JCM Part No . 960 - 000076R _ Rev . 1 © 2007, JCM - American Corporation A - 8 Appendix A World Bill Acceptor (WBA® - 1x/2x - SS & SS2) Troubleshooting Transport Sensor Locations Figure A - 3 WBA - 1X/2X Transport Sensor Locations Figure A - 3 provides the WBA - 1X/2X Sensor Locations . Figure A - 4 WBA - 1X/2X Sensor, Circuit Board and Motor Location Diagram Sensor, Circuit Board and Motor Locations Figure A - 4 provides the various WBA - 1X/2X Sensor, Circuit Board and Drive Motor Location .