Note Remove the two screws in the sheet metal. Do not remove the screws in the SCB. 7 Remove two screws (callout 5). 5 Figure 152. Scanner controller board (3 of 4) 8 Slide the SCB toward you to remove it. 9 Remove four screws (callout 8) and remove the SCB from the mounting brackets. 8 Figure 153. Scanner controller board (4 of 4) C8523-90921 PCB assemblies 163