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C0000 Main Motor Failure
• The Transport Motor Lock signal remains set to H for a set period of time while the Transport Motor is turning copyir.com 1 Check the M2 connector for proper connection, and correct as necessary 2 Check the M2 for proper drive coupling, and correct as necessary copyir.com 3 M2 operation check copyir.com 4 Replace PWB-A copyir.com 5 Replace PU1 copyir.com
C0010 Imaging Unit Motor Failure
• The Imaging Unit Motor Lock signal remains set to H for a set period of time while the Imaging Unit Motor is turning copyir.com • The Imaging Unit Motor Lock signal remains set to L for a set period of time while the Imaging Unit Motor remains stopped copyir.com 1 Check the M1 connector for proper connection, and correct as necessary copyir.com 2 Check the M1 for proper drive coupling, and correct as necessary 3 M1 operation check copyir.com 4 Replace PWB-A copyir.com 5 Replace PU1 copyir.com
C0044 EDH Fan Motor Failure
• Refer to the Service Manual for the relevant option copyir.com
C0045 Cooling Fan Failure
• The Cooling Fan Motor Lock signal remains set to H for a set period of time while the Cooling Fan Motor is turning copyir.com • The Cooling Fan Motor Lock signal remains set to L for a set period of time while the Cooling Fan Motor remains stopped copyir.com 1 Check the motor connectors for proper connection, and correct as necessary copyir.com 2 Check the fan for possible overload, and correct as necessary copyir.com 3 M5 operation check copyir.com 4 Replace PWB-A copyir.com
C004E Power Unit Cooling Fan Failure
• The Power Unit Cooling Fan Motor Lock signal remains set to H for a set period of time while the Power Unit Cooling Fan Motor is turning copyir.com • The Power Unit Cooling Fan Motor Lock signal remains set to L for a set period of time while the Power Unit Cooling Fan Motor remains stopped copyir.com 1 Check the motor connectors for proper connection, and correct as necessary copyir.com 2 Check the fan for possible overload, and correct as necessary copyir.com 3 M4 operation check copyir.com 4 Replace PWB-A copyir.com
C004F IU Cooling Fan Failure
• The I/U Cooling Fan Motor Lock signal remains set to H for a set period of time while the I/U Cooling Fan Motor is turning copyir.com • The I/U Cooling Fan Motor Lock signal remains set to L for a set period of time while the I/U Cooling Fan Motor remains stopped copyir.com 1 Check the motor connectors for proper connection, and correct as necessary copyir.com 2 Check the fan for possible overload, and correct as necessary copyir.com 3 M6 operation check copyir.com 4 Replace PWB-A copyir.com
C0214 Abnormal Image Transfer Voltage
• The image transfer voltage exceeds 100 V for the set period of time while the Imaging Unit Motor remains stopped copyir.com 1 Check the installation of the Image Transfer Roller copyir.com 2 Replace TH1 copyir.com
C0500 Fusing Warm-Up Failure (Main)
• The Fusing Roller Thermistor does not detect the required temperature within 30 sec copyir.com after a warm-up cycle has begun; therefore, the copier does not complete the warm-up cycle copyir.com • The temperature of the Fusing Rollers does not reach the required level even after the set period of time has elapsed during a warm-up cycle copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Power Switch is set to ON, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Power Switch is set to ON, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and – 3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and – 3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0501 Fusing Warm-Up Failure (Sub)
• The Fusing Roller Sub Thermistor does not detect the required temperature within 30 sec copyir.com after a warm-up cycle has begun; therefore, the copier does not complete the warm-up cycle copyir.com • The temperature of the Fusing Rollers does not reach the required level even after the set period of time has elapsed during a warm-up cycle copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Power Switch is set to ON, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Power Switch is set to ON, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and – 3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and – 3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0510 Low Fuser Temperature Failure (Main)
