P7280/P7270I/P7280 Refresh/P7270I Refresh
Confidential
4-11
4-9 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 vis
-
ible peaking, ringing, streaking, or
smearing artifacts on the screen.
Factory Default
- The factory settings (with appropri
-
ate centering, size, geometry distor
-
tion, 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 (DDC)
- The purpose of the DDC test is to
verify the DDC1/DDC2B operation
of the projector and to verify Plug &
Play function.
Acoustic
- High pitch sound from cooling fan
and color wheel is unacceptable.