Controller PCA 1 Disconnect the power cable (callout 1). 1 2 2 2 2 3 2 3 Figure 177. Controller PCA (1 of 2) 2 Disconnect the C-link cable (callout 2). 3 Remove all paper bins and the blind cover (see page 318). 4 Carefully lay the multi-bin mailbox on its front side. 5 Loosen one grounding screw and two self-tapping screws on the right side of the PCA cover (callout 3). 6 Remove two self-tapping screws and the grounding cable from the left side of the PCA cover (callout 4). 7 Open the cover to reveal the PCA. Notes about reinstalling: Reinstall the grounding cable. EN Multi-bin mailbox 327