Acer X1161 Acer X1161, X1261, X110 and H5360 Projector Series Service Guide - Page 68

4-10 Others 1. Function Inspection General  - All OSD functions must be checked for functionality. When OSD menu is displayed, there shall be no visible peaking, ringing, streaking, or smearing artifacts on the screen. Factory Default - The factory settings (with appropriate centering, size, geometry distortion, etc.) shall be displayed upon "Recall" is selected from OSD. Display Size - All preset modes shall expand to full screen size using OSD Horizontal and Vertical Size controls. Display Data Channel - T he purpose of the DDC test is to verify the (DDC) DDC1/DDC2B operation of the projector and to verify Plug & Play function. Acoustic - High pitch sound from cooling fan and color wheel is unacceptable. 2. Check points for exterior and print pattern Check item Text & Pattern Exterior Focus ring Logo Screw Pedestal Lamp Cover Plastic Parts Safety or warning label Connector Check point Missing letters & pattern or blurry prints are unacceptable. Dirt, scrape, water ripples and uneven color are unacceptable. Focus ring is functioning smoothly. Missing logo, missing prints and blurry prints are unacceptable All screws should be fixed and in right type. Well-functioned It should be locked in the correct place. All plastic parts can not be broken and damaged. All safety and warning labels should be visible, including all contents. All interface connectors should be complete and workable. X1161/X1261/X1161A/X1161N/X110/H5360 Confidential 4-12