55 5-45-4Adjustment > Adjustment when replacing parts > Controller System > Action to Take when Replacing the DC Controller PCBAdjustment > Adjustment when replacing parts > Controller System > Action to Take when Replacing the DC Controller PCBAction to Take after Replacing the ADF Scan Glass1.Enter the service mode, and then select the following:SCAN > READER > FUNCTION > CCD > DF-WLVL1/2/3/4 (DF white level adjustment)1) Place a sheet of paper that the user usually uses on the platen glass, enter theservice mode, and then select SCAN > READER > FUNCTION > CCD > DFWLVL1.Read the white level in the BOOK mode. (Check the transparency of the glass forBOOK mode.)2) Place a sheet of paper that the user usually uses on the DF, enter the service mode,and then select SCAN > READER > FUNCTION > CCD > DF-WLVL2.Read the white level in the DF mode (stream reading). (Check the transparency of theglass for stream reading.)(Read both sides of the chart.)3) Place a sheet of paper that the user usually uses on the platen glass, enter theservice mode, and then select SCAN > READER > FUNCTION > CCD > DFWLVL3.Read the white level in the BOOK mode. (Check the transparency of the glass forBOOK mode.)4) Place a sheet of paper that the user usually uses on the DF, enter the service mode,and then select SCAN > READER > FUNCTION > CCD > DF-WLVL4.Read the white level in the DF mode (stream reading). (Check the transparency of theglass for stream reading.)(Read both sides of the chart.)Controller SystemAction to Take after Replacing theMain Controller PCBAfter replacing the main controller PCB with a new one, take the following action:Download the latest firmware with the UST.Enter all values recorded on the service label affixed to the rear cover.Action to Take when Replacing the DC Controller PCBPrint the service data list in the service mode.REPORT > REPORT OUTPUT > SERVICE DATA LISTAction to Take after Replacement/RAM Clearing1) Clear the DC controller settings and counters.Enter the service mode, and Then select the following:CLEAR > ENGINE > ENGINE BKRAMCLK (Clearing of the RAM on the DC controllerPCB)2) Turn OFF and then ON the main power switch. (Turning OFF/ON the main power switchclears the RAM.)3) If uploading of backup data fails before replacement due to the damage to the DCcontroller PCB, enter the values of service mode items recorded on the service label.Since the values recorded on the service label may be outdated, check the service modeitem list (#SERVICE DATA LIST) printed out in advance, and then enter the latest values.4) Turn OFF and then ON the main power switch. (Turning OFF/ON the main power switchallows the values entered for the service mode items to take effect.)••
