Philips 241B4PYCB/00, Service Manual, Page: 15 / 87

241B4LPY LCD 15
Color Adjustment
Alignment procedure
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1. Turn on the LCD monitor
2. Turn on the Timing/pattern generator. See Fig.1
3. Preset LCD color Analyzer CA-1 10
-Remove the lens protective cover of probe CA-A30.
-Set measuring/viewing selector to measuring position for reset
analyzer .(zero calibration) as Fig.2
- Turn on the color analyzer (CA-1 10)
-Press 0-CAL button to starting reset analyzer .
Fig.5
5.Display
Press "UP" or "DOWN" button to select . Change the value
by "UP" or "DOWN" key until the X, Y co-ordinates as below
5.1 Color temperature adjustment
Fig. 1 Fig.2
There are six factory preset white color 11500K, 9300K, 8200K, 7500K,
6500K, sRGB, 5000K
4. Access Factory Mode Align by Philips PerfecTune (also called FGA) function.
1). Turn off monitor. Apply full white pattern, with brightness in 100 % position and the contrast
control at 50 % position.
2). [Push "AUTO" & "MENU" buttons at the same time and hold them]
+[Press "power" button untill comes out "Windows screen" ]
The 1931 CIE Chromaticity (color triangle) diagram (x , y) coordinate for
the screen center should be:
=> then release all buttons
3).Press "MENU button, wait until the OSD menu with
Characters
" MERIDIAN 241B4LPY V1.0 2011-08-25” (below OSD menu)
come on the Screen of the monitor as shown in Fig3.
Product specification
CIE coordinates (x,y)
11500K x = 0.270 ± 0.02
y = 0.281 ± 0.02 PerfecTune II
9300K x = 0.283 ± 0.02
y = 0.297 ± 0.02 PerfecTune II
8200K x = 0.291 ± 0.02
y = 0.306 ± 0.02 PerfecTune II
7500K x = 0.298 ± 0.02
y = 0.314 ± 0.02 PerfecTune II
6500K/sRGB x = 0.313 ± 0.02
y = 0.329 ± 0.02 PerfecTune II
sRGB x = 0.313 ± 0.02
y = 0.329 ± 0.02 PerfecTune II
5000K x = 0.345 ± 0.02
y = 0.357 ± 0.02 PerfecTune II
Factory Mode indicator
Production alignment spec
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CIE coordinates (x,y)
11500K x = 0.270 ± 0.006
y = 0.281 ± 0.006 PerfecTune II
9300K x = 0.283 ± 0.006
y = 0.297 ± 0.006 PerfecTune II
8200K x = 0.291 ± 0.006
y = 0.306 ± 0.006 PerfecTune II
7500K x = 0.298 ± 0.006
y = 0.314 ± 0.006 PerfecTune II
6500K/sRGB x = 0.313 ± 0.006
y = 0.329 ± 0.006 PerfecTune II
sRGB x = 0.313 ± 0.006
y = 0.329 ± 0.006 PerfecTune II
5000K x = 0.345 ± 0.006
y = 0.357 ± 0.006 PerfecTune II
4). Press button, then select factory mode indicator by "MENU" "LEFT"
or "RIGHT" button .Press"MENU" button to bring up submenu
windows as below:
Quality Inspection specification
CIE coordinates (x,y)
9300K x = 0.283 ± 0.015
y = 0.297 ± 0.015
6500K/sRGB x = 0.313 ± 0.015
y = 0.329 ± 0.015