• The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature below 105C during standby copyir.com • The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature below 105C during printing copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and -3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and -3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0511 Low Fuser Temperature Failure (Sub)
• The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature below 105C during standby copyir.com • The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature below 105C during printing copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and -3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and -3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0520 High Fuser Temperature Failure (Main)
• The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON copyir.com • The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and -3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and -3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0521 High Fuser Temperature Failure (Sub)
• The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON copyir.com • The Fusing Roller Thermistor and Fusing Roller Sub Thermistor are detected to be at a temperature above 240C when the Power Switch is set to ON copyir.com 1 Check that the Fusing Roller Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 2 Check that the Fusing Roller Sub Heater Lamp comes on when the Right-Side Door is opened, then closed, and correct or replace as necessary copyir.com 3 Check the installation of the Fusing Roller Thermistor and the Fusing Roller Sub Thermistor, and correct or clean as necessary copyir.com 4 Check the operation of the Fusing Roller Thermistor copyir.com Remove CN80 (4P), and then check that the resistance across CN80-2 and -3 on the Thermistor is infinity copyir.com 5 Check the operation of the Fusing Roller Sub Thermistor copyir.com Remove CN81 (4P), and then check that the resistance across CN81-2 and -3 on the Thermistor is infinity copyir.com 6 Check the continuity of the Fusing Roller Heater Lamp copyir.com Correct or replace as necessary copyir.com 7 Check the continuity of the Fusing Roller Sub Heater Lamp copyir.com Correct or replace as necessary copyir.com 8 Replace PU1 copyir.com 9 Replace PWB-A copyir.com
C0900 3rd Drawer Lift-Up Motor Failure 1 Check the connectors of each motor and sensor for proper connection, and correct as necessary copyir.com 2 Check the connector of each motor for proper drive coupling, and correct as necessary copyir.com 3 Check the PU1 connector for proper connection, and correct as necessary copyir.com 4 PC6 sensor check copyir.com 5 PC12 sensor check copyir.com 6 PC114-PF sensor check copyir.com 7 PC123-PF sensor check copyir.com 8 M7 operation check copyir.com 9 M8 operation check copyir.com 10 M124-PF operation check copyir.com 11 M125-PF operation check copyir.com 12 Replace PWB-A copyir.com 13 Replace the PWB-C2 PF Control Board copyir.com 14 Replace PU1 copyir.com
C0910 2nd Drawer Lift-Up Motor Failure 1 Check the connectors of each motor and sensor for proper connection, and correct as necessary copyir.com 2 Check the connector of each motor for proper drive coupling, and correct as necessary copyir.com 3 Check the PU1 connector for proper connection, and correct as necessary copyir.com 4 PC6 sensor check copyir.com 5 PC12 sensor check copyir.com 6 PC114-PF sensor check copyir.com 7 PC123-PF sensor check copyir.com 8 M7 operation check copyir.com 9 M8 operation check copyir.com 10 M124-PF operation check copyir.com 11 M125-PF operation check copyir.com 12 Replace PWB-A copyir.com 13 Replace the PWB-C2 PF Control Board copyir.com 14 Replace PU1 copyir.com
