3. Disassembly and Reassembly3.2. Maintenance3.2.1. Machine Cleaning for maintenance3.2.1.1. Cleaning the ACR/CTD sensor window1. Open the side cover.2. Clean the sensor window[A] by using a soft cloth.3. Close the side cover.4. Enter the SVC mode. Select “CTD Sensor Cleaning”.(Diagnostics > Image Management > Auto Color ToneAdjustment Condition > CTD Sensor Cleaning)5. When appearing the confirm popup menu, select “Yes”button on screen.NOTEIf you don’t execute “CTD sensor cleaning” menu onSVC mode after cleaning the sensor window, the errormessage will not disappear.Copyright© 1995-2016 SAMSUNG. All rights reserved. 3-3