Is the CDJ-2000 or CDJ-900 connected to the PC1 or PC2 terminal?
When a player is connected to the PC1 or PC2 terminal and has the same player number as the CDJ, the player connected last cannot be recognized, a message is displayed and the channel number flashes.
Connect the CDJ-2000 or CDJ-900 to the LINK 1, 2, 3 or 4 terminal.