Mentre suono altre note si attivano da sole - Korg SP250 White Digital Piano STAGE ESSENTIALS BUNDLE

Hi Safa Mashat, the problem with the two lights, can have several origins
First, disconnect the signal that enters these two channels and check if they are still on, but they are, the problem is in the cable or device that is connected to that line
If the fault still continues, it is most likely that the two-channel input stage has been damaged.
In this case if you have technical knowledge, I send you the service manual link
If not, I suggest you look for a specialized technical service
I hope you can solve the problem
Greetings Franco Dosil

Hola Safa Mashat, el problema que tenga las dos luces, puede tener varios origenes
Primero, desconecta la se?al que le entra a estos dos canales y verifica si siguen prendias, sino lo estan, el problema esta en el cable o aparato que esta conectad0o a esa linea
Si aun continua la falla, lo mas probable que se haya da?ado le etapa de entrada de los dos canales
En este caso si tienes conocimientos tecnicos , te envio el link del manual de servicio
Sino, te sugiero buscar un servicio tecnico especializado
Espero puedas resolver el problema
Saludos Franco Dosil

https://elektrotanya.com/yamaha_emx5016cf_sm.pdf/download.html
https://mx.yamaha.com/files/download/other_assets/5/334285/emx5016cf_es_om_d0.pdf

Hi Ezra, for the failure you describe, you may have a problem with the Main Insert connectors, more presumably on the left, this connector has the function of interleaving some type of processor in the stages of the master L and R, and has some contacts internal that get dirty and produce false contact in the passage of the output signal
Try cleaning it with some contact cleaner, put a small amount of cleaner and with the help of a plug, put it on and take it out several times in order to make the cleaner work, do the same with the right channel, because the same fault will appear. , sometime
If this does not work, you would apparently have problems with the left master dimmer potentiometer on the corresponding electrical circuit
I sent you the link to download the user manual of your Behringer
I hope you serve my suggestions and manage to make the left exit work
Greetings Franco Dosil

Hola Ezra, por la falla que describes, puedes tener un problema en los conectores Main Insert , mas presisamente en el Izquierdo, este conector tiene la funcion de intercalar algun tipo de procesador en la etapas de los master L y R, y cuenta conunos contactos internos que se ensucian y producen falso contacto en el paso de la se?al de salida
Prueba limpiarlo con algun limpiador de contacto, pon poca cantidad de limpiador y con la ayuda de un plug ve colocandolo y sacandolo repetidas veces a los efectosn de que el limpiador actue, haz lo mismo con el canal derecho, porque ya le aparecera la misma falla, en algun momento
Si esto no da resultado, aparentemente tendrias problemas con el potenciometro atenuador master Izquierdo on el circuito electrico correspondiente
Te envio el link para que descargues el manual de usuario de tu Behringer
Espero te sirvan mis sugerencias y logres hacer funcionar la salida Izquierda
Saludos Franco Dosil
http://www.manualsbase.com/es/manual/downloadmanual/119881 https://manualsbrain.com/es/manuals/809021

Without knowing the make and model of whatever instrument you're asking about, we can't advise you. Please re-post your question and include the relevant facts.

Tengo el mismo problema, ella suena pero al subir la potencia se apaga, supongo es una soldarura mala, si es asi por favor especificame adonde y si es otra causa favor indicar.
Agradecido de ante mano!

In playing fast you have to make sure to release the note fully and let the key come up. These keys have TWO contacts that are used in the scheme to measure note velocity. If BOTH contacts don't open, the note will NOT re-fire. The second symptom you have written would be a characteristic if one of the disconnect diodes has shorted. These diodes direct the strobe signals that scan the matrix of key contacts to avoid other octaves responding when multiple keys are depressed including those in other octaves. Servicing of the unit is required. It is unlikely you have the tools to DIY this problem. ONE THING to try is to tip the unit and gently tap it to see if some debris MIGHT have fallen in that may be shorting some of the matrix connections.

Probably has contamination in the reed. View YouTube videos about "harmonica cleaning".

The mics on the singing machine are very low end mics and MAY not work on your other unit. The Voco has very sensitvie inputs to use with "professional" type microphones. The Singing machine mics are going to be fairly high output and likely to overload the voco inputs. Procure some professional mics like Shure, AKG, Sennheiser or others and don't forget to use a balanced to unbalanced adapter or cable on the mics.

Necesitas los drivers que deber?an venirte en un cd con la consola. Si no instalas eso, la PC no reconoce los AD converters que usa cada canal , que ser?a como agregar la misma cantidad de tarjetas de sonido nuevas, y es imposible que puedas grabar.
Si no tenes el CD, deber?as ingresar en la pagina del fabricante para descargarlos.

Behringer does NOT supply diagrams except to their authorized repair facilities... I know as I have tried and I wind up repairing without diagrams/schematics most of the time. In some cases I have traced out the circuitry.

FORTUNATELY mixers are fairly simple circuitry.

MOST problems I have encountered were due to defective sliders and in one case liquid had caused circuit traces to short and the burned area had to be carved out and jumpers placed where the traces were missing.

the circuitry repeats several times so one can look at adjacent channels to compare damage.

I do not know your language, but reconized what you are asking from the few words I trnaslated.

I can't find it in our knowlegebase, but you can get it @ www.vintageaudiomanuaks.com. Not sure of the cost. Good Luck