“error 0004” is displayed on my PIONEER DJM 2000

Hello,

“error 0004” is displayed on my PIONEER DJM 2000 (corrupted data on EEPROM (IC2003) on PCIF Assy). I got the instructions from my local Pioneer dealer. Chip s-24cs64a01 are replaced with the original Pioneer part.  But an error still appears on the screen.  What I need to do with this? Please help!