Philips 180P1L/00 Service Manual page 41

White Balance Adjustment
Alignment procedure
1. Turn on 180P LCD monitor.
2. Turn on the Timing/Pattern generator. See Fig. 1
Setting generator to provide CROSS-Hatch pattern at
Resolution : 1280 x 1024
Timing : H= 80 KHz
V= 75 Hz
3. Preset LCD colour Analyzer CA-110
- 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 colour analyzer (CA-110).
- Press "0-CAL" button to starting reset analyzer. See Fig. 3
Fig. 1
0-CAL
4. Entering factory adjustment mode of LCD Monitor.
- To hold and buttons then power on the monitor. Press
to bring up OSD menu for confirmation.
POGO2 V0.17 2000-05-09
Factory mode
Note : after alignment, please reset OSD to user's mode for normal
operation. Otherwise, the monitor won't entering power saving
mode and showing full white picture all the time as no video
signal supplied. To leave factory mode by restart the monitor.
Back
Colour Adjustment
cover (black) cover (black)
Measurement/viewing selector Measurement/viewing selector
Fig. 2
Fig. 3
5. Adjust OSD menu to lower position of screen (i.g. adjust V-position to
value " 0" at submenu of OSD Setting.
6. Setting Brightness and Contrast
- Adjust Brightness to value "100".
- Adjust Contrast to value "50".
7. Switch light probe to "Viewing" position.
8. Move the "Lens barrel" forward or backward to get clear image as
shown in Fig. 4
9. Switch light probe to "Measuring" position. It should be able to
indicate colour value on the CA-110.
Measurement/viewing selector Measurement/viewing selector
Fig. 4
10. Setting pattern to full white picture.
11. Press then select "POGO2 V0.17 2000-05-09" by
12. Press to bring up submenu as following windows.
-
POGO2 V0.17 2000-05-09 POGO2 V0.17 2000-05-09
AUTO AUTO SUB SUB
9300K 9300K R R 205
6500K 6500K R R 255
22
OFFSET OFFSET R R
GAIN GAIN R R
9300 K
13. Press or buttons to select R G B. Increase/decrease value by
press or buttons until the X, Y co-ordinates as below:
x= 0.281 0.005
y= 0.311 0.005
Y>= 155 nits
6500 K
14. Setting X, Y value listed as below:
X= 0.312 0.005
Y= 0.338 0.005
Y>= 155 nits
Alignment hits: 1. R for x value , G for y value, B for Y value on the
colour analyzer.
2. If the colour analyzer has been calibrated and preset
colour temperature in it. Please switch to correct
setting in accordance with colour settings.
41
180P LCD
Go to cover page
Clear image
button.
-
OK 166
SUB SUB CON CON
G G B B
255
233
G G 255 B B
149
20
G G B B
20
G G B B
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