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CHAPTER 8: TROUBLESHOOTING
FIGURE A FIGURE B
8.7 TROUBLESHOOTING - ERROR 02B4
ECB use on SC5x frame and EP84 (ECB system E5x).Resistor use on HUREA5x frame 
ERROR CODE 02B4
1)  SYMPTOM:
02B4 – Resistance type error.
2)  SOLUTION:
1)  Check if the machine has the correct resistance system (resistor or ECB) (Figures A & B). 
2)  Check if the console is matched with the correct frame, and that the Machine Type is set correctly in Engineering Mode.  
3)  Replace the LCB.
4)..Replace the UCB.  .