No. 51957
GM-P421U
GM-P420UG
49
Item
Test equipment
Test points
Ad justment
locations
Ad justment procedure
*
White balance adjustment should be carried out beforehand.
*
The PICTURE ADJ. in the MAIN MENU should be initialized.
Bright (1080i)
adjustment
Video signal
generator
WG07
1. Input the 1080i video s ignal gray scale pattern to the
COMPONENT terminal.
2. Adjust the value in the
<
SERVICE MENU
>
WG07 so that
the 4% portion on the screen of the panel is shown up as a
slight color tinting of the black while the 2% black portion do not
gleam with the illumination intensity which is brighter than that
of the preliminary electric discharge. (Care must be taken not to
make the blac k portions with signific ant black level.)
*
White balance adjustment should be carried out beforehand.
*
The PICTURE ADJ. in the MAIN MENU should be initialized.
*
VGA signal 640
×
480 dots (Horizontal frequency : 31.5kHz,
Vertic al frequency : 60Hz)
Bright (VGA)
adjustment
Video signal
generator
WA07
1. Input the VGA video signal gray scale pattern to the PC
terminal.
2. Adjust the value in the
<
SERVICE MENU
>
WA07 so that the
4% portion on the screen of the panel is s hown up as a slight
color tinting of the blac k while the 2% black portion do not
gleam with the illumination intensity which is brighter than that
of the preliminary electric discharge. (Care must be taken not to
make the blac k portions with signific ant black level.)
*
White balance adjustment should be carried out beforehand.
*
The PICTURE ADJ. in the MAIN MENU should be initialized.
*
VGA signal 640 x 480 dots (Horizontal frequenc y : 31.5kHz,
Vertic al frequency : 60Hz)
Bright
(RGB 15k)
adjustment
Video signal
generator
WI07
1. Input the VGA video signal gray scale pattern to the PC
terminal.
2. Adjust the value in the
<
SERVICE MENU
>
WI07 so that the
4% portion on the screen of the panel is s hown up as a slight
color tinting of the blac k while the 2% black portion do not
gleam with the illumination intensity which is brighter than that
of the preliminary electric discharge. (Care must be taken not to
make the blac k portions with signific ant black level.)
0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14
%
The 4% portion is shown up as a
slight color tinting of the blac k.
2%
0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14
%
The 4% portion is shown up as a
slight color tinting of the blac k.
2%
0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14
%
The 4% portion is shown up as a
slight color tinting of the blac k.
2%