EP776 Series/EP782 Series
Condential
4-17
4-11 Others
1. Functional Inspection
Keypad button - All keypad buttons must operate
smoothly.
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 appro-
priate 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 Hori-
zontal and Vertical Size controls
Display Data Channel (DDC) - The purpose of the DDC test is to
verify the DDC1/DDC2B opera-
tion of the projector and to verify
Plug & Play function.
Acoustic - High pitch sound from cooling fan
and color wheel is unacceptable.