Pioneer DJM-800 no enciende

Hola buenas, tengo un problema con mi Pioneer DJM-800

Cambié un fader que ya empezaba a fallar, puse el nuevo fader, la encendí y a los 2 segundos se apagó sola, no volvió a encender nunca mas

Cual ha podido ser el problema??????

Hi, I have a problem with my Pioneer DJM-800

I changed a fader that was already starting to fail, I put the new fader on, and after 2 seconds it went off by itself, it never turned on again

What could have been the problem ??????