FOCUS adjustment
1. Receive five circles pattern, adjust the pattern to standard mode
2. Adjust focus potentiometer (horizontal output transformer) so that the
center and four corners of pattern are the best focus.
H
orizontal scanning, vertical scanning and geometry correction adjustment
1. Receive five circles pattern signal, enter RASTER ADJ menu to adjust the
following parameters:
1
．
V POSITION Vertical Position
2
．
V SIZE Vertical Size
3
．
H POSITION Horizontal Position
Grid voltage adjustment and White Balance adjustment
1. Enter factory menu firstly and set PICTURE to STANDARD.
2. Enter into factory mode to set the following parameters:
PICTURE ADJ menu
：
SUB BRIGHTNESS 160
SUB CONTRAST 80
CRT ADJ menu
：
CUT OFF-R 127
CUT OFF-G 127
CUT OFF-B 127
DRIVE R 63
DRIVE B 63
Enter into CRT ADJ menu, press 0 button to display one horizontal light
line on the screen, adjust grid potentiometer until this light line is just
appeared. Press 0 button again to exit the horizontal light line status.
Insert the plug for automatic adjustment, running white balance test
program (WB37150.EXE)
Receive A69 signal when you finish above steps, if gray scale could not reach seven and half cases,
just adjust PICTURE ADJ
—
SUB BRIGHTNESS item to meet this requirement.
Set USER MENU RESET OFF to initialize user menu after all test steps finishing, so that all menu
settings coincide with each other before the production leaving the factory.
（
If you have set password in P. LOCK submenu, user menu initialization must be operated
following the above steps after you exiting P.LOCK menu to clear the password in P.LOCK
submenu.
）
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