JCM Part No . 960 - 000076R _ Rev . 1 © 2007, JCM - American Corporation 4 - 2 Section 4 World Bill Acceptor (WBA® - 1x/2x - SS & SS2) Disassembly/Reassembly Acceptor Unit Disassembly Upper Sensor Circuit Board Removal Perform the following steps to remove the WBA Upper Sensor Printed Circuit Board: 1 . While pushing down on the two side latches with a small screwdriver ( See Figure 4 - 4 a), slide the metal cover section of the Acceptor in the direction of the large arrow shown in Figure 4 - 4 b . 2 . Disconnect the harness plug from the Upper Sensor Board ( See Figure 4 - 5 a) . 3 . Remove the three (3) Upper Sensor Board mounting screws ( See Figure 4 - 5 b) and lift the board up and off the unit . Lower Sensor Circuit Board Removal Perform the following steps to remove the WBA Lower Sensor Printed Circuit Board: 1 . Remove the four (4) Lower Sensor Board Cover mounting screws ( See Figure 4 - 6 a) located on each side of the Acceptor assembly . 2 . Carefully lift the Lower Sensor Board Cover up ( See Figure 4 - 6 b) and disconnect the har - ness plug from the Lower Sensor Board to remove the cover . ( See Figure 4 - 6 c) 3 . Disconnect the two (2) harness plugs from the Lower Sensor Board ( See Figure 4 - 7 a) . 4 . Remove the three (3) Lower Sensor Board mounting screws ( See Figure 4 - 7 b) and lift the board up and off the unit . a) a) b) Figure 4 - 4 WBA Acceptor’s Upper Sensor Board Cover Removal a) b) b) b) Figure 4 - 5 WBA Acceptor’s Upper Sensor Board Removal b) a) a) c) Figure 4 - 6 WBA Acceptor’s Lower Sensor Board Cover Removal a) a) b) b) b) Figure 4 - 7 WBA Acceptor’s Lower Sensor Board Removal