Optical Engine Adjustment - Mitsubishi Electric WD-57831 Service Manual

Optical Engine Adjustments
Test Signal Activation
1) Press "MENU-2-4-5-7" (Service Mode)
2) Press "FF/FWD" (Test Pattern).
Red = 4% overscan
White = 5% overscan
Green = 6% overscan
Cyan = 7% overscan
Yellow = 10% overscan
Required Tools
8MM Hex Wrenche
Prelminary
The only disassembly required to perform Optical Engine mechanical adjustments is the rear cover removal.
There are only two mechanical adjustments verical keystone and picture rotation. Adjustments are made using the
internal test pattern shown above.
VERTICAL KEYSTONE
ADJUSTMENT
MODEL: WD-57831 / WD-65831 / WD-73831
Page 34
ROTATION
ADJUSTMENT