Chapter 99-9If automatic adjustment fails, "NG" appears. Perform the followingprocedure:Clean the platen guide of the DADF and the document glass of the host ma-chine, and then retry auto adjustment.9.4.4 DC Controller PCB9.4.4.1 Removing the DC Controller PCB 0011-5464LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / Kaser-Base MF6560PL / / LaserBase MF6580PL1) Detach the right cover, inner cove, delivery tray front cover, and deliverytray.2) Remove the speaker and power supply PCB.3) Remove the screw [1], and the remove the flexible cable stay [2].F-9-194) Disconnect all connectors from the DC controller PCB.5) Remove the five screws [1], and then remove the DC controller PCB [2].F-9-209.4.5 Powwer Supply PCB9.4.5.1 Removing the Power Supply PCB 0011-5465LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / Kaser-Base MF6560PL / / LaserBase MF6580PL1) Detach the right cover, inner cover, and delivery tray front cover, and thenremove the operation panel and delivery tray.2) Remove the speaker.3) Disconnect all connectors on the power supply PCB.4) Remove the five screws [1], and then remove the power supply PCB [2].F-9-219.4.6 Relay PCB9.4.6.1 Removing the Relay PCB 0011-5466LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / Kaser-Base MF6560PL / / LaserBase MF6580PL1) Detach the rear cover.2) Disconnect all connectors from the relay PCB.3) Remove the two screws [1] and relay PCB [2].F-9-229.4.7 NCU PCB9.4.7.1 Removing the NCU PCB 0011-5467LaserBase MF6530 / / LaserBase MF6540PL / LaserBase MF6550 / Kaser-Base MF6560PL / / LaserBase MF6580PL1) Detach the rear cover.2) Remove all connectors and flexible cables from the NCU PCB.3) Remove the two screws [1], and then remove the NCU PCB [2].F-9-23[1][2][1][2][1][2][1][1][1][1][2][1][2][1]Download Free Service Manual And Resetter Printer at http://printer1.blogspot.com