JCM Part No . 960 - 000076R _ Rev . 1 © 2007, JCM - American Corporation A - 3 Troubleshooting World Bill Acceptor (WBA® - 1x/2x - SS & SS2) Appendix A Motor continues to run . Upper Guide is open . Firmly close the guide . A foreign object or a jammed bill is stuck in the Transport path . Open the Guide, remove the foreign object or jammed bill, and close the cover . Motor driver failure . Refer to Table A - 5 on page 5 of this Appendix and conduct a Forward/Reverse Motor Rotation Test . Can not enter the TEST mode . Incorrect DIP Switch settings . Set the DIP Switch No . 8 to ON, and re - supply power to the WBA . CPU Board failure . Exchange the CPU Board with a known good board . Refer to “Transport CPU Circuit Board Removal” on page 4 - 3 of Section 4 regarding Circuit Board Removal . Table A - 1 General Fault Conditions (Continued) Symptoms/Error Messages Possible Fault Causes Corrective Action Required Table A - 2 Adjustment Fault Conditions Symptoms/Error Messages Possible Fault Causes Corrective Action Required Can not start the ADJx0Win _ e . exe program by dou - ble - clicking on its icon . PC Operating System (OS) is not compatible . The current Adjustment program only supports the Windows 2000/XP Operating System . The program files are cor - rupted . Request the correct programs from JCM . Communication Error . Wrong or inappropriate connections Check the PC harness connections and the related WBA interface connectors . Check for any bent, missing or damaged pins in the connector plug and receptacle . WBA DIP Switch settings are incorrect . Set the WBA DIP Switches 1 to 7 OFF and Switch 8 to ON . Recycle the power supplied to the external maintenance power supply (P/N 550 - 100042) . CPU Board failure . Exchange the CPU Board with a known good one . Refer to Section 4 regarding Circuit Board Removal . Adjustment Error . Incorrect reference paper type . Follow the instruction provided in the ADJx0Win _ e . exe program and use the correct reference paper recom - mended . Upper/Lower Sensor Board failure . Change the Upper or Lower Sensor Board with a known good board . Refer to Section 4 regarding Circuit Board Removal . Table A - 3 Communication Fault Conditions Symptoms/Error Messages Possible Fault Causes Corrective Action Required Cannot communicate with host . DIP Switch settings are incorrect . Set all DIP Switches to OFF . Connectors are off or loosely connected . Firmly reconnect all of the communication connectors . Damaged connector pins . Check for any bent, missing or damaged pins in the con - nector plugs and mating receptacles . CPU Board is corrupted . Exchange the CPU Board with a known good one . Refer to “Transport CPU Circuit Board Removal” on page 4 - 3 of Section 4 regarding Circuit Board Removal . Incorrect Interface . Verify that the correct interface between the Host machine and the Bill Acceptor is being used .