Remedy: Check that EEPROM is set properly. Record counter/adjustment values with the simulation to protect the data from being deleted. Cancel U2 trouble with SIM 16. Replace scanner PWB.
Code: U2-81
Description: Memory check sum error (Scanner) Scanner memory check sum error
Causes: EEPROM trouble EEPROM which is not initialized is installed. Control circuit freeze by noises Scanner PWB EEPROM access circuit trouble
Remedy: Check that EEPROM is set properly. Record counter/adjustment values with the simulation to protect the data from being deleted. Cancel U2 trouble with SIM 16. Replace scanner PWB.
Remedy: Check that EEPROM is properly inserted. Record counter/adjustment values with the simulation to protect the data from being deleted. Use SIM16 to cancel U2 trouble. Replace the Controller PWB.
Code: U2-91
Description: Memory check sum error (PCU) PCU memory check sum error
Causes: EEPROM trouble EEPROM which is not initialized is installed. EEPROM is not initialized. PCU PWB EEPROM access circuit trouble Hang of control circuit due to noises
Remedy: Check that EEPROM is properly inserted. Save the counter/adjustment values with the simulation. Use SIM16 to cancel U2 trouble. Replace the Controller PWB.
Code: U6-00
Description: Desk/LCC communication trouble Desk/LCC communication error Communication cable test error after turning on the power or exiting SIM.
Causes: Improper connection or disconnection of connector and harness Desk control PWB trouble Control PWB (PCU) trouble Noise or interference
Remedy: Canceled by turning OFF/ON the power. Check connection of the harness and connector in the communication line.
Code: U6-01
Description: Desk/LCC No. 1 tray lift-up trouble
Causes: Sensor trouble Tray trouble Defective connection or disconnection between the PWB and the motor. Desk control PWB trouble Lift-up motor trouble
Remedy: Use SIM4-2 to check the upper limit sensor detection. Use SIM4-3 to check the lift-up motor operation.