Description: Memory check sum error (Scanner) When counter data sum error is detected.
Causes: EEPROM trouble Control circuit runaway due to noises Scanner PWB EEPROM access circuit trouble
Remedy: Case 1 Cause EEPROM trouble Check and remedy Check that the EEPROM is properly installed. In the simulation to prevent against delete of the counter data/adjustment values, write down the counter/adjustment values. Case 2 Cause Control circuit runaway due to noises Check and remedy Use SIM 16 to cancel the U2 trouble. Case 3 Cause Scanner PWB EEPROM access circuit trouble Check and remedy Replace the scanner PWB.
Code: U2-90
Description: EEPROM read/write error (PCU) EEPROM communication trouble (NACK detection) Retry 3 times
Causes: EEPROM trouble Insertion of EEPROM which is not initialized PCU PWB EEPROM access circuit trouble
Remedy: Case 1 Cause EEPROM trouble Check and remedy Check that the EEPROM is properly installed. In the simulation to prevent against delete of the counter data/adjustment values, write down the counter/adjustment values. Case 2 Cause Insertion of EEPROM which is not initialized Check and remedy Use SIM 16 to cancel the U2 trouble. Case 3 Cause PCU PWB EEPROM access circuit trouble Check and remedy Replace the PCU PWB.
Code: U2-91
Description: Memory check sum error (PCU) When POF data/counter data sum error is detected.
Causes: EEPROM trouble Control circuit runaway due to noises PCU PWB EEPROM access circuit trouble
Remedy: Case 1 Cause EEPROM trouble Check and remedy Check that the EEPROM is properly installed. In the simulation to prevent against delete of the counter data/adjustment values, write down the counter/adjustment values. Case 2 Cause Control circuit runaway due to noises Check and remedy Use SIM 16 to cancel the U2 trouble. Case 3 Cause PCU PWB EEPROM access circuit trouble Check and remedy Replace the PCU PWB.
Code: U5-30
Description: DSPF tray lift-up trouble Lift-up trouble is detected 5 times continuously.
Causes: STUD/STLD trouble. STUD does not turn on within the specified time. STLD does not turn off within the specified time.
Remedy: Check the harness and the connector of the STUD and STLD. Lift-up trouble unit check
Code: U5-31
Description: DSPF tray lift-down trouble STLD does not turn off within the specified time.
Causes: STUD/STLD trouble. STUD does not turn on within the specified time. STLD does not turn off within the specified time.
Remedy: Check the harness and the connector of the STUD and STLD. Lift-up trouble unit check
Code: U6-09
Description: LCC lift motor trouble • The upper limit sensor is not turned on within 24sec from starting the liftup motor. • The encoder input is not made within 0.2sec during rotation of the liftup motor. The upper limit SW is turned on during rotation of the liftup motor. When the above trouble occurs for 3 times continuously. • For the first time and the second time, it is a tray size error and the user pulls the tray. When the trouble occurs 3 time continuously that the upper limit sensor does not turn on.
Causes: Sensor trouble LCC control PWB trouble. Gear breakage. Lift motor trouble.
Remedy: Use SIM to check the sensor detection. Use SIM to check the lift motor operation. Use SIM 15 to cancel the trouble.