Optoma 723 Family, Service Manual

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EP721/727/723/728 Family / EW1610 Family Confidential
4-3
Defect specification table
4-5 Test Inspection Procedure
Update
Main
Board
Firmware
Color
Wheel
Lamp
Module
Engine
Module
ROD
Module
Version Update v v
Color Wheel Index v v
Reset lamp hour v
OSD v v
EDID v
Re-write Lamp
Hour Usage
v
ROD Adjustment v v
Note: If Color appears abnormal after changing Main Board Module, please do Color Wheel index
adjustment.
Change parts
Order Symptom Pattern Criteria
1 Bright pixel ( dots)
Black pattern
( IRE=O)
A+B=0
2 Dark pixel(dots) White pattern A+B≤3
3 Unstable pixel (dots) White & Black pattern A+B≤1
4 Adjacent dark pixel (dots) White & Black pattern A+B=0
5 Dark blemish (Dirty) Blue 60 pattern
A+B≤4
(diameter <1/2 inch)
6 Bright blemish (Dirty) Gray 30 pattern
A+B≤4
(diameter <1/2 inch)
7 Bright dot on frame Black pattern 1