DDJ1000 Support

Hello my Names Dedy . please, I have a DDJ1000, recently I had to clean the JOGs due to impurities in the rollers, when reconnecting I noticed that the audio output of the XLR connectors is coming out with low audio when I connect it to my speakers, the RCA outputs are already signal coming out perfectly. could you help me what can be this low audio signal in the XLR connectors?