Acer H7530D Series, Service Manual

Page: 81 / 124

Confidential
4-7
H7530/H7530D
4-7 Calibration
1. PC Calibration
Procedure - Test equipment: video generator
- Once Main Board is changed. PC Calibration
should be done as well.
(1) Test signal analog: 800 x 600@60Hz
(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 in Service Mode. When the
message "Success" appears, it means
"PC Calibration" is OK. Choose "Exit"
to leave the Service Mode.
Check pattern - Test signal: 1080p/60Hz
- Test pattern: 64 gray RGBW
* After finishing 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 sufficient and normal. (the
unidentified color levels on both left and right sides
should not over 8 color levels.)
2. Video Calibration
Procedure - Test equipment: video generator
- Once Main Board is changed. Video Calibration
should be done as well.
(1) Test signal: 720p
(2) Test Pattern: SMPTEbar
- Note
(1) Calibration pattern should be in full screen
mode.
SMPTE BAR
64 gray RGBW
White/Black