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P5271/P5290/P5390W/P5271i
Condential
4-7
right sides should not over 4 color levels.)
- Gray level should not have abnormal color or
heavy lines.
- If color appears abnormal, please get into service
mode to do color wheel index adjustment.
4-8 PC Calibration
Procedure - Test equipment: video generator
- Once Main Board is changed. PC Calibration
should be done as well.
(1) Test signal analog: 1024 x 768 @60Hz (for(for
P5271/P5290/P5271i);
1280 x800@75H (for P5390W)
(2) Test Pattern: White (up) Black (down)
- Note
(1) Calibration pattern should be in full screen
mode.
(2) Please press "Power", "Left", "Left" and
"Menu" buttons sequentially to get into
Service Mode.
(3) Choose "Analog Settings", press "Menu"
button to access "PC Calibration" for
correction. Choose "Exit" to leave the Service
Mode.
Check pattern - Test signal: 1024 x 768 @60Hz (for(for
P5271/P5290/P5271i);
1280 x800@75H (for P5390W)
- Test pattern: 64 gray RGBW
* After nishing ADC adjustment, check 64 gray
RGBW pattern.
Inspection item - Color saturation
Criteria - There should not have any lack of RGBW. The
color should appear normal and sort in right order.
- Color levels should be sufcient and normal. (the
unidentied color levels on both left and right sides
should not over 8 color levels.)
White/Black
64 gray RGBW