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18
HP L1502 LCD
Go to cover page
Display Adjustment:
Press
and
button simultaneously while power off.
Then press the power button
Adjust OSD menu to lower position of screen (i.g. adjust OSD HPosition
and OSD V-Position to 0 at OSD setup sub-menu. Then
press + or - button to move the cursor to Factory Entrance
item ( see yellow circle on table 1). Press MENU button to access
to factory mode (see table2.). Check the code of CPU version if it
is not right version, then ISP new one. After pre-check,
aging 1 hour at least. Programming Analog DDC data into
Monitor. Check # serial number to meet bar code label.
Table 2. The content of Factory setting.see table 2.
Cursor can move on gray color area
VAL:
Table 2
Display Adjustment
READ
1.Auto color adjustment
Apply a 640 * 480 / 60Hz signal with 16 level grey test pattern,
set brightness control at 100%, and contrast control at 50%.
Adjust the R. G. B offset, and gain to calibrate the color smoothly
and 64- grey level distinguishable.
2 Color temperature adjustment
Apply a 48.36kHz / 60Hz signal with white pattern.
Set brightness control at 100% and contrast control at 50%.
Adjust the R.G.B gain to reach special color temperature on center
of screen. Keep one color fixed gain to maximum at least.
2 .1 Aim the probe CA-A30 at the center of screen as Fig. 1
2 .2 Remove the lens protective cover of probe CA-A30.
2 .3 Set Measuring/viewing selector to Measuring position for reset
analyzer. (Zero calibration) as Fig. 2
2 .4 Turn on the colour analyzer (CA-110).
2 .5 Press 0-CAL button to start reset analyzer. See Fig.3
Fig.1
Fig.2
Fig.3
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