C0920 1st Drawer Lift-Up Motor Failure 1 Check the connectors of each motor and sensor for proper connection, and correct as necessary copyir.com 2 Check the connector of each motor for proper drive coupling, and correct as necessary copyir.com 3 Check the PU1 connector for proper connection, and correct as necessary copyir.com 4 PC6 sensor check copyir.com 5 PC12 sensor check copyir.com 6 PC114-PF sensor check copyir.com 7 PC123-PF sensor check copyir.com 8 M7 operation check copyir.com 9 M8 operation check copyir.com 10 M124-PF operation check copyir.com 11 M125-PF operation check copyir.com 12 Replace PWB-A copyir.com 13 Replace the PWB-C2 PF Control Board copyir.com 14 Replace PU1 copyir.com
C0950 4th Drawer Lift-Up Motor Failure 1 Check the connectors of each motor and sensor for proper connection, and correct as necessary copyir.com 2 Check the connector of each motor for proper drive coupling, and correct as necessary copyir.com 3 Check the PU1 connector for proper connection, and correct as necessary copyir.com 4 PC6 sensor check copyir.com 5 PC12 sensor check copyir.com 6 PC114-PF sensor check copyir.com 7 PC123-PF sensor check copyir.com 8 M7 operation check copyir.com 9 M8 operation check copyir.com 10 M124-PF operation check copyir.com 11 M125-PF operation check copyir.com 12 Replace PWB-A copyir.com 13 Replace the PWB-C2 PF Control Board copyir.com 14 Replace PU1 copyir.com
C0960 Manual Bypass Paper-Lifting Failure
• The Manual Feed Tray Lift-Up Sensor (PC29) is not blocked or unblocked even after the set period of time has elapsed after the Manual Paper Feed Pick-Up Solenoid (SL3) is energized after the manual feed paper take-up operation has begun copyir.com 1 Check the SL3 connector for proper connection, and correct as necessary copyir.com 2 PC29 sensor check copyir.com 3 SL3 operation check copyir.com 4 Replace PWB-A copyir.com 5 Replace PU1 copyir.com
C0990 LCC Elevator Motor Failure
• The Elevator Motor Pulse Sensor (PC10-LCC) cannot detect both edges of H/L even after the set period of time has elapsed while the Elevator Motor (M5-LCC) is turning backward/forward (raise/lower) copyir.com 1 Check the motor connectors and other connectors for proper connection, and correct as necessary copyir.com 2 PC10-LCC sensor check copyir.com 3 M5-LCC operation check copyir.com 4 Replace PWB-A copyir.com
C0991 LCC Lift Failure
• The Tray Upper Limit Sensor (PC4-LCC) is not unblocked even after the set period of time has elapsed after the paper lift-up operation has begun copyir.com • The Tray Upper Limit Sensor (PC4-LCC) is not unblocked even after the set pulse is detected by the Elevator Motor Pulse Sensor (PC10-LCC) after the paper lift-up operation has begun copyir.com • The Tray Upper Limit Sensor (PC4-LCC) is not unblocked even after the set period of time has elapsed with paper loaded during the paper lift-up operation copyir.com • The Tray Lower Position Sensor (PC13-LCC) is not blocked even after the set pulse is detected by the Elevator Motor Pulse Sensor (PC10-LCC) after the paper lift-up operation has begun copyir.com • The Tray Lower Position Sensor (PC13-LCC) is not blocked even after the set period of time has elapsed after the lowering operation has begun copyir.com • The Tray Lower Position Sensor (PC13-LCC) is not unblocked even after the set pulse is detected by the Elevator Motor Pulse Sensor (PC10-LCC) after the lowering operation has begun copyir.com • The Tray Upper Limit Sensor (PC4-LCC) is not blocked even after the set pulse is detected by the Elevator Motor Pulse Sensor (PC10-LCC) after the paper lift-up operation has begun copyir.com • The Lower Limit Sensor (PC7-LCC) is not unblocked during the lowering operation copyir.com 1 Check the sensor connector for proper connection, and correct as necessary copyir.com 2 PC4-LCC sensor check copyir.com 3 PC13-LCC sensor check copyir.com 4 PC10-LCC sensor check copyir.com 5 PC7-LCC sensor check copyir.com 6 Replace PWB-C1 LCC copyir.com
C0996 LCC Lock Release Failure
