JS-503 - general
Contents
1. ii pee e ee KONICA MINOLTA SERVICE MANUAL JS 503 2005 04 KONICA MINOLTA BUSINESS TECHNOLOGIES INC Ver 1 0 After publication of this service manual parts and mechanism may be subject to change for improvement of their performance Therefore the descriptions given in this service manual may not coincide with the actual machine When any change has been made to the descriptions in the service manual a revised version will be issued with a revision mark added as required Revision mark To indicate clearly a section revised show 4 to the left of the revised section A number within N represents the number of times the revision has been made To indicate clearly a section revised show in the lower outside section of the correspond ing page A number within 4 represents the number of times the revision has been made NOTE Revision marks shown in a page are restricted only to the latest ones with the old ones deleted When page revised in Ver 2 0 has been changed in Ver 3 0 The revision marks for Ver 3 0 only are shown with those for Ver 2 0 deleted When page revised in Ver 2 0 has not been changed in Ver 3 0 The revision marks for Ver 2 0 are left as they are 2005 04 ee Issue of the first edition Date Service manual Ver Revision mark Descriptions of revision Field Service Ver 1 0 Apr 2005 CONTENTS General 1 Product2. specification 2 2 1 Disassembly Adjustment prohibited items 2 2 Disassembly Assembly procedure 2 2 1 Control Board PWB A JOB 2 2 2 Paper Detecting Board PWB B JOB Troubleshooting 3 3 1 Electrical Components Check Procedure 3 1 1 vao 3 1 2 3 1 3 Solenoid 3 1 4 RECON 3 1 5 4 Jam Display m m 4 1 1 Initial Check Items 5 Malfunction code 5 1 Trouble COGO tnde ende tut n Ruso 5 2 How lO T6SQl 53 TEN 5 3 1 COB60 Bin Switching Motor Malfunction JS 503 o gt gt Troubleshooting Field Service Ver 1 0 Apr 2005 ENEI li Field Service Ver 1 0 Apr 2005 1 Product specification General 1 Product specification e LO Type Add on drawer Installation Built into the exit section of the copier Paper Storage System Moving drawer system Capacities PI pajp 199 Sheets ASR 75 sheets other than A4 R Load height up to 22 mm ENTM film Paper Thick pap
3. ecessary Check M1 JOB for correct drive cou pling and correct as necessary 4 M1 JOB operation check M1 JOB operation check check 16 16 PWB A JOB B PC32 JOB sensor check PJ4A JOB 3 ON E EN PWB A JOB m PC33 JOB sensor check PJ4A JOB 6 ON 7 Troubleshooting 15 5 Malfunction code Field Service Ver 1 0 Apr 2005 JS 503 Blank page 9 Fa 5 n 16
4. en the switch is activated the control oard JS 503 4025T523AB 3 1 3 Solenoid Replace the control Does the output signal of the control board change from H to L NO board when the solenoid is activated Replace the solenoid 9 5 4025T522AA 3 1 4 Clutch Replace the control Does the output signal of the control board change from H to L NO board when the clutch is activated Replace the clutch 4025T528AA 10 Field Service Ver 1 0 Apr 2005 3 Introduction 3 1 5 Motor Replace the control board Replace the motor Does the REM signal of the master board change from H to L 4 when motor is turned on the control oard Does the LOCK signal switch to H when the machine goes into standby 4025T526AA Does the input signal of the master board change from H to L Replace the motor when the motor is turned on The input signal differs depend Replace the control ing on the rotation direction ne board 4025T525AA de ED Tei 5 il VE Replace the motor or Are the relay connector of the motor and the print jack of the the control board control board correctly connected Connect the connec tor or the print jack 4025T527AA 17 4 Jam Display Field Service Ver 1 0 Apr 2005 4 Jam Display 4 1 Solution 4 1 1 Initial Check Items JS 503 When a paper misfeed occurs fi
5. er 91 to 157 ENTM 10 sheets 20 sheets Type Postcards labels and enve lopes 100 sheets A4 R Recycled Paper 60 to 90 g m 50 sheets other than A4 R Load height up to 22 mm 150 sheets A4 R 75 sheets other than A4 R Power Requirements DC24 V DC5 V supplied from the copier Power Consumption 24 W or less Operating Environment Conforms to that of the copier 1 Product specification Field Service Ver 1 0 Apr 2005 oF 09 o Blank page Field Service Ver 1 0 Apr 2005 2 Other Maintenance 2 Other 2 1 Disassembly Adjustment prohibited items JS 503 A Paint locked Screws NOTE Paint locked screws show that the assembly or unit secured can only be adjusted or set at the factory and should not be adjusted set or removed in the field B Red Painted Screws NOTES When the screws are removed the red paint is coated on the points where read justment is required Once the red painted screw is removed or loosened you should make adjustment Accordingly check the adjustment items in operation manual and make necessary adjustment Note that when two or more screws are used on the part in questions only one representative screw may be marked with red paint C Variable Resistors on Board NOTE e Do not turn the variable resistors on boards for which no adjusting instructions are given in Adjustment Setting o je m gt Removal of PWB
6. has started turning backward If both the Upper Home Position Sensor and the Lower Home Position Sensor are HIGH during an initial operation e f the Lower Home Position Sensor PC33 does not go LOW at a time 2 5 sec after the Bin Switching Motor M1 has started turning forward the Bin Switch ing Motor is kept deenergized for a given period of time and then energized again to turn backward The Upper Home Position Sensor PC32 does not go LOW after the motor has started turning backward When the Lower Home Position Sensor PC33 goes LOW the Bin Switching Motor M1 starts turning backward The Upper Home Position Sensor PC32 does not go LOW at a time 2 5 sec after the motor has started turning back ward When the Lower Home Position Sensor PC33 goes LOW the Bin Switching Motor M1 starts turning backward The Lower Home Position Sensor PC33 does not go HIGH at a time 1 sec after the motor has started turning backward Troubleshooting 14 Field Service Ver 1 0 Apr 2005 5 Malfunction code B Action Relevant Electrical Components Bin Switching Motor M1 JOB Control Board PWB A JOB JS 503 Upper Home Position Sensor PC32 JOB Master Board PWB A Lower Home Position Sensor PC33 JOB WIRING DIAGRAM Step Operations Location 6 Control signal Electrical Components Check sensor connectors for proper connection and correct as necessary 5 Check M1 JOB connectors for proper connection and correct as n
