Others - Optoma ES526 Service Manual

4-9 Others

1. Function Inspection
General
Factory Default
Display Size
Display Data Channel - The purpose of the DDC test is to verify the
(DDC)
Acoustic
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
- 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.
- The factory settings (with appropriate centering,
size, geometry distortion, etc.) shall be displayed
upon "Recall" is selected from OSD.
- All preset modes shall expand to full screen size
using OSD Horizontal and Vertical Size controls.
DDC1/DDC2B operation of the projector and to
verify Plug & Play function.
- High pitch sound from cooling fan and color wheel is
unacceptable.
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.
ES526/EX536/EX531/CB2800/ES526L/EX536L
Check point
Confidential
4-13