• The drawer cannot be determined to be out of position even after the set period of time has elapsed after the Tray Lock Solenoid (SL1-LCC) is energized after the lowering operation is finished copyir.com 1 Check the SL1-LCC connector for proper connection, and correct as necessary copyir.com 2 SL1-LCC operation check copyir.com 3 Replace PWB-C1 LCC copyir.com
C0997 LCC Shift Gate Operation Failure
• The Shift Gate Home Position Sensor (PC14-LCC) cannot be set to L even after the set period of time has elapsed after the operation of the Shift Gate Motor (M3-LCC) has begun with the Shift Gate Home Position Sensor (PC14-LCC) set to L copyir.com 1 Check the PC14-LCC connector for proper connection, and correct as necessary copyir.com 2 PC14-LCC sensor check copyir.com 3 M3-LCC operation check copyir.com 4 Replace PWB-C1 LCC copyir.com
C0998 LCC Shift Failure
• The Shifter Return Position Sensor (PC11-LCC) is not unblocked even after the set period of time has elapsed after the shift operation has begun (shifter is moved to the right) copyir.com • The Shifter Return Position Sensor (PC11-LCC) is not unblocked even after the set pulse is detected by the Shift Motor Pulse Sensor (PC8-LCC) after the shift operation has begun (shifter is moved to the right) copyir.com • The Shifter Home Position Sensor (PC12-LCC) is not unblocked even after the set pulse is detected by the Shift Motor Pulse Sensor (PC8-LCC) after the shift operation has begun (shifter is moved to the right) copyir.com • The Shifter Home Position Sensor (PC12-LCC) is not unblocked even after the set period of time has elapsed after the return operation has begun (shifter is moved to the left) copyir.com • The Shifter Home Position Sensor (PC12-LCC) is not unblocked even after the set pulse is detected by the Shift Motor Pulse Sensor (PC8-LCC) after the return operation has begun (shifter is moved to the left) copyir.com • The Shifter Return Position Sensor (PC11-LCC) is not unblocked even after the set pulse is detected by the Shift Motor Pulse Sensor (PC8-LCC) after the return operation has begun (shifter is moved to the left) copyir.com 1 Check the connector for proper connection, and correct as necessary copyir.com 2 PC8-LCC sensor check copyir.com 3 PC11-LCC sensor check copyir.com 4 PC12-LCC sensor check copyir.com 5 Replace PWB-C1 LCC copyir.com
C099C LCC Shift Motor Failure
• The Shift Motor Pulse Sensor (PC8-LCC) cannot detect both the rising and falling edges of H/L even after the set period of time has elapsed while the Shift Motor (M4-LCC) is turning backward/forward (raise/lower) copyir.com 1 Check the motor connectors and other connectors for proper connection, and correct as necessary copyir.com 2 PC8-LCC sensor check copyir.com 3 M4-LCC operation check copyir.com 4 Replace PWB-C1 LCC copyir.com
C099D LCC Communication Failure
• Due to a software malfunction, etc copyir.com, the time on the watchdog timer has run out and a reset is performed copyir.com 1 Turn the copier off, then on again copyir.com 2 Check the connector for proper connection, and correct as necessary copyir.com 3 Replace PWB-C1 LCC copyir.com
C0B20 Staple Unit CD Drive Failure
C0B30 Aligning Plate 1 Drive Failure
C0B32 Aligning Plate 2 Drive Failure
C0B47 Paper-Lifter Drive Failure
C0B48 Exit Roller Pressure/ Retraction Failure
C0B4A Saddle Exit Roller Pressure/Retraction Failure
C0B4B Shutter Drive Failure
C0B4C Saddle Exit Motor Failure
C0B4D Saddle Advance/ Retract Guide Motor Failure
C0B4F Saddle Movable Guide Drive Failure
C0B50 Staple Drive Failure
C0B56 Saddle Staple 1 Drive Failure
C0B57 Saddle Staple 2 Drive Failure
C0B73 Punch Cam Motor Unit Failure
C0BA0 Elevator Motor Ascent/ Descent Drive Failure
C0BC2 Crease Motor Drive Failure
C0F32 ATDC Sensor Failure
• The scanning value of the ATDC Sensor is less than 7% while the Imaging Unit Motor is turning copyir.com • The scanning value of the ATDC Sensor is more than 19% while the Imaging Unit Motor is turning copyir.com 1 Check the ATDC sensor connector for proper connection, and correct as necessary copyir.com 2 Remove the Developing Unit from the Imaging Unit, and then replace UN2 copyir.com 3 Run F8 copyir.com 4 Replace PWB-A copyir.com 5 Replace PU1 copyir.com
