello thanks for answering, I already did it and the noise continues and sometimes the volume is lowered and it goes back up, it makes type "explosions" in the speakers, and the strangest thing is that it continues making the noise even with the equipment without any input of active sound, and the master potentiometer at "0", thanks if you can think of anything else we follow, call a technician and want to assault me armed to repair this noise without even seeing it.

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Alexis Navarro

2.946

hace 5 años

Greetings, it could also be to clean the master control then to see how it behaves, if it redoes the noise it can already be the pre amplifier with possible damages in an integrated, the other test that can make friend, is to remove the signal cable that arrives at the amplifier card, I think it is the white one that is next to the sink on the side where the gray is, with this the doubt is cleared if the damage is in the amplification card or the one of the pre, if it is identified as R and L In can be done, in the photo you can't see very well, if you dare to do this test you can

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Alexis Navarro

2.946

hace 5 años

Discard more easily, to locate on which card the fault is, otherwise it is time to seek technical service that is more conscious and will not assault it as you say my friend, if you can identify this signal cable you can do the test and comment on how was your Outcome. regards

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