7. n A Detection Timing If the Upper Home Position Sensor is LOW during an initial operation The Lower Home Position Sensor PC33 is LOW when the Bin Switching Motor M1 starts turning forward If the Lower Home Position Sensor PC33 does not go LOW at a time 2 5 sec after the Bin Switching Motor M1 has started turning forward the Bin Switch ing Motor is kept deenergized for a given period of time and then energized again to turn backward The Upper Home Position Sensor PC32 does not go LOW after the motor has started turning backward The Upper Home Position Sensor PC32 does not go HIGH at a time 1 sec after the Bin Switching Motor M1 has started turning forward When the Lower Home Position Sensor PC33 goes LOW the Bin Switching Motor M1 starts turning backward The Upper Home Position Sensor PC32 does not go LOW at a time 2 5 sec after the motor has started turning back ward When the Lower Home Position Sensor PC33 goes LOW the Bin Switching Motor M1 starts turning backward The Lower Home Position Sensor PC33 does not go HIGH at a time 1 sec after the motor has started turning backward JS 503 If the Lower Home Position Sensor is LOW during an initial operation The Upper Home Position Sensor PC32 does not go LOW at a time 2 5 sec after the Bin Switching Motor M1 has started turning backward The Lower Home Position Sensor PC33 does not go HIGH at a time 1 sec after the Bin Switching Motor M1
8. rst perform the following initial checks Does paper meet product specifications Replace paper Replace paper Is the paper curled wavy or damp Instruct the user on the correct paper stor age procedures Is a foreign object present along the paper path or is the Glean or change the paper paper path deformed or worn Are the Paper Separator Fingers dirty deformed or Clean or replace the defective Paper Sepa worn rator Finger Are rolls rollers dirty deformed or worn Clean or replace the defective roll roller Are the Edge Guide and Trailing Edge Stop at the correct Set as necessary position to accommodate the paper Are the actuators operational and checked for correct Correct or replace the defective actuator operation 9 Fa 5 n 12 Field Service 1 0 Apr 2005 5 Malfunction code 5 Malfunction code 5 1 Trouble code JS 503 The copiers CPU performs self diagnostics function that on detecting a malfunction gives the corresponding malfunction code and maintenance call mark on the Touch Panel 1 MACHINE TROUBLE CHHHH 4980P550DA 5 2 Howto reset COB60 Bin Switching Motor malfunction Turn OFF and ON the Power Switch de ED Tei 5 il 5 Malfunction code Field Service Ver 1 0 Apr 2005 5 3 Solution 5 3 1 COB60 Bin Switching Motor Malfunctio
9. s NOTES e When removing a circuit board or other electrical component refer to Handling of PWBs and follow the corresponding removal procedures The removal procedures given in the following omit the removal of connectors and screws securing the circuit board support or circuit board Where it is absolutely necessary to touch the ICs and other electrical components on the board be sure to ground your body 2 Other Field Service Ver 1 0 Apr 2005 2 2 Disassembly Assembly procedure 2 2 1 Control Board PWB A JOB JS 503 PWB A JOB Q o c o m e 4689D501AA 7 Remove the control panel 2 Remove the indicator lamp and one connector 4 Remove one screw unplug one con nector and remove the Total Counter Field Service Ver 1 0 Apr 2005 2 Other 5 Remove one Sensor Assy mounting screw JS 503 4689D003AA 6 Unplug two connectors 7 Remove the harness from the edge cover and remove the Sensor Assy 4689D004AA 8 Disconnect the connector of the Bin Switching Motor me 9 Disconnect one connector from the copier 4689D006AA o m e 2 Other Field Service Ver 1 0 Apr 2005 10 Remove two screws and the Control Board Assy 11 Unplug all connectors from the Con trol Board 12 Remove two screws two PWB sup ports and the Control Board 4689D009AA Field Ser
10. vice Ver 1 0 Apr 2005 2 Other 2 2 2 Paper Detecting Board PWB B JOB JS 503 PWB B JOB Oo me gt 46890501 7 Remove control panel 2 Unplug one connector 3 Holding onto both ends remove the indicator lamp cover 4689D011AB 49 oO m cs gt 2 Other 4689D012AB 4689D013AA 4689D014AA Field Service Ver 1 0 Apr 2005 4 Press down one tab and remove the Paper Detecting Board from the Front Cover 5 Remove one Paper Detecting Board Assy mounting screw 6 Unplug one connector and remove the Paper Detecting Board Field Service Ver 1 0 Apr 2005 3 Introduction Troubleshooting 3 Introduction JS 503 Information required for troubleshooting and steps that must be performed are described in this chapter 31 Electrical Components Check Procedure f a paper misfeed or malfunction occurs perform the following operations to check the condition of the electrical components 3 1 1 Sensor NO Replace the sensor Does the input signal of the control board change when the ES E sensor light is interrupted L L the control oard 4025T520AA E e pus 4025T521AA 3 Introduction Field Service Ver 1 0 Apr 2005 3 1 2 Switch NO the switch Does the input signal NO of the control board change from L om E to H wh
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