C0F33 ATDC Adjustment Failure
• The adjustment of the ATDC control voltage could not be completed in the set period of time when function F8 is run copyir.com • The ATDC control voltage was not within the range of 5 copyir.com39 V to 8 copyir.com15 V when function F8 is run copyir.com 1 Check the ATDC sensor connector for proper connection, and correct as necessary copyir.com 2 Remove the Developing Unit from the Imaging Unit, and then replace UN2 copyir.com 3 Run F8 copyir.com 4 Replace PWB-A copyir.com 5 Replace PU1 copyir.com
C12D0 MIO Device Failure
• The MIO device does not operate properly copyir.com 1 Turn OFF, then ON, the power copyir.com 2 Check the CLAN Board connectors for proper connection and correct as necessary copyir.com 3 Check the MFB3 Board connectors for proper connection and correct as necessary copyir.com 4 Change the CLAN Board copyir.com 5 Change the MFB3 Board copyir.com
C1300 Polygon Motor Failure
• The Polygon Motor Lock signal could not be detected within the set period of time after the Polygon Motor is energized copyir.com (Faulty start detection) • No First Lock signals are detected during the 1second period that starts 1 second after a First Lock signal copyir.com (Faulty lock signal detection) • The Polygon Motor Lock signal could not be detected after the set period of time has elapsed while the Polygon Motor is turning copyir.com (Out-of-timing lock detection) • The Polygon Motor Lock signal is set to ON for longer than the set period of time while the Polygon Motor remains stopped copyir.com (Abnormal lock detection)
C1330 Main Unit Communication Failure
• Communications with the Master Board and the MFB3 Board fail copyir.com 1 Check the MFB3 Board connector for proper connection, and correct as necessary copyir.com 2 Check the PWB-A Board connector for proper connection, and correct as necessary copyir.com 3 Check the flat cable between MFB3 and lPWB-A for proper connection, and correct as necessary copyir.com 4 Turn the copier off, then on again copyir.com 5 Replace the MFB3 Board copyir.com 6 Replace the PWB-A Board copyir.com
C133A Main Unit G/A Communication Failure
• Communications with the gate array for expansion I/O (the IC mounted on the Master Board) fail copyir.com 1 Turn the copier off, then on again copyir.com 2 Check each control board and the Master Board for proper connection, and correct as necessary copyir.com 3 Replace the Master Board if necessary copyir.com
C133B Exit Option Paper Transport Failure
• The connection status of a finishing option is changed after the copier has been turned on copyir.com 1 Turn the copier off, then on again copyir.com 2 Check each control board and the Master Board for proper connection, and correct as necessary copyir.com 3 Replace the appropriate Control Board and the Master Board if necessary copyir.com
C13D0 EEPROM Failure
• An EEPROM where no initial data is written is detected copyir.com 1 Unplug and plug in the power cord, and then turn off and turn on the copier copyir.com 2 Check the EEPROM on the Master Board for proper connection, and correct as necessary copyir.com 3 Replace PWB-A copyir.com 4 Replace the EEPROM copyir.com
C13E0 Flash ROM Failure
• The Flash ROM data was determined to be faulty when the unit was turned on copyir.com 1 Unplug and plug in the power cord, and then turn off and turn on the copier copyir.com 2 The firmware data is overwritten copyir.com 3 Replace PWB-A copyir.com
C13F0 HSYNC Detection Failure
• No SOS falling edges are detected within the set period of time after laser emission began while the Polygon Motor is turning copyir.com • No SOS falling edges are detected while VIA remains ON copyir.com 1 Turn the copier off, then on again copyir.com 2 Check PH Unit and the Master Board connectors for proper connection, and correct as necessary copyir.com 3 Replace the PH Unit copyir.com 4 Replace PWB-A copyir.com
