Description: Abnormal rotation signal of the FAN MAIN/FAN DUP is detected.
Causes: • FAN MAIN • FAN DUP • HARNESS ASSY LV TOP • LVPS • PWBA MCU
Remedy: 1 Check after turning the power OFF and ON. Does the error recur even when the power is turned off and back on again? Go to Step [2]. End of procedure 2 Check the connection of the FAN MAIN and the FAN DUP Check the connection state of the following items. • FAN MAIN - LVPS • FAN DUP - PWBA DUP Are P/J503 and P/J427 connected correctly? Go to Step [3]. Reconnect FAN MAIN and FAN DUP correctly. 3 Check the power voltage supply to FAN DUP. Measure the voltage between PWBA DUP ground <=> P/J427-1PIN. Is the power voltage (+24 V) output? Replace the FAN DUP. Go to Step [4]. 4 Check the connection between PWBA DUP and PWBA MCU Check the connection state between PWBA DUP and PWBA MCU. Are P/J428, P/J2720, P/J272, and P/J27 connected correctly? Go to Step [5]. Reconnect the P/J428, P/J2720, P/J272, and P/J27 correctly. 5 Check the continuity of the HARNESS ASSY DUP UNIT Is there normal continuity between P/J428 and P/J2720? Go to Step [6]. Replace the HARNESS ASSY DUP UNIT. 6 Check the continuity of the HARNESS ASSY FRONT COVER Is there normal continuity between P/J2720 and P/J272? Go to Step [7]. Replace the HARNESS ASSY FRONT COVER. 7 Check the continuity of the HARNESS ASSY R SIDE Is the continuity between P/J27 <=> P/J2720 normal? Go to Step [6]. Replace the HARNESS ASSY R SIDE. 8 Check the power voltage supply to PWBA DUP 1. Close the interlock switch (HARNESS ASSY INTERLOCK) before performing the following work. 2. Measure the voltage between PWBA MCU ground <=> P/J27-A17, A18PIN. Is the power voltage (approx. +24 V) output? Go to Step [9]. Replace the PWBA MCU. 9 Replace of the PWBA DUP Replace the PWBA DUP. Was the trouble fixed? End of procedure Go to Step [10]. 10 Check the power voltage supply to FAN MAIN Measure the voltage between LVPS ground <=> P503-1PIN. Is the power voltage (+24 V) output? Replace the FAN MAIN. Go to Step [11]. 11 Check the continuity of the HARNESS ASSY LV TOP Is the continuity between P/J14 <=> P/J501 normal? Go to Step [12]. Replace the HARNESS ASSY LV TOP. 12 Check the power voltage output from the LVPS. 1. Measure the voltage between LVPS ground <=> P503-1PIN. 2. Close the interlock switch (HARNESS ASSY INTERLOCK) before performing the following work. Is the power voltage (approx. +24 V) output? Replace the PWBA MCU. Replace the LVPS.
Code: 600
Description: Output of the ADC Sensor inside the TRANSFER UNIT is decreased.
Causes: • TRANSFER UNIT • PWBA MCU • HARNESS ASSY FRONT COVER • HARNESS ASSY R SIDE
Remedy: 1 Check after turning the power OFF and ON. Does the error recur even when the power is turned off and back on again? Go to Step [2]. End of procedure 2 Check the installation of the TRANSFER UNIT Is the TRANSFER UNIT installed correctly? Go to Step [3]. Reinstall the TRANSFER UNIT correctly. 3 Check the connection of the TRANSFER UNIT Check the connection state between TRANSFER UNIT and PWBA MCU. Are P/J2721, P/J272, and P/J27 connected correctly? Go to Step [4]. Reconnect the P/J2721, P/J272, and P/J27 correctly. 4 Check the continuity of the HARNESS ASSY FRONT COVER Is the continuity between P/J2721 <=> P/J272 normal? Go to Step [5]. Replace the HARNESS ASSY FRONT COVER. 5 Check the continuity of the HARNESS ASSY R SIDE Is the continuity between P/J27 <=> P/J272 normal? Go to Step [6]. Replace the HARNESS ASSY R SIDE. 6 Check the power voltage supply to the ADC Sensor in the TRANSFER UNIT. Measure the voltage between PWBA MCU ground <=> P/J27-A7PIN. Is the power voltage (approx. +5 V) output? Replace the TRANSFER UNIT. Replace the PWBA MCU.
