Figure 6-173 8-bin Mailbox Diagnostic LED PCA (2 of 2) 3 Disconnect the 2 flat cables from the Diagnostic LED PCA (Figure 6-173, callout 2). 4 Remove the 1 screw that secures the Diagnostic LED PCA to the 8-bin Mailbox frame (callout 3). 5 Pull the Diagnostic LED PCA away from the 8-bin Mailbox frame. C4085-91087 8-bin Mailbox Removal and Replacement 357