HELP for Pionner Djm 3000 Led problem

HELLO.

I HAVE A PROBLEM WITH MY Mixer Pioneer DJM 3000.

I CONNECT A CDPLAYER OR A TURNTABLE TO CHANNEL 3 OR CHANNEL 4 AND EVERYTHING WORKS WELL, BUT THE LEDS OF BOTH CHANNELS ARE ALWAYS ON.

DO NOT MAKE NO NOISE AND USUALLY ALL WORK.

I TURN OFF AND ON THE MIXER AND THE LEDS LIGHTS ON CHANNEL 3 AND 4 ARE ALWAYS ON

CAN SOMEONE TELL ME WHAT IS THE PROBLEM '

THANK YOU

PROBLEMA

AMBAS AS LUZES DE LEDS DO CANAL 3 E 4 FICAM SEMPRE LIGADAS.

AMBOS OS CANAIS FUNCIONAM NORMALMENTE