Code: 610
Description: High temperature, low temperature, or high humidity that goes out of bounds is detected.
Remedy: 1 Check after turning the power OFF and ON Does the error recur even when the power is turned off and back on again? Go to Step [2]. End of procedure 2 Check the connection of the PWBA OHP SNR Check the connection state between PWBA OHP SNR and PWBA MCU. Are P/J2411, P/J241, and P/J24 connected correctly? Go to Step [3]. Reconnect P/J2411, P/J241, and P/J24 correctly. 3 Check the continuity of the HARNESS ASSY OHP SNR Is the continuity between P/J2411 <=> P/J241 normal? Go to Step [4]. Replace the HARNESS ASSY OHP SNR. 4 Check the continuity of the HARNESS ASSY OHP Is the continuity between P/J241 <=> P/J24? Go to Step [5]. Replace the HARNESS ASSY OHP. 5 Replace of the PWBA OHP SNR Replace the PWBA OHP SNR. Was the trouble fixed? End of procedure Go to Step [6]. 6 Replace of the PWBA MCU Replace the PWBA MCU. Was the trouble fixed? End of procedure Go to Step [7]. 7 Check the connection of the SENSOR HUM Check the connection state between SENSOR HUM and PWBA MCU. Are P/J261 and P/J26 connected correctly? Go to Step [8]. Reconnect P/J261 and P/J26 correctly. 8 Check the continuity of the HARNESS ASSY HUM Is the continuity between P/J261 <=> P/J26 normal? Go to Step [9]. Replace the HARNESS ASSY HUM. 9 Check the power voltage supply to SENSOR HUM. Measure the voltage between PWBA MCU ground <=> P/J26-4PIN. Is the power voltage (approx. +5 V) output? Replace the SENSOR HUM. Replace the PWBA MCU.
Code: 900
Description: NV-RAM in the PWBA MCU error - Communication error between the PWBA MCU and the PWBA EEPROM, CRUM in the FUSER UNIT, CRUM in the TRANSFER UNIT, or the HVPS.
Causes: • PWBA MCU • PWBA EEPROM XPRO • FUSER UNIT • TRANSFER UNIT
Remedy: 1 Check after turning the power OFF and ON Does the error recur even when the power is turned off and back on again? Go to Step [2]. End of procedure 2 Check after reinstalling the PWBA MCU Remove the PWBA MCU, and reinstall it properly. Does the error still occur after the replacement? Replace the PWBA MCU. End of procedure
Code: 901
Description: Firmware error
Causes: • PWBA MCU
Remedy: 1 Check after turning the power OFF and ON. Does the error recur even when the power is turned off and back on again? Go to Step [2]. End of procedure 2 Check the firmware version Is the firmware version latest? Go to Step [3]. Update the firmware. 3 Check after reinstalling the PWBA MCU Remove the PWBA MCU, and reinstall it properly. Does the error still occur after the replacement? Replace the PWBA MCU. End of procedure
Remedy: 1 Check the firmware version of the PWBA MCU Check the firmware version of the PWBA MCU. Is the version latest? Go to Step [2]. Update the firmware and go to step [2]. 2 Check the firmware version of the BOARD ASSY, MAIN Check the firmware version of the BOARD ASSY, MAIN. Is the version latest? Go to Step [3]. Update the firmware. 3 Check the continuity of HARNESS ASSY ESS 1. Disconnect P10 on the PWBA MCU. 2. Disconnect the CN601 on the BOARD ASSY, MAIN 3. Check each wiring for continuity. Do all of the wiring have normal continuity? Go to Step [4]. Replace the HARNESS ASSY ESS. 4 Replace the BOARD ASSY, MAIN Replace the BOARD ASSY, MAIN. Does the error still occur after the replacement? Replace the PWBA MCU. End of procedure